阅读说明：本技术 一种多功能面料及其制备方法 (Multifunctional fabric and preparation method thereof ) 是由 姜露 吴大伟 刘元美 周怡琰 孙克磊 鲁曼曼 于 2020-06-02 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,自上而下依次包括面纱(1)、底纱(2)和交联层(3),其中面纱(1)朝向外侧并起导湿作用,所述底纱(2)的纱线直径是面纱(1)纱线直径的1～5倍,其中底纱(2)亲肤侧通过交联二氧化钛形成交联层(3)。本发明通过对纱线直径的设置及表面粗糙度的构建,可以保证运动时汗液从皮肤排到面料外侧,保持面料内侧干爽,增加人体舒适度,与此同时,还可以减少室外运动时太阳光的吸收从而具有遮热、抗UV功能,本发明制备方法设计合理、工艺简单,可操作性强,可应用于工业生产。(The invention discloses a multifunctional fabric and a preparation method thereof, and the multifunctional fabric sequentially comprises a face yarn (1), a bottom yarn (2) and a cross-linking layer (3) from top to bottom, wherein the face yarn (1) faces outwards and plays a role in moisture conduction, the yarn diameter of the bottom yarn (2) is 1-5 times of that of the face yarn (1), and the skin-friendly side of the bottom yarn (2) forms the cross-linking layer (3) through cross-linking titanium dioxide. The yarn diameter and the surface roughness are set, sweat can be discharged from the skin to the outer side of the fabric during sports, the inner side of the fabric is kept dry, the comfort degree of a human body is improved, and meanwhile, the absorption of sunlight during outdoor sports can be reduced, so that the fabric has the functions of heat shielding and UV resistance.)

1. A multifunctional fabric is characterized in that: the wet-type fabric comprises a face yarn (1), a bottom yarn (2) and a cross-linking layer (3) from top to bottom in sequence, wherein the face yarn (1) faces outwards and plays a role in guiding moisture, the yarn diameter of the bottom yarn (2) is 1-5 times that of the face yarn (1), and the skin-friendly side of the bottom yarn (2) forms the cross-linking layer (3) through cross-linking titanium dioxide.

2. The multifunctional fabric according to claim 1, wherein: the specification of the face yarn (1) is 75D/144F, wherein the face yarn (1) is composed of yarns with single-fiber fineness of 0.52D and single-fiber fineness of less than 0.52D, the specification of the bottom yarn (2) is 75D/72F, and the bottom yarn (2) is composed of yarns with single-fiber fineness of 1.04D and single-fiber fineness of more than 1.04D.

3. The multifunctional fabric according to claim 1, wherein: the crosslinking layer (3) is obtained by crosslinking nano-scale titanium dioxide powder on the ground yarn (2), wherein the crosslinking layer (3) is micron-sized, so that the fabric still has good flexibility and does not cause discomfort on the skin-friendly side of the fabric.

4. The multifunctional fabric according to claim 1, wherein: the gaps among the bottom yarns (2) are larger than the gaps among the surface yarns (1), and the yarns are all terylene.

5. A preparation method of the multifunctional fabric as claimed in any one of claims 1 to 4, characterized by comprising the following steps:

step 1) weaving the surface yarn (1) and the bottom yarn (2) into a fabric, and removing oil solution, oil stain and other dirt on the fabric;

step 2) soaking the fabric in a pretreatment solution for pretreatment;

and 3) printing and dyeing the slurry containing the nano-scale titanium dioxide powder on the skin side of the pretreated fabric in the step 2) by adopting a flat screen printing and dyeing mode to form a cross-linked layer (3).

6. The preparation method of the multifunctional fabric according to claim 5, characterized in that: the pretreatment solution in the step 2) consists of 4.5-5.5g/L of sodium carbonate, 4.5-5.5g/L of hydrogen peroxide, 6.5-7.5g/L of refining enzyme, 5.5-6.5g/L of refining agent, 12-14g/L of penetrating agent, 1g/L of oxygen bleaching stabilizer and the balance of water, the fabric is soaked in the pretreatment solution and heated to 35-45 ℃, and the bath ratio is 1: 15-20.

7. The preparation method of the multifunctional fabric according to claim 5, characterized in that: the slurry in the step 3) consists of 1-2 wt% of synergist, 1-1.6 wt% of thickener, 0.18-0.36 wt% of nano-scale titanium dioxide powder and the balance of water, wherein the preparation process of the slurry is as follows: firstly, ultrasonically dispersing nano-scale titanium dioxide powder in water according to the frequency of 40kHz for 10min, then adding a synergist, stirring for 10min according to the rotating speed of 500r/min, then adding a thickener, and continuously stirring for 10min at 500 r/min.

8. The method for preparing a multifunctional fabric according to claim 7, characterized in that: the synergist is selected from an acrylic acid ester amine aqueous solution, the thickening agent is selected from a sodium alginate aqueous solution, and the diameter of the nano-scale titanium dioxide powder is 100-200 nm.

9. The method for preparing a multifunctional fabric according to claim 5, characterized in that: the flat screen printing and dyeing method in the step 3) is as follows:

step 3-1), cleaning the pretreated fabric, wherein the water temperature is 60-80 ℃, and the treatment time is 10-20 min;

step 3-2) coating the prepared slurry containing the nano-scale titanium dioxide powder on a screen mesh, scraping the fabric skin-friendly side by adopting a manual or mechanical scraper, and treating for 5-10 min in a water vapor atmosphere at 150-190 ℃;

and 3-3) cleaning the fabric subjected to the scraping operation in a water bath at the temperature of 30-40 ℃, namely forming a cross-linking layer (3) on the skin-friendly side of the bottom yarn (2) of the fabric.

Technical Field

The invention belongs to the technical field of fabrics and processing, and particularly relates to a multifunctional fabric and a preparation method thereof.

Background

With the gradual attention to health, people pay more and more attention to fitness exercise, and have higher requirements on the comfort and the functionality of the exercise process. The common unidirectional moisture-conducting fabric in the market is mainly characterized in that the outer side of the fabric is treated by adopting a hydrophilic auxiliary agent, the skin-friendly side of the fabric is treated by adopting a water-repellent auxiliary agent, the moisture-conducting function is realized by the aid of the two layers of auxiliary agents, the stability of the combination of the auxiliary agents and the fabric is insufficient, the unidirectional moisture-conducting effect is easily damaged by long-term washing, the requirement on the treatment process of the water-repellent auxiliary agent is high, the process stability with good control is difficult, and the cost is higher. Therefore, how to ensure that the fabric can conduct moisture in one direction when the user sweats during sports and reduce the wet and cold feeling after the sports is finished is a hot point of current research.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, provides a multifunctional fabric and a preparation method thereof, and overcomes the defects of the prior art that 1: the moisture-transfer function of the existing one-way moisture-transfer fabric is realized by two layers of auxiliary agents, the stability of the combination of the auxiliary agents and the fabric is insufficient, and the fabric is easy to damage after being washed for a long time and loses the one-way moisture-transfer effect; 2: the existing water repellent auxiliary agent treatment process has high requirements, the well-controlled process stability is difficult, and the cost is higher; 3: the existing fabric has a wet and cold feeling after finishing the movement; 4: the existing fabric has no problems of UV resistance and the like.

In order to solve the technical problem, the technical scheme of the invention is as follows: the multifunctional fabric comprises a face yarn, a bottom yarn and a cross-linking layer from top to bottom in sequence, wherein the face yarn faces outwards and plays a role in guiding moisture, the yarn diameter of the bottom yarn is 1-5 times that of the face yarn, and the skin-friendly side of the bottom yarn forms the cross-linking layer through cross-linking titanium dioxide.

Preferably, the specification of the face yarn is 75D/144F, wherein the face yarn is composed of yarns with single-fiber fineness of 0.52D and single-fiber fineness of less than 0.52D, and the specification of the bottom yarn is 75D/72F, wherein the bottom yarn is composed of yarns with single-fiber fineness of 1.04D and single-fiber fineness of more than 1.04D.

Preferably, the cross-linked layer is obtained by cross-linking nano-scale titanium dioxide powder on the base yarn, wherein the cross-linked layer is in a micron scale, so that the fabric still has good flexibility and does not cause discomfort on the skin-friendly side of the fabric.

Preferably, the gaps between the bottom yarns are larger than the gaps between the surface yarns, wherein the yarns are all terylene.

Preferably, the preparation method of the multifunctional fabric comprises the following steps:

step 1) weaving surface yarns and bottom yarns into a fabric, and removing oil agents, oil stains and other dirt on the fabric;

step 2) soaking the fabric in a pretreatment solution for pretreatment;

and 3) printing and dyeing the slurry containing the nano-scale titanium dioxide powder on the skin side of the pretreated fabric in the step 2) by adopting a flat screen printing and dyeing mode to form a cross-linked layer.

Preferably, the pretreatment solution in the step 2) consists of 4.5-5.5g/L of sodium carbonate, 4.5-5.5g/L of hydrogen peroxide, 6.5-7.5g/L of refining enzyme, 5.5-6.5g/L of refining agent, 12-14g/L of penetrating agent, 1g/L of oxygen bleaching stabilizer and the balance of water, the fabric is soaked in the pretreatment solution and heated to 35-45 ℃, and the bath ratio is 1: 15-20.

Preferably, the slurry in the step 3) consists of 1-2 wt% of synergist, 1-1.6 wt% of thickener, 0.18-0.36 wt% of nano-scale titanium dioxide powder and the balance of water, wherein the preparation process of the slurry is as follows: firstly, ultrasonically dispersing nano-scale titanium dioxide powder in water according to the frequency of 40kHz for 10min, then adding a synergist, stirring for 10min according to the rotating speed of 500r/min, then adding a thickener, and continuously stirring for 10min at 500 r/min.

Preferably, the synergist is selected from an acrylate amine aqueous solution, the thickener is selected from a sodium alginate aqueous solution, and the diameter of the nano-scale titanium dioxide powder is 100-200 nm.

Preferably, the flat screen printing and dyeing method in the step 3) is as follows:

step 3-1), cleaning the pretreated fabric, wherein the water temperature is 60-80 ℃, and the treatment time is 10-20 min;

step 3-2) coating the prepared slurry containing the nano-scale titanium dioxide powder on a screen mesh, scraping the fabric skin-friendly side by adopting a manual or mechanical scraper, and treating for 5-10 min in a water vapor atmosphere at 150-190 ℃;

and 3-3) cleaning the fabric subjected to the scraping operation in a water bath at the temperature of 30-40 ℃, namely forming a cross-linking layer on the skin-friendly side of the bottom yarn of the fabric.

Compared with the prior art, the invention has the advantages that:

1) the moisture-permeable facial fabric comprises a face yarn, a bottom yarn and a cross-linking layer which are sequentially arranged from top to bottom, wherein the face yarn 1 faces to the outside and plays a role in moisture conduction, the yarn diameter of the bottom yarn is 1-5 times of that of the face yarn, the cross-linking layer is constructed on the side, close to the skin, of the bottom yarn, compared with the moisture-permeable facial fabric, the yarn diameter of the bottom yarn is smaller, the yarn diameter of the bottom yarn is thicker, the gaps among the face yarn are smaller, the gaps among the bottom yarn are larger, the wicking effect among the face yarn is dominant, when a human body moves to sweat, the sweat is discharged to the face yarn from the bottom yarn through the wicking effect and spreads on the face yarn, meanwhile, the effect of the sweat transmitted to the face yarn from the bottom yarn is enhanced through the roughness in the cross-linking layer at the bottom of the bottom yarn, and the sweat can be quickly evaporated on the face;

2) according to the invention, the ground yarns are arranged at the bottoms of the face yarns, the cross-linking layers are arranged at the bottoms of the ground yarns, titanium dioxide powder is cross-linked onto the ground yarns through the synergist to form roughness, so that the wicking effect of the ground yarns is enhanced, sweat can be quickly discharged to the face yarns and cannot return, the skin-friendly side of the ground yarns is kept dry and comfortable, and the titanium dioxide can strongly reflect sunlight, so that the heat shielding and UV resisting functions are realized;

3) the yarn diameter and the surface roughness are set, sweat can be discharged from the skin to the outer side of the fabric during sports, the inner side of the fabric is kept dry, the comfort degree of a human body is improved, and meanwhile, the absorption of sunlight during outdoor sports can be reduced, so that the fabric has the functions of heat shielding and UV resistance.

Drawings

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

FIG. 2 is a schematic cross-sectional view of a face yarn and a ground yarn of a multifunctional fabric of the present invention;

fig. 3 is a diagram showing the effect of the heat shield experiment in the embodiments 8 and 9 of the present invention.

Description of the reference numerals

1-face yarn, 2-bottom yarn and 3-crosslinking layer.

Detailed Description

The following description of the embodiments of the present invention refers to the accompanying drawings and examples:

it should be noted that the structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are only for the purpose of understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined by the following claims, and any modifications of the structures, changes in the proportions and adjustments of the sizes, without affecting the efficacy and attainment of the same, are intended to fall within the scope of the present disclosure.

In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.