A natural fiber felt is provided, which is a film formed by processes of binding a natural fiber net with a binder, extruding, drying and shaping the natural fiber net. A surface of the film is coated with a waterproof layer. The foam binder is formed by combining modified starch serving as a binder and urea serving as a foaming agent with water. A water-repellent agent fruit wax emulsion is employed to form the waterproof layer. The natural fiber net is carded by a carding machine at one time, and the foam binder is sprayed onto the natural fiber net to bind the natural fiber net so as to form the film. The product has characteristics of ultra-thinness and high strength with good performances on heat preservation, moisturizing ability, waterproof and air permeability.

A coform nonwoven web that contains a composite matrix formed from a combination of synthetic fibers and an absorbent material is provided. A plurality of thermally expandable beads are also contained within the composite matrix. By selectively controlling various aspects of the thermal activation of the beads, as well as the particular manner in which the beads are incorporated within the nonwoven web, the present inventors have discovered that the resulting coform web can achieve an increased bulk that remains relatively stable even in a wet condition. Thus, the resulting coform web can be readily employed in a wet wipe without losing its bulk and overall texture.

A coform nonwoven web that contains a composite matrix formed from a combination of synthetic fibers and an absorbent material is provided. A plurality of thermally expandable beads are also contained within the composite matrix. By selectively controlling various aspects of the thermal activation of the beads, as well as the particular manner in which the beads are incorporated within the nonwoven web, the present inventors have discovered that the resulting coform web can achieve an increased bulk that remains relatively stable even in a wet condition. Thus, the resulting coform web can be readily employed in a wet wipe without losing its bulk and overall texture.

The present invention is directed to tamper-evident mesh material, methods of manufacture therefor, and tamper-evident bags manufactured therefrom. The tamper-evident mesh material of the present invention may be used, for example, in the manufacture of a variety of tamper-evident security bags for use in applications where it is desirable to detect any traces or evidence of tampering with or of unauthorized access to the contents of the bag.

A mesh nonwoven fabric which is seamless and excellent in appearance is provided. A seamless mesh nonwoven fabric is prepared by laminating a first mesh film 20 containing stem fibers 20a stretching parallel to each other in a first direction and branch fibers 20b connecting adjacent stem fibers 20a together, and a second mesh film 30 containing stem fibers 30a stretching parallel to each other in a second direction intersecting the first direction and branch fibers 30b connecting adjacent stem fibers 30a.

A mesh nonwoven fabric which is seamless and excellent in appearance is provided. A seamless mesh nonwoven fabric is prepared by laminating a first mesh film 20 containing stem fibers 20a stretching parallel to each other in a first direction and branch fibers 20b connecting adjacent stem fibers 20a together, and a second mesh film 30 containing stem fibers 30a stretching parallel to each other in a second direction intersecting the first direction and branch fibers 30b connecting adjacent stem fibers 30a.

A machine for non-woven fabric formation containing a rotating center shaft, at least a first and second pair of laterally spaced, interchangeable helical yarn guides, a yarn feeding wheel assembly, a fabric take up. The machine is capable of forming both square and tri-axial scrims with changes to the interchangeable helical yarn guides and yarn feeding wheel assembly.

Provided is a thermal molding method for producing a thermally molded article having excellent abrasion resistance at its melt-fused part. Polyamide 6 and a copolyester are prepared separately. The copolyester contains terephthalic acid, ethylene glycol, and 1,4-butanediol as copolymerization units. The copolyester may further contain ε-caprolactone and/or diethylene glycol as a copolymerization unit. A multifilament yarn in which core-sheath type composite filaments each containing a core component and a sheath component at a ratio of 1 to 4:1 by mass are bundled is produced by a composite melt-spinning method using the polyamide 6 as the core component and the copolyester as the sheath component. Using the multifilament yarn, a product of filaments is produced by weaving, knitting, knitting and braiding, or braiding. The product of filaments is heated to melt the copolyester and fuse the core-sheath type composite filaments to each other while retaining the initial filament form of the polyamide 6, thus thermally molding the product of filaments.

Provided is a thermal molding method for producing a thermally molded article having excellent abrasion resistance at its melt-fused part. Polyamide 6 and a copolyester are prepared separately. The copolyester contains terephthalic acid, ethylene glycol, and 1,4-butanediol as copolymerization units. The copolyester may further contain ε-caprolactone and/or diethylene glycol as a copolymerization unit. A multifilament yarn in which core-sheath type composite filaments each containing a core component and a sheath component at a ratio of 1 to 4:1 by mass are bundled is produced by a composite melt-spinning method using the polyamide 6 as the core component and the copolyester as the sheath component. Using the multifilament yarn, a product of filaments is produced by weaving, knitting, knitting and braiding, or braiding. The product of filaments is heated to melt the copolyester and fuse the core-sheath type composite filaments to each other while retaining the initial filament form of the polyamide 6, thus thermally molding the product of filaments.

A three-dimensional net-like structure is provided that has a soft cushioning property and less variations of hardness and is less expensive. The three-dimensional net-like structure is made from a thermoplastic resin including a mixture of a polypropylene copolymer (a) and a polypropylene copolymer (b) and has a spring structure formed by bonding continuous filaments partly in random in loops. The polypropylene copolymer (a) has a flexural modulus that is different from a flexural modulus of the polypropylene copolymer (b).