CN117552136A - Preparation method of cowhide fiber yarn and cowhide fiber fabric - Google Patents

Abstract

The invention discloses a preparation method of cowhide fiber yarns and cowhide fiber fabrics, wherein the preparation method comprises the following steps: step (1), mixing and spinning the cowhide fiber and other fibers into cowhide fiber rough yarns; step (2), roughening the cowhide fiber rough yarn to remove cowhide fiber particles and short fibers in the cowhide fiber rough yarn to obtain a cowhide fiber yarn semi-finished product A; step (3), dyeing, sizing and carrying out one-bath treatment on the semi-finished cowhide fiber yarn A, and then drying to obtain a semi-finished cowhide fiber yarn B; and (4) coating other yarns on the semi-finished product B of the cowhide fiber yarns to obtain the cowhide fiber yarns. The cowhide fiber yarn prepared by the method has the advantages of smooth surface, good wear resistance, uniform color, good color fastness and high yarn strength (the breaking strength can reach more than 6N).

Description

Preparation method of cowhide fiber yarn and cowhide fiber fabric

Technical field

The invention belongs to the field of textiles, and particularly relates to a preparation method of cowhide fiber yarn and cowhide fiber fabric.

Background technique

With the improvement of people's living standards, consumers are beginning to pursue purely natural fabrics again. Cowhide fiber is the fifth largest natural fiber after cotton, linen, wool and silk. Its fineness is one-third of that of wool. The length of cowhide fiber is 15-30mm and it is a short fiber. The collagen content of fiber yarns made from cowhide fiber can reach 83%, and it has the advantages of high toughness and strong thermal stability. The same type of cotton, wool, rabbit hair and other fiber yarns can only reach 45%.

However, ordinary cowhide fiber yarn also has disadvantages. Due to the different lengths of cowhide fibers and the presence of hard particles in the fibers, there is a large amount of hairiness and particles on the surface of the cowhide fiber yarns, which reduces the wear resistance and aesthetics. Moreover, the surface smoothness and yarn strength of ordinary cowhide fiber yarns cannot meet the requirements of high-end fabrics. The present invention is based on this research.

Contents of the invention

The object of the present invention is to provide a method for preparing cowhide fiber yarn and a cowhide fiber fabric. The cowhide fiber yarn prepared by the method of the present invention has a smooth surface, good wear resistance, uniform color, good color fastness, and high yarn strength. (Breaking strength can reach >6N).

In order to achieve the above objects, the present invention adopts the following technical solutions:

The invention provides a method for preparing cowhide fiber yarn, which includes the following steps:

Step (1), mix cowhide fiber with other fibers and spin into cowhide fiber roving;

Step (2), subject the cowhide fiber roving to a sanding treatment to remove cowhide fiber particles and short fibers to obtain cowhide fiber yarn semi-finished product A;

Step (3), after dyeing and sizing the cowhide fiber yarn semi-finished product A in the same bath, drying is performed to obtain the cowhide fiber yarn semi-finished product B;

In step (4), the cowhide fiber yarn semi-finished product B is wrapped with other yarns to obtain the cowhide fiber yarn. The inner core of the cowhide fiber yarn is cowhide fiber yarn, and the outer yarn is other yarns.

In the technical solution of the present invention, in step (1), the other fibers are one or more of cotton, viscose, wool, nylon, and polyester, the cowhide fiber accounts for 20% to 80wt%, and the remainder is other fiber.

In the technical solution of the present invention, in step (3), the impregnation liquid in the impregnation tank used for dyeing and sizing is 1% to 50% of water-based polyurethane or water-based acrylic, 0.1-1% of silicone hand feel agent, and 0.5% of dye. ~10%, the rest is water.

In the technical solution of the present invention, the 100% modulus of the water-based polyurethane or water-based acrylic is 0.1 MPa to 5 MPa, and the residence time of the yarn in the impregnation liquid is 2 seconds to 10 seconds.

In the technical solution of the present invention, in step (4), the other yarns are short fiber yarns or filament yarns. Preferably, the short fiber yarn can be cotton yarn, viscose yarn or wool yarn, etc., and the filament yarn can be polyester filament, nylon filament, spandex yarn, etc.

The invention also provides a cowhide fiber fabric, which is made from the cowhide fiber yarn prepared by the above preparation method. The cowhide fiber fabrics include denim fabrics and sweatshirt fabrics.

The beneficial effects of the present invention are that the method for preparing cowhide fiber yarns of the present invention can improve the surface smoothness and at the same time impart color to the cowhide fiber yarns. Through the yarn sanding process, surface hairiness and particles are removed; through sizing and dyeing in the same bath, the yarn surface smoothness and color are improved at one time; through yarn coating, the yarn surface smoothness and wear resistance are further improved properties and yarn strength.

Detailed ways

In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described below with reference to specific embodiments. This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art, and the invention will be limited only by the claims.

The invention provides a method for preparing cowhide fiber yarn, which includes the following steps:

Step (1): Mix cowhide fiber with other fibers and spin them into cowhide fiber roving; the other fibers are one or more of cotton, viscose, wool, nylon, and polyester, and the cowhide fiber accounts for 20% to 80wt%. The remainder is other fibers.

Step (2), subject the cowhide fiber roving to a sanding treatment to remove cowhide fiber particles and short fibers to obtain cowhide fiber yarn semi-finished product A;

In step (3), the cowhide fiber yarn semi-finished product A is dyed and sized in the same bath, and then dried to obtain the cowhide fiber yarn semi-finished product B; the impregnation liquid in the impregnation tank used for dyeing and sizing in the same bath is water-based polyurethane. Or water-based acrylic 1% to 50%, silicone hand agent 0.1 to 1%, dye 0.5% to 10%, and the rest is water.

Water-based polyurethane or acrylic is the main body of the sizing liquid. After drying, it forms a film and adheres to the surface of the yarn. It binds the short fibers and hairiness in the yarn and makes the yarn smooth and clean. The 100% modulus of water-based polyurethane or water-based acrylic is 0.1MPa ~ 5Mpa, ensuring that the yarn is soft after sizing. The yarn stays in the impregnation solution for 2 to 10 seconds to ensure that the sizing only adheres to the surface of the yarn, thus ensuring that the yarn is soft. After drying, the silicone handle agent is applied to the yarn surface or in the yarn to give the yarn a soft and smooth handle. The dyes used can be acid dyes, basic dyes, reactive dyes or metal complex dyes that can be used for dyeing. The dyes provide color to the yarn.

Water-based polyurethane optional 3458 (Yantai Wanhua Chemical Co., Ltd.), Impranil DLS (Shanghai Covestro) or XCW-3330 (Asahikawa Chemical), etc.; silicone hand feel agent can be selected from YC-SX (Yincheng Chemical Technology Co., Ltd.); BYK- 9565 (BYK Chemical) and so on; dyes can be selected from Qingdao Yuzhen Chemical series acid dyes.

In step (4), the cowhide fiber yarn semi-finished product B is wrapped with other yarns to obtain the cowhide fiber yarn. Other yarns are one or more of cotton yarn, viscose yarn, polyester filament, nylon filament, and spandex yarn.

The invention also provides a cowhide fiber fabric, which is made from the cowhide fiber yarn prepared by the above preparation method.

There are hairiness or hard particles in the cowhide fiber yarn of the present invention, which cannot be directly used in fabric production. The cowhide fiber yarn is sanded to remove surface short velvet and hard particles, and then the hairiness on the surface of the yarn is fixed through surface sizing. Forming cowhide fiber yarn.

The present invention uses water-resistant water-based polyurethane or water-based acrylic as the main body of the sizing, which has a soft hand feel and is water-resistant and washable after drying. When applied to the fabric, the fabric will not become rough again during use. The yarn dyeing and yarn sizing are carried out in the same bath. The color is more uniform and stable, and the dry and wet rubbing fastness is significantly improved. It is easy to operate and saves energy consumption.

The sized cowhide fiber yarn of the present invention further improves the surface finish of the yarn by coating other yarns.

Example 1

Make cowhide fiber fabric as follows:

In step (1), cowhide fiber is mixed with other fibers and spun into cowhide fiber roving; the other fibers are cotton and viscose, and the cowhide fiber accounts for 50wt%, the cotton accounts for 40wt%, and the viscose accounts for 10wt%.

Step (2), subject the cowhide fiber roving to a sanding treatment to remove cowhide fiber particles and short fibers to obtain cowhide fiber yarn semi-finished product A;

In step (3), the cowhide fiber yarn semi-finished product A is dyed and sized in the same bath, and then dried to obtain the cowhide fiber yarn semi-finished product B; the impregnation liquid in the impregnation tank used for dyeing and sizing in the same bath is water-based polyurethane. 50%, silicone feel agent 1%, dye 5%, water 44%. The yarn stays in the impregnation solution for 5 seconds.

In step (4), the cowhide fiber yarn semi-finished product B is wrapped with other yarns to obtain cowhide fiber yarn; the other yarns are cotton yarn and viscose yarn.

Step (5): Use the above-mentioned cowhide fiber yarn to produce sweatshirt fabric, and the weaving method is weft knitting or warp knitting.

Example 2

The specific implementation is the same as Example 1, except that in step (1), the proportion of cowhide fiber is 60wt%, the proportion of nylon is 20wt%, and the proportion of polyester is 20wt%.

Example 3

The specific implementation is the same as Example 1, except that in step (1), the proportion of cowhide fiber is 50wt%, the proportion of cotton is 30wt%, and the proportion of viscose is 20wt%. In step (5), the above-mentioned cowhide fiber yarn is used to produce denim fabric, and the weaving method is machine weaving.

Example 4

The specific implementation is the same as Example 1, except that in step (3), the impregnation liquid is 20% water-based polyurethane, 1% silicone hand agent, 10% dye, and 69% water.

Example 5

The specific implementation is the same as Example 1, except that in step (3), the yarn stays in the impregnation liquid for 8 seconds.

Example 6

The specific implementation is the same as Example 1, except that in step (4), other yarns are nylon filament and spandex yarn.

Comparative example 1

The specific implementation is the same as that of Embodiment 1, except that step (2) is omitted.

Comparative example 2

The specific implementation is the same as that of Embodiment 1, except that step (4) is omitted.

Comparative example 3

The specific implementation is the same as Example 1, except that in step (3), dyeing is performed first and then sizing is performed.

Comparative example 4

The specific implementation is the same as Example 1, except that in step (3), the impregnation liquid is commercially available textile sizing powder and dye, and the components of the textile sizing powder are starch, wax and synthetic resin.

Comparative example 5

Commercially available pure cotton sweatshirt fabric, Heilan Home model HNZWW3Y112A.

Comparative example 6

The commercially available sweatshirt fabric containing wool is Dances with Wolves model number 9550254305701.

Comparative example 7

Commercially available denim fabric, Heilan House model HKNAW3Y151A.

Performance Testing

1. Fabric moisture regain

The fabric moisture regain test was conducted on the fabrics in all examples and comparative examples in accordance with the test standard GB/T 9995-1997.

2. Antibacterial properties of fabrics

According to the test standard FZ/T 73023-2006 Antibacterial Knitted Fabrics (A), fabric antibacterial properties were tested on the fabrics in all examples and comparative examples. The antibacterial properties of the fabrics in Table 1 refer to the Staphylococcus aureus bacteriostatic rate.

3. Fabric resists pilling

According to the test standard GB/T 4802.2-2008 "Textile Pilling Test Modified Martindale Method", the fabrics in all examples and comparative examples were tested for fabric pilling resistance.

4. Fabric color fastness to wet rubbing

According to the test standard GB/T 3920-2013 "Test Method for Color Fastness of Textiles", the fabrics in all examples and comparative examples were tested for fabric wet rubbing fastness.

The test results are shown in Table 1:

Table 1

Obviously, the above-mentioned embodiments are only examples for clear explanation and are not intended to limit the implementation. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. An exhaustive list of all implementations is neither necessary nor possible. The obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims (7)

1. The preparation method of the cowhide fiber yarn is characterized by comprising the following steps of: the method comprises the following steps:

step (1), mixing and spinning the cowhide fiber and other fibers into cowhide fiber rough yarns;

step (2), roughening the cowhide fiber rough yarn to remove cowhide fiber particles and short fibers in the cowhide fiber rough yarn to obtain a cowhide fiber yarn semi-finished product A;

step (3), dyeing, sizing and carrying out one-bath treatment on the semi-finished cowhide fiber yarn A, and then drying to obtain a semi-finished cowhide fiber yarn B;

and (4) coating other yarns on the semi-finished product B of the cowhide fiber yarns to obtain the cowhide fiber yarns.

2. The method of manufacture of claim 1, wherein: in the step (1), the other fibers are one or more of cotton, viscose, wool, nylon and terylene, the proportion of the cowhide fibers is 20-80 wt%, and the rest is other fibers.

3. The method of manufacture of claim 1, wherein: in the step (3), the impregnating solution in the impregnating tank used in the same dyeing and sizing bath is 1-50wt% of aqueous polyurethane or aqueous acrylic acid, 0.1-1wt% of organosilicon handfeel agent, 0.5-10wt% of dye and the balance of water.

4. A method of preparation according to claim 3, characterized in that: the 100% modulus of the aqueous polyurethane or the aqueous acrylic acid is 0.1 MPa-5 MPa, and the residence time of the yarn in the impregnation liquid is 2-10 seconds.

5. The method of manufacture of claim 1, wherein: in the step (4), the other yarns are staple yarns or filament yarns.

6. The cowhide fiber fabric is characterized in that: the kraft fiber yarn produced by the method of any one of claims 1 to 5.

7. The kraft fiber fabric of claim 6, wherein: the cowhide fiber fabric comprises jean fabric and jean fabric.