CN114717715B - Waterproof and antifouling fabric and preparation method thereof - Google Patents

Abstract

The invention relates to a waterproof and anti-fouling fabric. The fabric is woven with plain or twill fabric threads. The monofilament diameter of the fabric thread is 80-120 μm and the gram weight is 385-445 g/m ² ; The fabric thread is blended with a core thread and an outer thread, and the outer thread is soaked with a perfluoro finishing agent and a cross-linking agent; the core thread includes 50 to 55% cotton, 20 to 25% nylon, 20 to 25% polyester and 3-5% moisture-conducting fiber, the outer strand includes 35-40% cotton, 20-30% wear-resistant polyester, 25-30% polyester-cotton and 5-10% linen, and the core monofilament The diameter is 60-70 μm, and the diameter of the outer outer wire monofilament is 17-21 μm; the outer surface of the fabric is sanded, and the surface of the fabric is sprayed with a waterproof glue layer through a spraying process. The present invention also designs a preparation method for the above-mentioned fabric. Through the combination of special materials and blending technology, the present invention makes the fabric water-resistant and anti-fouling on the outside, one-way breathable from the inside to the outside, and has better softness and comfort in contact with the skin.

Description

A kind of waterproof and antifouling fabric and preparation method thereof

Technical field

The invention relates to the technical field of textile materials, and in particular to a waterproof and antifouling fabric and a preparation method thereof.

Background technique

Traditional clothing fabrics are mainly made of cotton, linen, silk and other materials. The material of this type of fabric is purely natural, has better affinity with the human body, is more comfortable in contact with the skin, and is not prone to sensitization. As the market changes, people's requirements for clothing comfort and functionality continue to increase. It is difficult for traditional cotton and linen fabrics to adapt to the current market functional requirements. There is an increasing demand for waterproof and anti-fouling fabrics in existing clothing. For example, the fabrics of outdoor functional clothing, which has become very popular in recent years, are specially designed for the wearing scenarios of outdoor sports enthusiasts. The fabrics are required to have waterproof, anti-fouling, breathable and other functions. Another example is the thin down jackets that have become popular in recent years. The fabrics are designed to lock in the down, are generally very dense, and are usually coated. This type of down jacket generally cannot be washed at will. Once the coating is damaged, the down-locking function will be lost. This type of fabric usually also needs to be waterproof and anti-fouling.

There are two production methods for existing waterproof and antifouling fabrics. One is to impregnate the fabric with a waterproof finishing agent so that the waterproof agent adheres to the outer layer of the fabric. By selecting a finishing agent with waterproof and anti-fouling effects, the waterproof and anti-fouling effects can be achieved; the other is to coat the outer layer of the fabric. Waterproof and antifouling coatings can also achieve waterproof and antifouling effects.

Contents of the invention

Aiming at at least one technical problem existing in the prior art, the present invention provides a waterproof and anti-fouling fabric and a preparation method thereof. Through a combination of special materials and blending processes, the fabric is water-resistant and anti-fouling on the outside and outward on the inside. It can be breathable in one direction and has better softness and comfort in contact with the skin.

The technical solution of the present invention to solve the above technical problems is as follows: a waterproof and anti-fouling fabric, the fabric is woven from fabric threads in a plain or twill manner, and the monofilament diameter of the fabric threads is 80~120 μm, g Weighing 385~445g/ ^m2 ; the fabric thread is made of a blend of core thread and outer thread, and the outer thread is soaked with perfluoro finishing agent and cross-linking agent; the core thread includes 50~55% cotton, 20~25% nylon, 20~25% polyester and 3~5% moisture-conducting fiber. The outer cover includes 35~40% cotton, 20~30% wear-resistant polyester, 25~30% polyester cotton and 5~10% Linen, the diameter of the core single filament is 60~70 μm, and the diameter of the outer outer single filament is 17~21 μm; the outer surface of the fabric is sanded, and the surface of the fabric is sprayed with a waterproof glue layer through a spraying process.

On the basis of the above technical solution, the present invention can also make the following improvements.

Furthermore, the monofilament diameter of the fabric thread is 90~100 μm, and the weight is 420~425g/m ² .

Further, the core thread includes 52% cotton, 20~22% nylon, 23~24% polyester and 3~4% moisture-conducting fiber.

Further, the outer covering yarn includes 38% cotton, 24-26% wear-resistant polyester, 28-30% polyester-cotton and 6-8% linen.

Furthermore, the moisture-conducting fiber is made of polypropylene fiber.

Furthermore, the waterproof glue layer uses XF-5003 waterproof glue.

The present invention also designs a preparation method for the above-mentioned waterproof and anti-fouling fabric, which includes the following steps:

S1. Preparation of core wire: According to the proportion of core wire, short fiber raw materials are used, and the raw materials are picked, mixed, combed and anti-static treated to form a wire, and then the processed wire is treated with a softening finishing agent and then dehydrated. , the core wire is obtained after drying;

S2. Preparation of outer strands: According to the proportion of outer strands, short fiber raw materials are used, and the raw materials are processed into threads by catching cotton, blending cotton, combing and anti-static treatment, and then treating the processed threads with perfluorinated finishing agents and cross-linking agents. After soaking treatment, dehydration and drying, the outer wire is obtained;

S3. Prepare thread for fabric: blend the core thread and outer thread prepared in step S1 and step S2 in a ratio of 1 core thread to 3 to 6 outer threads, with the core thread inside and the outer thread wrapped outside. Threads for fabrics;

S4. Woven fabric: Plain or twill weaving method, the fabric is woven into fabric with threads, and the outer surface of the woven fabric is sanded;

S5. Finishing: Clean and finish the fabric woven in step S4 by using two water washings with one alkali washing in between, and then dehydrate and dry the fabrics;

S6. Spraying: Use spray spraying to evenly spray the waterproof glue on the surface of the fabric, and then wait for the sprayed fabric to dry naturally to produce waterproof and antifouling fabrics.

On the basis of the above technical solution, the present invention can also make the following improvements.

Further, in step S2, the infiltration time of the perfluoro finishing agent and cross-linking agent is controlled at 18 to 22 minutes.

Further, in the steps S1 and S2, the drying temperature after dehydration is controlled at 90~105°C, and the drying time is controlled at 3~5 min; in the step S5, the drying temperature is controlled at 80~85°C, and the drying time is controlled at 80~85°C. The time is controlled at 5~8 minutes.

Further, in the step S6, the time for spraying waterproof glue is controlled at 25~30 seconds.

The beneficial effects of the present invention are: the present invention adopts the method of wrapping and mixing, adopts special material design, prepares core yarn and outer yarn, blends the yarn for fabrics, and uses finishing agent for finishing in the spinning process, so that the yarns for fabrics have better properties. It has excellent water-repellent and anti-fouling properties, and at the same time can effectively avoid the decrease in waterproof and anti-fouling properties of the fabric due to wear and tear; the fabric of the invention is mainly cotton and has better affinity, and moisture-conducting materials are added to the core thread. fiber, so that the fabric has better moisture conduction and air permeability properties; the present invention performs a sanding treatment on the outer surface of the fabric and sprays waterproof glue to form a layer of waterproof and antifouling layer with a super-hydrophobic structure on the surface of the fabric, which can effectively Water-blocking and anti-fouling; the outer casing of the present invention has been treated with a waterproof and anti-fouling finishing agent, and can have good combination performance with the waterproof glue, and can effectively prevent the waterproof glue from falling off.

Detailed ways

The principles and features of the present invention are described below with reference to examples and comparative tests. The examples cited are only used to explain the present invention and are not intended to limit the scope of the present invention.

The invention designs a waterproof and anti-fouling fabric. The fabric is woven with plain or twill fabric threads. The monofilament diameter of the fabric thread is 80~120 μm and the weight is 385~445g/ ^m2. . Using the threads of the above sizes and using a specially designed weaving density, the woven fabric is very dense. When the surface is not coated with a waterproof coating, small, regular weaving gaps can be formed, which is very conducive to the production of super-hydrophobic fabrics. surface structure.

The fabric thread of the present invention is made of a blend of a core thread and an outer thread. The outer thread is impregnated with a perfluoro finishing agent and a cross-linking agent, while the core thread is not impregnated with a water-repellent or antifouling finishing agent. The core thread includes 50~55% cotton, 20~25% nylon, 20~25% polyester and 3~5% moisture-conducting fiber. The outer covering yarn includes 35~40% cotton, 20~30% wear-resistant polyester, 25~30% polyester cotton and 5~10% linen. The diameter of the core single wire is 60~70 μm, and the diameter of the outer outer wire single wire is 17~21 μm. The fabric thread of the present invention is spun in a blended manner in which the core thread is the main body and the outer thread is wrapped around the outside.

The outer surface layer of the fabric of the present invention is sanded, and the surface layer of the fabric is sprayed with a waterproof glue layer through a spraying process. The present invention prepares the waterproof glue layer by spraying waterproof glue instead of coating. The prepared waterproof glue layer does not form a film, which is beneficial to the breathability of the fabric. The surface density of the fabric of the present invention has been precisely designed, and the weaving gaps are regular and extremely small. After the sanding treatment, the sprayed waterproof glue droplets will adhere to the rough surface formed by sanding and penetrate into the sanded fiber mass. , eventually forming a regular waterproof glue particle layer composed of dense waterproof glue particles on the surface of the fabric. Due to the precise calculation of the weaving gaps of the fabric, the waterproof glue droplets are affected by surface tension during the drying process and form round-like flat glue particles, which reduces the size of the weaving gaps and eventually forms a superphobic surface. It has excellent waterproof and anti-fouling effects.

Since the outer strands have been soaked with perfluoro finishing agent and cross-linking agent, the outer strands and the waterproof glue have better bonding properties. At the same time, the sanding treatment can further increase the bonding strength. This design can make the waterproof The bonding strength between the glue and the fabric is greatly improved, which greatly improves the wear resistance of the fabric.

The specific preparation method of the waterproof and antifouling fabric of the present invention includes the following steps:

S1. Preparation of core wire: According to the proportion of core wire, short fiber raw materials are used. The raw materials are picked, mixed, combed and anti-static treated to form a wire. The processed wire is then treated with a softening finishing agent and then dehydrated. , the core wire is obtained after drying;

S2. Preparation of outer strands: According to the proportion of outer strands, short fiber raw materials are used, and the raw materials are processed into threads by catching cotton, blending cotton, combing and anti-static treatment, and then treating the processed threads with perfluorinated finishing agents and cross-linking agents. After soaking treatment, dehydration and drying, the outer wire is obtained;

S3. Prepare thread for fabric: blend the core thread and outer thread prepared in step S1 and step S2 in a ratio of 1 core thread to 3 to 6 outer threads, with the core thread inside and the outer thread wrapped outside. Threads for fabrics;

S4. Woven fabric: Plain or twill weaving method, the fabric is woven into fabric with threads, and the outer surface of the woven fabric is sanded;

S5. Finishing: Clean and finish the fabric woven in step S4 by using two water washings with one alkali washing in between, and then dehydrate and dry the fabrics;

S6. Spraying: Use spray spraying to evenly spray the waterproof glue on the surface of the fabric, and then wait for the sprayed fabric to dry naturally to produce waterproof and antifouling fabrics.

In the present invention, the moisture-conducting fiber is preferably polypropylene fiber.

Using the above preferred solution, not only has good moisture conductivity, but also can effectively enhance the strength of the core thread. Polypropylene fiber has excellent hydrophilicity. Adding a small amount, combined with the cotton in the core thread, can achieve excellent moisture absorption effects.

In the present invention, the waterproof glue layer preferably uses XF-5003 glue.

Using the above preferred solution, XF-5003 glue is an environmentally friendly, non-toxic water-based glue that can be prepared with water as the solvent to an appropriate viscosity for easy spraying. Moreover, the glue has excellent bonding performance with the waterproof outer cladding that has been treated with perfluoro finishing agent and cross-linking agent. The strength and wear resistance of the glue are also good.

The following are embodiments of the present invention

The various types of reagents used in the embodiments of the present invention are as follows:

Fluorinated emulsion finishing agent: DuPont's OLEOPHOBOL CP-R type perfluorinated finishing agent.

Cross-linking agent: Rongzheng Chemical KH-792 type.

Antistatic finishing agent: Changzhou Meisheng Biomaterials Co., Ltd. SN-6 type.

Waterproof glue: Daikin Company XF-5003 type.

Polypropylene fiber: Shandong Zhonglu Engineering Materials Co., Ltd. produces polypropylene short fiber.

Example 1

The fabric of this embodiment is prepared using the following steps:

S1. Core yarn preparation: According to the ratio of 50% cotton, 25% nylon, 20% polyester and 5% polypropylene fiber, weigh the above four short fibers, put them into the cotton picking machine, and then enter the cotton blending process. The cotton is mixed into rolls by machine, and then carded and combed by a carding machine to form a thread. The resulting thread is finished with an antistatic finishing agent, dehydrated, and then dried at 100°C for 5 minutes to finally obtain the core thread. The diameter of the prepared core wire is controlled at 60 μm.

S2. Preparation of outer yarn: According to the ratio of 35% cotton, 30% wear-resistant polyester, 25% polyester-cotton and 10% linen, weigh the above four short fibers and put them into the cotton picking machine for picking, and then enter The cotton is mixed into rolls by a cotton blending machine, and then carded and combed by a carding machine to form a thread. The resulting thread is soaked with a fluorine-containing emulsion finishing agent and cross-linking agent for 20 minutes, dehydrated, and then dried at 100°C. 5min, and finally the outer wire is obtained. The diameter of the prepared outer wire is controlled at 17 μm.

S3. Fabric thread preparation: The core thread and the outer thread are blended in a ratio of 1:3 to make a fabric thread with a diameter of 80 μm.

S4. Weaving fabric: Use plain weaving method to weave the fabric into fabric with thread, and the weaving density is controlled at 445g/m ² . After the weaving is completed, the surface of the fabric is sanded with a sanding roller.

S5. Fabric finishing: Wash the woven fabric for the first time at a water temperature of 60~65℃, and then dehydrate it after washing; then put the washed fabric into a 6~8% soda ash solution at a water temperature of 25~30℃ Wash with alkali, dehydrate again after alkali washing; finally, wash the fabric after alkali washing for a second time at a water temperature of 25~30°C, and dehydrate again after washing. The dehydrated fabric is dried at 80°C for 8 minutes.

S6. Spray glue: After laying the finished fabric flat, use spray-type spray equipment to spray mist waterproof glue on the outer surface of the fabric for 30 seconds. After spraying, the fabric is naturally dried in a flat state. After the fabric is completely dry and the waterproof glue is completely dried and solidified, the waterproof and antifouling fabric of this embodiment is obtained.

Example 2

The fabric of this embodiment is prepared using the following steps:

S1. Core yarn preparation: According to the ratio of 50% cotton, 25% nylon, 20% polyester and 5% polypropylene fiber, weigh the above four short fibers, put them into the cotton picking machine, and then enter the cotton blending process. The cotton is mixed into rolls by machine, and then carded and combed by a carding machine to form a thread. The resulting thread is finished with an antistatic finishing agent, dehydrated, and then dried at 100°C for 5 minutes to finally obtain the core thread. The diameter of the prepared core wire is controlled at 64 μm.

S2. Preparation of outer yarn: According to the ratio of 35% cotton, 30% wear-resistant polyester, 25% polyester-cotton and 10% linen, weigh the above four short fibers and put them into the cotton picking machine for picking, and then enter The cotton is mixed into rolls by a cotton blending machine, and then carded and combed by a carding machine to form a thread. The resulting thread is soaked with a fluorine-containing emulsion finishing agent and cross-linking agent for 20 minutes, dehydrated, and then dried at 95°C. 4min, the outer wire is finally obtained. The diameter of the prepared outer wire is controlled at 18 μm.

S3. Fabric thread preparation: The core thread and outer thread are blended with a ratio of 1:5, using a bag-blending method, to make a fabric thread with a diameter of 100 μm.

S4. Weaving fabric: Use plain weaving method to weave the fabric into fabric with threads, and control the weaving density at 400g/m ² . After the weaving is completed, the surface of the fabric is sanded with a sanding roller.

S5. Fabric finishing: Wash the woven fabric for the first time at a water temperature of 60~65℃, and then dehydrate it after washing; then put the washed fabric into a 6~8% soda ash solution at a water temperature of 25~30℃ Wash with alkali, dehydrate again after alkali washing; finally, wash the fabric after alkali washing for a second time at a water temperature of 25~30°C, and dehydrate again after washing. The dehydrated fabric is dried at 80°C for 8 minutes.

S6. Spray glue: After laying the finished fabric flat, use spray-type spray equipment to spray mist waterproof glue on the outer surface of the fabric for 27 seconds. After spraying, the fabric is naturally dried in a flat state. After the fabric is completely dry and the waterproof glue is completely dried and solidified, the waterproof and antifouling fabric of this embodiment is obtained.

Example 3

The fabric of this embodiment is prepared using the following steps:

S1. Core yarn preparation: According to the ratio of 50% cotton, 25% nylon, 20% polyester and 5% polypropylene fiber, weigh the above four short fibers, put them into the cotton picking machine, and then enter the cotton blending process. The cotton is mixed into rolls by machine, and then carded and combed by a carding machine to form a thread. The resulting thread is finished with an antistatic finishing agent, dehydrated, and then dried at 90°C for 5 minutes to finally obtain the core thread. The diameter of the prepared core wire is controlled at 68 μm.

S2. Preparation of outer yarn: According to the ratio of 35% cotton, 30% wear-resistant polyester, 25% polyester-cotton and 10% linen, weigh the above four short fibers and put them into the cotton picking machine for picking, and then enter The cotton is mixed into rolls by a cotton blending machine, and then carded and combed by a carding machine to form a thread. The resulting thread is soaked with a fluorine-containing emulsion finishing agent and cross-linking agent for 20 minutes, dehydrated, and then dried at 100°C. 5min, and finally the outer wire is obtained. The diameter of the prepared outer wire is controlled at 20 μm.

S3. Fabric thread preparation: The core thread and the outer thread are blended in a ratio of 1:3 to make a fabric thread with a diameter of 90 μm.

S4. Weaving fabric: Use plain weaving method to weave the fabric into fabric with threads, and control the weaving density at 425g/m ² . After the weaving is completed, the surface of the fabric is sanded with a sanding roller.

S5. Fabric finishing: Wash the woven fabric for the first time at a water temperature of 60~65℃, and then dehydrate it after washing; then put the washed fabric into a 6~8% soda ash solution at a water temperature of 25~30℃ Wash with alkali, dehydrate again after alkali washing; finally, wash the fabric after alkali washing for a second time at a water temperature of 25~30°C, and dehydrate again after washing. The dehydrated fabric is dried at 85°C for 5 minutes.

S6. Spray glue: After laying the finished fabric flat, use spray-type spray equipment to spray mist waterproof glue on the outer surface of the fabric for 28 seconds. After spraying, the fabric is naturally dried in a flat state. After the fabric is completely dry and the waterproof glue is completely dried and solidified, the waterproof and antifouling fabric of this embodiment is obtained.

Example 4

The fabric of this embodiment is prepared using the following steps:

S1. Core yarn preparation: According to the ratio of 50% cotton, 25% nylon, 20% polyester and 5% polypropylene fiber, weigh the above four short fibers, put them into the cotton picking machine, and then enter the cotton blending process. The cotton is mixed into rolls by machine, and then carded and combed by a carding machine to form a thread. The resulting thread is finished with an antistatic finishing agent, dehydrated, and then dried at 105°C for 3 minutes to finally obtain the core thread. The diameter of the prepared core wire is controlled at 70 μm.

S2. Preparation of outer yarn: According to the ratio of 35% cotton, 30% wear-resistant polyester, 25% polyester-cotton and 10% linen, weigh the above four short fibers and put them into the cotton picking machine for picking, and then enter The cotton is mixed into rolls by a cotton blending machine, and then carded and combed by a carding machine to form a thread. The resulting thread is soaked with a fluorine-containing emulsion finishing agent and cross-linking agent for 20 minutes, dehydrated, and then dried at 105°C. 3min, finally the outer wire is obtained. The diameter of the prepared outer wire is controlled at 21 μm.

S3. Preparation of fabric thread: The ratio of core thread and outer thread is 1:6, and blended by bag blending to make fabric thread with a diameter of 120 μm.

S4. Weaving fabric: Use plain weaving method to weave the fabric into fabric with thread, and the weaving density is controlled at 385g/m ² . After the weaving is completed, the surface of the fabric is sanded with a sanding roller.

S5. Fabric finishing: Wash the woven fabric for the first time at a water temperature of 60~65℃, and then dehydrate it after washing; then put the washed fabric into a 6~8% soda ash solution at a water temperature of 25~30℃ Wash with alkali, dehydrate again after alkali washing; finally, wash the fabric after alkali washing for a second time at a water temperature of 25~30°C, and dehydrate again after washing. The dehydrated fabric is dried at 85°C for 5 minutes.

S6. Spray glue: After laying the finished fabric flat, use spray-type spray equipment to spray mist waterproof glue on the outer surface of the fabric for 25 seconds. After spraying, the fabric is naturally dried in a flat state. After the fabric is completely dry and the waterproof glue is completely dried and solidified, the waterproof and antifouling fabric of this embodiment is obtained.

Take Brand A's waterproof jacket fabric as Comparative Example 1, and take Brand B's waterproof ultra-light down jacket fabric as Comparative Example 2. According to the AATCC-22 and AATCC-118 standards, the fabrics of Examples 1 to 4 of the present invention and Comparative Examples 1 to 2 were tested for waterproof and antifouling properties, and then the fabrics of Examples 1 to 4 of the present invention and Comparative Examples 1 to 2 were tested. After washing the fabric 30 times, the performance test was performed again. The results are shown in Table 1.

Category Water repellent level Oil repellency level Water repellent level (30 washes) Oil repellent level (30 washes) Example 1 4.5 6.5 4.5 6.5 Example 2 5 7 5 7 Example 3 5 7 5 7 Example 4 4.5 6.5 4.5 6.5 Comparative example 1 5 6 3.5 4 Comparative example 2 5 5.5 3.5 3

Table 1 Fabric waterproof, antifouling and washability test data sheet

From the data in Table 1, it can be seen that the waterproof and oil-proof performance of the fabric of the present invention is relatively excellent, the waterproof grade can reach above 4.5, and the oil-proof grade can reach above 6.5. Moreover, after being washed 30 times, the waterproof and oil-proof fabric of the present invention There is no decrease in performance, and the performance is far better than the existing waterproof and anti-fouling fabrics on the market.

It can also be seen from the data in Table 1 that in the present invention, the waterproof and oil-proof properties of the fabric are closely related to the size and weaving density of the threads used in the fabric. When fabric threads with a diameter of 90~100μm are used and the manufacturing density is controlled at 400~425μm, the waterproof and oil-proof performance of the fabric will be optimal. The inventor speculates that the micro-groove structure formed on the surface of fabrics using the above parameters has the best water-repellent and oil-repellent properties. However, beyond the above size range, the water-repellent and oil-repellent properties of the micro-groove structure on the surface will decrease.

Example 5

This example was prepared using basically the same preparation procedures as Example 3.

The only difference lies in the ratio of core wire and outer wire.

The core yarn of this embodiment adopts the following proportion: 55% cotton, 20% nylon, 20% polyester and 5% polypropylene fiber.

The outer cord of this embodiment adopts the following proportions: 40% cotton, 30% wear-resistant polyester, 25% polyester-cotton and 5% linen.

Example 6

This example was prepared using basically the same preparation procedures as Example 3.

The only difference lies in the ratio of core wire and outer wire.

The core yarn of this embodiment adopts the following proportion: 55% cotton, 20% nylon, 22% polyester and 3% polypropylene fiber.

The outer cord of this embodiment adopts the following proportions: 40% cotton, 30% wear-resistant polyester, 25% polyester-cotton and 5% linen.

Example 7

This example was prepared using basically the same preparation procedures as Example 3.

The only difference lies in the ratio of core wire and outer wire.

The core yarn of this embodiment adopts the following proportion: 55% cotton, 22% nylon, 20% polyester and 3% polypropylene fiber.

The outer cord of this embodiment adopts the following proportions: 40% cotton, 30% wear-resistant polyester, 25% polyester-cotton and 5% linen.

Example 8

This example was prepared using basically the same preparation procedures as Example 3.

The only difference lies in the ratio of core wire and outer wire.

The core yarn of this embodiment adopts the following proportion: 55% cotton, 22% nylon, 20% polyester and 3% polypropylene fiber.

The outer cord of this embodiment adopts the following proportions: 40% cotton, 20% wear-resistant polyester, 30% polyester-cotton and 10% linen.

Example 9

This example was prepared using basically the same preparation procedures as Example 3.

The only difference lies in the ratio of core wire and outer wire.

The core yarn of this embodiment adopts the following proportion: 55% cotton, 22% nylon, 20% polyester and 3% polypropylene fiber.

The outer cord of this embodiment adopts the following proportions: 40% cotton, 25% wear-resistant polyester, 30% polyester-cotton and 5% linen.

Example 10

This example was prepared using basically the same preparation procedures as Example 3.

The only difference lies in the ratio of core wire and outer wire.

The core yarn of this embodiment adopts the following proportion: 50% cotton, 25% nylon, 20% polyester and 5% polypropylene fiber.

The outer cord of this embodiment adopts the following proportions: 40% cotton, 30% wear-resistant polyester, 25% polyester-cotton and 5% linen.

Example 11

This example was prepared using basically the same preparation procedures as Example 3.

The only difference lies in the ratio of core wire and outer wire.

The core yarn of this embodiment adopts the following proportion: 50% cotton, 20% nylon, 25% polyester and 5% polypropylene fiber.

The outer cord of this embodiment adopts the following proportions: 40% cotton, 30% wear-resistant polyester, 25% polyester-cotton and 5% linen.

Example 12

This example was prepared using basically the same preparation procedures as Example 3.

The only difference lies in the ratio of core wire and outer wire.

The core yarn of this embodiment adopts the following proportion: 50% cotton, 25% nylon, 22% polyester and 3% polypropylene fiber.

The outer cord of this embodiment adopts the following proportions: 40% cotton, 30% wear-resistant polyester, 25% polyester-cotton and 5% linen.

Example 13

This example was prepared using basically the same preparation procedures as Example 3.

The only difference lies in the ratio of core wire and outer wire.

The core yarn of this embodiment adopts the following proportion: 50% cotton, 22% nylon, 25% polyester and 3% polypropylene fiber.

The outer cord of this embodiment adopts the following proportions: 40% cotton, 30% wear-resistant polyester, 25% polyester-cotton and 5% linen.

Example 14

This example was prepared using basically the same preparation procedures as Example 3.

The only difference lies in the ratio of core wire and outer wire.

The core yarn of this embodiment adopts the following proportion: 50% cotton, 25% nylon, 20% polyester and 5% polypropylene fiber.

The outer cord of this embodiment adopts the following proportions: 35% cotton, 25% wear-resistant polyester, 30% polyester-cotton and 10% linen.

Example 15

This example was prepared using basically the same preparation procedures as Example 3.

The only difference lies in the ratio of core wire and outer wire.

The core yarn of this embodiment adopts the following proportion: 50% cotton, 25% nylon, 20% polyester and 5% polypropylene fiber.

The outer cord of this embodiment adopts the following proportions: 35% cotton, 30% wear-resistant polyester, 30% polyester-cotton and 5% linen.

In accordance with AATCC-22, AATCC-118, AATCC-79 and GB/T5453-1997 standards, the fabrics of Examples 5 to 15 and Comparative Examples 1 to 2 of the present invention were tested for waterproof and antifouling performance, as well as breathability and moisture absorption tests. . Then, the fabrics of Examples 5 to 15 of the present invention and Comparative Examples 1 to 2 were washed 30 times and the test was repeated again. The results of all tests are shown in Table 2.

Category Water repellent Oil repellent Water repellent (30 washes) Oil repellent (30 washes) Moisture absorption/moisture absorption after 30 times of washing (s) Breathable/breathable after 30 washes (mm/s) Example 5 5 7.5 5 7.5 1.8/1.9 181.2/179.8 Example 6 5 7.5 5 7.5 2.5/2.5 181.8/179.7 Example 7 5 7.5 5 7 2.5/2.5 181.4/180.1 Example 8 5 7 5 6.5 2.0/2.1 172.7/171.2 Example 9 5 7 5 7 2.5/2.6 175.6/172.2 Example 10 5 7.5 5 7.5 2.5/2.5 179.6/178.4 Example 11 5 7.5 5 7.5 2.5/2.6 186.4/184.8 Example 12 5 7.5 5 7.5 3.0/3.1 185.2/184.4 Example 13 5 7.5 5 7.5 3.0/3.0 187.2/184.9 Example 14 5 7.5 5 7.5 3.2/3.2 179.8/177.4 Example 15 5 7.5 5 7.5 3.4/3.5 181.2/179.6 Comparative example 1 5 6 3.5 4 3.8/4.5 164.6/150.4 Comparative example 2 5 5.5 3.5 3 3.5/4.2 162.8/144.6

Table 2 Fabric waterproof, anti-fouling, hygroscopic, breathable and washable test data sheet

As can be seen from Table 2, the fabric of the present invention has excellent waterproof and antifouling properties and is washable. It also has good moisture absorption and air permeability, which is far better than existing waterproof and antifouling fabrics. Moreover, the moisture absorption and breathability performance of the present invention only decreases slightly after being washed 30 times, which is far superior to existing waterproof and antifouling fabrics.

It can be seen from the data in Table 2 that the moisture absorption and air permeability properties of the fabric of the present invention are closely related to the cotton content, polypropylene fiber content, hemp content and polyester content of the core yarn and outer yarn. The cotton content, hemp content The higher the polypropylene fiber content, the better the hygroscopicity; and the higher the polyester content, the better the breathability. At the same time, the anti-oil stain performance is also related to the polyester content. The higher the polyester content, the better the anti-oil stain performance.

Example 16

The fabric of this embodiment is prepared using the following steps:

S1. Core yarn preparation: According to the ratio of 52% cotton, 20% nylon, 24% polyester and 4% polypropylene fiber, weigh the above four short fibers, put them into the cotton picking machine, and then enter the mixing process. The cotton is mixed into rolls by a cotton machine, and then carded and combed by a carding machine to form a thread. The resulting thread is finished with an antistatic finishing agent, dehydrated, and then dried at 95°C for 5 minutes to finally obtain the core thread. . The diameter of the prepared core wire is controlled at 65 μm.

S2. Preparation of outer yarn: According to the ratio of 38% cotton, 26% wear-resistant polyester, 28% polyester-cotton and 8% linen, weigh the above four short fibers and put them into the cotton picking machine for picking. Then enter The cotton is mixed into rolls by a cotton blending machine, and then carded and combed by a carding machine to form a thread. The resulting thread is soaked with a fluorine-containing emulsion finishing agent and cross-linking agent for 18 minutes, dehydrated, and then dried at 95°C. 5min, and finally the outer wire is obtained. The diameter of the prepared outer wire is controlled at 18 μm.

S3. Preparation of fabric thread: The ratio of core thread and outer thread is 1:6, and blended by bag blending to make fabric thread with a diameter of 100 μm.

S4. Weaving fabric: Use plain weaving method to weave the fabric into fabric with threads, and control the weaving density at 420g/m ² . After the weaving is completed, the surface of the fabric is sanded with a sanding roller.

S5. Fabric finishing: Wash the woven fabric for the first time at a water temperature of 60~65℃, and then dehydrate it after washing; then put the washed fabric into a 6~8% soda ash solution at a water temperature of 25~30℃ Wash with alkali, dehydrate again after alkali washing; finally, wash the fabric after alkali washing for a second time at a water temperature of 25~30°C, and dehydrate again after washing. The dehydrated fabric is dried at 85°C for 5 minutes.

S6. Spray glue: After laying the finished fabric flat, use spray-type spray equipment to spray mist waterproof glue on the outer surface of the fabric for 28 seconds. After spraying, the fabric is naturally dried in a flat state. After the fabric is completely dry and the waterproof glue is completely dried and solidified, the waterproof and antifouling fabric of this embodiment is obtained.

Example 17

This example was prepared using basically the same preparation procedures as Example 16.

The only difference lies in the ratio of core wire and outer wire.

The core yarn of this embodiment adopts the following proportion: 52% cotton, 21% nylon, 23% polyester and 4% polypropylene fiber.

The outer cord of this embodiment adopts the following proportions: 38% cotton, 26% wear-resistant polyester, 29% polyester-cotton and 7% linen.

Example 18

This example was prepared using basically the same preparation procedures as Example 16.

The only difference lies in the ratio of core wire and outer wire.

The core yarn of this embodiment adopts the following proportion: 52% cotton, 22% nylon, 23% polyester and 3% polypropylene fiber.

The outer cord of this embodiment adopts the following proportions: 38% cotton, 25% wear-resistant polyester, 29% polyester-cotton and 8% linen.

Example 19

This example was prepared using basically the same preparation procedures as Example 16.

The only difference lies in the ratio of core wire and outer wire.

The core yarn of this embodiment adopts the following proportion: 52% cotton, 20% nylon, 23% polyester and 3% polypropylene fiber.

The outer cord of this embodiment adopts the following proportions: 38% cotton, 24% wear-resistant polyester, 30% polyester-cotton and 6% linen.

Comprehensive performance tests were conducted on Examples 16 to 19 according to the aforementioned standard method, and the results are shown in Table 3.

Category Water repellent Oil repellent Water repellent (30 washes) Oil repellent (30 washes) Moisture absorption/moisture absorption after 30 times of washing (s) Breathable/breathable after 30 washes (mm/s) Example 16 5 7 5 7 2.0/2.1 181.4/180.2 Example 17 5 7 5 7 2.1/2.1 181.2/179.4 Example 18 5 7 5 7 2.3/2.3 181.2/179.6 Example 19 5 7 5 7 2.4/2.4 180.8/179.2

Table 3 Fabric comprehensive performance test data table

According to the method of GB/T21196-2007, Examples 16 to 19 were ground for 200 times using a tester, and then the comprehensive performance test was conducted again. The results are shown in Table 4.

Category Water repellent Oil repellent Hygroscopicity (s) Breathable (mm/s) Example 16 5 7 2.1 181.8 Example 17 5 7 2.1 181.5 Example 18 5 7 2.3 181.4 Example 19 5 7 2.4 181.1

Table 4 Comprehensive performance test data table after fabric wear

It can be seen from the data in Table 3 and Table 4 that the comprehensive performance of Embodiments 16 to 19 is better than other embodiments of the present invention.

Examples 1 to 15 and Examples 16 to 19 were tested for contact comfort, fabric softness and wear resistance. The fabric softness and contact comfort of Examples 16 to 19 were both better than those of Examples 1 to 15.

While taking into account the waterproof, oil-proof, washable and wear-resistant properties, as well as the contact comfort, softness, hygroscopicity and breathability of the fabric, under the comprehensive consideration of the above factors, the technical effects of Embodiments 16 to 19 of the present invention are relatively good. The best, the overall performance is far better than similar fabrics currently on the market.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (8)

1. A waterproof and antifouling fabric is characterized in that the fabric is woven by fabric threads in a plain weave or twill weave mode, the monofilament diameter of the fabric threads is 80-120 mu m, and the gram weight is 385-445 g/m ² ；

The fabric thread is formed by blending a core thread and an outer wrapping thread, and the outer wrapping thread is subjected to soaking treatment by a water repellent and antifouling finishing agent;

the core wire comprises 50-55% of cotton, 20-25% of nylon, 20-25% of polyester and 3-5% of polypropylene fiber, the outer wrapping wire comprises 35-40% of cotton, 20-30% of wear-resistant polyester, 25-30% of polyester cotton and 5-10% of hemp, the diameter of a core wire monofilament is 60-70 mu m, and the diameter of the outer wrapping wire monofilament is 17-21 mu m;

the outer surface layer of the fabric is subjected to roughening treatment, and a waterproof adhesive layer is sprayed on the surface layer of the fabric through a spraying process;

the preparation method of the waterproof and antifouling fabric comprises the following steps:

s1, preparing a core wire: according to the core wire proportion, short fiber raw materials are adopted, the raw materials are processed into threads through cotton grabbing, cotton mixing, combing and antistatic treatment, the threads obtained through treatment are processed through a soft finishing agent, and the core wires are obtained through dehydration and drying;

s2, preparing an outer envelope wire: according to the proportion of the outer wrapping wire, short fiber raw materials are adopted, the raw materials are processed into wires through cotton grabbing, cotton mixing, combing and antistatic treatment, the wires obtained through treatment are soaked through a perfluorinated finishing agent and a cross-linking agent, and the outer wrapping wire is obtained through dehydration and drying;

s3, preparing a fabric thread: blending the core wires and the outer wrapping wires prepared in the step S1 and the step S2 into a fabric wire in a mode that the core wires are wrapped on the outer side of the outer wrapping wires in a proportion that 1 core wire is matched with 3-6 outer wrapping wires;

s4, weaving a fabric: weaving the fabric into the fabric by using threads in a plain weave or twill weave mode, and roughening the outer surface layer of the woven fabric;

s5, finishing: the fabric woven in the step S4 is cleaned and finished in a mode of twice water washing and one-time alkali washing in the middle, and then the fabric is dehydrated and dried;

s6, spraying: and uniformly spraying waterproof glue on the surface of the fabric in a spraying manner, and naturally drying the fabric after glue spraying to obtain the waterproof and antifouling fabric.

2. The waterproof and stain-resistant fabric of claim 1, wherein: the monofilament diameter of the fabric thread is 90-100 mu m, and the gram weight is 420-425 g/m ² 。

3. The waterproof and stain-resistant fabric of claim 1, wherein: the core wire comprises 52% of cotton, 20-22% of chinlon, 23-24% of terylene and 3-4% of polypropylene fiber.

4. The waterproof and stain-resistant fabric of claim 1, wherein: the outer wrapping line comprises 38% of cotton, 24-26% of wear-resistant polyester, 28-30% of polyester cotton and 6-8% of hemp.

5. The waterproof and stain-resistant fabric of claim 1, wherein: the waterproof glue layer adopts XF-5003 glue.

6. The waterproof and stain-resistant fabric of claim 1, wherein: in the step S2, the soaking time of the soaking treatment of the perfluorinated finishing agent and the cross-linking agent is controlled to be 18-22 min.

7. The waterproof and stain-resistant fabric of claim 1, wherein: in the step S1 and the step S2, the drying temperature is controlled to be 90-105 ℃ after dehydration, and the drying time is controlled to be 3-5 min; in the step S5, the drying temperature is controlled to be 80-85 ℃, and the drying time is controlled to be 5-8 min.

8. The waterproof and stain-resistant fabric of claim 1, wherein: in the step S6, the time for spraying the waterproof glue is controlled to be 25-30S.