CN203821053U - Dispelling full-degraded spunlaced non-woven fabric - Google Patents

Abstract

The utility model relates to a dispelling full-degraded spunlaced non-woven fabric capable of being quickly dispelled and fully degraded. 35% to 50% of sawtooth-shaped flat viscose fibers and 65% to 50% of wood pulp are winded together to form the fabric, wherein a bar-shaped incision is formed in the surfaces of side surfaces of the sawtooth-shaped flat viscose fibers. The dispelling full-degraded spunlaced non-woven fabric is advantaged by great dispelling property and full degradation of the non-woven fabric after dispelling; secondary environmental pollution is avoided; and due to pretreatment of raw material, material features are greatly released, so great forming strength of the non-woven fabrics in dry and wet states can be achieved.

Description

Can break up degradable spunlace non-woven cloth

Technical field

The utility model relates to a kind of nonwoven fabric and can break up fast, the broken up degradable spunlace non-woven cloth that can all degrade again, and genus can break up degraded nonwoven fabric and manufacture field.

Background technology

US2013004552A1, title " non-woven fabric material of water dispersible ", this application provides the non-woven material of multilayer, comprises that two exterior layers have made the continuous filament yarn of the water-soluble or aqueous dispersed polymer of inner water accepting layer.The water content that the continuous filament yarn of described non-woven fabric material forms is less than about 10%(weight), it is characterized in that, the dry matter that also comprises the group that is selected from following composition: family expenses or personal-care supplies, the microcapsules of the therapeutic medical material being the theme and/or one or more such materials of slowly-releasing, it is characterized in that, described water-absorbing material comprises cellulosic pulp fibers, it is characterized in that, described non-woven fabric material dipping has hydrophobic material, and it is the derivative of the aliphatic acid in the solution of non-aqueous organic solvent.It comprises the upper strata of nonwoven fabric material of the cellulosic pulp fibers of an interior layer, the polymer of described water-soluble or water dispersible and the continuous filament yarn of a lower level, the polymer of a kind of water-soluble or water dispersible of described continuous filament yarn.The length variations of described cellulosic pulp fibers is less than approximately 2.5 millimeters from one.The group that is selected from following composition of the nonwoven fabric material of described water-soluble or aqueous dispersion polymers: polyvinyl alcohol (PVA), carboxymethyl cellulose, guar gum, alginates, starch, water dispersible copolyesters and their mixture.

The nonwoven fabric material of the diameter of described continuous filament yarn between 0.5 dtex and 6.7 dtexs.

It is for the manufacture of non-woven fabric material, and it comprises the following steps: a) by the water-soluble of ground floor or spun-bonded continuous yarn that aqueous dispersion polymers is made; B) the placing, the layer of step a) is upper, and one deck water absorbs fiber, c) by another layer of described spun-bonded continuous yarn; D) individual layer of bonding and/or multilayer material are under drying regime, one or more bonding processs are provided, it is characterized in that, in described one or more bonding step, carry out a kind of like this mode, the water content of the non-woven fabric material so obtaining is less than about 10%weight.e) step d) of the nonwoven fabric material of dipping is selected from the group of following composition: household articles, use in personal care dry matter part, the medical application that dry matter is the theme, and the slow-release microcapsule of its one or more such materials; F) nonwoven fabric material flooding in the solution of the non-aqueous organic solvent of the derivative of aliphatic acid.It comprises the one or more bonding processs before the merging of one or more steps or the individual layer preconsolidation of continuous filament yarn and/or multilayer material.The non-woven fabric material that the production line of described spun-bonded continuous yarn is described with formation, or in the process of an independent production line, described individual layer and/or multi-layer nonwoven textile material, merge or preconsolidation is by stratified material is passed through to two roll-in real machines, cotton ginning.The single layer of described bonding and/or the multilayer material of step comprise the method for dry-laying technique.The single layer of described bonding and/or the multilayer material of step comprise the method for chemical bonding process.The individual layer of described bonding and/or the step of multilayer material comprise the method for an acupuncture course.Comprise the individual layer that adds in one or more steps and/or past nonwoven fabric material, described one or more bonding process, be selected from that one or more materials in lower group form: household articles personal-care supplies, the medical preparation of theme, superabsorbent fibers, super absorbent polymer powder and extra material.

Its weak point: the one, multi-layer nonwoven fabrics, breaking up property is bad; The 2nd, material forms, and cannot realize degradable, causes the secondary pollution to environment; The 3rd, because raw material do not pass through preliminary treatment, the feature of its material itself can not get discharging, a little less than making the brute force of the nonwoven fabric formed thereby under necessary dry, hygrometric state.

Utility model content

Purpose of design: avoid the weak point in background technology, design and a kind ofly can break up fast nonwoven fabric, can make again all broken up degradable spunlace non-woven cloths of degraded of broken up nonwoven fabric.

Design: in order to realize above-mentioned purpose of design.1, the flat viscose of zigzag carries out pretreated design, is one of technical characterictic of the present utility model.The object of doing is like this: the technical indicator that will reach due to the application's broken up degradable spunlace non-woven cloth is: the rolling test of broken off by water flush-----sealed tubular is dispersed into for 50 times completely fibrous, heavy 70GSM, more than the wet above CD:200G/IN. of strong MD:400G/IN., should realize the ability of broken off by water flush, possess again necessary doing, brute force under hygrometric state, the technical indicator that can guarantee two contradictions in raw-material processing can be realized together, the application is by the flat 5-20MM viscose of zigzag for this reason, be laid in spout, by conveying mechanism feeding, get rid of the machine of cutting, by getting rid of the high speed shear effect of flail knife in the machine of cutting, at fiber surface or side, get rid of many otch states that are cut into, to improve fiber surface area, the cohesive force of the product of subsequent production is strengthened, thereby having been reached, the application both met the ability that realizes fast broken off by water flush, possessed again dry, powerful demand under hygrometric state.2, the application's nonwoven fabric adopts the design of the wood pulps of the 35-flat viscose of 50% zigzag and 65-50%, is two of technical characterictic of the present utility model.The object of doing is like this: because the application's the flat viscose of zigzag and wood pulp all passed through preliminary treatment, pretreated fiber surface or side are got rid of is cut into many otch status architectures, in the process that this incision-like structure is processed in water thorn, be very easy to realize the mutual entanglement between fiber and otch, both greatly improved and formed continuously sheet nonwoven fabric intensity, and can under the effect of water punching, be convenient to break up fast again.3, the application's nonwoven fabric is without adhesive, and the design of All Pure Nature degradation material, is three of technical characterictic of the present utility model.The object of doing is like this: the raw material required due to the application's nonwoven fabric have passed through preliminary treatment, its pretreated result, intermeshing structure and entanglement face between fiber have been increased widely, therefore under the prerequisite without any binding material, made the broken up degradable spunlace non-woven cloth of the application can meet to be realized under the prerequisite that rapid water breaks up, possessed again under dry, hygrometric state to nonwoven fabric powerful demand.

Technical scheme: a kind of degradable spunlace non-woven cloth that breaks up, by the wood pulps of the 35-flat viscose of 50% zigzag and 65-50%, to tangle and form, the strip edge of a knife has been cut in face or the side of the flat viscose of described zigzag.

The utility model is compared with background technology, and the one, breaking up property is good; The 2nd, realized the non-woven fabrics fiber degradable after breaking up, avoided the secondary pollution to environment; The 3rd, because raw material are through preliminary treatment, the feature of its material itself is greatly discharged, and makes to do, the brute force of the nonwoven fabric formed thereby under hygrometric state is good; The 4th, the application adopts micropin water thorn, promote the mutual entanglement of fiber, the frictional force of getting rid of the viscose surface micro-incision of cutting after processing technology making full use of, make the cohesive force of product obtain reinforcement under double action, really capital preservation product do not need to add any chemical adhesive or can the fiber condition of hot melt under, make wet strong this excellent product.

Accompanying drawing explanation

Fig. 1 can break up the status architecture schematic diagram that (gets rid of and cut) after viscose preliminary treatment in degradable spunlace non-woven cloth.

Fig. 2 is the status architecture schematic diagram without preliminary treatment viscose (do not get rid of and cut).

Fig. 3 can break up degradable spunlace non-woven cloth preparation method square frame diagram.

The specific embodiment

Embodiment 1: with reference to attached Fig. 1 and 2.Break up a degradable spunlace non-woven cloth, by the wood pulps of the 35-flat viscose of 50% zigzag and 65-50%, tangled and formed, the strip edge of a knife 10 has been cut in face or the side of the flat viscose 9 of described zigzag.The flat viscose of described zigzag (1) length is 5-20mm.It can break up the preparation method of degradable spunlace non-woven cloth, (1) the flat 5-20mm viscose of 35-50% zigzag is laid in spout, by conveying mechanism 8 feedings, get rid of the machine of cutting 1, by the effect of flail knife high speed shear, in fiber surface or side, get rid of after being cut into many otch states to obtain Lireille; (2) Lireille and wood pulps are sent into condenser 2 by feeding mouth respectively, and condenser 2 is taken out in raw material course of conveying after the air that comes, the condenser 2 of rotation by raw material freely falling body to blender 3; (3) blender 3 is comprised of three groups of equal material rollers, intermediate isolating is divided three sections of homoclines, the material that freely falling body is fallen in blender forms viscose and wood pulps compound under the effect of blender, be arranged on the water inlet injected water of the upper end of blender, make the material that is positioned at blender form full and uniform working slurry; (4) full and uniform work slurries flow into shaped opening, the negative pressure acting in conjunction that is shaped and asks net 4 and suction box 7 to produce by nonwoven fabric, and water is pumped, and fibrous raw material stays in holder net, thereby produces the fibre web laminated structure being shaped; (5) by holding in the palm, guipure is moving inputs to micropin water spine area to fibre web, and through the effect of micropin water jet liquid drugs injection, fiber tangles mutually, forms continuously sheet nonwoven fabric.Micropin water jet outer race has clamping net, and this clamping net becomes clamping shape between holder net to fiber web, under the effect of micropin water thorn, guarantee that fiber web does not produce larger displacement, guarantees the fiber web uniformity, reduces the loss of fiber.

It is to be understood that: although above-described embodiment is to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text of the utility model mentality of designing is described; rather than the restriction to the utility model mentality of designing; any combination, increase or modification that does not exceed the utility model mentality of designing, all falls in protection domain of the present utility model.

Claims (2)

1. at a kind of degradable spunlace non-woven cloth that breaks up, by the flat viscose of zigzag and wood pulps, tangle and form, it is characterized in that: the strip edge of a knife (2) has been cut in the face of the flat viscose of described zigzag (1) or side.

2. the degradable spunlace non-woven cloth that breaks up according to claim 1, is characterized in that: the flat viscose of described zigzag (1) length is 5-20mm.