D04H1/4291

Absorbent articles and methods of making

An absorbent article comprising an absorbent core sandwiched between a liquid permeable topsheet and a liquid impermeable backsheet, and an acquisition distribution layer positioned between said topsheet and said absorbent core, wherein the absorbent core comprises absorbent material selected from the group consisting of cellulose fibers, superabsorbent polymers and combinations thereof, wherein said absorbent core comprises at least one core wrap substrate enclosing said absorbent material, and wherein a top layer of said core wrap is adhered to a bottom layer of said core wrap to form one or more channels substantially free of said absorbent material, wherein said channels have a length extending along a longitudinal axis and the absorbent core has a length extending along said longitudinal axis and wherein the length of said channels is from 10% to 95% of the length of said absorbent core and wherein said channels each follow a substantially continuous path such as from a first end of a channel to a second end of the same channel wherein the acquisition distribution layer comprises a spunbond and/or carded nonwoven layer comprising synthetic fibers, wherein said synthetic fibers are comprised at a level of greater than 80% wt by weight of said acquisition distribution layer, and wherein said acquisition distribution layer has a basis weight of from 10 to 50 g/m.sup.2.

Absorbent articles and methods of making

An absorbent article comprising an absorbent core sandwiched between a liquid permeable topsheet and a liquid impermeable backsheet, and an acquisition distribution layer positioned between said topsheet and said absorbent core, wherein the absorbent core comprises absorbent material selected from the group consisting of cellulose fibers, superabsorbent polymers and combinations thereof, wherein said absorbent core comprises at least one core wrap substrate enclosing said absorbent material, and wherein a top layer of said core wrap is adhered to a bottom layer of said core wrap to form one or more channels substantially free of said absorbent material, wherein said channels have a length extending along a longitudinal axis and the absorbent core has a length extending along said longitudinal axis and wherein the length of said channels is from 10% to 95% of the length of said absorbent core and wherein said channels each follow a substantially continuous path such as from a first end of a channel to a second end of the same channel wherein the acquisition distribution layer comprises a spunbond and/or carded nonwoven layer comprising synthetic fibers, wherein said synthetic fibers are comprised at a level of greater than 80% wt by weight of said acquisition distribution layer, and wherein said acquisition distribution layer has a basis weight of from 10 to 50 g/m.sup.2.

Nonwoven fabric and process for the production thereof

The present invention relates to a process for the production of a nonwoven fabric. In particular, the present invention relates to the production of a nonwoven fabric having desirable tactile and haptic properties, as well as to the nonwoven fabric itself. The process requires the selection of specific materials and process conditions. The fabric is produced from a masterbatch of isotactic polypropylene homopolymer and a surface-treated calcium carbonate filler.

Nonwoven fabric and process for the production thereof

The present invention relates to a process for the production of a nonwoven fabric. In particular, the present invention relates to the production of a nonwoven fabric having desirable tactile and haptic properties, as well as to the nonwoven fabric itself. The process requires the selection of specific materials and process conditions. The fabric is produced from a masterbatch of isotactic polypropylene homopolymer and a surface-treated calcium carbonate filler.

PREPARATION METHOD OF SM NON-WOVEN FABRICS FOR ROOF ANTI-SLIP

The present application discloses a preparation method of SM non-woven fabrics for roof anti-slip, which belongs to the technical field of roofing materials, comprising preparing spunbond non-woven fabric raw materials, preparing spunbond non-woven fabrics, preparing meltblown non-woven fabric raw materials, preparing primary SM non-woven fabrics, and post-processing; the spunbond non-woven fabric raw materials are prepared by uniformly mixing polypropylene with a low melt flow index, polypropylene with a high melt flow index, sodium alginate, antioxidant 1010, zinc stearate, ultraviolet absorber UV-531, polyvinyl alcohol, reinforcing agent, adhesive agent, and nano titanium dioxide. The present application can avoid the problem that the SM non-woven fabrics cannot be fully bonded together and are easy to delaminate when being combined, can also solve the problem of fabric breakage during high-speed production, and can also improve the wear resistance, strength, and stiffness of SM non-woven fabrics. The prepared SM non-woven fabrics have low production costs, are easy to recycle, and have good environmental performances.

PREPARATION METHOD OF SM NON-WOVEN FABRICS FOR ROOF ANTI-SLIP

The present application discloses a preparation method of SM non-woven fabrics for roof anti-slip, which belongs to the technical field of roofing materials, comprising preparing spunbond non-woven fabric raw materials, preparing spunbond non-woven fabrics, preparing meltblown non-woven fabric raw materials, preparing primary SM non-woven fabrics, and post-processing; the spunbond non-woven fabric raw materials are prepared by uniformly mixing polypropylene with a low melt flow index, polypropylene with a high melt flow index, sodium alginate, antioxidant 1010, zinc stearate, ultraviolet absorber UV-531, polyvinyl alcohol, reinforcing agent, adhesive agent, and nano titanium dioxide. The present application can avoid the problem that the SM non-woven fabrics cannot be fully bonded together and are easy to delaminate when being combined, can also solve the problem of fabric breakage during high-speed production, and can also improve the wear resistance, strength, and stiffness of SM non-woven fabrics. The prepared SM non-woven fabrics have low production costs, are easy to recycle, and have good environmental performances.

COMPOSITE OF HIGH-STRENGTH FIBERGLASS MESH AND POLYPROPYLENE NON-WOVEN FABRIC AND PREPARATION METHOD THEREFOR
20240263373 · 2024-08-08 · ·

Disclosed is a polypropylene non-woven fabric made of a composite of high-strength fiberglass mesh and polypropylene non-woven fabric where the polypropylene non-woven fabric is ?2 layers, and between each two layers of polypropylene non-woven fabric is a layer of high-strength fiberglass mesh. The high-strength fiberglass mesh is interwoven with monofilaments including one or more of polyethylene, polypropylene and polyethylene terephthalate. A method for preparing the composite of high-strength fiberglass mesh and polypropylene non-woven fabric is also disclosed. The composite of high-strength fiberglass mesh and polypropylene non-woven fabric is lighter than similar products of conventional spunbonded non-woven fabrics with a weight of 40 gsm to 110 gsm that is 40% to 80% of the weight of similar products, with a breaking strength 2 times or more of the same products and consistent in the longitudinal direction and the transverse direction.

COMPOSITE OF HIGH-STRENGTH FIBERGLASS MESH AND POLYPROPYLENE NON-WOVEN FABRIC AND PREPARATION METHOD THEREFOR
20240263373 · 2024-08-08 · ·

Disclosed is a polypropylene non-woven fabric made of a composite of high-strength fiberglass mesh and polypropylene non-woven fabric where the polypropylene non-woven fabric is ?2 layers, and between each two layers of polypropylene non-woven fabric is a layer of high-strength fiberglass mesh. The high-strength fiberglass mesh is interwoven with monofilaments including one or more of polyethylene, polypropylene and polyethylene terephthalate. A method for preparing the composite of high-strength fiberglass mesh and polypropylene non-woven fabric is also disclosed. The composite of high-strength fiberglass mesh and polypropylene non-woven fabric is lighter than similar products of conventional spunbonded non-woven fabrics with a weight of 40 gsm to 110 gsm that is 40% to 80% of the weight of similar products, with a breaking strength 2 times or more of the same products and consistent in the longitudinal direction and the transverse direction.

Extensible nonwoven fabric

Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component.

Extensible nonwoven fabric

Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component.