WO2019109599A1

WO2019109599A1 - Method of producing towel with long-lasting softness

Info

Publication number: WO2019109599A1
Application number: PCT/CN2018/087820
Authority: WO
Inventors: 王红星
Original assignee: 滨州亚光家纺有限公司
Priority date: 2017-12-07
Filing date: 2018-05-22
Publication date: 2019-06-13
Also published as: CN108588972A

Abstract

The present invention relates to the field of textiles, and more specifically relates to a method of producing a towel with long-lasting softness. The method comprises the following processes: yarn spinning, water treatment, bleaching processing, and after treatment. A towel produced by the method remains soft or even has enhanced softness after being washed several times with water, and is quick drying and highly water absorbent.

Description

Method for producing long-lasting soft towel

The invention relates to the field of textiles, in particular to a method for producing a durable soft towel.

With the continuous development of the social economy, consumers are increasingly demanding daily consumer goods such as towels. As a towel product for daily necessities, its bulkiness, softness and water absorption properties are indispensable.

But now the towel products are usually treated with chemical auxiliaries during the post-treatment process to give the towels the desired bulkiness and softness, but the softness of such towels is not long-lasting and will change after repeated washings. It has to be dry, hard, and lose its use value.

Summary of the invention

In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a method for producing a durable soft towel, by which the produced towel can maintain or even enhance the softness of the towel after repeated washing. And has a long-lasting fast-drying, hydrophilic function.

A method for producing a durable soft towel, the technical solution mainly includes spinning, water treatment, bleaching process treatment, and finishing several processes, the specific steps are as follows:

1) Spinning: 10-90% of the coarse yarn and 10-90% of the fine yarn by weight percentage; the coarse yarn and the fine yarn are spun and twisted, and the obtained yarn twist coefficient is 30 ～340;

Among them, the thickness and material of the coarse and fine yarns are different, the coarse yarn is natural fiber, or natural fiber blended, or the blend of natural fiber and chemical fiber; the fine yarn used is heat shrinkable chemical fiber filament , or a chemical fiber short fiber having heat shrinkage property, or a blend of chemical fiber having heat shrinkage property and other fibers; wherein the hot shrinkage of the coarse yarn is 0-10%, and the hot water shrinkage of the fine yarn is 0. -60%;

2) Weaving: the yarn obtained in the step 1) is used as a loop yarn, and is woven on an air jet towel loom or a rapier towel loom; the ground warp and weft yarn are pure cotton yarn or cotton fiber and other fibers (such as polyester staple fiber). Blended yarn;

3) Refining and pre-shrinking treatment: the specific process temperature is 50-85 ° C, and the time is 30-60 minutes. In the hot water treatment, 3-10 g/l of penetrant is added to the water bath, and the penetrant is a prior art such as a penetrant T/JFC or the like. The method utilizes the characteristics that the heat shrinkage of the chemical fiber filament is stronger than that of the coarse yarn, so that the towel loop has a certain elasticity, and the towel has a long-lasting soft effect;

4) High-temperature bleaching: According to the processing needs, the fabric can be bleached and treated; the specific process parameters can be: adding 32% of ionic membrane liquid alkali in water: 3-10g/l, concentration of 27.5% hydrogen peroxide: 3 -15 g/l, hydrogen peroxide stabilizer: 0.5 g/l, refining agent JN-98: 1-3 g/l, treated at 98 ° C for 60 min.

It is also possible to replace step 4) with step 3). After the end of the process, a polyester degreaser JL-308-A: 3 g/l, a high concentration refining agent: JN-98: 2 g/l, and 98 ° C for 30 min are added.

The towel prepared according to the above scheme is treated by high-temperature boiling water, the chemical fiber filament is shrunk under high temperature conditions, and the oil agent in the chemical fiber filament or the yarn is removed to ensure better permeability and water absorption of the product.

This process is bleached and scoured. The first is to remove the water-repellent substances on cotton fibers or other natural fibers to enhance the hydrophilic properties of the products. The second is to increase the whiteness of the fibers and create basic conditions for dyeing.

5) Finishing: soft finishing with hydrophilic softener; the specific process can be DT530 softener, the dosage is 3%-12%, and treated at 35 °C for 30min. The use of a hydrophilic softener is to ensure that the hydrophilic properties of the product are not affected.

Other steps of the present invention may be implemented by using the prior art, and are not described herein again.

The invention solves the disadvantages of drying and hardening of the existing towel after repeated washing, thereby prolonging the comfortable feeling of the towel.

Compared to the prior art, the products produced by the method of the invention have the following characteristics:

1. The product is fluffy and the appearance is full and thick.

2. The product has good water absorption performance.

3. The product has excellent washing resistance and maintains a soft hand after repeated washing.

Detailed ways

The above content of the present invention will be further described in detail by way of specific examples of the present invention, but it should not be understood that the scope of the present invention is limited to the following examples. The techniques implemented based on the above-described contents of the present invention are all within the scope of the present invention, and unless otherwise specified, the following embodiments are carried out using conventional prior art. The amount of the reagents involved in the present invention is measured by the volume of water.

Example 1

A method for producing a durable soft towel, the specific process is:

1) Spinning 14s of pure cotton yarn with pure cotton, and then heat-shrinking the filaments of 60s or more. Wherein, the hot water shrinkage of the coarse yarn is 2-10%, and the hot water shrinkage of the fine yarn is 20-60%;

The coarse yarn and the fine yarn are collinear, and are twisted and formed into a yarn having a twist coefficient of 30 to 340. The coarse yarn occupies 10% of the total weight of the yarn, and the fine yarn occupies the yarn. 90% of the total weight;

2) weaving, the yarn produced by the above method 1) is used as a loop yarn, and the pure cotton yarn is used for weaving the ground warp and the weft yarn on the air jet towel loom;

3) refining pre-shrinkage treatment, specifically treating the fabric with hot water of 85-95 ° C for 30 minutes;

4) High temperature bleaching, ionic membrane liquid alkali with a mass concentration of 32%: 3-10 g/l, hydrogen peroxide at a concentration of 27.5%: 3-15 g/l, hydrogen peroxide stabilizer: 0.5 g/l, refining agent JN-98: 1- 3 g / l, 98 ° C treatment for 60 min.

5) Finishing: soft finishing with hydrophilic softener, the specific process is softener DT530 using 12%, 35 °C for 30min.

Other processes and parameters used in this embodiment are the same as those of the conventional towel in the prior art, and will not be described herein.

Example 2

A method for producing a durable soft towel, the specific process is:

1) Spinning: A coarse yarn of 13s is spun in pure cotton, and then the filaments of chemical fiber having a heat-shrinking property of 60s or more are combined. Wherein, the hot water shrinkage of the coarse yarn is 0-10%, and the hot water shrinkage of the fine yarn is 0-40%;

The coarse yarn and the fine yarn are collinear, and are twisted and formed into a yarn having a twist coefficient of 30 to 200. The coarse yarn occupies 90% of the total weight of the yarn, and the fine yarn occupies the yarn. 10% of the total weight;

2) Weaving, the yarn produced by the above method 1) is used as a loop yarn, and the blended yarn of pure cotton yarn and polyester staple fiber is used for weaving on the air jet towel loom or rapier towel loom;

4) High temperature bleaching, ionic membrane liquid alkali with a mass concentration of 32%: 3-10 g/l; hydrogen peroxide at a concentration of 27.5%: 3-15 g/l, hydrogen peroxide stabilizer: 0.5 g/l, refining agent JN-98: 1- 3 g / l, 98 ° C treatment for 60 min.

5) Finishing, using a soft softener to softly finish, the specific process is 3% of the softener DT530, 35 ° C for 30min.

Example 3

A method for producing a durable soft towel, the specific process is:

1) Spinning: A coarse yarn of 13s is spun in pure cotton, and then the filaments of chemical fiber having a heat-shrinking property of 60s or more are combined. Wherein, the hot water shrinkage of the coarse yarn is 0-10%, and the hot water shrinkage of the fine yarn is 30-60%;

The coarse yarn and the fine yarn are collinear, and are twisted and formed into a yarn having a twist coefficient of 100 to 340. The coarse yarn occupies 50% of the total weight of the yarn, and the fine yarn occupies the yarn. 50% of the total weight;

2) weaving, the yarn produced by the above method 1) is used as a loop yarn, and the pure cotton yarn is used for weaving on the rapier towel loom;

4) High temperature bleaching, specifically using ionic membrane liquid alkali with a mass concentration of 32%: 3-10 g/l; hydrogen peroxide at a concentration of 27.5%: 3-15 g/l, hydrogen peroxide stabilizer: 0.5 g/l, refining agent JN-98 : 1-3 g / l, 98 ° C treatment for 60 min.

5) Finishing, softening and finishing with hydrophilic softener, the specific process is 6% of softener DT530, and treated at 35 °C for 30 min.

The towel made by the above embodiments has a resilience, and does not cause a flattened feeling of the loop due to the extrusion of the product. Even after long-time transportation and extrusion, it is still elastic and fluffy; and the ordinary soft towel is just dried. The back feel is elastic and fluffy, but the resilience disappears after being squeezed, especially during transportation, the products are squeezed for a long time. When the container is sold, the elasticity and bulkiness of the product basically disappear, which can be seen by the present invention. The method can significantly improve the drawbacks of the existing ordinary towels, achieving better soft and lasting performance.

Claims

1. A method for producing a durable soft towel comprising spinning, weaving, water treatment, high temperature bleaching, and finishing step, characterized in that: the spinning, weaving, and water treatment processes are as follows: 1) spinning : According to the weight percentage, the coarse yarn is 10-90%, the fine yarn is 10-90%; the coarse yarn and the fine yarn are spun and twisted, and the obtained yarn has a twist coefficient of 30-340; ) weaving: using the yarn obtained in step 1) as a loop yarn, weaving on an air jet towel loom or rapier towel loom; 3) refining pre-shrinkage treatment: specific process temperature is 50-85 ° C, time is 30-60 In the hot water treatment, 3-10 g / l of penetrant is added to the water bath; wherein the coarse yarn according to step 1) is a blend of natural fibers or natural fibers or a blend of natural fibers and chemical fibers; The yarn is a heat-shrinkable chemical fiber filament or a chemical fiber short fiber having heat shrinkage property or a blend of chemical fiber having heat shrinkage property and other fibers; the hot yarn shrinkage ratio of the coarse yarn is 0-10%, fine The hot water shrinkage of the yarn is 0-60%.

2. A method of producing a durable soft towel according to claim 1, wherein the ground warp and weft yarns of step 2) are pure cotton yarn or a blended yarn of cotton fibers and other fibers.

A method for producing a durable soft towel according to claim 1, further comprising: after the step 3), adding a polyester degreaser JL-308-A: 3 g/l, high Concentrated refining agent: JN-98: 2 g/l, treated at 98 ° C for 30 min.

The method for producing a durable soft towel according to claim 1, further comprising: after the step 3), performing step 4) high temperature bleaching, specifically: adding a mass concentration of 32 to the water. % ionic membrane liquid alkali: 3-10g / l, concentration of 27.5% hydrogen peroxide: 3-15g / l, hydrogen peroxide stabilizer: 0.5g / l, refining agent JN-98: 1-3g / l, 98 ° C treatment 60min .

The method for producing a durable soft towel according to claim 1, characterized in that: the finishing is specifically using a hydrophilic softener to softly arrange; the specific process may be using DT530 softener, and the amount of use Treated at 3%-12% for 30 min at 35 °C.