Riegel Textile Corporation

Professional Medical Products, Inc.

Richard K Teed

Ernest A Freeman, Jr

Arther M Pressley

An improved disposable absorbent garment having opposed sides and ends to be located respectively between the legs and about the waist of a wearer, and having an inner moisture-absorbent layer with an outer water-impervious plastic sheet secured thereto. Fastener tabs attached to opposite sides of the garment adjacent the ends of the same have adhesively coated end portions for pressure attachment to the outer surface of the plastic sheet to secure the garment about the waist of the wearer. The outer surface of the plastic sheet is patterned with two sets of spaced parallel continuous raised ridges respectively extending parallel and perpendicular to the end edges of the garment to form a generally rectangular surface pattern, and the tabs are located so that their adhesively coated end portions extend generally parallel and perpendicular to the sets of ridges when attached to the outer surface of the plastic sheet, thereby enabling the tabs to be peeled from and adhesively reattached and repositioned a number of times on the garment for adjustment of the garment on the wearer without damage to the plastic outer sheet.

Disposable absorbent garment construction

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.

Process for manufacturing elastic leg disposable diapers

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. The conductive fibers are preferably in the form of at least one bundle of staple length fiber sliver rolled about a spool which is supported on a support apparatus positioned behind the back rollers of the drawing frame a distance approximately equal to, and preferably less than the average length of the metal fiber staples to insure continuous gripping of the metal fiber bundle by the back rollers of the drawing frame. An apparatus for practicing the method is also disclosed.

Method and apparatus for drawing and blending textile materials

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. Preferably, the apparatus forms a diaper of generally hour-glass configuration with elasticized side portions in which strips of elastic are attached to the longitudinal edges at least in the crotch area.

Apparatus and process for successively fabricating disposable diapers

Elastic leg disposable diaper

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. These mechanisms include devices for feeding elastic strips at a predetermined constant rate for adhesive attachment in the diaper, nipping mechanisms engaging the elastic strips and defining a predetermined distance of travel of the elastic strips therebetween, movable devices for engaging the elastic strips and for alternately moving to other positions to vary the distance of travel of the elastic strips for alternately stretching and relaxing the elastic strips and compensating mechanisms for maintaining the stretching and the relaxing, respectively, during feeding of the stretched and relaxed lengths.

Process for attaching elastic strips during the manufacture of elastic

Apparatus for attaching elastic strips during the manufacture of elastic

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. The latter step is preferably performed by circulating the waste water through a reverse osmosis filtration device, while separating the waste water into a permeate containing excess water an a substantial portion of the remaining impurities including salts and a concentrate containing substantially all of the vat dyes and a desired amount of water, and by removing the permeate and retaining the concentrate for use in the dyeing operation.

Process of treating waste water from a textile vat dyeing operation to

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. The monitoring and control apparatus includes an electrically operated machine control device, sensing devices positioned in the sequential flow of the equally spaced-apart workpieces for sensing the passage of workpieces and for sensing the absence of workpieces in such flow and an electrical circuit connected with the control devices and with the sensing devices for normally supplying electrical energy to the control devices and being responsive to the sensing devices for stopping the supply of electrical energy to the control devices when the sensing devices (1) fail to sense a workpiece in each desired equally spaced-apart position in the sequential flow or (2) fails to sense the absence of a workpiece between such desired position.

Workpiece monitoring and control apparatus for a machine having a

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. Supplying and positioning an elongate fluid-permeable top cover layer on the top of the core and an elongate fluid-impervious bottom cover layer under the core. Feeding the superimposed top cover layer, interior core and bottom cover layer along a predetermined longitudinal path of travel. Applying a plurality of short, spaced-apart, generally longitudinally-extending, adhesive strips between the top cover layer and the bottom cover layer transversely across the superimposed top cover layer and bottom cover layer at longitudinally-spaced intervals for transversely securing the top cover layer and the bottom cover layer together at longitudinally-spaced intervals to form successively interconnected diapers. Securing the top cover layer and the bottom cover layer together along longitudinal side edges of the successively interconnected diaper. Transversely severing the successively interconnected diapers generally medially of the plurality of the longitudinally-extending adhesive strips to form individual diapers.

Method and apparatus for successively forming disposable diapers

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.

Disposable diaper

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. Mechanisms are provided for continuously metering coating liquid to the pan in a predetermined amount related to the speed of travel of the web of material and the amount of liquid to be coated thereon for continuous absorption by the coating roll and continuous coating of the web with all of the predetermined amount of metered liquid.

Growing community of inventors

Greenwood, SC, United States of America

Richard K Teed