阅读说明：本技术 多功能面料及其制备方法 (Multifunctional fabric and preparation method thereof ) 是由 陈红霞 李鑫 沈玲 袁洪胜 于 2020-05-21 设计创作，主要内容包括：本发明公开了一种多功能面料及其制备方法,所述多功能面料包含面料层、粘结层和薄膜层,所述薄膜层经过柔软整理并具有微孔,所述薄膜层通过粘结层附着于面料层反面,该多功能面料手感柔软亲肤,翻动无响声,防羽性能持久,透气性极佳。该多功能面料制备方法适用性广,面料层的材质、纱线、织物结构均不受限制,简便易行,对设备及原材料无特殊要求。(The invention discloses a multifunctional fabric and a preparation method thereof, the multifunctional fabric comprises a fabric layer, an adhesive layer and a film layer, the film layer is subjected to soft finishing and is provided with micropores, the film layer is attached to the reverse side of the fabric layer through the adhesive layer, and the multifunctional fabric is soft in hand feeling, skin-friendly, free of noise in turning, durable in feather prevention performance and excellent in air permeability. The preparation method of the multifunctional fabric has wide applicability, the material, yarn and fabric structure of the fabric layer are not limited, the preparation method is simple and easy to implement, and no special requirements are imposed on equipment and raw materials.)

1. The multifunctional fabric is characterized by comprising a fabric layer, an adhesive layer and a film layer, wherein the film layer is attached to the back surface of the fabric layer through the adhesive layer, and the film layer is subjected to soft finishing and is provided with micropores; wherein the maximum aperture range of the micropores is 15-25 μm, the minimum aperture range of the micropores is 2-6 μm, the aperture range with the largest proportion of micropore aperture distribution is 6-10 μm, and the proportion range with the largest proportion of micropore aperture distribution is 25-50%.

2. The multifunctional fabric according to claim 1, wherein the maximum pore size of the micropores is in a range of 15 to 20 μm.

3. The multifunctional fabric according to claim 1, wherein the minimum pore size of the micropores is in a range of 4 to 6 μm.

4. The multifunctional fabric according to claim 1, wherein the adhesive layer is a hot melt adhesive or a porous nanoweb.

5. According to claimThe multifunctional fabric of claim 4, wherein the porous nanofiber web has a grammage of 5-15 g/cm²。

6. The multifunctional fabric according to claim 1, wherein the fabric layer is made of cotton or regenerated cellulose fiber, and the gram weight of the fabric layer is 60-160 g/m²。

7. The multifunctional fabric according to claim 1, wherein the film layer is a polyurethane film, a polyethylene film, or a polytetrafluoroethylene film.

8. The preparation method of the multifunctional fabric is characterized by comprising the following steps of:

(1) preparing a fabric layer;

(2) softening and finishing the film layer;

(3) punching a thin film layer;

(4) and (5) bonding the fabric layer and the film layer.

Technical Field

The invention relates to a multifunctional fabric and a preparation method thereof, in particular to a soft, mute, anti-velvet-penetration and breathable multifunctional fabric and a preparation method thereof.

Background

The down feather is in a star-shaped structure, and the down feather fibers are provided with a large number of tiny pores and can contain a large amount of static air, so that the manufactured down feather quilt has good heat retention property and is popular with consumers. However, the down filaments on the down feather are very thin, and the problem that the down feather leaks out, namely the down feather is drilled out easily occurs in the quilt core fabric in the actual use process. In addition, the down feather fibers have a dust phenomenon under the condition of long-time storage (even under the condition of no illumination), so that fine dust generated by the down feather fibers is released into the air through the fabric and possibly inhaled by a human body to cause respiratory diseases.

At present, the anti-run-down fabric mainly has two preparation modes, the first mode is to form a structural phase with high tightness of the fabric in a high-count and high-density mode, meanwhile, the post-finishing of a wind-proof agent is assisted, and the processing stage is matched with a calendaring process to flatten yarns, so that the wind-proof agent is favorably and fully formed into a film; the second method is to adopt sea-island fiber or composite fiber filament with soluble partial components in a certain weaving direction, partially dissolve the prepared fabric through a subsequent fiber opening process to form a fluffy yarn body structure consisting of superfine fiber, wherein the fabric has superfine micropores, is breathable and moisture permeable, but the subsequent processing stage of the method also needs windproof finishing and calendaring technology to reduce the yarn characteristics of the sea-island fiber to a certain extent, and the hand feeling is hard, and on the other hand, the high-density chemical fiber can lead the home textile fabric to lose the skin-friendly characteristic. In addition, a method is also provided for coating a high moisture-permeable film on the fabric to obtain the down-proof fabric with a certain moisture-permeable effect, but the high moisture-permeable film body has low air permeability, so that the obtained fabric has poor moisture-permeable performance and poor air permeability; in addition, the coating can change the style of the fabric, the hand feeling is hard, the sound is large, the plastic feeling is strong, and the fabric is not suitable for being used as household textiles.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to provide a soft, mute, down-proof and breathable multifunctional fabric and a preparation method thereof.

The technical scheme is as follows: the multifunctional fabric comprises a fabric layer, a bonding layer and a film layer, wherein the film layer is attached to the reverse side of the fabric layer through the bonding layer, and the film layer is subjected to soft finishing and is provided with micropores; wherein the maximum aperture range of the micropores is 15-25 μm, the minimum aperture range of the micropores is 2-6 μm, the aperture range with the largest proportion of micropore aperture distribution is 6-10 μm, and the proportion range with the largest proportion of micropore aperture distribution is 25-50%.

Preferably, the maximum pore diameter range of the micropores is 15-20 μm, and the minimum pore diameter range of the micropores is 4-6 μm.

Preferably, the bonding layer is a hot melt adhesive or a porous nanofiber web.

Wherein the hot melt adhesive is WS type hot melt adhesive or PUR type hot melt adhesive, and the porous nanofiber net is polypropylene or polyester-polypropylene melt-blown non-woven fabric.

Further preferably, the gram weight of the porous nanofiber web is 5-15 g/cm²。

The hot melt adhesive is used as a bonding layer and is usually applied to the fabric in a complete layer form, so that the fabric after the hot melt adhesive is cured has hard hand feeling and lower air permeability. The porous nanofiber net layer is used as a bonding layer, and the superfine fibers are arranged in disorder, so that the contact area of the porous nanofiber net layer and the fabric at the same position is smaller, but the porous nanofiber net layer is in linear contact with the fabric, the hand feeling and the air permeability of the bonded fabric are basically not influenced, and the bonding fastness is high.

Preferably, the noodlesThe material of the material layer is cotton or regenerated cellulose fiber, and the gram weight of the material layer is 60-160 g/m²。

In the multifunctional fabric, the material, yarn and fabric structure of the fabric layer are not limited, and the prepared fabric can achieve the effects of softness, silence, air permeability and down penetration prevention.

In order to achieve the comfort of the home textile fabric, cotton or regenerated cellulose fibers are preferred as the fabric layer in the invention. However, fabrics for other applications can be produced by the technical scheme of the invention, and the selection of the yarn material is not limited to the above fiber types, and other chemical fibers besides cellulose fibers can be selected.

Preferably, the film layer is a polyurethane film, a polyethylene film or a polytetrafluoroethylene film.

The multifunctional fabric has small selection limit on the film layer, and the film layer can be modified according to requirements, so that the product has rich functionality, such as functions of antibiosis, mite prevention, deodorization and the like. The polytetrafluoroethylene membrane has a large number of physical microporous structures, so that only a bonding process of a thin film layer and a fabric layer is needed, and a physical pore opening process is not needed. The polytetrafluoroethylene film is softer, and hardly generates extra plastic feeling when being bonded with the fabric, and meanwhile, the rigidity of the film body cannot be increased under the use environment with lower temperature.

The preparation method of the multifunctional fabric is characterized by comprising the following steps of:

(1) preparing a fabric layer;

(2) softening and finishing the film layer;

(3) punching a thin film layer;

(4) and (5) bonding the fabric layer and the film layer.

In order to ensure the appearance quality of the final finished product, the pH value of the prepared fabric layer is kept between 4.0 and 7.0, and the optimal range of the pH value of the fabric layer is 4.5 to 6.5.

In the soft finishing procedure of the step (2), the soft finishing method of the film layer is to dip the film into the organic silicon soft finishing liquid and then dry the film to prepare the film with soft and smooth hand feeling; wherein the concentration of the organosilicon softening finishing agent is 5-20 g/L, the drying temperature is 110-115 ℃, and the winding speed is 30-40 m/min.

In the punching procedure of the step (3), the needle planting density of the punching machine is 300-500 pieces/m, the punching frequency is 180-250 times/min, and the film feeding amount is 0.2-0.5 m/s.

In the step (4), in the step of bonding the fabric layer and the film layer, when the bonding layer is a hot melt adhesive arranged in a dot matrix manner, hot-pressing bonding is adopted, and the gluing amount is 0.2-3.0 g/m²The pressure of the hot pressing roller is 1.8-2.2 kg/m²The speed is 35-45 m/min; when the bonding layer is a porous nanofiber net, a hot-pressing or ultrasonic bonding mode is adopted.

In the bonding process, a hot-pressing bonding technology is conventionally adopted, and when the porous nanofiber web is used as a bonding layer, an ultrasonic bonding mode can be adopted. The melting effect of ultrasonic bonding on the fabric is more uniform, the acting position is only on the bonding layer, the structural influence of the fabric layer and the film layer is small, and the original fluffy and soft characteristics of the fabric can be kept as far as possible.

The multifunctional fabric disclosed by the invention is optimized in the process of bonding, particularly the gluing amount is optimized, the bonding firmness can be met, the blockage of micropores on a film in the bonding process can be reduced, and the air permeability of the fabric is not influenced.

Has the advantages that: compared with the prior art, the invention has the following remarkable advantages:

(1) the film layer in the multifunctional fabric has a microporous structure in the physical structure sense, so that the air permeability of the fabric is improved, and the optimal air permeability of the fabric can be more than 25 mm/s; meanwhile, the film material with high rigidity, high stiffness and high turning noise becomes softer and quieter, the plastic feeling of the film is reduced through soft finishing, the softness and smoothness are enhanced, the best rigidity and toughness is less than 70, the best softness is more than 90, and the best smoothness is more than 90, so that the film material is better matched with a woven fabric layer, and the softer hand feeling is obtained;

(2) after the multifunctional fabric is subjected to film coating processing, the down penetration preventing effect is good and lasting, the number of the leaked down is less than 10 in single detection of the fabric, and the number of the leaked down is still less than 10 in 10 repeated detections; meanwhile, potential harm caused by the dust of the down feather in the long-term use process is avoided;

(3) the material, yarn and fabric structure of the fabric layer in the multifunctional fabric are not limited, and the material and structure matching with better comfort can be selected, such as thinner and softer yarn, the warp and weft density of the fabric does not need to reach very high tightness, and the whole fabric is more comfortable and lighter;

(4) the porous nanofiber net of the bonding layer in the multifunctional fabric is breathable, soft and strong in plasticity, the ultrasonic bonding technology is efficient and clean, and the influence on the original structural performance of the fabric is less, so that after the film is coated and attached, the fabric is not hard in hand feeling, the breathability is not reduced, and the noise is low; the hot melt adhesive adopts a dot matrix bonding mode, so that the bonding firmness can be met, and the hand feeling and the air permeability of the fabric can not be influenced;

(5) the preparation method of the multifunctional fabric has wide applicability, the material, yarn and fabric structure of the fabric layer are not limited, the operation is simple and easy, and no special requirements on equipment and raw materials are required

Drawings

FIG. 1 is a schematic structural view of a multifunctional fabric of the present invention;

wherein, 1 is a fabric layer, 2 is a bonding layer, 3 is a film layer, and 4 is a micropore.

Detailed Description

The technical solution of the present invention is further illustrated by the following examples.