阅读说明：本技术 一种避免高强纤维织物力学性能降低的织造处理方法 (Weaving treatment method for avoiding reduction of mechanical property of high-strength fiber fabric ) 是由 蔡正波 于 2019-08-26 设计创作，主要内容包括：本发明公开了一种避免高强纤维织物力学性能降低的织造处理方法,将高强性能纤维做芯,经复纱机包工艺,包缠水溶性纤维,制得高强复合纤维,在剑杆织机上以平纹工艺织成含水溶性纤维高强织物。再经水处理,使水溶性纤维进行完全溶解,经烘干卷绕,制得纯高强纤维织物。该方法有效降低高强纤维因单丝断裂给织机组件造成的磨损,有效提高纤维在编织过程中的通过性；有效降低了传统水处理酸碱浓度对高强织物力学性能的损伤,有效提高了高强纤维织物的整体力学性能；既大幅度降低布面毛羽率等品疵问题,又提高了织造生产效益。(The invention discloses a weaving treatment method for avoiding the reduction of the mechanical property of a high-strength fiber fabric. And then water treatment is carried out to completely dissolve the water-soluble fiber, and the pure high-strength fiber fabric is prepared by drying and winding. The method effectively reduces the abrasion of the high-strength fiber to the loom components due to the monofilament fracture, and effectively improves the trafficability of the fiber in the weaving process; the damage of the traditional water treatment acid-base concentration to the mechanical property of the high-strength fabric is effectively reduced, and the overall mechanical property of the high-strength fiber fabric is effectively improved; not only greatly reduces the problems of cloth cover hairiness rate and other defects, but also improves the weaving production benefit.)

1. A weaving treatment method for avoiding reduction of mechanical property of high-strength fiber fabric is based on that composite fiber is subjected to the following steps: warping, winding, beaming and weaving to form fiber fabric; the method is characterized in that: the composite fiber takes high-strength fiber with hairiness as a core wire, and is formed by wrapping water-soluble fiber on the surface of the core wire by a single-wrapping method or a positive-and-negative-wrapping method.

2. The weaving treatment method for avoiding the reduction of the mechanical property of the high-strength fiber fabric according to claim 1, characterized in that: the high strength fiber includes: aramid fiber, PBO fiber, carbon fiber, ultra-high molecular weight polyethylene, and PIPD fiber.

3. The weaving treatment method for avoiding the reduction of the mechanical property of the high-strength fiber fabric according to claim 1 or 2, characterized in that: the water-soluble fiber includes: pectin-based fibers, gum-based fibers, polyvinyl acetal fibers, and hydroxymethyl cellulose fibers.

4. The weaving treatment method for avoiding the reduction of the mechanical property of the high-strength fiber fabric according to claim 3, characterized in that:

firstly, doubling yarn; the high-strength fiber with hairiness is wrapped on a wrapping machine by a machine wrapping process, the high-strength fiber is used as a core, and water-soluble fiber is wrapped outside the high-strength fiber to produce the composite fiber;

secondly, warping; hanging the bobbin wound with the composite fiber on a cheese creel, and carrying out warp drawing and sectional warping;

thirdly, winding and combining shafts; winding the warped composite fiber onto a warp beam;

fourthly, weaving; drafting and buckling the combined composite fiber, and weaving the combined composite fiber on a rapier loom according to a plain weave to obtain a high-strength fiber fabric;

fifthly, heating and soaking the high-strength fiber fabric in clear water on a washing and setting machine to completely dissolve the water-soluble fiber in the clear water, drying, setting and winding to obtain the finished fabric.

5. The weaving treatment method for avoiding the reduction of the mechanical property of the high-strength fiber fabric according to claim 4, characterized in that: in the first step, the water-soluble fiber coated outside the high-strength fiber adopts a single-coating method or a positive-reverse coating method, and the over twist degree is 300-900 twists.

6. The weaving treatment method for avoiding the reduction of the mechanical property of the high-strength fiber fabric according to claim 4 or 5, characterized in that: and in the fifth step, the high-strength fiber fabric is soaked in clean water at a heating temperature on a water washing setting machine, and the proportion content of the clean water to the water-soluble fiber on the current high-strength fiber fabric is (400-100): 1.

7. The weaving treatment method for avoiding the reduction of the mechanical property of the high-strength fiber fabric according to claim 7, characterized in that: in the fifth step, the temperature rising curve of the clean water is 20-110 ℃, the heat preservation time is 10 minutes-1 hour, and the water-soluble fiber is slowly dissolved in the range of 40-110 ℃.

Technical Field

The invention relates to the technical field of production of special high-strength bulletproof protection fabrics, in particular to a weaving treatment method for avoiding reduction of mechanical properties of high-strength fiber fabrics.

Background

The high-strength fiber, i.e. the high-strength and high-modulus fiber, is a synthetic fiber with the strength of more than 10CN/dkex and the modulus of more than 200 CN/dkex. For example, the strength of Kevlar (called aramid-1414 in China) fiber successfully developed in the United states is 5 times that of steel wire with the same mass. It has low density, only 1/6 of steel wire, and can transmit microwave. It can be used as the reinforcing material of aeronautical equipment. The high-strength and high-modulus carbon fiber is prepared by taking viscose fiber, acrylic fiber and asphalt fiber as raw materials and performing high-temperature carbonization and graphitization, and is widely applied to atomic energy, metallurgy and chemical industry.

At present, domestic special bulletproof protection fabrics have increasingly larger application requirements, and are generally woven by high-strength fibers through a weaving process. The high-performance fiber has poor pre-orientation due to high strength and high modulus, and the phenomena of monofilament breakage and more broken filaments generally exist in the production of the fiber, so that the weaving processing on a common loom is difficult; meanwhile, the woven high-strength fiber fabric can reduce the monofilament mechanical conductivity of the high-strength fiber to the maximum extent only by washing and deoiling after finishing; the traditional washing process has high acid-base concentration, so that the mechanical properties of the high-strength fibers are damaged to different degrees. How to provide a more effective design for the problems influencing the mechanical property of the high-strength fiber, thereby systematically improving the prevention of the reduction of the mechanical property of the high-strength fiber, forming industrial matching with high-strength fiber manufacturers, producing high-quality high-strength bulletproof protection fabrics with smooth cloth covers and unchanged strength, and becoming the thinking of people of the first generation.

Disclosure of Invention

The technical scheme of the invention is as follows: a weaving treatment method for avoiding the reduction of the mechanical property of high-strength fiber fabric comprises the following steps:

firstly, doubling yarn; the high-strength fiber (any one of aramid fiber, PBO, carbon fiber, ultra-high molecular weight polyethylene and PIPD) with hairiness is wrapped (in a single package or a positive and negative package) by a wrapping machine to form a core wire and water-soluble fiber (any one of pectin-based fiber, gum-based fiber, polyvinyl acetal fiber and hydroxymethyl cellulose fiber) outside, so that the composite fiber is produced;

secondly, warping; hanging the bobbin wound with the composite fiber on a front cheese creel, and carrying out drawing and sectional warping;

thirdly, winding and combining shafts; winding the warped composite fiber on a warp beam according to the requirement of the first part;

fourthly, weaving; drafting and buckling the combined composite fiber, and weaving the combined composite fiber on a rapier loom according to a plain weave to obtain the high-strength fiber fabric;

fifthly, heating and soaking the high-strength fiber fabric in clear water on a washing and setting machine to completely dissolve the water-soluble fiber in the clear water, drying, setting and winding to obtain the pure high-strength fiber fabric;

preferably, in the first step, a double-yarn machine wrapping process is adopted, the single wrapping or the positive wrapping and the negative wrapping can be adopted, and the dislocation twist is 300-900.

Preferably, in the fourth step, the composite fiber after being combined with the shaft is subjected to drafting and buckling, and is woven on a rapier loom according to a plain weave, so that the high-strength fiber fabric is obtained.

Preferably, in the fifth step, the high-strength fiber fabric is soaked in clean water at a high temperature on a water washing setting machine, and the proportion content of the clean water to the water-soluble fibers on the high-strength fiber fabric is (400-100): 1.

Preferably, in the fifth step, the temperature rising curve of the clean water is 20-110 ℃, and the heat preservation time is 10 minutes-1 hour; the water-soluble fiber is slowly dissolved in the temperature range of 40-110 ℃, and after the water-soluble fiber is completely dissolved, the water-soluble fiber is dried, shaped and wound, so that the pure high-strength fiber fabric is obtained.

The invention has the advantages that:

1. the abrasion of the high-strength fibers to loom components caused by monofilament breakage is effectively reduced;

2. the trafficability of the fibers in the weaving process is effectively improved;

3. the damage of the traditional water treatment acid-base concentration to the mechanical property of the high-strength fabric is effectively reduced;

4. the overall mechanical property of the high-strength fiber fabric is effectively improved;

5. not only greatly reduces the problems of cloth cover hairiness rate and other defects, but also improves the weaving production benefit;

6. meanwhile, the process is simple and is suitable for industrial production and popularization.

Drawings

The invention is further described with reference to the following figures and examples:

FIG. 1 is a high strength yarn with hairiness;

FIG. 2 is a high strength yarn after wrapping water soluble fibers;

FIG. 3 is a high strength yarn after dissolution of water soluble fiber;

FIG. 4 is a morphology chart of a high strength fiber fabric treated by the method of the present invention;

FIG. 5 is a view showing the appearance of a fabric according to a conventional method.

Detailed Description

Example 1:

a weaving treatment method for avoiding the reduction of the mechanical property of high-strength fiber fabric comprises the following steps:

firstly, doubling yarn; the method comprises the following steps of (1) wrapping high-strength fibers (which can be any one of aramid fibers, PBO (poly-p-phenylene benzobisoxazole), carbon fibers, ultra-high molecular weight polyethylene and PIPD (polyethylene-p-phenylene terephthalamide)) with hairiness on a wrapping machine by taking the high-strength fibers as core wires, wrapping (with a single bag or a positive and negative bag) water-soluble fibers (any one of pectin-based fibers, gum-based fibers, polyvinyl acetal fibers and hydroxymethyl cellulose fibers) outside, and ensuring that the over twist of the water-soluble fibers is 300-900 twists, so that the composite fiber is produced;

secondly, warping; hanging the bobbin wound with the composite fiber on a front cheese creel, and carrying out drawing and sectional warping;

thirdly, winding and combining shafts; winding the warped composite fiber on a warp beam according to the requirement of the first part;

fourthly, weaving; drafting and buckling the combined composite fiber, and weaving the combined composite fiber on a rapier loom according to a plain weave to obtain the high-strength fiber fabric;

fifthly, the high-strength fiber fabric is soaked in clean water at a high temperature on a washing setting machine, and the proportion content of the clean water to the water-soluble fibers on the high-strength fiber fabric is (400-100): 1. When the temperature of the clean water is raised to 20-110 ℃, the temperature is kept for 10 minutes to 1 hour, so that the water-soluble fiber is slowly dissolved in the range of 40-110 ℃; and after the water-soluble fiber is completely dissolved in clear water, drying, shaping and winding the high-strength fiber fabric to obtain the pure high-strength fiber fabric.

Based on the weaving processing method, the combination of the process parameters involved in the steps is as follows:

serial number	Over twist of water soluble fiber on composite fiber	The proportion content of the clear water and the water-soluble fiber on the current high-strength fiber fabric	Clear water temperature rising curve during clear water temperature rising soaking	Heat preservation time when soaking in clear water at elevated temperature
					1	300 twist	100~150:1	20~30℃	10 to 20 minutes
2	400 twist	125~200:1	30~40℃	15 to 25 minutes
					3	500 twist	175~250:1	40~50℃	22 to 30 minutes
4	600 twist	225~300:1	60~70℃	28-35 minutes
					5	700 twist	275~350:1	80~90℃	32 to 50 minutes
6	800 twist	325~400:1	90~100℃	45 to 52 minutes
					7	900 twist	350~400:1	100~110℃	52 to 60 minutes

Example 2:

the equipment adopted in the embodiment is as follows:

1 coating machine (horse brand MP-168 type full-automatic);

warper 1 table (wareware HF928H high speed intelligent sectional);

beamer 1 station (karmeyer AMR type);

rapier loom 1 stand (schmidt FAST 2.0);

1, washing the setting machine with water (German Gaole);

the method comprises the following steps:

firstly, doubling yarn; the composite fiber is produced by wrapping high-strength fiber with hairiness (in the embodiment, the high-strength fiber is made of 400D ultrahigh molecular weight polyethylene) on a wrapping machine by using the high-strength fiber as a core, wrapping (in the embodiment, the water-soluble fiber is made of polyvinyl alcohol fiber) outside the high-strength fiber (in a single bag or a positive and negative bag), and the over twist of the water-soluble fiber is 300-900 twists.

Secondly, warping; hanging the bobbin wound with the composite fiber on a front cheese creel, and carrying out drawing and sectional warping;

thirdly, winding and combining shafts; winding the warped composite fiber on a warp beam according to the requirement of the first part;

fourthly, weaving; drafting and buckling the combined composite fiber, and weaving the combined composite fiber on a rapier loom according to a plain weave, wherein the warp density and the weft density are respectively 13.5 to obtain the high-strength fiber fabric;

fifthly, the high-strength fiber fabric is soaked in clear water at a temperature rise on a water washing setting machine, and the proportion content of the clear water and the water-soluble fiber is (150): 1. (specifically, the content of water-soluble fiber is 1 kg, and the amount of clear water is 150 kg)

When the temperature of the clear water is raised to 63 ℃, the heat preservation time is 28 minutes; and (3) slowly dissolving the water-soluble fiber, and drying, shaping and winding after the water-soluble fiber is completely dissolved, thereby obtaining the pure high-strength fiber fabric.

Example 3:

the pure high-strength fiber fabric prepared by the weaving treatment method for avoiding the reduction of the mechanical property of the high-strength fiber fabric has excellent fabric performance, and the detection result according to a physical test is as follows:

the fabric prepared by the same material and the same machine according to the conventional method has the following detection results according to a physical test:

through comparison, the breaking strength of the fabric prepared by the conventional method is 6900N; the breaking strength of the pure high-strength fiber fabric prepared by the method is 8900N, and the performance is improved by 29 percent.

In conclusion, the method effectively reduces the abrasion of the high-strength fibers to weaving machine components caused by monofilament breakage; the trafficability of the fibers in the weaving process is effectively improved; the damage of the traditional water treatment acid-base concentration to the mechanical property of the high-strength fabric is effectively reduced; the overall mechanical property of the high-strength fiber fabric is effectively improved; not only greatly reduces the problems of cloth cover hairiness rate and other defects, but also improves the weaving production benefit.

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 concepts disclosed herein be covered by the appended claims.