Abstract: An improved elastic leg disposable diaper and process for manufacturing same; wherein the diaper includes elastic strips extending and being secured to the diaper continuously along the full length of the outside longitudinal edges of the diaper and wherein the elastic strips are secured in the crotch area in stretched elastically-contractible condition forming gathered and extendible side portions in the crotch area for elastic compliance of such side portions to the legs of the wearer.

Abstract: A method is disclosed for drawing and blending textile fiber and conductive metal filaments. The method is characterized by feeding at least one bundle of a first textile material through draw rollers of a drawing frame, unwinding at least one roll of a bundle of second material in the form of conductive fibers adjacent the first pair of rollers of the drawing frame, feeding the conductive fiber bundle into the back rollers of the drawing frame simultaneously with the textile material fiber bundle, and guiding the textile material fiber bundle and the conductive fiber bundle relative to each other such that the latter continuously cushions the textile material fiber bundle with respect to the draw rollers when passing therethrough.

Abstract: Apparatus and process for successively fabricating disposable diapers including devices for and the steps of, generally as follows. The components of the diapers are moved in a generally longitudinal path of travel through the apparatus during fabrication of the diapers. Multi-layer interior absorbent pads are produced by fiberizing a first wet-pressed cellulosic fiber sheet and air-laying the fiberized fibers into a bottom layer and fiberizing a second wet-pressed cellulosic fiber sheet and air-laying the fiberized fibers into a top layer in superimposed relation on the bottom layer as the pads are being moved in their longitudinal path of travel. A top cover sheet and a bottom cover sheet are positioned on either side of the multi-layer pad and are secured to each other along longitudinal and transverse edges to form interconnected diapers which are subsequently severed to complete fabrication of the diapers.

Abstract: An improved elastic leg disposable diaper and process for manufacturing same; wherein the diaper includes elastic strips extending and being secured to the diaper continuously along the full length of the outside longitudinal edges of the diaper and wherein the elastic strips are secured in the crotch area in stretched elastically-contractible condition forming gathered and extendible side portions in the crotch area for elastic compliance of such side portions to the legs of the wearer.

Abstract: An apparatus and process for attaching elastic strips in elastic leg disposable diapers having gathered and extendible side portions in the crotch area during manufacture of such diapers in an assembly machine including mechanisms for alternately stretching and relaxing predetermined lengths of the elastic strips for adhesive attachment of the stretched lengths to the crotch area and the more relaxed lengths to the outer waist areas continuously along the edges of the diaper.

Abstract: This invention relates to a durable press treatment for textile fabrics containing cellulosic fibers and which is characterized by avoiding the use of formaldehyde and problems associated therewith. The fabric is impregnated with a formaldehyde-free finishing agent containing glyoxal, reactive silicone, a catalyst and a buffering agent for reducing the acidity of the fabric. The fabric is thereafter dried and the finishing agent is cured to impart durable press properties to the fabric.

Abstract: This invention relates to a durable press treatment for textile fabrics containing cellulosic fibers and which is characterized by avoiding the use of formaldehyde and problems associated therewith. The fabric is impregnated with a formaldehyde-free finishing agent containing glyoxal, reactive silicone and a catalyst. The fabric is thereafter dried and the finishing agent is cured to impart durable press properties to the fabric.

Abstract: An apparatus and process for attaching elastic strips in elastic leg disposable diapers having gathered and extendible side portions in the crotch area during manufacture of such diapers in an assembly machine including mechanisms for alternately stretching and relaxing predetermined lengths of the elastic strips for adhesive attachment of the stretched lengths to the crotch area and the more relaxed lengths to the outer waist areas continuously along the edges of the diaper.

Abstract: Process of forming and resultant multi-layer absorbent pad for use in disposable absorbent articles, such as diapers and the like, to absorb body fluids and being characterized by providing superior fluid transfer from a top uncompressed receiving layer to a bottom compressed layer and wicking and spreading action of the body fluids within the bottom layer to provide a drier top surface to the absorbent pad. The top layer is formed of fiberized cellulosic fibers including a cationic debonding agent provided therein prior to fiberization for obtaining more complete fiberization of the fibers and greater height and loft to the layer while producing resistance to normally-occurring hydrogen bonds between the fibers in the layer to resist compression of the layer and maintain the height and loft of the absorbent pad.

Abstract: Apparatus for inserting elastic strips into elastic leg diapers in accordance with the improved elastic leg disposable diaper and process for manufacturing same disclosed in co-pending U.S. patent application Ser. No. 85,372, filed concurrently herewith, and assigned to the assignee of the present invention, wherein elastic strips are adhesively secured continuously along the longitudinal edges of the disposable diaper and are alternately secured in stretched condition along the crotch area and in relaxed condition along the outer waist areas to form gathered and extendible side portions in the crotch area for elastic compliance to the legs of the wearer including mechanisms for alternately stretching and relaxing predetermined lengths of the continuous elastic strips.

Abstract: Process of treating waste water from a textile vat dyeing operation containing water, vat dyes, and dissolved and undissolved impurities including salts, lint, foreign matter, etc. to produce a concentrate suitable for direct reuse in the vat dyeing operation to conserve the use of dyes and water, as follows. Undissolved impurities of a predetermined particle size are filtered out. Thereafter, the waste water is concentrated and filtered down to a concentrate of a ratio of from about 30/1 to 200/1 while removing excess water and a substantial portion of the remaining impurities and retaining substantially all of the vat dyes and a desired amount of water.

Abstract: Workpiece monitoring and control apparatus for a machine having a desired predetermined sequential flow of equally spaced-apart workpieces therein and being characterized by continually monitoring both the presence and absence of workpieces in such flow and operating control mechanisms for such machine, such as stopping operation of the machine or actuating a signalling device, in the event of an undesired absence or presence of a workpiece.

Abstract: Apparatus for compressing and banding a predetermined number of generally flat, compressible articles, such as disposable diapers, includes the following. Devices are positioned at one end of the apparatus for successively receiving the articles and for positioning the articles in a longitudinally extending row. Devices are provided for moving a group of a predetermined number of the articles from the receiving and positioning devices in a generally longitudinal path of travel to the other end of the apparatus and for compressing the articles at the other end of the apparatus. Devices position banding material across the path of travel of the group of articles for allowing the banding material to position itself around the leading end and sides of the group of articles as the group is moved to the other end of the apparatus. Devices then move the banding material around the trailing end of the group of compressed articles.

Abstract: An apparatus and method for successively forming disposable diapers wherein the diaper includes a fluidpermeable top cover layer, a moisture-absorbent core under the top cover layer and including a pad of fibrous material and sheets of cellulosic material on each side of the pad, and a fluid-impervious bottom cover layer under the interior core and secured to the top cover layer along longitudinal and transverse edges thereon. The apparatus and method include mechanisms for and steps of, as follows. Supplying and positioning an elongate moisture-absorbent core including a pad of fibrous material of less width than the width of the core and sheets of cellulosic material on each side of the pad. Embossing and securing the sheets of cellulosic material together along longitudinally-extending areas on each side of the pad for forming an envelope of the sheets of cellulosic sheets around the pad.

Abstract: Apparatus for the manufacture of disposable diapers having spaced apart fastener tabs, labels or strips at predetermined locations thereon including a device for continuously moving material being manufactured into such articles through said apparatus and for applying such fastener tabs, labels or strips at predetermined locations to the moving material and having the following devices in combination therewith. Electrically operated drive devices are provided for driving the tab applying devices and the material moving devices. Sensing devices sense the passage of applied tabs on the moving material. An electric circuit is connected with the sensing devices and with the drive devices for normally operating the drive devices and is responsive to the sensing devices for stopping operating of the drive devices when the sensing devices fail to sense the passage of a tab at a predetermined location on the moving material as it passes the sensing devices.

Abstract: The improvements, in a disposable diaper including a fluid permeable top sheet and a fluid impermeable bottom sheet bound and secured together along their transverse and longitudinal edges and having a fluid absorbent pad disposed between the top and bottom sheets and including several layers of cellulose wadding and a layer of fiberized pulp disposed between the cellulose wadding layers, as follows. The top and bottom sheets are bound together along their transverse edges by means of short, spaced, glue lines extending transversely to and spaced along the transverse edges of the disposable diaper for providing soft, flexible, transverse edges to the diaper for comfort when placed in position on the wearer. Longitudinally-extending, thin, narrow, embossed lines in the wadding layers hold the several layers together and effectively enclose the fiberized pulp layer between the cellulosic wadding layers to prevent dislocation of the fiberized pulp layer during use of the diaper.

Abstract: Method and apparatus for evenly coating a moving web of material with a predetermined amount of a liquid and characterized by simplicity of design, uniformity of application of the liquid and accurate control of the amount of the liquid applied, as follows. Mechanisms are provided for supplying and feeding a web of material in a longitudinal path of travel at a predetermined speed. A coating roll is positioned for transverse rotating contact with one surface of the traveling web of material and includes a covering of soft, uniformly and highly absorbent material for receiving and uniformly absorbing the coating liquid and for transferring and uniformly coating the traveling web with the liquid. An open top pan is provided for continuously receiving the coating liquid therein. The coating roll rotates within the pan for contacting and continuously absorbing all of the coating liquid within the pan above the level of the coating roll.

Abstract: A debonded cellulose fiber pulp sheet that is adapted to be fiberized by mechanical action to form a fluffy material and is impregnated with small amounts, such as 1% or less, of a long chain fatty alkyl cationic compound having at least 12 carbon atoms in at least one alkyl chain and a similar small or somewhat larger amount of an oily material such as a mineral, vegetable or animal oil which coacts with the cationic compound to render the pulp sheet easily mechanically fiberizable, and the resulting fiberized fluffy material softer, more lofty and more absorbent and method for producing said sheet.