Abstract: The present invention provides a process for modifying the surface of a polyvinyl alcohol film or fabric by applying heat and pressure to the film or fabric to increase the moisture on the surface which is held by the fabric and to coalesce the surface fibers and reduce the porosity of the surface.

Abstract: The present invention provides a process for modifying the surface of a polyvinyl alcohol film or fabric by applying heat and pressure to the film or fabric to increase the moisture on the surface which is held by the fabric and to coalesce the surface fibers and reduce the porosity of the surface.

Abstract: The present invention relates to novel polyvinyl alcohol non-woven films and fabrics which have been modified so as to have a breathable coalesced lower porosity surface polyvinyl alcohol layer attached to a fibrous polyvinyl alcohol layer by a transition layer. The fabrics are useful as clothing or wraps for inert articles.

Abstract: A process for producing a polyvinyl alcohol film or fabric having a modified non-porous surface which can be used to form disposable protective clothing, wraps, and articles similar to TYVEK® by impinging steam on at least one surface.

Abstract: A breathable protective garment or laminate for protection against chemical and/or biologic agents which contains one or more scrim layers which contain anti-microbial and/or anti toxic chemical agents. The garment or laminate is also self-decontaminating.

Abstract: A fabric for chemical protective garments having at least two multilayered film laminates separated by a scrim forming a barrier chamber. The laminates are sandwiched between films of linear low density polyethylene and contain a different film from each other selected from ethyl vinyl alcohol, polyethylene terephthalate and polyamide. There is also the garment prepared with the fabric.

Abstract: A protective garment having gloves at the bottom of sleeve portions which can be quickly attached and detached. The gloves contain an attachment ring which sealingly mates with a respective attachment ring on the sleeve portions by a bayonet attachment. There is also provided a kit for retrofitting existing gloves and protective garments. An outer glove is attachable over an inner glove which can be changed by alternate pair of gloves.

Abstract: A protective garment consisting of boots and pants which can be quickly attached and detached. The boots contain an attachment ring which sealingly mates with a respective attachment ring on the pant leg by a bayonet attachment. There is also provided a kit for retrofitting existing boots and protective garments.

Abstract: There is provided a method for preventing deknitting of knitted tubular articles or garments such as gloves, socks, and the like. Accordingly, the edge of the tubular article or garment is provided with a plurality of horizontally knit rows of thread or yarn which are stretchable or elastic, and a vertical stretchable or elastic yarn or thread is knitted over and around 2 to 12 rows of the horizontal knit rows with gradually increasing tension so as to cause the edge to curl or roll over as a result of the vertical knit.

Abstract: A protective garment is provided from a pattern which reduces waste and provides sleeves which are attached to an upper body, portion of the garment at an angle of 45-70 degrees.

Abstract: A heat sealable, adhesive-free material for plastic fabrics and clothing comprising the combination of a fabric scrim and a heat sealable coextruded film lamination which provides a barrier against solids, liquid and gases. The coextruded lamination comprises a film composition with an outer and inner layer of linear low density polyethylene and an intermediate layer of a polyamide polymer.

Abstract: There is provided an improvement in a process and apparatus for preparing panels used in the manufacture of protective garments with compression platens. The platens are provided with at least one heating element which is tensioned by spring means and forms a pattern for a panel. Two panels may be formed simultaneously each having seamed leg and arm portions and are to be joined by heat sealing along the back.

Abstract: A heat sealable, adhesive-free seam and closure fabrics and clothing comprising the combination of a fabric scrim and a heat sealable water and vapor resistant coextruded laminations which provides a barrier against liquid substances and vapors. The coextrusion laminations are in abutment or overlap and comprise a film layer with an outer and inner layer of low density polyethylene and an intermediate layer of a copolymer of ethylene and vinyl alcohol. The laminations are fusion bonded to a portion of the scrim in a manner whereby the polyethylene flows from said lamination, encapsulates the ends of the intermediate layer of the laminate and forms weld points with the said scrim to prevent penetration by liquid substances and vapors.

Abstract: An improvement in ventilating protective garments used against chemical agents. There is provided an arrangement of the air supply and the air exhaust so that the air cools the occupant and sweeps across the visor of a headpiece to prevent fogging. A regulator is used to maintain a degree of inflation in the garment by the incoming air.

Abstract: A fire and chemical resistant fabric having anti-static properties which comprises at least one laminate formed by coextruding a pair of polymeric sheets with an intermediate layer of a polar resin or hydrophilic polymer which is adhered to a fabric scrim comprising a blend of polyester and cellulosic fibers, the fabric scrim containing an effective amount of an anti-static and fire resistant agent.

Abstract: There is provided an improvement in a process and apparatus for preparing panels used in the manufacture of protective garments with compression platens. The platens are provided with at least one heating element which is tensioned by spring means and forms a pattern for a panel. Two panels may be formed simultaneously each having seamed leg and arm portions and are to be joined by heat sealing along the back.