Melt-blown fiber comprising two polypropylenes which differ in their molecular weight.

Melt-blown fiber comprising two polypropylenes which differ in their molecular weight.

The present invention relates to a non-woven fabric with improved mechanical strength, and more particularly, to a non-woven fabric exhibiting excellent spinnability, excellent softness, and excellent tensile strength while enabling a weight reduction.

The present invention relates to a non-woven fabric with improved mechanical strength, and more particularly, to a non-woven fabric exhibiting excellent spinnability, excellent softness, and excellent tensile strength while enabling a weight reduction.

The present invention relates to the field of air filtration, in particular to a polytetrafluoroethylene composite filter material. The polytetrafluoroethylene composite filter material comprises a supporting layer and a polytetrafluoroethylene film layer, wherein the supporting layer is a silver-plated carbon nanomaterial-modified meltblown nonwoven fabric. The polytetrafluoroethylene composite filter material is prepared by fiberizing a resin material modified by silver-plated carbon nanomaterial on the surface of a polytetrafluoroethylene film by a melt-blowing method. The polytetrafluoroethylene composite filter material of the present invention combines filtering and sterilizing functions, has higher filtering efficiency and filtering precision, has the functions of sterilizing and killing viruses, has a good isolation effect, and greatly prolongs the service life of the filter material.

A nonwoven material formed of bicomponent fibers may be used as a cosmetic cushion to hold cosmetic compositions, such as liquid foundation, in a housing for consumer use with an applicator. The use of bicomponent fibers may allow for the utilization of various natural or synthetic materials for the core and shell which may be adjusted for greatest compatibility with cosmetic compositions. Bicomponent fibers forming nonwoven materials may be a polyethylene terephthalate (PET) core/polyethylene (PE) shell composition. This PET/PE composition may allow for maximum stability and chemical resistance in combination with aggressive chemical ingredients. Cosmetic cushions using these nonwoven materials may feel sensationally pleasing to the consumer and perform with the best quality throughout the lifetime of the product. The cosmetic cushion also may look aesthetically pleasing when filled or saturated with product.

A nonwoven material formed of bicomponent fibers may be used as a cosmetic cushion to hold cosmetic compositions, such as liquid foundation, in a housing for consumer use with an applicator. The use of bicomponent fibers may allow for the utilization of various natural or synthetic materials for the core and shell which may be adjusted for greatest compatibility with cosmetic compositions. Bicomponent fibers forming nonwoven materials may be a polyethylene terephthalate (PET) core/polyethylene (PE) shell composition. This PET/PE composition may allow for maximum stability and chemical resistance in combination with aggressive chemical ingredients. Cosmetic cushions using these nonwoven materials may feel sensationally pleasing to the consumer and perform with the best quality throughout the lifetime of the product. The cosmetic cushion also may look aesthetically pleasing when filled or saturated with product.

A fiber aggregation contains fiber containing a thermoplastic resin, each of the fiber being mutually joined and aligned.

The present invention relates to a nonwoven fabric comprising a plurality of polypropylene-containing fibers that form a nonwoven web, which fibers in addition contain a slip agent, the web has a side which is provided with an alternating pattern which consists of individualized bonded areas which bonded areas are in the form of rods which are arranged in the cross direction of the web, the alternating pattern of individualized bonded areas defines a non-bonded area, the web has a basis weight on the range of from 5-25 g/m.sup.2, the surface of the bonded areas is in the range of 5-20% of the total surface of the side, and the surface of the non-bonded area is in the range of 80-95% of the total surface of the side. The present invention further relates to a process for forming the nonwoven fabric.

The present invention relates to a nonwoven fabric comprising a plurality of polypropylene-containing fibers that form a nonwoven web, which fibers in addition contain a slip agent, the web has a side which is provided with an alternating pattern which consists of individualized bonded areas which bonded areas are in the form of rods which are arranged in the cross direction of the web, the alternating pattern of individualized bonded areas defines a non-bonded area, the web has a basis weight on the range of from 5-25 g/m.sup.2, the surface of the bonded areas is in the range of 5-20% of the total surface of the side, and the surface of the non-bonded area is in the range of 80-95% of the total surface of the side. The present invention further relates to a process for forming the nonwoven fabric.