Abstract: A method and apparatus to mitigate the severity of the bond-line read-out defect, and more specifically microwave heating to locally cure adhesive bond-line in a single or two stage process comprising heating thermoset adhesive with microwave radiation until the adhesive is fully cured or partially cured. If the adhesive is partially cured, it can be fully cured by being subjected to an additional thermal cycle.

Abstract: A load-bearing composite structure for connection to a support body or structure. The load-bearing structure includes a load-bearing element that is made up of continuous reinforcing fibers and a resin matrix. The load-bearing element has an attachment portion for connection to the support body. The load-bearing composite structure further includes a connection element that is formed using a molding material which is composed of discontinuous fibers and a resin matrix. The molding material is molded over the surface of the attachment portion of the load-bearing element.

Abstract: The present invention involves a cover for a moveable spraying device of a robot which is formed from a polymer with enhanced residue retention properties. The polymer may be processed to increase the surface energy of the polymer. For example, the polymer may be subjected to a corona treatment in order to increase its surface energy. The corona treatment process may be performed on the polymer as received, prior to cutting or otherwise manipulating the polymer. Also, the polymer may be embossed to provide the enhancement. To assemble the polymer into a robot cover, the polymer as received may be cut into individual sections for assembly. The sections may then be assembled to one another by heat sealing the sections together. The heat sealing provides a bond between the individual sections of polymer that secures the individual sections together to create the robot cover.

Abstract: There is provided a method for manufacturing a carbon nanostructure with reduced occurrence of a bend and the like. The method for manufacturing a carbon nanostructure according to the present invention includes the steps of: preparing a base body formed of a catalyst member including a catalyst and a separation member that are in contact with or integral with each other (preparation step); oxidizing at least a part of a contact portion or integral portion of the catalyst member and the separation member (oxidation step); bringing a carbon-containing source gas into contact with the catalyst member and/or the separation member (CNT growth step); and growing a carbon nanostructure (CNT growth step). In the CNT growth step, the carbon nanostructure is grown in a separation interface region between the catalyst member and the separation member, by heating the base body while separating the separation member from the catalyst member.

Abstract: Printed active origami combines printed electronics with nanomaterial coated polymer based actuators to create active printed structures. The fabrication processes include the step of applying carbon nanomaterial coatings to polymeric films. Products produced by the processes include actuating materials, such as solid state actuators that can be used as active element(s) in a printable active origami robot.

Abstract: A method of joining first and second stretchable fabric portions to one another in a desired configuration comprises the steps of sewing a first thread through at least one of the first and second fabric portions to define a first stitch formation looping a second thread within the first stitch formation such that the second thread and the first thread overlap one another to create a sewn seam, one of the threads being a fusible thread and the other of the threads being a non-fusible thread; positioning the first and second fabric portions relative to one another in a desired configuration; melting the fusible thread; and forming a plurality of discrete bonding element portions extending along a bonding path. The discrete bonding element portions retain the first and second fabric portions in the desired configuration.

Abstract: A roofing laminate includes a roofing membrane, preferably a white roofing membrane, which is covered with a protective sheet. The protective sheet is tinted so that it has a coloration distinguishable from the roofing. The roofing laminate is applied to a roof surface and the release liner protects the outer surface of the membrane from scrapes and dirt during installation. Once the roof is installed the protective sheets are removed from all of the membrane sheets, exposing a clean surface.

Abstract: A yarn or thread may include a plurality of substantially aligned filaments, with at least ninety-five percent of a material of the filaments being a thermoplastic polymer material. Various woven textiles and knitted textiles may be formed from the yarn or thread. The woven textiles or knitted textiles may be thermal bonded to other elements to form seams. A strand that is at least partially formed from a thermoplastic polymer material may extend through the seam, and the strand may be thermal bonded at the seam. The woven textiles or knitted textiles may be shaped or molded, incorporated into products, and recycled to form other products.

Abstract: A base element for a fixing belt are provided. The base element includes a sheet which is made of a heat resistant resin and has opposite end portions joined in an endless state. A conductive film layer of a thickness of 3 to 15 ?m is provided over two third or more area of an inner surface of the endless belt.

Abstract: The present invention provides a combined backplane and a backlight module using the combined backplane. The combined backplane includes a body and a first bracket coupled to the body. The body includes a base plate. The first bracket includes a first bottom plate and a first side plate perpendicularly connected to the first bottom plate. The first bottom plate has an end distant from the first side plate and coupled to an end of the base plate. The base plate and the first bracket are made of different materials. The combined backplane of the present invention is formed by combining a body with a bracket. The body is made of a high-strength material to improve overall strength of the backplane and the bracket is made of a material of high thermal conductivity to improve overall thermal conductivity of the whole backplane.

Abstract: A lid for a crystal growth chamber crucible is constructed by forming arcuate sector-shaped portions and coupling them in abutting relationship, for example by welding, to form an annular profile fabricated lid. The arcuate sector-shaped portions may be formed and removed from a lid fabrication blank with less waste than when unitary annular lids are formed and removed from a similarly sized fabrication blank. For example, the sector-shaped portions may be arrayed in an undulating pattern on the fabrication sheet.

Abstract: Disclosed in this specification is a protective cover for baseboards. The protective cover comprises a central, rigid panel with an upper surface and first and second baseboard protectors flexibly attached thereto.

Abstract: Methods to substantially reduce or eliminate optical non-uniformity across an interface may also substantially improve the strength and ease of seam manufacturing, including joining substrates. The methods may include managing optical non-uniformities at least by broadening a region over which a change in optical loss may occur and/or by maintaining a substantially constant average optical loss across an interface. The methods may also include forming a seam that substantially reduces the appearance of optical non-uniformities at the seam, which may include maintaining approximately constant average loss in the vicinity of the seam by substantially controlling reflectivity in the vicinity of the seam, in which substantially controlling reflectivity in the vicinity of the seam may include employing a backer treated to minimize optical reflectivity over a range of angles.

Abstract: A composite panel comprises a first outer layer, a second outer layer, a filler layer, and a joint section of the composite panel. The filler layer is positioned between a portion of the respective first and second outer layers. The first and second outer layers are positioned adjacent one another without an intervening filler layer.

Abstract: A composite seam system including a narrow weld bead joining two panels of fabric and a seam tape applied thereon. The applied seam tape comprises a top layer, a reinforcing layer and an adhesive layer melted through the reinforcing layer and connecting the top layer to the fabric panels over the weld bead. The narrow weld bead and the small seam allowance of the fabric panels it joins allows the seam tape to be secured over the weld bead to the fabric panels while lying in a flat plane. The use of a narrow reinforcing layer of woven polyester, nylon or non-woven ultra-fine fibrous material in the seam tape allows the seam tape to be flexible enough to move with the fabric it joins, reducing the incidence of tape edge abrasion.

Abstract: A composite part includes a first composite section and a second composite section connected by a flexible section. The first composite section has a laminated structure including multiple layers of reinforcement material supported by a matrix material. The second composite section has a laminated structure including multiple layers of reinforcement material supported by a matrix material, and a flexible composite section joins the first composite section to the second composite section. The flexible composite includes multiple layers of a fabric material supported by a flexible elastomer. The multiple layers of the fabric material overlap with the first composite section and the second composite section by being layered in between at least a portion of the multiple layers of reinforcement material forming the laminated structures of the first composite section and the second composite section.

Abstract: A vehicle deck board 1 is molded in such a manner that a lower die 21 and an upper die 22 are clamped together in a state where foamed resins 13 and reinforcements 20 are interposed between a back surface side sheet material 16 and a front surface side sheet material 15, whereby the back surface side sheet material 16 and the front surface side sheet material 15 are welded to each other to thereby form a laminated member 26 with height-increasing bridge members included therein, compressed air is injected into an inside of the laminated member 26 with the height-increasing bridge members included therein, which is formed by welding the back surface side sheet material 16 and the front surface side sheet 15, while individually vacuum-sucking the back surface side sheet material 16 and the front surface side sheet material 15 to the lower die 21 and the upper die 22, and the laminated member 26 concerned is subjected to blow molding.

Abstract: An apparatus and methods for thermally treating webs having thermoplastic respectively meltable compounds, thereby creating cylindrical or elliptic consolidation regions which may optionally have an aperture by employing a thermal energy source, such as ultrasonic energy, as well as to webs with elliptic consolidation regions. In a particular, the apparatus and methods create consolidation regions by using an anvil with a flexible elongated member, such as a wire, a chain or a tubular anvil with circumferential ribs.

Abstract: A method and resulting multi-layered media product including a printed layer and a liner layer having inner surfaces adhered together with a clear poly material sandwiched therebetween. The multi-layered media product includes a first section separable from a remainder of the product and containing printed indicia thereon, a second section separable from a remainder of the product and having a removable printed label thereon, and a third section convertible to an envelope. The third section contains printed indicia on one side thereof and a window of the clear poly material on another side thereof. In operation, the sections of the multi-layered media product are separated and a labeled container can be placed in the envelope and the envelope sealed to prevent tampering.

Abstract: A process for deterring behavior of pets which includes providing a device comprising a reflective metalized plastic sheet having a thickness of about 0.5 to 10.0 mils, having a reflective and non-reflective side and capable of making a sound when the sheet is flexed by pressure from a pet, a fibrous layer, and a decorative fabric layer, where the layers are joined together to form the device, and the reflective side of said reflective plastic layer is oriented outward, where the device is capable of being folded or rolled-up, and when placed on an object, the device deters pets from getting on said object.

Abstract: A composite blast door, when used as an exterior door of a protected structure, can significantly decrease the risk of life threatening hazards to interior occupants. The composite blast door is composed of outer sheets of steel, intermediate sheets of fiber reinforced polymers (FRP), and a filled core of vaporized aluminum. Rubber gaskets may be used as a buffer layer between the FRP and vaporized aluminum core. Fabrication begins with a door skeleton created from steel framing elements, either hollow structural steel members or channels. Afterwards, the rear panels are attached to the door skeleton in inward order: beginning with the outer steel plate, then the FRP sheet and lastly the optional rubber gasket. The door can now be used as a form to receive the vaporized aluminum filling. After filling, the front panels are attached in the reverse order as the rear panels; rubber first, then FRP, then steel.

Abstract: There are provided a vehicle interior finishing laminate sheet in which a polypropylene resin foam board of high foaming extent having interconnected cells is used as a core member, a vehicle interior trim material, a method for manufacturing the vehicle interior finishing laminate sheet, and an apparatus therefor. The present invention relates to a vehicle interior finishing laminate sheet 1 provided with a core member consisting of a polypropylene resin foam board 2. The polypropylene resin foam board 2 is extrusion molded into a plate shape, and has an interconnected cell ratio of 50% or higher and a foaming extent of 10- to 50-fold. A plurality of polypropylene resin foam boards 2, 2 are joined to each other by the hot plate welding method or the laser transmission welding method, whereby a large-size core member of vehicle interior finishing laminate sheet 1, which is used for a roof lining or the like, can be formed.

Abstract: A large area patterned film includes a first patterned area; a second patterned area; and a seam joining the first patterned area and the second patterned area, wherein the seam has a width less than about 20 micrometers. A method for tiling patterned areas includes depositing a predetermined thickness of a curable material; contacting a first portion of the curable material with a mold; curing the first portion of the curable material; removing the mold from the cured first portion of the curable material; contacting a second portion of the curable material with the mold, such that the mold contacts a portion of the cured first portion of the curable material; curing the second portion of the curable material; and removing the mold to yield a seam between the cured first portion of the curable material and the cured second portion of the curable material, wherein the seam has a dimension less than about 20 micrometers.

Abstract: A system and method is presented that provides a manual sonic welding device for welding multiple labels or other articles together. The manual sonic welding device includes an anvil and a head. The anvil is where the labels are placed on the welding device and allows the high frequency vibration from the welding device to be directed to the proper interfaces of the labels. The head allows the multiple labels to be assembled under pressure. Additionally, the manual sonic welding device includes a converter, a sonic horn, and a power supply to seal the multiple labels together. The power supply delivers a high power AC signal, the converter converts the electrical signal into a mechanical vibration, and the sonic horn applies the mechanical vibration to the labels to be welded. The manual sonic welding device also includes dual safety switches which activate the device.

Abstract: A hot melt adhesive, having a viscosity from 10,000 mPas to 150,000 mPas at 140° C., containing at least 75 wt % of a thermoplastic polyurethane having an average molecular weight from 5000 to 40,000 g/mol and method of making a composite film using this adhesive.

Abstract: A stitchless seam between a first panel having a functional layer and a second panel having a functional layer is provided. The seam system is formed via a discontinuous fused stitchless seam which connects a first panel to a second panel. A reinforcement may be used to strengthen the discontinuous fused stitchless seam connecting the first panel to the second panel, allowing formation of a liquid-impervious stitchless seam system. A method for forming the system is also provided.

Abstract: An injection-molded part according to the invention has at least one thermoplastic inlay part and one thermoplastic composite element injection-molded onto the inlay part. The at least one inlay part on its boundary face with the composite element has at least one raised feature for material-locking sealing between the inlay part and the composite element. The raised feature protrudes with a height H1 into the composite element and forms a narrowed cross section in the composite element having a height H2. The at least one raised feature, on its flux leading end, has a first chamfer, and the ratio of the height of the narrowed cross section to the height of the raised feature is in the range between 0.6 and 0.9.

Abstract: A welding alignment and spacing article is provided for forming a welding gap between two structures to be welded together. The article includes a body having first and second surfaces that are spaced from each other at a selected spacing distance to define a region of selected body thickness. The body is formed from a non-metallic degradable body material in the region that can be wholly or partially degraded by exposure to a degrading agent to reduce the body thickness. The body is also formed from a non-degradable body material in the region. The degradable body material and the non-degradable body material are sufficiently incompressible to be useable as a spacer that maintains a specified welding gap distance between the two structures to be welded.

Abstract: A vehicle deck board 1 is molded in such a manner that a lower die 21 and an upper die 22 are clamped together in a state where foamed resins 13 and reinforcements 20 are interposed between a back surface side sheet material 16 and a front surface side sheet material 15, whereby the back surface side sheet material 16 and the front surface side sheet material 15 are welded to each other to thereby form a laminated member 26 with height-increasing bridge members included therein, compressed air is injected into an inside of the laminated member 26 with the height-increasing bridge members included therein, which is formed by welding the back surface side sheet material 16 and the front surface side sheet 15, while individually vacuum-sucking the back surface side sheet material 16 and the front surface side sheet material 15 to the lower die 21 and the upper die 22, and the laminated member 26 concerned is subjected to blow molding.

Abstract: A note-carried liquid pack for application on an article by machine includes a base note layer with printed indicia on a top note face. The note-carried liquid pack also includes first and second fluid-impermeable, substantially transparent laminate layers overlying the base note layer. A first adhesive secures the first laminate layer to the base note layer, and a second adhesive secures the second laminate layer to the first laminate layer along an endless adhesive boundary. The endless adhesive boundary surrounds a central portion devoid of adhesive, in which the laminate layers define a liquid-holding pocket therebetween. A substantially transparent liquid is disposed within the pocket to be sealed therein so long as at least portions of the laminate layers adjacent the pocket remain secured to one another. The printed indicia is viewable through the laminate layers and through the pocket.

Abstract: A method for coating a preformed core having two faces and an edge around the periphery of the core, which edge links the two faces, includes thermoforming of a polymer material. The coating is formed by the heating, gluing and vacuum application of the two sheets of polymer material which are applied successively to the two faces of the core in order to cover same completely. An automatic machine can be used to carry out the method. The method can be used to produce finished products, in particular surfboards, furniture or display objects.

Abstract: A composite structure comprises stacked sets of laminated fiber reinforced resin plies and metal sheets. Edges of the resin plies and metal sheets are interleaved to form a composite-to-metal joint connecting the resin plies with the metal sheets.

Abstract: A seam joining structure (1) includes a first material web (10) with a first barrier layer (42) and with a first edge (14) on an outer boundary of the first material web (10), a second material web (30) with a second barrier layer (42) and with a second edge (34) on an outer boundary of the second material web (30), as well as at least one seam (21) that joins the first and second material webs (10, 30) in a seam area (3) to form a first seam allowance (13) between the seam (21) and the first edge (14) of the first material web (10) and to form a second seam allowance (33) between seam (21) and the second edge (34) of the second material web (30). The first and second material webs (10, 30) are arranged one above the other in seam area (3) and the second seam allowance (33) is folded around the first edge (14) of the first material web (10) and covers the at least one seam (21) to form a seam cover (2), whereby the seam cover (2) is joined in the seam area (3) to the first material web (10).

Abstract: A display apparatus includes a display apparatus comprising, a display panel comprising a front substrate and a back substrate, at least one structure disposed in the rear of the display panel, and a supporting film attached to the display panel and connected to at least one structure.

Abstract: A non-woven textile may be formed from a plurality of thermoplastic polymer filaments. The non-woven textile may have a first region and a second region, with the filaments of the first region being fused to a greater degree than the filaments of the second region. A variety of products, including apparel (e.g., shirts, pants, footwear), may incorporate the non-woven textile. In some of these products, the non-woven textile may be joined with another textile element to form a seam. More particularly, an edge area of the non-woven textile may be heatbonded with an edge area of the other textile element at the seam. In other products, the non-woven textile may be joined with another component, whether a textile or a non-textile.

Abstract: A method serves to produce a three-dimensional object by additive construction in direct construction sequence from solidifiable material, which is either present in the starting state in a fluid phase or can be liquefied, where multiple material components are discharged alternately in a programmable manner by means of multiple discharge units and configure different parts of the object joined to one another as a result of the discharge, where the geometric proportions obtained during discharge already correspond to the object, and because the material components form between them either edge regions merging into one another without boundaries or boundary regions of the different material components abutting one another without joining, a method and an object produced therewith can be provided, in which boundary and edge regions are formed “as if from one piece” between different material components even in the case of complex geometries.

Abstract: An extrudable polyvinyl chloride composition comprising from 80 to 99.9 percent by weight polyvinyl chloride for use in extruding a first part and a second part, wherein a fusion joint between the first extruded part and the second extruded part is formed by: A) composition at least a portion of a first terminal edge of the first extruded part and a first terminal edge of the second extruded part; B) engaging the melted terminal edges; and C) maintaining pressure between the engaged terminal edges to create a fused joint having a strength that is at least 50% of the tensile strength of the extruded part as measured by ASTM D638-2a. The extruded parts can be pipe sections.

Abstract: A novel method and set of structures for performing resistive implant welding of two plastic components to form an assembly. A first one of the components to be welded includes a channel structure which receives the resistive implant and maintains it in a desired position until the welding operation is performed. The second component to be welded includes a complementary structure including a land which is sized to engage the channel structure and captive resistive implant on the first component. The two components are pre-weld positioned with the land in the channel structure and the positioned components are then placed in a press which exerts a pre-selected pressure on the interface between the channel and the land. Next, a pre-selected electric current is passed through the resistive implant to heat it and to bring the plastic material of the channel structure and the land to their molten points, where they intermingle through the resistive implant.

Abstract: A sub-centimeter structure includes a first structural component, a second structural component arranged proximate the first structural component, and a joint connecting the first and second structural components. The joint includes a material that has a first phase that is substantially rigid to hold the first and second structural components in a substantially rigid configuration while the material is in the first phase. The material of the joint has a second phase such that the joint is at least partially fluid to allow the first and second structural components to move relative to each other while the material is in the second phase. The joint interacts with the first and second structural components while the material is in the second phase to cause the first and second structural components to move relative to each other. And, the first and second structural components include a polymer.

Abstract: A method of joining laminate panels includes providing at least two laminate panels and joining together the seam areas of the at least two laminate panels by forming at least one seam. Each laminate panel includes at least one layer of textile material having a first thickness in a non-seam area and a second thickness in a seam area. The second thickness is less than the first thickness. An article of manufacture includes at least two laminate panels joined together at the seam areas of the at least two laminate panels by forming at least one seam. Each laminate panel includes at least one layer of textile material having a first thickness in a non-seam area and a second thickness in a seam area.

Abstract: A welded joint for structural component having two or more portions fused together at a weld line. An adhesive layer is placed between the two or more portions at the location of the weld line and a conductor is placed between the two or more portions in operable contact with the adhesive. Energy is transmitted through the conductor and into the adhesive layer to activate the adhesive layer and create the weld line that defines the welded joints between the two or more portions. The welded joint of the structural component allows energy to be injected into the adhesive layer via the conductor in order to cause the adhesive layer to activate from the inside of the adhesive outward. The conductor can be placed adjacent the adhesive layer or within the adhesive layer in order to cause the adhesive to be activated from the inside outward.

Abstract: A method for joining two or more substrates with a seam is provided. The seam is formed with a thermoplastic tape that is capable of forming an adhesive bond and a physical bond with a substrate. For instance, in one embodiment, the thermoplastic tape is formed from a polyurethane film. In addition, the seam can be utilized in a flat configuration or folded into a variety of different shapes, such as in a z-shaped configuration. As a result of the present invention, it has been discovered that a seam can be formed to have improved strength without substantially sacrificing the desired functional properties of the substrate materials.

Abstract: A pliable sheet material suitable as a ground cover, said material comprising or including a core region of a bonded matrix of paper shreds, a kraft paper liner on at least one side of the core region bonded to the matrix, and a kraft paper including sheet assembly that includes a tear resistant material selected from a mesh material, woven material or non-woven material and which sheet assembly is bonded to the matrix of the core region on the other side.

Abstract: An adhesive tape for flying splice, having a left and right boundary edge, at least one main carrier and a first layer of self-adhesive on the obverse of the main carrier, the reverse of the main carrier bearing a parting system suitable for effecting an adhesive bond to a substrate that can be parted again in such a way that sticky residues are left neither on the reverse of the main carrier nor on the substrate in the region of the parted bond, the parting system being constructed in the form of a multiply interrupted stripe having a plurality of segments that extends in the longitudinal direction of the adhesive tape, the individual segments having less of an extent in the longitudinal direction of the adhesive tape than the adhesive tape itself, and the parting system being suitable for effecting the parting process without the main carrier being damaged.

Abstract: A part for an appliance, such as a surface cleaning apparatus, a method of making the part, and a method of disassembling the part are disclosed. The part comprises at least first and second plastic members resistively welded together. In some embodiments, the plastic members define a fluid flow cavity, such as a portion of the air flow path through the surface cleaning apparatus.

Abstract: An adhesive tape for flying splice, having a left and right boundary edge, at least one main carrier and a first layer of self-adhesive on the obverse of the main carrier, the reverse of the main carrier bearing a parting system which is suitable for effecting an adhesive bond to a substrate that can be parted again in such a way that sticky residues are left neither on the reverse of the main carrier nor on the substrate in the region of the parted bond, the parting system being constructed in a particular form as described herein.

Abstract: An extruded oriented thermo-plastic polymeric element for industrial textiles, and textiles comprising polymeric elements. The polymeric elements are constructed of a material selected from yarn material, fiber material and film, and comprise a thermoplastic polymer, and at least one dry lubricant, selected from molybdenum disulphide, tungsten disulphide, boron nitride, and a soft metal, the dry lubricant comprising particulate matter having an average particle size between about 0.05? and about 100?, and present in the polymeric element in an amount from between about 0.1% and about 10% parts by weight, based on a total weight of the polymeric element. The polymeric elements can be used as yarns in woven and non woven textiles, and as seaming elements. The polymeric elements provide increased abrasion resistance in industrial textiles, and reduced co-efficient of friction.

Abstract: The Auto-Aligning Joint Architecture consists of adding endpoint margin regions to sheets which are intended to be joined together. A series of T shaped cuts are made into the margin regions to create alternating connected or disconnected margin regions. The connected margin regions of one sheet align to the disconnected margin regions of the other sheet, such that connected margin regions can fit into disconnected margin regions, thereby joining both sheets together with great precision.

Abstract: A method for manufacturing a reticular contact body element includes the process of manufacturing a rotating circular reticulate contact body element 4 by cutting and processing a synthetic resin fiber block that is formed by gluing the intersections of fiber yarn formed in the shape of a three-dimensional reticulum, cutting the synthetic resin fiber block to form fan shapes, making through holes 20 in the fan-shaped reticulate contact body element precursor, forming compression sections 25 by compressing the periphery 21 of the reticulate contact body element precursor and the circumferences of the through holes 20 with a hot press machine, hot-pressing the whole face of the reticulate contact body element precursor except its periphery 21 and the circumferences of the through holes 20 with the hot press machine at temperatures of 90-140° C.

Abstract: It is an object of the present invention to provide a laser-welded article that workpieces prepared simply can be easily unified by laser in one laser welding process without using complicated processes. Moreover, the laser-welded article has sufficient welding strength of the molded workpieces, and does not damage the resin property. The laser-welded article comprises: an integral construction of a single weakly laser-absorptive molded workpiece or plural weakly laser-absorptive molded workpieces, which is welded by exothermic through irradiating laser under butting at least a part of edge portions thereof, wherein the workpiece or the workpieces include a thermoplastic resin and a weakly laser absorbent to have an absorbance: a ranging from 0.07 to 3.0, and have abilities of absorbing at least partial beam of the laser and transmitting other partial beam of the laser.