阅读说明：本技术 一种涤纶长丝环保上浆剂及上浆工艺 (Environment-friendly polyester filament sizing agent and sizing process ) 是由 李娇 于 2019-10-31 设计创作，主要内容包括：本发明涉及纺织领域,具体而言,涉及一种涤纶长丝环保上浆剂、制备方法及上浆工艺。涤纶长丝环保上浆剂,包括主料和助剂,主料包括玉米淀粉、蛋白粉、沸石粉和水。助剂包括二乙醇胺、乙二醇、丙烯酸丁酯、一氯丙酸、氢氧化钠、氨基磺酸钠、阳离子表面活性剂。配置主料后,投入助剂,上浆剂加到上浆机中,投放产品上浆。本申请涉及本申请的目的是：获得一种更环保,价格更低,性价比更高的上浆剂,取代后期处理耗能较大的以PVA为主要的上浆剂,整个上浆液制备及上浆工艺,节能节水,并且在上浆过程中,给成品新赋了抗菌、亲肤的性能,丰富了企业的产业线,增强市场的竞争力。(The invention relates to the field of textiles, in particular to an environment-friendly sizing agent for polyester filaments, a preparation method and a sizing process. The environment-friendly sizing agent for the polyester filaments comprises main materials and auxiliaries, wherein the main materials comprise corn starch, protein powder, zeolite powder and water. The auxiliary agent comprises diethanol amine, ethylene glycol, butyl acrylate, monochloropropaneic acid, sodium hydroxide, sodium sulfamate and a cationic surfactant. After the main material is prepared, the auxiliary agent and the sizing agent are added into a sizing machine, and the product is put in for sizing. The present application relates to the purpose of the present application: the sizing agent which is more environment-friendly, lower in price and higher in cost performance is obtained, the PVA which is used as the main sizing agent and has larger energy consumption in post-treatment is replaced, the whole sizing agent preparation and sizing process is energy-saving and water-saving, and in the sizing process, the antibacterial and skin-friendly performance is newly given to a finished product, the industrial line of an enterprise is enriched, and the market competitiveness is enhanced.)

1. The environment-friendly sizing agent for the polyester filaments is characterized by comprising a main material and an auxiliary agent, wherein the mass percentage of each component in the environment-friendly sizing agent is as follows: 80-90% of main materials and 10-20% of auxiliary agents, wherein the main materials comprise corn starch, protein powder, zeolite powder and water.

2. The environment-friendly polyester filament sizing agent as claimed in claim 1, wherein the main material comprises, by mass, 20-70% of corn starch, 5-30% of albumen powder, 1-5% of zeolite powder and 10-50% of water.

3. The environment-friendly sizing agent for polyester filaments as claimed in claim 1, wherein the auxiliary agent comprises, by mass, 0-70% of diethanolamine, 0-70% of ethylene glycol, 10-30% of butyl acrylate, 5-30% of monochloropropaneic acid, 5-15% of sodium hydroxide, 5-15% of sodium sulfamate and 4-10% of cationic surfactant.

4. A sizing process of a polyester filament environment-friendly sizing agent is characterized by comprising the following steps:

(1) preparing a main material: uniformly distributing starch, mixing the first part of starch with boiling water, stirring and gelatinizing at the temperature of 90-100 ℃;

mixing the second part of starch, zeolite powder and cold water, merging the mixture into the first part of starch pasting liquid, maintaining the temperature at 60-70 ℃, stirring and pasting, and adding protein powder to obtain uniformly dispersed main material slurry; the first gelatinization time and the second gelatinization time are 30-120 min;

(2) mixing the main slurry and the auxiliary agent according to the mass percentage of the main slurry and the auxiliary agent in the textile slurry respectively, wherein the main material accounts for 80-90%, the auxiliary agent accounts for 10-20%, and the main material and the auxiliary agent are uniformly mixed to obtain the textile slurry;

(3) and (4) injecting the textile size into a sizing machine groove, and sizing the polyester filament yarns.

5. The sizing process of the environment-friendly polyester filament sizing agent according to claim 4, wherein the mixing temperature of the main material and the auxiliary agent in the step (2) is 60-80 ℃, and the mixing time is 20-60 min.

6. The sizing process of the environment-friendly polyester filament sizing agent according to claim 4 or 5, wherein the temperature of a size box of the sizing machine is 40-60 ℃, and the sizing vehicle speed is 30-60 m/min.

Technical Field

The invention relates to the field of textiles, in particular to an environment-friendly sizing agent for polyester filaments, a preparation method and a sizing process.

Background

When processing the polyester filament fabric, if the warp yarn uses low twist yarn, untwisted yarn or interlaced yarn, the yarn must be pulped before weaving, so that the surface of the strand silk is covered with a layer of smooth, flexible and firm serous membrane, the hairiness quantity is reduced, the wear resistance and the cohesive force are improved, and the yarn can bear various friction forces and tension forces in the weaving process, thereby playing the effect of preventing or reducing the end breakage of the warp yarn in the weaving process, and leading the weaving production to be smoothly carried out under the requirements of high quality and high yield. The three major sizing agents in the textile industry at present are: PVA, modified starch and acrylic syrup. Wherein, a large amount of PVA is needed to be used in the process of sizing terylene, and the global market has 30 million tons of sizing agents each year, wherein the PVA sizing agent accounts for 30 percent. However, PVA slurries have a number of disadvantages. The biodegradation performance is poor, and only 15-25% of PVA is degraded after the anaerobic activated sludge treatment for 300 days. As people become more conscious about environmental protection, restrictions on the use of PVA have increased, such as: the national environmental protection administration points out in the notification of 'technical policy for preventing and treating wastewater pollution in printing and dyeing industry' published in 2001: it is recommended to use easily degradable pulp, and to limit or eliminate the use of difficult-to-degrade pulp such as PVA. Also in european countries, PVA slurry is prohibited and PVA sized fabrics are prohibited from export to european countries.

The formula of the current textile size comprises a main size and an auxiliary size. The current main sizing agent considers the sizing difficulty and the sizing cost, the sizing agent used for sizing the polyester yarn is mainly PVA, or other adhesives such as CMC, modified starch and the like are added into the PVA sizing agent, but the added synergistic adhesives still have a plurality of problems, the price of the first material is still high, the mixture solution of the first material and the PVA has instability, is easy to delaminate and mix, has poor affinity with fiber, and has poor sizing effect.

The temperature of a size box is required to be over 90 ℃ by adopting a common sizing method, so that the problem that the sizing quality is influenced and serious sizing defects such as sizing skin and sizing speck are generated due to viscosity increase caused by temperature reduction is avoided. However, maintaining such high temperatures requires a large amount of steam, and energy-saving production cannot be achieved.

As the size box of the sizing machine needs to continuously supply steam for heating and heat preservation, condensed water in the steam is brought into the size box, the solid content of the size is reduced, the sizing amount of sizing yarn is changed, and the sizing rate is unstable.

Disclosure of Invention

The invention aims to: the environment-friendly polyester filament yarn sizing agent is easy to size and desize, low in cost and more environment-friendly to use. The invention also aims to provide a preparation method and a sizing process of the environment-friendly textile size, which can ensure that the size has good permeation and coating effects on the polyester yarns, can obviously reduce the hairiness amount and improve the wear resistance of the sized yarns.

The invention is realized by the following technical scheme:

the environment-friendly sizing agent for the polyester filaments comprises a main material and an auxiliary agent, wherein the mass percentage of each component in the environment-friendly sizing agent is as follows: 80-90% of main material and 10-20% of auxiliary agent. The main materials comprise corn starch, albumen powder, zeolite powder and water.

Preferably, the main material comprises, by mass, 20-70% of corn starch, 5-30% of albumen powder, 1-5% of zeolite powder and 10-50% of water.

Preferably, the auxiliary agent component comprises 0-70% of diethanol amine, 0-70% of ethylene glycol, 10-30% of butyl acrylate, 5-30% of monochloropropaneic acid, 5-15% of sodium hydroxide, 5-15% of sodium sulfamate and 4-10% of cationic surfactant by mass ratio.

A sizing process of a polyester filament environment-friendly sizing agent comprises the following steps:

(1) preparing a main material: equally dividing starch, mixing the first part of starch with boiling water, stirring and gelatinizing at 90-100 ℃. Mixing the second part of starch, zeolite powder and cold water, merging the mixture into the first part of starch pasting liquid, maintaining the temperature at 60-70 ℃, stirring and pasting, and adding protein powder to obtain uniformly dispersed main material slurry; the first gelatinization time and the second gelatinization time are 30-120 min;

(2) the main slurry and the auxiliary agent are mixed according to the mass percentage of the main slurry and the auxiliary agent in the textile slurry respectively, the main material is 80-90%, the auxiliary agent is 10-20%, and the main material and the auxiliary agent are uniformly mixed to obtain the textile slurry.

(3) And (4) injecting the textile size into a sizing machine groove, and sizing the polyester filament yarns.

Preferably, the temperature for mixing the main material and the auxiliary agent in the step (2) is 60-80 ℃, and the mixing time is 20-60 min.

Preferably, the temperature of a pulp tank of the sizing machine is 40-60 ℃, and the sizing vehicle speed is 30-60 m/min.

The auxiliary agent used in the invention can be well and uniformly mixed with the main material, the process is simple, the slurry can be prepared, and the prepared slurry has good permeability, so that the reinforcing effect is good after the sizing of the polyester filament, and the hairiness reducing effect is obvious. The oxidized zeolite can enhance the moisture adsorption performance of the starch and is uniformly and quickly melted into a cold water system, so that the time of secondary gelatinization is accelerated, the energy consumption is reduced, and the adhesion performance of the whole sizing agent is improved. In addition, the zeolite increases a certain network structure formed by the zeolite and the soybean protein slurry film in a water system, and can cooperate with the plasticizers of ethylene glycol and diethanol amine to ensure that the soybean slurry film overcomes the easy breakage and becomes extended and increased. The sized zeolite is reserved as a filling agent and filled in the terylene, so that the overall weight is increased, the terylene is softer, and the woven cloth is skin-friendly and antibacterial.

In addition, the temperature for mixing the main material and the auxiliary agent in the step (2) is 60-80 ℃, and the mixing time is 20-

And (5) 60 min. The final slurry is obtained from the preparation of the main material to the mixing of the main material and the auxiliary agent, the high temperature is not required to be kept all the time, the energy is saved, the environment is protected, the method is simple, and the method is very favorable for large-scale production of enterprises.

A sizing method of a polyester filament environment-friendly sizing agent, which is characterized in that textile sizing agent is used for sizing polyester yarns,

because the viscosity of the sizing agent is far less than that of PVA sizing agent, when sizing at low temperature, no large sizing defects such as sizing skin, sizing spots and the like are generated, so that the high temperature is not required to be maintained all the time, the steam quantity is saved, the energy is saved, and the unstable sizing rate of sizing caused by the fact that condensed water in steam is brought into a size tank to reduce the solid content of the sizing agent is avoided.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. the raw materials adopted by the invention are all environment-friendly materials, do not use PVA and other substances which are difficult to degrade, have little pollution to the environment and reduce the environmental protection pressure of the factory.

2. The sizing agent prepared by the invention has good permeability, enhanced adhesion property with the polyester yarns, obvious effect of attaching to hairiness of the yarns, and capability of effectively improving the wear resistance of the sized polyester yarns, thereby improving the weaving efficiency.

3. The sizing agent prepared by the invention endows the polyester filament yarn with antibacterial, smooth and skin-friendly performance, realizes the functionalization of finished products and increases the market competitiveness.

4. The invention has the advantages of simple process from preparation of the sizing agent to the whole sizing process, small equipment investment, green production, energy conservation and emission reduction.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.