Abstract: A method for synthesizing 1,4-bis(4-aminophenoxy)naphthalene and a series of polyamides, polyimides and copoly(amide-imide)s derived from the said compound is disclosed. These polymers possess excellent thermal stability and mechanical strength.

Abstract: An improved method of reaction of water PU resins for improving the blocking reactions of beta-dicarbynal compounds and polisocynantes, and reducing the reaction time for water PU blocking, wherein the construction is: ##STR1## wherein: R.sub.1,R.sub.2,R.sub.3,R.sub.4 =hydrogen or alkyl groupn.sub.1 =1.about.100n.sub.2, n.sub.3, n.sub.4 =1.about.10The blocking agents of beta-Dicarbonyl compounds are reduced by D.sub.1 and D.sub.2 which are used in the blocking reactions of water PU.

Abstract: This automatic admixtrue dosing and pH value control batch dyeing system is comprised of a pH value gauge, a thermometrer, a pump for adding chemicals, a drain valve, a chemical tank, a continuous action depth gauge, a mixing valve, and a chemical input valve. The controller is designed to proceed according to several chemical graphs located inside the controller. The user, depending on the requirment of chemical dosing and pH value control, sets the time for inputting chemical and a predetermined pH value. When this is done, the controller, according to the selected chemical graphs and target pH values, operates the chemical pump, the mixing valve, and the chemical dosing valve. The chemical module flow into action, and the dye liquor in the chemical tank flow into the dye machine. The depth gauge, the pH gauge and the thermometer measurs the volume of liquid in the chemical tank, and the pH value and temperature of the dye liquid in the dye machine.

Abstract: A pencil marking device for clipped cloth includes a fixing base, a pencil pedestal, a driving pedestal, a driving source, and at least two sensors, in which the fixing base is fixed on the automatic marking machinery, and the pencil pedestal is connected in it. The tooth ring is formed on the outside of the pencil pedestal. The driving pedestal is installed on one side of the fixing pedestal and is engaged with the tooth ring of the pencil pedestal through an active gear rack for driving the pencil pedestal to rotate at a fix point. The active gear rack is connected with the driving source by an U shape connection and driven to move horizontally by the driving source. The sensors are installed on the ends of the driving pedestal respectively for sensing the moving range of the active gear rack. The range of the horizontal movement of the active gear rack is restricted for driving the pencil in the pencil pedestal to rotate and mark at a fix position, then an automatic pencil marking device is constructed.

Abstract: A low temperature microemulsion dyeing process for polyester fibers includes the steps of microemulsifying a swelling agent in water to form a continuous microemulsion solution, adding dyestuff and a dye solubility assistant agent selected from the group of short chain alcohols, dyeing polyester fibers at room temperature for 1-3 hours, washing the polyester fibers with a nonionic washing agent and thereafter drying the dyed polyester fibers.

Abstract: A system for spinning is provided where a pair of carding machines are arranged side by side. A first drawn sliver is produced by feeding two carded slivers simultaneously into a sliver collector and a drafting system. The drafting system includes a pair of linear density sensors disposed at the inlet and outlet thereof and coupled to a control system for controlling the draft ratio of a first drafting zone to maintain the inlet and outlet linear density at a predetermined value.

Abstract: An improved carding machine for high voltage short fiber removal is provided, The mechanism utilizes a number of rollers arrayed in a semicircular configuration positioned near the pylon roller in order to shorten the distance between the last of the short fiber removal mechanisms and the pylon roller. The shortened distance achieves the practical effect of increasing fiber purity and straightness by providing for a more efficient method of short fiber removal.

Abstract: A water-permeable and fire-resistant film and the preparing method thereof is disclosed. The water-permeable and fire-resistant film comprises polyurethane resin; a first fire-resistant agent; a second fire-resistant agent, an inorganic fire-resistant agent and an additive agent. The first fire-resistant agent used is selected from the group consisting of paraffine chlorinated, decabromodiphenyI oxide, hexachloro benzene, hexabromo benzene, pentabromo ethyl benzene, pentabromo diphenyl oxide and octabromo diphenyl ether. The second fire-resistant agent used is selected from the group consisting of Sb2O3 and Sb2OS. The surface of the film produced is smooth.

Abstract: A water-permeable and fire-resistant product and the preparing method thereof is disclosed. The water-permeable and fire-resistant product is made of a fabric layer and a purous film adhered thereon. The porous film of this invention comprises polyurethane resin; a first fire-resistant agent; a second fire-resistant agent, an inorganic fire-resistant agent and an additive agent. The first fire-resistant agent used is selected from the group consisting of paraffine chlorinated, decabromodiphenyl oxide, hexachloro benzene, hexabromo benzene, pentabromo ethyl benzene, pentabromo diphenyl oxide and octabromo diphenyl ether. The second fire-resistant agent used is selected from the group consisting of Sb2O3 and Sb2O5. The surface of the product produced is smooth.

Abstract: A water-permeable and fire-resistant film and the preparing method thereof is disclosed. The water-permeable and fire-resistant film comprises polyurethane resin; a first fire-resistant agent; a second fire-resistant agent, an inorganic fire-resistant agent and an additive agent. The first fire-resistant agent used is selected from the group consisting of paraffine chlorinated, decabromodiphenyl oxide, hexachloro benzene, hexabromo benzene, pentabromo ethyl benzene, pentabromo diphenyl oxide and octabromo diphenyl ether. The second fire-resistant agent used is selected from the group consisting of Sb203 and Sb205. The surface of the film produced is smooth.

Abstract: A method to improve bonding of breathable coatings onto fabrics uses a hydrophobic polyurethane resin solution having isocyanates and/or double bond polar group crosslinking agents. The substrates used for coating are nylon and polyester taffeta.

Abstract: A water-permeable and fire-resistant product and the preparing method thereof is disclosed. The waterpermeable and fire-resistant product is made of a fabric layer and a purous film adhered thereon. The porous film of this invention comprises polyurethane resin; a first fire-resistant agent; a second fire-resistant agent, an inorganic fire-resistant agent and an additive agent. The first fire-resistant agent used is selected from the group consisting of paraffine chlorinated, decabromodiphenyl oxide, hexachloro benzene, hexabromo benzene, pentabromo ethyl benzene, pentabromo diphenyl oxide and octabromo diphenyl ether. The second fire-resistant agent used is selected from the group consisting of Sb2O3 and Sb2O5. The surface of the product produced is smooth.

Abstract: A production apparatus for spinning ring spinning filaments and staple compound slivers into compound yarns wherein the main improvement comprises altering the three-line roller draft system to a four-line roller draft system, combining multi-filaments with short staple fiber clusters and then the resultant being twisted to form compound ring yarns that are superior to the conventional ring yarns. It indeed achieves the maximum practical value and is adaptable to industry uses.

Abstract: An adjustable elastic band inspecting apparatus comprising a supporting frame attached to a bench by a C-clamp, and an inspection holder connected to the support frame by a pivoting axle that enables the height and inclination of the inspection holder to be adjusted. The inspection holder further contains adjustable brackets symmetrically disposed and adaptable for elastic bands of various sizes. The brackets can be rotated by manipulating a locating bar to facilitate the inspection of two sides of elastic bands.