阅读说明：本技术 一种聚酯纤维与棉纤维混纺面料及其制备工艺 (Polyester fiber and cotton fiber blended fabric and preparation process thereof ) 是由 宫怀瑞 徐良平 何留根 张红艳 张磊 于 2021-10-21 设计创作，主要内容包括：本发明属于纺织用品技术领域,具体公开了一种聚酯纤维与棉纤维混纺面料及其制备工艺。该面料由聚酯纤维与改性型棉纤维混纺而成,该面料的制备工艺包括以下步骤：(1)制备改性型棉纤维：将改性剂、渗透剂和催化剂加入水中配制成处理液,将棉纤维浸渍于处理液中,后捞出,经预烘、焙烘、清洗、烘干,得到改性型棉纤维；(2)将聚酯纤维与改性型棉纤维混合均匀,得到混合纤维；(3)将混合纤维纺织成面料。本发明中,改性型棉纤维的吸湿性显著优于普通棉纤维,可有效减少面料中棉纤维的占比,提高聚酯纤维的占比,从而使得面料的吸湿性和速干性能够同时达到较好标准。(The invention belongs to the technical field of textile products, and particularly discloses a polyester fiber and cotton fiber blended fabric and a preparation process thereof. The fabric is formed by blending polyester fibers and modified cotton fibers, and the preparation process of the fabric comprises the following steps: (1) preparing modified cotton fibers: adding a modifier, a penetrating agent and a catalyst into water to prepare a treatment solution, soaking cotton fibers in the treatment solution, taking out the cotton fibers, and pre-drying, baking, cleaning and drying the cotton fibers to obtain modified cotton fibers; (2) uniformly mixing polyester fibers and modified cotton fibers to obtain mixed fibers; (3) and spinning the mixed fibers into the fabric. In the invention, the hygroscopicity of the modified cotton fiber is obviously better than that of the common cotton fiber, the proportion of the cotton fiber in the fabric can be effectively reduced, and the proportion of the polyester fiber is improved, so that the hygroscopicity and the quick-drying property of the fabric can simultaneously reach better standards.)

1. The polyester fiber and cotton fiber blended fabric is characterized by being formed by blending polyester fibers and modified cotton fibers, wherein the mass ratio of the polyester fibers to the modified cotton fibers is 8-10: 1; the modified cotton fiber is prepared from the following raw materials: the modified cotton fiber comprises cotton fibers, a modifier, a penetrating agent and a catalyst, wherein the modifier comprises waterborne polyurethane and chitosan.

2. The polyester fiber and cotton fiber blended fabric according to claim 1, characterized in that: the penetrating agent is fatty alcohol-polyoxyethylene ether or polyoxyethylene linear alkyl ether, and the catalyst is magnesium chloride or barium chloride or sodium hypophosphite or tartaric acid.

3. A process for preparing a polyester fiber and cotton fiber blended fabric according to claim 1 or 2, which is characterized in that: the method comprises the following steps: .

S1, preparing modified cotton fibers: adding a modifier, a penetrating agent and a catalyst into water to prepare a treatment solution, soaking cotton fibers in the treatment solution, taking out the cotton fibers, and pre-drying, baking, cleaning and drying the cotton fibers to obtain modified cotton fibers;

s2, fiber blending: uniformly mixing polyester fibers and modified cotton fibers to obtain mixed fibers;

s3, spinning: and weaving the mixed fibers in the step S2 into a fabric.

4. The preparation process of the polyester fiber and cotton fiber blended fabric according to claim 3, characterized in that: in the treatment liquid of the step S1, the concentration of the aqueous polyurethane is 90-110 g/L, the concentration of the chitosan is 5-10 g/L, the concentration of the penetrating agent is 9-12 mL/L, and the concentration of the catalyst is 4-8 g/L.

5. The preparation process of the polyester fiber and cotton fiber blended fabric according to claim 3, characterized in that: after step S3, the method further includes: .

S4, soft finishing: and (5) soaking the fabric obtained in the step (S3) in the softening liquid, fishing out, baking, cleaning and drying to obtain the finished fabric.

6. The preparation process of the polyester fiber and cotton fiber blended fabric according to claim 5, characterized in that: in step S1, the pre-baking temperature is 80-85 ℃, the pre-baking time is 3-4 min, in step S1 and step S4, the baking temperature is 150-170 ℃, and the baking time is 2-5 min.

7. The preparation process of the polyester fiber and cotton fiber blended fabric according to claim 5, characterized in that: in step S4, the softening liquid is prepared by adding a softening agent into water, wherein the softening agent is an organosilicon softening agent.

8. The preparation process of the polyester fiber and cotton fiber blended fabric according to claim 7, characterized in that: the concentration of the softening agent is 9-12 mL/L.

9. The preparation process of the polyester fiber and cotton fiber blended fabric according to claim 8, characterized in that: the temperature of the softening liquid is 30-45 ℃.

10. The preparation process of the polyester fiber and cotton fiber blended fabric according to claim 5, characterized in that: in step S1, the immersion time of the cotton fiber in the treatment liquid is 1-3 h; in step S4, the fabric is soaked in the softening liquid for 0.5-1 h.

Technical Field

The invention relates to the technical field of textile products, in particular to a polyester fiber and cotton fiber blended fabric and a preparation process thereof.

Background

The polyester fiber is a synthetic fiber obtained by spinning polyester formed by polycondensation of organic dibasic acid and dihydric alcohol. The polyester fiber has excellent crease resistance, elasticity and dimensional stability, good strength and electrical insulation, sunlight resistance, mildew and moth resistance, better chemical reagent resistance and high cost performance, so the polyester fiber is widely applied to the non-clothing fields of clothing fabrics, home textiles and the like.

However, polyester fibers have disadvantages of poor moisture absorption and poor hand feeling as compared with natural fibers. In order to improve the moisture absorption of the polyester fiber fabric and make the polyester fiber fabric have good moisture absorption, natural fibers with good moisture absorption, such as cotton fibers and hemp fibers, are usually blended with the polyester fibers. However, the quick-drying property of the polyester fiber fabric mixed with the cotton fiber is adversely affected, and the quick-drying property is adversely affected as the amount of the cotton fiber is increased, that is, the time required for the fabric to dry after absorbing moisture is increased. Therefore, when the scheme of improving the moisture absorption of the polyester fiber fabric by mixing the cotton fibers is adopted, the quick drying property of the fabric needs to be considered, so that the moisture absorption property and the quick drying property of the fabric are difficult to achieve better standards simultaneously, and the application range of the fabric is limited.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a polyester fiber and cotton fiber blended fabric and a preparation process thereof, which are used for solving the problem that the moisture absorption and quick drying of the polyester fiber and cotton fiber blended fabric in the prior art are difficult to achieve better standards simultaneously.

In order to achieve the purpose and other related purposes, the invention provides a polyester fiber and cotton fiber blended fabric which is formed by blending polyester fibers and modified cotton fibers, wherein the mass ratio of the polyester fibers to the modified cotton fibers is 8-10: 1; the modified cotton fiber is prepared from the following raw materials: the modified cotton fiber comprises cotton fibers, a modifier, a penetrating agent and a catalyst, wherein the modifier comprises waterborne polyurethane and chitosan.

The invention also provides a preparation process of the polyester fiber and cotton fiber blended fabric, which comprises the following steps:

s1, preparing modified cotton fibers: adding a modifier, a penetrating agent and a catalyst into water to prepare a treatment solution, soaking cotton fibers in the treatment solution, taking out the cotton fibers, and pre-drying, baking, cleaning and drying the cotton fibers to obtain modified cotton fibers;

s2, fiber blending: uniformly mixing polyester fibers and modified cotton fibers to obtain mixed fibers;

s3, spinning: and weaving the mixed fibers in the step S2 into a fabric.

Optionally, the penetrating agent is fatty alcohol-polyoxyethylene ether or polyoxyethylene linear alkyl ether, and the catalyst is magnesium chloride or barium chloride or sodium hypophosphite or tartaric acid.

Optionally, in the treatment solution of step S1, the concentration of the aqueous polyurethane is 90-110 g/L, the concentration of the chitosan is 5-10 g/L, the concentration of the penetrating agent is 9-12 mL/L, and the concentration of the catalyst is 4-8 g/L.

Optionally, after step S3, the method further includes:

s4, soft finishing: and (5) soaking the fabric obtained in the step (S3) in the softening liquid, fishing out, baking, cleaning and drying to obtain the finished fabric.

Optionally, in step S1, the temperature of the pre-baking is 80-85 ℃, the time period of the pre-baking is 3-4 min, in step S1 and step S4, the temperature of the baking is 150-170 ℃, and the time period of the baking is 2-5 min.

Optionally, in step S4, the softening liquid is prepared by adding a softening agent into water, where the softening agent is a silicone softening agent.

Optionally, the concentration of the softening agent is 9-12 mL/L.

Optionally, the temperature of the softening liquid is 30-45 ℃.

Optionally, in step S1, the immersion time of the cotton fibers in the treatment liquid is 1-3 h; in step S4, the fabric is soaked in the softening liquid for 0.5-1 h.

As mentioned above, the polyester fiber and cotton fiber blended fabric and the preparation process thereof have the following beneficial effects: according to the invention, the fabric is formed by blending the polyester fiber and the modified cotton fiber, wherein the modifier for modifying the cotton fiber comprises the aqueous polyurethane and chitosan, under the catalytic action of the catalyst, the aqueous polyurethane and partial hydroxyl groups of the cotton fiber are subjected to a crosslinking reaction, the deformation of fiber macromolecules is reduced, the original hydrogen bond structure in the cotton fiber is stabilized, the possibility of generating new hydrogen bonds due to molecular chain slippage is reduced, and the deformation recovery capability of the cotton fiber is improved, so that the wrinkle resistance of the cotton fiber is improved, the wrinkle resistance of the polyester fiber fabric mixed with the modified cotton fiber is not affected, and the fabric still keeps good wrinkle resistance.

Meanwhile, chitosan is fixed on the cotton fibers, and hydroxyl groups of the chitosan and hydroxyl groups of the cotton fibers form a plurality of intermolecular hydrogen bonds, so that the number of the hydroxyl groups of the modified cotton fibers is increased compared with that of the cotton fibers, and then, after the number of the hydrophilic hydroxyl groups is increased, the hygroscopicity of the modified cotton fibers is improved. Therefore, compared with common cotton fibers, the modified cotton fibers are mixed in the polyester fibers in a smaller amount, so that the fabric has better moisture absorption and has smaller influence on the quick drying property of the fabric. In other words, the polyester fiber and cotton fiber blended fabric has good hygroscopicity and good quick-drying property, so that the hygroscopicity and the quick-drying property of the fabric reach good standards simultaneously.

In addition, the fabric after soft finishing has soft hand feeling and is comfortable to use.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

The invention provides a polyester fiber and cotton fiber blended fabric which is formed by blending polyester fibers and modified cotton fibers, wherein the mass ratio of the polyester fibers to the modified cotton fibers is 8-10: 1. The modified cotton fiber is prepared from the following raw materials: the cotton fiber modified polyurethane foam material comprises cotton fibers, a modifier, a penetrating agent and a catalyst, wherein the modifier comprises waterborne polyurethane and chitosan, the penetrating agent is fatty alcohol-polyoxyethylene ether or polyoxyethylene linear alkyl ether, and the catalyst is magnesium chloride or barium chloride or sodium hypophosphite or tartaric acid.

The invention also provides a preparation process of the polyester fiber and cotton fiber blended fabric, which comprises the following steps

S1, preparing modified cotton fibers: adding modifier, penetrant and catalyst into water to prepare treating liquid. In the treatment liquid, the concentration of the aqueous polyurethane is 90-110 g/L, the concentration of the chitosan is 5-10 g/L, the concentration of the penetrating agent is 9-12 mL/L, and the concentration of the catalyst is 4-8 g/L. And soaking the cotton fibers in the treatment solution for 1-3 h, taking out, and pre-drying, baking, cleaning and drying to obtain the modified cotton fibers. Wherein the pre-drying temperature is 80-85 ℃, and the pre-drying time is 3-4 min; the baking temperature is 150-170 ℃, and the baking time is 2-5 min; when cleaning, firstly cleaning with warm water of 50 ℃ for 5min, and then cleaning with normal temperature water for 5 min; finally drying at 80 ℃ to constant weight.

S2, fiber blending: and (3) uniformly mixing the polyester fiber and the modified cotton fiber to obtain the mixed fiber.

S3, spinning: and weaving the mixed fibers in the step S2 into a fabric.

S4, soft finishing: and (5) soaking the fabric obtained in the step (S3) in a softening liquid for 0.5-1 h, wherein the temperature of the softening liquid is 30-45 ℃, the softening liquid is prepared by adding a softening agent into water, the softening agent is an organic silicon softening agent, and the concentration of the softening agent is 9-12 mL/L. And (4) fishing out after dipping, and baking, cleaning and drying to obtain the finished fabric. Wherein the baking temperature is 150-170 ℃, and the baking time is 2-5 min; when cleaning, firstly cleaning with warm water of 50 ℃ for 5min, and then cleaning with normal temperature water for 5 min; finally drying at 80 ℃ to constant weight.

The present invention will be described in detail with reference to the following specific examples. It should also be understood that the following examples are illustrative only and are not to be construed as limiting the scope of the invention, and that numerous insubstantial modifications and adaptations of the invention described above will occur to those skilled in the art. The specific process parameters and the like of the following examples are also only one example of suitable ranges, i.e., those skilled in the art can select the appropriate ranges through the description herein, and are not limited to the specific values exemplified below.

Example 1

A preparation process of a polyester fiber and cotton fiber blended fabric comprises the following steps:

s1, preparing modified cotton fibers: adding a modifier, a penetrating agent and a catalyst into water to prepare a treatment solution, wherein the modifier comprises waterborne polyurethane and chitosan, the penetrating agent is fatty alcohol-polyoxyethylene ether, and the catalyst is magnesium chloride. In the treatment liquid, the concentration of the aqueous polyurethane is 100g/L, the concentration of the chitosan is 8g/L, the concentration of the penetrating agent is 11mL/L, and the concentration of the catalyst is 6 g/L. Soaking cotton fiber in the treatment solution for 2h, taking out, pre-baking at 80 deg.C for 5min, baking at 160 deg.C for 2min, and cleaning with 50 deg.C warm water for 5min, and then normal temperature water for 5 min; and finally drying at 80 ℃ to constant weight to obtain the modified cotton fiber.

S2, fiber blending: and mixing the polyester fiber and the modified cotton fiber according to the mass ratio of 8:1, and uniformly mixing to obtain the mixed fiber.

S3, spinning: and weaving the mixed fibers in the step S2 into a fabric.

S4, soft finishing: and (5) soaking the fabric obtained in the step (S4) in a softening liquid for 1 hour, wherein the temperature of the softening liquid is 30 ℃, the softening liquid is prepared by adding a softening agent into water, the softening agent is an organic silicon softening agent, and the concentration of the softening agent is 10 mL/L. Soaking the fabric, taking out, baking at 160 deg.C for 2min, and cleaning with 50 deg.C warm water for 5min and then with normal temperature water for 5 min; and finally, drying at 80 ℃ to constant weight to obtain the finished fabric.

Examples 2 to 3 are different from example 1 in that: the concentrations of the aqueous polyurethane and chitosan in the treatment solution were different, see table 1 for details.

Example 4 differs from example 1 in that: the mass ratio of the polyester fiber to the modified cotton fiber is 10: 1.

Example 5 differs from example 1 in that: the mass ratio of the polyester fiber to the modified cotton fiber is 9: 1.

Comparative example 1

The polyester fiber and the common cotton fiber (unmodified cotton fiber) are uniformly mixed according to the mass ratio of 8:1 to obtain mixed fiber, the mixed fiber is woven into fabric, and the fabric is subjected to soft finishing, wherein the soft finishing is the same as the soft finishing step in the embodiment 1.

Comparative example 2 differs from comparative example 1 in that: the mass ratio of the polyester fiber to the common cotton fiber is 10: 1.

TABLE 1 tables showing the concentrations of aqueous polyurethane and chitosan in the treatment solutions of examples 1 to 3

	Example 1	Example 2	Example 3
				Waterborne polyurethane (g/L)	100	90	110
Chitosan (g/L)	8	5	10

The fabrics of examples 1 to 5 and comparative examples 1 to 2 were subjected to performance tests, and the fabrics of each example and each comparative example were subjected to moisture absorption and quick drying tests according to the methods described in GB/T21655.1-2008, and the test results are shown in table 2.

TABLE 2 Performance test tables for examples 1 to 5 and comparative examples 1 to 2

As can be seen from Table 2, the water absorption of examples 1 to 5 is between 312% and 327%, while the water absorption of comparative examples 1 to 2 is 262% and 243%, respectively; the drip diffusion times of examples 1 to 5 were between 1.9s and 2.2s, while the drip diffusion times of comparative examples 1 to 2 were 2.7s and 2.9s, respectively; the wicking heights of examples 1-5 were between 120mm and 128mm, while those of comparative examples 1-2 were 112mm and 109mm, respectively. It is clear from this that the hygroscopicity of examples 1 to 5 is superior to that of comparative examples 1 to 2.

Secondly, the evaporation rates of the examples 1 to 5 are between 0.32g/h and 0.35g/h, while the evaporation rates of the comparative examples 1 to 2 are 0.30g/h and 0.31g/h respectively; examples 1 to 5 had a moisture permeability of 11100 g/(m)²D) -11600 g/h, and the moisture permeability of the comparative examples 1-2 is 10800 g/(m)²·d)～10960g/(m²D). It is apparent from this that the quick-drying property of examples 1 to 5 is superior to that of comparative examples 1 to 2.

Comparing example 1 with comparative example 1 and example 4 with comparative example 2, with the difference that example 1 and example 4 are modified cotton fibers and comparative example 1 and comparative example 2 are ordinary cotton fibers, it can be seen from the data presented in table 2 that the hygroscopicity of example 1 and example 4 is significantly better than that of comparative example 1 and comparative example 2, and the quick-drying property of example 1 and example 4 is slightly better than that of comparative example 1 and comparative example 2.

In conclusion, the fabric formed by mixing the modified cotton fibers and the polyester fibers and then spinning has good hygroscopicity and good quick-drying property, and the problem that the hygroscopicity and the quick-drying property of the polyester fiber and cotton fiber blended fabric cannot reach good standards simultaneously is solved.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.