CN-122013543-A - Moisture-absorbing sweat-releasing blended fabric and preparation process thereof

CN122013543ACN 122013543 ACN122013543 ACN 122013543ACN-122013543-A

Abstract

The invention relates to the technical field of blend fibers, and discloses a moisture-absorbing and sweat-releasing blended fabric and a preparation process thereof, wherein the moisture-absorbing and sweat-releasing blended fabric is a durable moisture-conducting finished double-sided fabric, and comprises a skin-adhering side and an outer side; the skin-adhering side is formed by first blended yarns, the first blended yarns comprise hydrophilic fibers and first wet-guiding synthetic fibers, the outer side is formed by second yarns, the second yarns comprise second wet-guiding synthetic fibers, the first wet-guiding synthetic fibers and the second wet-guiding synthetic fibers are special-shaped section polyester fibers and hydrophilic polyester fibers, durable wet-guiding finishing is used for forming a hydrophilic film layer on the skin-adhering side of the double-sided fabric, and the hydrophilic film layer contains a moisture absorption auxiliary agent and is used for improving the continuous perspiration capacity of the double-sided fabric in a wet environment and keeping the level dyeing property and color fastness of the double-sided fabric. The invention solves the problems of the prior moisture absorption and sweat releasing fabric that the sweat releasing capacity is reduced and the fabric surface is moist and sticky in a wet environment.

Inventors

ZHANG ZHIGUO
LAO HONGMEI
LIU QINGHUA
LING YUBIN
HOU YINGYING
LIU JIANING
ZHANG RUNZI
Ling Ruoxin

Assignees

山东阳信华龙纺织科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260325

Claims (10)

1. The moisture-absorbing and sweat-releasing blended fabric is characterized by being a durable moisture-conducting finished double-sided fabric and comprising a skin-adhering side and an outer side; The skin-contacting side is made of first blended yarns, and the first blended yarns are obtained by blending hydrophilic fibers and first wet-type synthetic fibers The outer side is made of a second yarn, which is spun from a second moisture-conductive synthetic fiber; Wherein, the first wet-guiding synthetic fiber and the second wet-guiding synthetic fiber are polyester fiber with special-shaped cross section and/or hydrophilic polyester fiber; The durable moisture-conducting finishing is used for forming a hydrophilic film layer on the skin-contacting side of the double-sided fabric to construct a moisture migration channel, and the hydrophilic film layer contains a moisture absorption auxiliary agent which is used for improving the continuous perspiration capacity of the double-sided fabric in a wet environment and keeping the leveling property and the color fastness of the double-sided fabric.
2. The moisture-absorbing and sweat-releasing blended fabric according to claim 1, wherein the hydrophilic fiber is one or more of lyocell fiber, modal fiber, viscose fiber and cotton fiber, and the first moisture-conducting synthetic fiber and the second moisture-conducting synthetic fiber are one or more of polyester fiber with groove-shaped, cross-shaped or trilobal cross-section.
3. The moisture-absorbing and sweat-releasing blended fabric according to claim 2, wherein in the first blended yarn, the mass fraction of the hydrophilic fiber is 55-80%, and the mass fraction of the first moisture-conducting synthetic fiber is 20-45%; In the second yarn, the mass fraction of the second moisture-conductive synthetic fiber is 70-95%.
4. The moisture-absorbing and sweat-releasing blended fabric according to claim 1, wherein the durable moisture-conducting finishing is that a hydrophilic film layer is formed on the surface of the fiber, and the hydrophilic film layer is formed by reaction and solidification of a hydrophilic polymer and a cross-linking agent; the hydrophilic polymer is one or more of aqueous polyurethane, aqueous acrylic resin or polyethylene glycol hydrophilic agents, and the cross-linking agent is one or more of multifunctional epoxy resin, polycarboxylic acid cross-linking agent or polyisocyanate cross-linking agent.
5. The moisture-absorbing and sweat-releasing blended fabric according to claim 1, wherein the moisture-absorbing auxiliary agent is inorganic moisture-absorbing agent particles and/or load-type moisture-absorbing salt; the inorganic moisture absorbent particles are silica gel; the supported hygroscopic salt is formed by loading one or more of magnesium chloride and calcium chloride on a porous carrier of silica gel; the moisture absorption auxiliary agent is fixed on the fiber surface of the skin-adhering side through the hydrophilic film layer and is used for reducing moisture accumulation on the surface of the fabric so as to ensure stable perspiration performance.
6. The moisture-absorbing and sweat-releasing blended fabric according to claim 2, wherein the hydrophilic fiber is a cationized modified fiber, and the first moisture-conducting synthetic fiber and the second moisture-conducting synthetic fiber are modified polyester fibers capable of being dyed by cationic dyes; the cationized modified fiber is cellulose fiber which is modified by introducing quaternized groups, and the modified polyester fiber is copolymerized modified polyester fiber containing sulfonate groups.
7. A process for preparing the moisture-absorbing and sweat-releasing blended fabric, which is used for preparing the moisture-absorbing and sweat-releasing blended fabric as claimed in any one of claims 1 to 6, and is characterized by comprising the following steps: spinning hydrophilic fibers and first wet-type synthetic fibers in a blending manner according to a set proportion to obtain first blended yarns, and spinning second yarns by adopting second wet-type synthetic fibers; Performing double-sided knitting forming by using a double-sided knitting machine, so that the first blended yarn forms a skin-contacting side, and the second yarn forms an outer side, thereby obtaining a double-sided fabric; Finishing dyeing and fixation finishing after pretreatment of the double-sided fabric; And padding the double-sided fabric with finishing liquid containing hydrophilic polymer, cross-linking agent and hygroscopic auxiliary agent, and then drying, baking and cross-linking to form a hydrophilic film layer containing hygroscopic auxiliary agent on the surface of the skin-contacting side fiber so as to obtain the hygroscopic and sweat-releasing blended fabric.
8. The process for preparing the moisture-absorbing and sweat-releasing blended fabric according to claim 7, wherein the mass fraction of the hydrophilic polymer in the finishing liquid is 10-60g/L, and the mass fraction of the cross-linking agent is 2-20g/L; The temperature of the baking is 90-120 ℃, the temperature of the baking is 140-175 ℃, and the baking time is 30-120s; The baking crosslinking is used for enabling the functional groups of the crosslinking agent to chemically react with active groups on the surface of the fiber so as to form stable covalent bonding.
9. The process for preparing the moisture-absorbing and sweat-releasing blended fabric according to claim 7, wherein the double-sided knitting forming comprises plaiting organization, specifically, the first blended yarn is added to the skin-contacting side as plaiting yarn loops, so that the surface coverage rate of the first blended yarn on the skin-contacting side is larger than the surface coverage rate of the second yarn on the outer side.
10. The process for preparing the moisture-absorbing and sweat-releasing blended fabric according to claim 7, wherein the average particle size of the moisture-absorbing auxiliary agent is 2-30 μm, and the dosage is 5-80g/L; The moisture absorption auxiliary agent is fixed on the surface of the skin-adhering side fiber after padding, drying and baking along with the finishing liquid, and is used for keeping the moisture absorption auxiliary agent effectively after the fabric is washed for a plurality of times.

Description

Moisture-absorbing sweat-releasing blended fabric and preparation process thereof Technical Field The invention relates to the technical field of blend fibers, in particular to a moisture-absorbing and sweat-releasing blended fabric and a preparation process thereof. Background With the increasing level of living and health awareness of people, there is an increasing demand for comfort in textiles, particularly in underwear and sportswear. The moisture absorption and sweat release functions are one of important indexes for evaluating the wearing comfort of the fabric, and sweat on the surface of the skin is absorbed and conducted to the outer surface of the fabric to evaporate rapidly, so that the skin of a human body is kept dry and comfortable, and the wearing experience is improved. While traditional natural fibers such as cotton fibers have good hygroscopicity, the perspiration speed is low, so that the fabric is easy to be adhered closely, while chemical fibers such as polyester fibers have quick perspiration, but the moisture absorption performance is insufficient. Therefore, the high-performance fabric with good hygroscopicity and rapid perspiration is developed by optimally combining different performance fibers through a blending technology, and the high-performance fabric has become an important research direction in the textile field. In the prior art, the moisture absorption and sweat release blended fabric is generally blended by hydrophilic fibers and hydrophobic fibers according to a certain proportion, and the moisture absorption and sweat release functions are realized by utilizing the capillary effect and the moisture gradient among the fibers. Common technical schemes comprise blending of polyester and cotton fiber, blending of polyester and viscose fiber, blending of polyester and bamboo fiber and the like. The moisture absorption and sweat release performances of the blended fabrics are optimized by adjusting the fiber proportion, the yarn structure and the fabric structure, so that market demands are met to a certain extent. However, the conventional moisture-absorbing and sweat-releasing blended fabric still has some defects in practical application, namely the continuous sweat-releasing capability of the fabric is obviously reduced under the conditions of high-humidity environment or large amount of sweat release, so that the fabric surface is wet and accumulated, wearing comfort is affected, the problem that the hydrophilic-hydrophobic difference among the blended fibers is favorable for moisture transmission, but uneven dyeing or reduced color fastness is easily caused in the dyeing and finishing process is solved, the conventional moisture-absorbing and sweat-releasing finishing method mainly adopts a physical adsorption or padding mode to apply finishing agent on the fabric surface, the finishing agent and the fibers lack of firm combination, the fabric is easy to fall off and run off after washing for many times, the moisture-conducting effect of the fabric is gradually weakened, and the fabric with good moisture-absorbing and sweat-releasing performance often has obvious performance decline after being used for a period of time during new purchase, so that wearing experience is affected. These problems limit the performance improvement and application expansion of the moisture absorption and sweat release blended fabric to a certain extent. For the problems in the related art, no effective solution has been proposed at present. Disclosure of Invention Aiming at the problems in the related art, the invention provides a moisture absorption and sweat release blended fabric and a preparation process thereof, so as to overcome the technical problems in the prior related art. For this purpose, the invention adopts the following specific technical scheme: According to one aspect of the invention, the moisture-absorbing and sweat-releasing blended fabric is a durable moisture-conducting finished double-sided fabric, and comprises a skin-adhering side and an outer side, wherein the skin-adhering side is made of first blended yarns, the first blended yarns are obtained by blending hydrophilic fibers and first moisture-conducting synthetic fibers, the outer side is made of second yarns, the second yarns are obtained by spinning second moisture-conducting synthetic fibers, the first moisture-conducting synthetic fibers and the second moisture-conducting synthetic fibers are special-shaped cross-section polyester fibers and/or hydrophilic polyester fibers, the durable moisture-conducting finishing is used for forming a hydrophilic film layer on the skin-adhering side of the double-sided fabric to construct a moisture migration channel, and the hydrophilic film layer contains a moisture absorption auxiliary agent which is used for improving the continuous sweat-releasing capability of the double-sided fabric in a wet environment and keeping the dyeability and color fastness of the double-sid