阅读说明：本技术 再生涤纶的防水工艺 (Waterproof process of regenerated polyester ) 是由 徐纯刚 苏俊 于 2019-11-04 设计创作，主要内容包括：本发明公开了再生涤纶的防水工艺,包括了五个步骤。本发明再生涤纶的防水工艺的制备方法,通过在再生涤纶的生产工艺中增加涂层工艺,在用使用时可以利用涂层机将涂层胶均匀涂敷在再生涤纶的表面,并经过高温处理后,涂层剂可通过自身结构中反应性官能团的交联作用形成热固型的网状薄膜,从而是实现增加再生涤纶整体的防水性能,通过在烘燥处理加工后增加了冷却处理,采用环吹风冷却的方式对烘燥处理后的再生涤纶进行降温处理,在使用时可以有效地对再生涤纶进行散热,缩短涤纶生产时间的同时,还可以减少再生涤纶在生产加工过程中所产生的静电,避免再生涤纶在生产加工过程中所产生的静电对操作人员工作时造成困扰,优化使用过程。(The invention discloses a waterproof process of regenerated terylene, which comprises five steps. The preparation method of the waterproof process of the regenerated terylene of the invention adds the coating process in the production process of the regenerated terylene, when in use, the coating machine can be utilized to evenly coat the coating glue on the surface of the regenerated terylene, and after high temperature treatment, the coating agent can form thermosetting reticular film through the cross-linking action of the reactive functional group in the self structure, thereby realizing the increase of the integral waterproof performance of the regenerated terylene, and through adding cooling treatment after drying treatment, the regenerated terylene after drying treatment is cooled by adopting the circular air cooling mode, when in use, the regenerated terylene can be effectively radiated, the production time of the terylene is shortened, the static electricity generated in the production and processing process of the regenerated terylene can be reduced, and the trouble of the static electricity generated in the production and processing process of the regenerated terylene to the working of operators is avoided, and optimizing the use process.)

1. The waterproof process of the regenerated polyester is characterized by comprising the following steps: the method comprises the following five steps:

the method comprises the following steps: the padding waterproof agent comprises the following components: firstly, adding waterproof agents GFA-1, HAC and water, then adding a compound C1-1, then adding a compound AT-1 for development, carrying out soaking and rolling on the regenerated terylene after development, and carrying out drying treatment after the soaking and rolling;

step two: the coating is as follows: adopting domestic nonionic self-crosslinking acrylate coating adhesive emulsion LF to prepare a coating agent, and after the preparation is successful, uniformly coating the coating adhesive on the surface of the regenerated polyester by using a coating machine;

step three: the drying treatment comprises the following steps: in the production process, in order to prevent the polyester from yellowing under high temperature of organic silicon, the temperature is controlled at 163-170 ℃ for 40s during drying treatment, the vehicle speed is not too fast, otherwise, the phenomena of slurry accumulation and slurry leakage occur on the lotus leaf edge during coating due to poor shaping;

step four: and (3) cooling treatment: the regenerated terylene after drying treatment is cooled by adopting a circular air-blowing cooling mode, and the air speed is generally controlled to be 0.5-3.8 m/s, so that the cooling time in the processing process of the regenerated terylene is shortened;

step five: and (3) forming: regenerated polyester utilizes the coiling mechanism to carry out the roll-up to the dacron after cooling treatment, can utilize the cutter to cut off processing to regenerated polyester according to actual demand after collecting to improve the practicality of device.

2. The waterproof process of the regenerated polyester fiber as claimed in claim 1, which is characterized in that: in the waterproof finishing formula (g/I), a compound AT-1 is 14, a compound CI-1 is 11, an organosilicon waterproofing agent GFA-1 is 21, HAC (pH value is adjusted to be 6) and water are proper, and the temperature is controlled AT (154-159 ℃ for 30s) during drying treatment.

3. The waterproof process of the regenerated polyester fiber as claimed in claim 1, which is characterized in that: the weight gain of the terylene is related to the distance between the coating knife and the terylene, the bigger the knife distance is, the bigger the sizing amount is, the weight gain of the terylene is also related to the vehicle speed and the viscosity of the coating slurry, the vehicle speed is slow, the slurry is thin, the coating slurry permeates into the terylene for a large amount, the sizing amount is also large, on the contrary, the vehicle speed is fast, the slurry is thick, the sizing amount is small, the angle of the scraper, the depth of the knife and the distance of the tension roller are also important factors influencing the sizing amount, and when the scraping angle is 97-98 degrees, the coating effect is the best.

4. The waterproof process of the regenerated polyester fiber as claimed in claim 1, which is characterized in that: in the production, an operator needs to adjust the pulp baffle at any time to prevent pulp leakage caused by polyester drift, and needs to timely remove foreign matters such as yarn ends at cloth surfaces and scraper openings during processing to prevent knife strips and knife lines on the surface of a coating caused by the fact that the edges are blocked by the foreign matters.

5. The waterproof process of the regenerated polyester fiber as claimed in claim 1, which is characterized in that: the oiling rate is low, the fiber is easy to generate static electricity, the oiling is excessive, the fiber is easy to stick to a roller, the oil-water ratio is controlled to be 18-23 percent usually, and the final oiling rate of the fiber is controlled to be 0.1-0.2 percent, so that the spinnability of the regenerated polyester staple fiber can be ensured.

6. The waterproof process of the regenerated polyester fiber as claimed in claim 1, which is characterized in that: when the temperature of the regenerated terylene is reduced, the specific heat of cooling air can be increased by increasing the rheumatism, the cooling of the terylene is accelerated, the static electricity generated during processing is reduced, and the relative humidity is controlled to be 64-80%.

Technical Field

The invention relates to the technical field of polyester processing, in particular to a waterproof process of regenerated polyester.

Background

Polyester fiber, commonly known as 'polyester', is a synthetic fiber obtained by spinning polyester formed by polycondensation of organic dibasic acid and dihydric alcohol, called PET fiber for short, belongs to a high molecular compound, is invented in 1941 and is the first major variety of the current synthetic fiber, the polyester fiber has the greatest advantages of good crease resistance and shape retention, higher strength and elastic recovery capability, firmness and durability, crease resistance, no ironing, no wool sticking, high strength, high modulus and low water absorption, has wide application as civil fabrics and industrial fabrics, can be used as textile materials, and can be purely spun and is particularly suitable for being blended with other fibers; the polyester fiber can be blended with natural fibers such as cotton, hemp and wool, and can also be blended with other chemical short fibers such as viscose fiber, acetate fiber, polyacrylonitrile fiber and other short fibers, the pure-spun or blended cotton-like, wool-like and hemp-like fabrics generally have the original excellent characteristics of polyester fiber, such as wrinkle resistance, pleat retention, dimensional stability, wear resistance, washing and wearing performance and the like of the fabrics, and the original defects of the polyester fiber, such as static phenomenon and dyeing difficulty in textile processing, poor sweat absorption and air permeability, easiness in fusing into cavities when encountering mars and the like, can be lightened and improved to a certain extent along with the mixing of hydrophilic fiber.

However, although the existing regenerated polyester has a certain waterproof property, with the increasing improvement of the waterproof performance requirement of the polyester fabric, the existing waterproof finishing process adopting one-dipping-one-binding technology cannot meet the performance requirement of functional clothes, and the whole temperature of the regenerated polyester after drying treatment is high, the cooling speed is low, and the processing of workers is influenced.

Disclosure of Invention

The invention aims to provide a waterproof process of regenerated polyester to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the waterproof process of the regenerated polyester is characterized by comprising the following steps: the method comprises the following five steps:

the method comprises the following steps: the padding waterproof agent comprises the following components: firstly, adding waterproof agents GFA-1, HAC and water, then adding a compound C1-1, then adding a compound AT-1 for development, carrying out soaking and rolling on the regenerated terylene after development, and carrying out drying treatment after the soaking and rolling;

step two: the coating is as follows: adopting domestic nonionic self-crosslinking acrylate coating adhesive emulsion LF to prepare a coating agent, and after the preparation is successful, uniformly coating the coating adhesive on the surface of the regenerated polyester by using a coating machine;

step three: the drying treatment comprises the following steps: in the production process, in order to prevent the polyester from yellowing under high temperature of organic silicon, the temperature is controlled at 163-170 ℃ for 40s during drying treatment, the vehicle speed is not too fast, otherwise, the phenomena of slurry accumulation and slurry leakage occur on the lotus leaf edge during coating due to poor shaping;

step four: and (3) cooling treatment: the regenerated terylene after drying treatment is cooled by adopting a circular air-blowing cooling mode, and the air speed is generally controlled to be 0.5-3.8 m/s, so that the cooling time in the processing process of the regenerated terylene is shortened;

step five: and (3) forming: regenerated polyester utilizes the coiling mechanism to carry out the roll-up to the dacron after cooling treatment, can utilize the cutter to cut off processing to regenerated polyester according to actual demand after collecting to improve the practicality of device.

Further, in the waterproof finishing formula (g/I), the compound AT-1 is 14, the compound CI-1 is 11, the organosilicon waterproofing agent GFA-1 is 21, HAC (pH value is adjusted to be 6) and water are proper, and the temperature is controlled AT (154-159 ℃ for 30s) during drying treatment.

Further, the weight gain of the terylene is related to the distance between the coating knife and the terylene, the larger the knife distance is, the larger the sizing amount is, the weight gain of the terylene is also related to the vehicle speed and the viscosity of the coating slurry, the vehicle speed is slow, the slurry is thin, the coating slurry permeates into the terylene more, the sizing amount is also large, otherwise, the vehicle speed is fast, the slurry is thick, the sizing amount is small, the angle of a scraper, the depth of a knife and the distance of tension rollers are also important factors influencing the sizing amount, and when the scraping angle is 97-98 degrees, the coating effect is the best.

Furthermore, an operator in the production needs to adjust the pulp baffle at any time to prevent the pulp leakage phenomenon caused by the drift of the terylene, and the operator needs to timely remove the foreign matters such as yarn ends at the cloth cover and the scraper edge during processing to prevent the knife strips and the knife lines on the surface of the coating caused by the blockage of the edge by the foreign matters.

Furthermore, the oiling rate is low, the fiber is easy to generate static electricity, the oiling is excessive, the fiber is easy to stick to a roller, the oil-water ratio is controlled to be 18-23 percent usually, and the final oiling rate of the fiber is controlled to be 0.1-0.2 percent, so that the spinnability of the regenerated polyester staple fiber can be ensured.

Furthermore, when the temperature of the regenerated terylene is reduced, the specific heat of cooling air can be increased by increasing the rheumatism, the cooling of the terylene is accelerated, the static electricity generated during processing is reduced, and the relative humidity is controlled to be 64-80%.

Compared with the prior art, the invention has the beneficial effects that: the preparation method of the waterproof process of the regenerated terylene increases the coating process in the production process of the regenerated terylene, can utilize a coating machine to evenly coat coating glue on the surface of the regenerated terylene when in use, and after high-temperature treatment, the coating agent can form a thermosetting reticular film through the cross-linking action of reactive functional groups in the self structure, thereby realizing the increase of the integral waterproof performance of the regenerated terylene, and reduces the static electricity generated in the production and processing process of the regenerated terylene while shortening the production time of the terylene by adding cooling treatment after drying treatment and adopting the circular air cooling mode to cool the dried regenerated terylene, thereby avoiding the static electricity generated in the production and processing process of the regenerated terylene from causing troubles to the working of operators, and optimizing the use process.

Drawings

FIG. 1 is a flow chart of the waterproof process of the regenerated polyester fiber of the present invention;

FIG. 2 is a formula and a proportion diagram of a coating adhesive of the waterproof process of the regenerated polyester.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.