CN103806222A

CN103806222A - Multi-component integrally formed hot air non-woven fabric and manufacturing method thereof

Info

Publication number: CN103806222A
Application number: CN201410084902.8A
Authority: CN
Inventors: 宋志敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-10
Filing date: 2014-03-10
Publication date: 2014-05-21

Abstract

A multi-component integrally formed hot air non-woven fabric comprises a plurality of layers of stacked fibers, specifically, the hot air non-woven fabric finally made of the stacked fibers is in a structure gradually becoming dense from loose from top to bottom, loose crude fibers face the skin, and dense fine fibers face a core body. Meanwhile, the invention further provides a manufacturing method of the multi-component integrally formed hot air non-woven fabric. The multi-component integrally formed hot air non-woven fabric provided by the invention has the characteristics of rapid absorption and diffusion, large absorbing area, and dry and clean contact surface.

Description

A kind of multicomponent one-shot forming hot-wind nonwoven cloth and manufacture method thereof

Technical field

The present invention relates to personal hygiene article field, be specifically related to a kind of multicomponent one-shot forming hot-wind nonwoven cloth and manufacture method thereof.Hot-wind nonwoven cloth of the present invention can be used as the surface material of the absorbing products such as sanitary napkin, disposable diaper.

Background technology

For the superficial layer of the absorbent commodity such as sanitary napkin, disposable diaper, its desired function is, liquid trafficability characteristic is good, and the liquid that absorbed layer absorbs is few at remained on surface, and dry and comfortable property is good, is difficult for occurring reverse osmosis, soft-touch, and skin contact excitant is little.

At present, the material of the absorbing products such as sanitary napkin, disposable diaper on the market surface layer used roughly has two kinds: one is spun-bonded non-woven fabrics, dry and comfortable better performances, and shortcoming is soft not comfortable; Another kind is hot-wind nonwoven cloth, although comfortable softness, its dry and comfortable performance is good not, and liquid is easy at surface layer residual, and excreta is easily damaged skin, brings out various skin diseases.

Manufacture a product in process, in order to suppress damp, or allow surface layer obtain the objects such as better texture, sense of touch, conventionally can apply suitable embossed pattern, to reduce and the contact area of skin, thereby allow dermal sensation obtain the dry and comfortable stimulation simultaneously reducing skin.But above-mentioned way just allows wearer sensuously more comfortable, do not make the liquid problem of diffusion rapidly from solving in essence, and manufacturing process's complexity.

Also have the liquid superficial layer that is subject to of some absorbent commodities often to have aperture, absorbed by liquid-adsorption layer by perforate with the liquid that makes to flow on surface layer, the liquid trafficability characteristic of this superficial layer is good, also reduce to some extent with the contact area of skin, dry and comfortable performance is better than the equivalent material of not perforate, but due to the hot-wind nonwoven cloth for perforate, fluffy fibre gap still can residual liquid, easily makes skin have damp.

And when the absorbed layer of existing absorber is arranged from top to bottom, finer and close nonwoven fabric is upper often, loose guide layer under, be difficult to make liquid to spread rapidly.

Summary of the invention

In order to overcome the deficiencies in the prior art, the invention provides a kind of have concurrently comfortable and dry and comfortable multicomponent one-shot forming hot-wind nonwoven cloth and manufacture method thereof.

The technical scheme that the present invention deals with problems is: a kind of multicomponent one-shot forming hot-wind nonwoven cloth, formed by some layers of fibre lay-up, concrete, the hot-wind nonwoven cloth finally being formed by fibre lay-up is to fade to closely knit structure by loosening from top to bottom, loose crude fibre layer is towards skin, and closely knit fine fiber layer is towards core body.

In technique scheme, each fibrage can mix and make with different fibers.

In technique scheme, the preferable range of fibre number is: 0.8～10 Tekes (dtex).

Preferably, in adjacent fiber layer, in the region of equal volume, the fiber number of fine fiber layer be crude fibre layer fiber number 1.5-5 doubly.

Preferably, every layer of fibrage grammes per square metre 8-20 gram/m.

For making liquid rapidly toward surface layer diffuse underneath when, can pin liquid, a kind of preferred technical scheme is: on nonwoven fabric with concave point.

The manufacture method that the invention still further relates to multicomponent one-shot forming hot-wind nonwoven cloth, comprises the following steps:

(a) fiber of different fineness is carried out respectively to shredding on opener;

(b) then on carding machine, carry out respectively combing;

(c) by different fineness fiber good combing according to upper loose crude fibre, the sequential cascade of lower closely knit fine fibre, dredges lower close structure in formation;

(d) stacked good fiber is sent into baking oven and carry out thermoforming, make hot-wind nonwoven cloth;

(e) the good hot-wind nonwoven cloth of thermoforming is cut.

Preferably, the thermoforming in described step (d) also comprises carries out hot rolling by fibrage stacked multicomponent, forms concave point.

Remarkable result of the present invention is:

Owing to having designed from top to bottom, from dredging close multicomponent surface layer structure, when liquid runs into after superficial layer, due to capillarity, liquid can the downward dense layer diffusion of weaker zone from surface layer rapidly.In absorbent commodity, assemble after such surface layer, even if repeatedly imbibition is also spread rapidly, even do not needed guide layer.

2. owing to being shaped with concave point on surface layer, liquid, in down spreading rapidly, can first gather concave point place by capillarity, then be spread and absorbed from concave point toward absorptive core, making does not almost have liquid residue in surface layer fibre gap, and skin contact feels dry and comfortable time surface layer.

3. because this surface layer has the fast characteristic of water conservancy diversion, make absorption area large, just increased accordingly SAP(super absorbent resin) utilization rate, so in the time manufacturing paper diaper absorptive cores, can suitably reduce the consumption of SAP, cost-saving.

Accompanying drawing explanation

Be described further below in conjunction with drawings and Examples.

Fig. 1 is the schematic cross-section of multicomponent one-shot forming hot-wind nonwoven cloth of the present invention.

Fig. 2 is the schematic cross-section of the multicomponent one-shot forming hot-wind nonwoven cloth of band concave point of the present invention.

Fig. 3 is multicomponent one-shot forming hot-wind nonwoven cloth production technological process of the present invention.

Wherein, the upper weaker zone of 1-, dense layer under 2-, 3-concave point.

The specific embodiment

Embodiment 1

As shown in Figure 1, a kind of multicomponent one-shot forming hot-wind nonwoven cloth, is made up of some layers of fibre lay-up, concrete, the hot-wind nonwoven cloth finally being formed by fibre lay-up is to fade to closely knit structure by loose from top to bottom, and loose crude fibre layer is towards skin, and closely knit fine fiber layer is towards core body.

Its technological process of production as shown in Figure 3, first select 15 grams/m, fiber number is respectively the fiber of 0.8 Tekes, 2 Tekes, 3.2 Tekes, on opener, carry out respectively shredding, then carry out respectively combing, according to upper loose crude fibre, the order of lower closely knit fine fibre is undertaken stacked by three kinds of fibrages afterwards.Send into again baking oven and carry out drying sizing, the final structure that is gradient to lower dense layer 2 by upper weaker zone 1 that forms.The hot-wind nonwoven cloth finally thermoforming being made is cut.Made hot-wind nonwoven cloth with regard to one-shot forming like this, it can be used as the surface material that the absorbing products such as sanitary napkin, disposable diaper is used.

Embodiment 2

As shown in Figure 2, repeat embodiment 1, just further, for making liquid rapidly toward surface layer diffuse underneath when, can pin liquid, the concave point 3 that has hot rolling to go out on described multicomponent one-shot forming hot-wind nonwoven cloth, can concentrate on liquid concave point 3 places.Its hot rolling technology is to complete in thermoforming step as shown in Figure 3, carries out, after drying sizing, fibrage stacked multicomponent being carried out to hot rolling the fibrage after stacked being sent into baking oven, forms concave point 3.

Multicomponent one-shot forming hot-wind nonwoven cloth described in above-mentioned arbitrary embodiment in use, loose crude fibre side is towards skin, closely knit fine fibre side is towards core body, when liquid runs into after superficial layer, due to capillarity, liquid can be rapidly from surface layer the downward dense layer 2 of weaker zone 1 spread, when making skin contact to surface layer, feel dry and comfortable.

Claims

1. a multicomponent one-shot forming hot-wind nonwoven cloth, formed by some layers of fibre lay-up, it is characterized in that: the hot-wind nonwoven cloth finally being formed by fibre lay-up is to fade to closely knit structure by loose from top to bottom, and loose crude fibre layer is towards skin, and closely knit fine fiber layer is towards absorptive core.

2. multicomponent one-shot forming hot-wind nonwoven cloth according to claim 1, is characterized in that: in adjacent fiber layer, in the region of equal volume, the fiber number of fine fiber layer be crude fibre layer fiber number 1.5-5 doubly.

3. multicomponent one-shot forming hot-wind nonwoven cloth according to claim 1, is characterized in that: every layer of fibrage grammes per square metre 8-20 gram/m.

4. multicomponent one-shot forming hot-wind nonwoven cloth according to claim 1, is characterized in that: fibre number scope is: 0.8～10 Tekes (dtex).

5. multicomponent one-shot forming hot-wind nonwoven cloth according to claim 1, is characterized in that: each fibrage can be with different fiber blending.

6. multicomponent one-shot forming hot-wind nonwoven cloth according to claim 1, is characterized in that: on described nonwoven fabric with concave point.

7. a manufacture method for hot-wind nonwoven cloth described in claim 1, is characterized in that: comprise the following steps:

(b) then on carding machine, carry out respectively combing;

(e) the good hot-wind nonwoven cloth of thermoforming is cut.

8. the manufacture method of hot-wind nonwoven cloth according to claim 7, is characterized in that: the thermoforming in described step (d) also comprises carries out hot rolling by fibrage stacked multicomponent, forms concave point.