摘要:
A filler cloth includes cellulosic fibers treated with a flame retardant chemistry such that the filler cloth has a char length of less than about nine inches when tested in accordance with NFPA 701, such that thermal shrinkage of the filler cloth at 400°F is less than about 35% in any direction, and such that the filler cloth maintains flame and heat resistant integrity when impinged with a gas flame in accordance with testing protocols set forth in Technical Bulletin 603 of the State of California Department of Consumer Affairs. The filler cloth cellulosic fibers are treated with a flame retardent chemistry such that the filler cloth has a Frazier air permeability of less than about 400 cfm and a thermal resistance rating of at least about 3 when tested according to NFPA 2112.
摘要:
Difficultly flammable high-temperature resistant polyimide fibers, a non-woven composed of this fibers, fibers and molded bodies obtained by heat treatment. After being heated to a temperature between 280 DEG C and 350 DEG C, above their glass transition temperature, these fibers develop a shrinkage force between 0.3 and 1.1 cN, and a fiber shrinkage between 20 and 60% and form cohesive bonds. These fibers can be used to make molded bodies which possess a particularly high rigidity, high temperature resistance and high non-flammability and relatively low density.
摘要:
A spunbond nonwoven fabric is provided which has superior strength characteristics to conventional fabrics yet is comparably soft. The fabric is a laminate having a web made from a high melt flow rate polyolefin polymer and a low melt flow rate polymer. The spunbond laminate fabric of this invention may have therebetween a layer of meltblown nonwoven fabric or film. The laminate produced according to this invention has a strength which is at least 10 % greater than a comparable fabric made without the high melt flow rate polymer web. The nonwoven fabric of this invention may be used in products such as, for example, garments, personal care products, medical products, protective covers and outdoor fabrics.
摘要:
The invention teaches an improved hydroentangled integrated composite nonwoven material, comprising a mixture of randomized continuous filaments, and synthetic staple fibres, where there are no thermal bonding points between the continous filaments, which nonwoven material exhibits a cumulative pore volume, measured by PVD in n-hexadecane, in the pore radius range5 - 150 µm, where at least 70% of the cumulative pore volume is in the pores with a pore radius above 45 µm. The nonwoven material also exhibits a cumulative pore volume, which when the synthetic staple fibres are chosen from the group of polyethylene, polypropylene, polyester, polyamide, and a polylactide staple fibres is at least 9 mm 3 /mg, and when the synthetic staple fibres are lyocell staple fibres is at least 6 mm 3 /mg. The hydroentangled nonwoven material comprises 20-80%, preferably 30-60%, continuous filaments, and 20-80%, preferably 40-70%, synthetic staple fibres, all percentages calculated by weight of the total nonwoven material. No natural fibres should be comprised in the nonwoven material.
摘要:
The invention relates to a ballistic resistant material having a V50 value of at least about 1000 feet per second. The ballistic resistant material includes at least two types of fibrous materials, which are blended and consolidated together, preferably by needlepunching, to create a single layer of nonwoven, composite material. The needle punching is preferably in the range of 200 to 1000 needlepunches per square inch. The fibrous materials are characterized by being deformed when subjected to the impact of a ballistic object. One of the fibers phase changes, e.g. melting, upon impact and at least one other fiber fibrillates upon impact. One of the fibers must phase change at a temperature at least 80 DEG C lower than the highest melting or destruction point fiber in the high modulus fiber blend.
摘要:
Carpet segments or other recycled materials are shredded, then layered transversely across a slow moving conveyor system, to form a wide, thick, low density belt of fibers. This fluffy belt is then compressed to generate a fibrous mat which is subsequently needle punched. A polymeric binder is then applied to the needle punched mat and the impregnated mate is compressed and the polymeric binder cured to produce a hardened wood-like product.
摘要:
There is provided a fully elastic, breathable, barrier fabric comprising a nonwoven web layer of fibers of less than 40 microns in average diameter, where the web has a hydrohead of a least 10 mbar, a Frazier Permeability of at least 100 CFM, a basis weight of less than 68 gsm and which is made from an elastic polymer. If the fabric is a laminate it may be an SMS, SBL or NBL laminate. This fabric is particularly well suited to use as a containment flap for personal care products such as diapers, incontinence products and feminine hygiene products and infection control products.