A cable wrapping tape, in particular for the engine compartment of an automobile, has a strip-like carrier consisting of fabric, said carrier is provided at least on one side with a self-adhering adhesive layer which consists of a pressure-sensitive adhesive, wherein the fabric of the carrier consists of a yarn which is formed from a polyamide material and which has a yarn strength of at least 280 dtex. The yarn is formed from 24 to 80 filaments, and the cable wrapping tape meets abrasion class E according to LV 312 both on a mandrel having a 5 mm diameter and on a mandrel having a 10 mm diameter. For increasing the abrasion resistance, it is proposed that the filaments are twisted with one another about a central longitudinal axis (X-X) of the yarn.

A technical problem to be solved by the present invention is to provide a non-coated fabric for airbags and a coated fabric for airbags that are both less likely to have yarn slippage after being sewn, and that can be compactly stored; and airbags using these fabrics. The fabric for airbags according to the present invention is a non-coated fabric for airbags or a coated fabric for airbags that both have a crimp ratio of 12% or more in the weft direction, and a crimp ratio of 61 or less in the warp direction.

The present disclosure relates to a cable wrapping tape, including a band-shaped support (1) made of a textile fabric with warp threads (2) and weft threads (3) made of a PET plastic. The warp and weft threads (2, 3) are made of filament yarns, the size of the weft threads (3) being larger than the size of the warp threads (2). An adhesive coating is applied to the support (1). The size of the warp threads (2) is larger than/equal to 20 dtex and smaller than/equal to 40 dtex.

A sheet is produced by (i) producing a sheet by entangling woven or knitted material including a thread composed of a composite fiber such that two kinds or more of polyethylene terephthalate polymers different in intrinsic viscosity are stuck together in a side-by-side type along the fiber length direction and/or of a core-in-sheath type composite fiber such that two kinds or more of polyethylene terephthalate polymers different in intrinsic viscosity form an eccentric core-in-sheath structure, with a fiber capable of converting into ultra fine fibers composed of two kinds or more of polymeric substances different in solubility in solvent, (ii) developing an ultra fine fiber with an average single fiber fineness of 0.001 dtex or more and 0.5 dtex or less by treating the sheet with a solvent to thereafter provide elastomer having polyurethane as a main component by impregnating and solidifying solvent solution of elastomer having polyurethane as a main component into the sheet, or of providing elastomer having polyurethane as a main component by impregnating and solidifying solvent solution of elastomer having polyurethane as a main component into the sheet to thereafter develop an ultra fine fiber with an average single fiber fineness of 0.001 dtex or more and 0.5 dtex or less by treating the sheet with a solvent, and (iii) rubbing and shrinking the woven or knitted material under the condition of 110 C. or more.

A sheet is produced by (i) producing a sheet by entangling woven or knitted material including a thread composed of a composite fiber such that two kinds or more of polyethylene terephthalate polymers different in intrinsic viscosity are stuck together in a side-by-side type along the fiber length direction and/or of a core-in-sheath type composite fiber such that two kinds or more of polyethylene terephthalate polymers different in intrinsic viscosity form an eccentric core-in-sheath structure, with a fiber capable of converting into ultra fine fibers composed of two kinds or more of polymeric substances different in solubility in solvent, (ii) developing an ultra fine fiber with an average single fiber fineness of 0.001 dtex or more and 0.5 dtex or less by treating the sheet with a solvent to thereafter provide elastomer having polyurethane as a main component by impregnating and solidifying solvent solution of elastomer having polyurethane as a main component into the sheet, or of providing elastomer having polyurethane as a main component by impregnating and solidifying solvent solution of elastomer having polyurethane as a main component into the sheet to thereafter develop an ultra fine fiber with an average single fiber fineness of 0.001 dtex or more and 0.5 dtex or less by treating the sheet with a solvent, and (iii) rubbing and shrinking the woven or knitted material under the condition of 110 C. or more.

A method of making a fluorinated fibrous web, which method includes providing a nonwoven web 22 that contains polymeric fibers, creating a plasma that contains fluorine atoms at a first location 14, and contacting the nonwoven web with products from the plasma at a second location 26 remote from the first location 14. The method avoids exposure of the web to the plasma and hence expands the manufacturing processing window. Webs so fluorinated have a different C.sub.3F.sub.4H.sup.+ to C.sub.2F.sub.5.sup.+ ratio when compared to locally fluorinated webs having similar levels of surface fluorination. The remote fluorinated webs can be subsequently charged electrically to provide a good performing electret filter 40 suitable for use in an air purifying respirator 30. Webs fluorinated in accordance with this invention also may exhibit good performance even after being aged at high temperatures.

A composite structure is provided that includes a polymer layer and an auxetic material layer disposed within or partially within the polymer layer. The auxetic material layer provides increased conductivity and elastomeric reinforcement to the polymer layer.

A cable wrapping tape, in particular for the engine compartment of an automobile, has a strip-like carrier consisting of fabric, said carrier is provided at least on one side with a self-adhering adhesive layer which consists of a pressure-sensitive adhesive, wherein the fabric of the carrier consists of a yarn which is formed from a polyamide material and which has a yarn strength of at least 280 dtex. The yarn is formed from 24 to 80 filaments, and the cable wrapping tape meets abrasion class E according to LV 312 both on a mandrel having a 5 mm diameter and on a mandrel having a 10 mm diameter. For increasing the abrasion resistance, it is proposed that the filaments are twisted with one another about a central longitudinal axis (X-X) of the yarn.

A method of making a fluorinated fibrous web, which method includes providing a nonwoven web 22 that contains polymeric fibers, creating a plasma that contains fluorine atoms at a first location 14, and contacting the nonwoven web with products from the plasma at a second location 26 remote from the first location 14. The method avoids exposure of the web to the plasma and hence expands the manufacturing processing window. Webs so fluorinated have a different C.sub.3F.sub.4H.sup.+ to C.sub.2F.sub.5.sup.+ ratio when compared to locally fluorinated webs having similar levels of surface fluorination. The remote fluorinated webs can be subsequently charged electrically to provide a good performing electret filter 40 suitable for use in an air purifying respirator 30. Webs fluorinated in accordance with this invention also may exhibit good performance even after being aged at high temperatures.

Processes for preparing ultra-high molecular weight polyethylene (UHMW PE) filaments and multi-filament yarns, and the yarns and articles produced therefrom. Each process produces UHMW PE yarns having tenacities of 45 g/denier to 60 g/denier or more at commercially viable throughput rates.