CN1397671A

CN1397671A - Elastic cotton

Info

Publication number: CN1397671A
Application number: CN01108644A
Authority: CN
Inventors: 唐懿
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-16
Filing date: 2001-07-16
Publication date: 2003-02-19
Anticipated expiration: 2021-07-16
Also published as: CN1230583C

Abstract

An elastic fabric belonging to non-woven one is prepared from a curled hollow fibre and a fibre with low smelting point, and features that its fibres are distributed in 3D mode. Its advantages are high elasticity, good thermal insulation and long service life (up to 50 years).

Description

Elastic cotton

One, technical field

The invention belongs to field of nonwoven fabric technology.

Two, background technology

Existing foam is a raw material with the polyurethane, thus have toxicity, inflammable, elastic force is poor, warmth retention property is poor, easily aging, service life short shortcomings such as (only about 2 years).Existing gum sprayed cotton is a raw material with polyester (PET) fiber, its technological process is that general polyester fiber is sent into cotton feeder after bale opener, opener, shredding, be carded to lamelliform through carding machine again, be that fiber is Two dimensional Distribution, and then the filmated layer of polyester fiber that will be Two dimensional Distribution is folded into required thickness with make-up machine, spray adhesive, make layer by layer that fiber combines, oven dry forms.Because the fiber of gum sprayed cotton is Two dimensional Distribution, so its brute force is poor, poor flexibility, wear no resistance and easy aliquation.Number of patent application is that 94105072.6 " fireproof spun-bonded fabric and preparation method thereof " is also just at the surface coating one deck phosphorus series compound fire retardant or the halogen based compound fire retardant of spray glue fiber, being characterized in only molten in flame does not fire, has the fireproof function, still unresolved elasticity, brute force and warming problem.

Three, summary of the invention

The elastic cotton that the purpose of this invention is to provide a kind of alternative foam and gum sprayed cotton has the characteristics of good springiness, powerful height and good heat preservation performance, is the desirable liner cotton that is applicable to fields such as automobile decoration, mattress, seat cushion, warming shoe, warming cotton dress.

The object of the present invention is achieved like this: the hollow, crimped fiber with a kind of 50% to 70%, as hollow, crimped terylene or anti-flammability hollow, crimped fiber and a kind of low-melting fiber of 30% to 50%, as anti-flammability polypropylene fibre or PE fiber or ES fiber or antibiotic property polypropylene fibre or low-melting fiber, or infrared ray third is tieed up, and totally two kinds of fibers are mixed with raw material.Then the raw material that is mixed with through successively and grabbing cotton, opener, comb and parallel cotton fibers prior to spinning and become net, after raw material becomes net, again successively through pre-needling, acupuncture and positive acupuncture, make fiber be distributed in three dimensions, thereby the fibre density of web improves, the brute force of web increases, elasticity strengthens, warmth retention property improves, and then it is bonding through overheated baking, make the surface melting of the low-melting fiber in the web, play the effect of mutual bonding support, thereby form and three-dimensionally to support fiber reinforcement, thereby further improved elasticity and the brute force and the heat insulating ability of web, and aliquation not again.Just become a kind of novel elastic cotton through surperficial burnishing with cutting to batch at last.

Because the fiber of elastic cotton of the present invention is three-dimensional branch face, in technological process, make low-melting fiber in the web bonding mutually and form the three-dimensional fiber reinforcement that supports in addition, so elastic cotton is the elasticity of gum sprayed cotton of Two dimensional Distribution than fiber better, aliquation not again; Because elastic cotton has adopted hollow, crimped fiber such as hollow, crimped terylene etc. and low-melting fiber such as PE fiber or ES fiber etc., compare with foam again, the warmth retention property of elastic cotton significantly improves, and is its service life 50 years; If add fire resistance fibre in elastic cotton, its fire resistance is better; If in elastic cotton, add anti-bacterial fibre, has anti-microbial property again.So elastic cotton is the desirable liner cotton that is used for automobile decoration, mattress, seat cushion, warming shoe and insulation cotton collar territory.

Four, the specific embodiment

Embodiment 1 is used for substituting the seat cushions of foam and the elastic cotton of interior trim, and anti-flammability hollow, crimped fiber with 70% and 30% anti-flammability polypropylene fibre are raw material.With the raw material that is mixed with successively through grabbing cotton, opener, combing and becoming net, process pre-needling successively, acupuncture and positive acupuncture again after raw material becomes to net, after the formation fiber is the web of distributed in three dimensions, bonding through overheated baking again, heat baking temperature is 180 ℃, time is 3 minutes, batches through surperficial burnishing and cutting at last and becomes seat cushions and interior trim elastic cotton.The oxygen index (OI) of this elastic cotton reaches 27 to 29, has superior anti-flammability; The density of this elastic cotton is 140 gram/rice ², thickness can reach 4 millimeters, good springiness, and intensity can be up to 200N/5cm, reaches 50 years service life, is the desirable liner cotton of seat cushions and interior trim.

Embodiment 2 is used for substituting the warming shoe elastic cotton of foam, and antibiotic property polypropylene fibre with 30% and 70% hollow, crimped terylene are raw material.With the raw material that is mixed with successively through grabbing cotton, opener, combing and becoming net, raw material becomes behind the net more successively through pre-needling, fall after acupuncture and positive acupuncture forms fiber and be the web of distributed in three dimensions, again through the bonding and surperficial burnishing of overheated baking and cut and batch and form the warming shoe elastic cotton.This elastic cotton has that warmth retention property is good, antibacterial deodourizing and characteristics such as prolong service life greatly.Because density height, any surface finish of this elastic cotton are done the not only alternative foam of warming shoe, but also can be saved internal layer Compound Fabric or acupuncture cotton, have saved cost, be that desirable warming shoe is used cotton.

Claims

1, a kind of elastic cotton, the raw material that it is characterized in that elastic cotton are that totally two kinds of fibers are formulated with a kind of hollow, crimped fiber and a kind of low-melting fiber.

2, by the described elastic cotton of claim 1, the proportioning that it is characterized in that the hollow, crimped fiber is 50% to 70%, and the proportioning of low-melting fiber is 30% to 50%.

3, by the described elastic cotton of claim 1, it is characterized in that described hollow, crimped fiber is hollow, crimped terylene or anti-flammability hollow, crimped fiber; Described low-melting fiber is anti-flammability polypropylene fibre or PE fiber or ES fiber or antibiotic property polypropylene fibre or low melt point polyester fiber or infrared ray polypropylene fibre.

4,, it is characterized in that the raw material that to be mixed with behind needling process, making the fiber of elastic cotton be distributed in three dimensions by the described elastic cotton of claim 1.2.3.