RU2000367C1 - Compound for sizing of chemical threads - Google Patents

Abstract

Usage: in the textile industry in the preparation of the basics for weaving. The inventive composition contains a copolymer of 2-4 mol. ethyl acrylate, 1-2 mol. methyl methacrylate and 1-4 mol. ammonium salt of acrylic acid 3-7 wt.%, sodium methyl silicate (preparation GGZh-11) 0.03-0.15 wt.%. triethanolamine 0.01-0.10 wt.%, calcium chloride 0.05-0.50 wt.%, glycerol 0.10-0.50 wt.%, nonionic surfactant (preparation syntanol DT-3, syntanol DS- 10, syntamide -

Description

The invention relates to the field of textile and light industry and can be used for sizing chemical multifilament yarns before weaving.

Dressings based on vinyl compounds for treating man-made filaments are known.

However, the yarns treated with these sizing compositions do not possess the necessary set of properties for satisfactory processing on weaving mills. In particular, low rates on

abrasion, which leads to flying over the dressing on weaving equipment, as well as unsatisfactory results when desizing the resulting fabrics, which leads to marriage in the processes of dyeing.

Closest to the invention is an acrylic copolymer-based dressing, further comprising an organosilicon additive.

The disadvantage of this drug is the insufficient adhesion of the dressing film to chemical threads (acetate, viscose, triacetate, polyester)

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A significant effect on the adhesion value of this copolymer to threads is exerted by the presence of dope and sizing preparations on the threads. This leads to the softening of the dressing film and its plasticization, which results in bonding the warp threads on the weaving.

In addition, the hardness salts of water influence the quality of the sutured yarns by a known preparation, leading to the formation of sizing of the dressing on the headset of the weaving machine, which leads to a decrease in the productivity of the weaving equipment.

An object of the invention is to improve the processing ability of weaving yarns.

This goal is achieved by using a composition for sizing Chemical complex yarns containing an acrylic copolymer based on ethyl acrylate, methyl methacrylate, ammonium salt of acrylic acid, as well as GKZh-11, triethanolamine. calcium chloride, glycerin, non-ionic surfactant, in the following ratio, wt.%:

Acrylic copolymer based on ethyl acrylate, methyl methacrylate, ammonium salt of acrylic acid with a ratio of monomers 2-4: 1-2: 1-14 3.0-7.0 Sodium silicate (GKZh-11) 0.02-0.15 Triethanolamine 0.01 -0.10

Nonionic surfactant 0.05-0.25 Calcium chloride 0.05-0.5 Glycerin 0.10-0.59 Water Else Characterization of dressing components. Acrylic copolymer based on ethyl acrylgt, methyl methacrylate and ammonium if acrylic acid is a sizing preparation intended for sizing of chemical threads and yarns processed on all types of machines, in the form of a highly viscous colorless aqueous solution (22.0-25.0 %), the drug is non-combustible, non-toxic, small-small 30,000-100,000 (TU 6-01-1321-86).

GKZH-11 - 30% aqueous solution of sodium methylsiliconate. In the textile industry it is used as a modifying additive in the sizing process (TU6-02 596-76).

Glycerin BUT CH2CH (OH) CH2OH, M - 92.09. viscous liquid, colorless to dark brown, without health x sweet0

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which is hygroscopic, miscible with water (GOST 6259-75).

Calcium chloride SeOg 2H20. soluble in water, hygroscopic (GOST 4161-67).

Nonionic surfactant.

Sintanol DT-7 is a non-ionic preparation, at 20 ° С soft paste of white or light yellow color, it is easily soluble in water at. A 1% aqueous solution of syntanol DT-7 is a clear, colorless liquid having a neutral or slightly alkaline reaction. Syntanol DT-7 has a high detergent or emulsifying effect.

Syntanol DT-7 is used in the textile industry as a wetting agent and detergent in the processes of desizing, washing, boiling, bleaching and dyeing of textile materials from natural, chemical and mixed fibers.

Sintamide - 510 is a nonionic preparation, small in size, and the liquid is easily mobile from yellow to light brown in color. The content of the active substance is 100%. It belongs to the group of biodegradable substances, it is soluble in water, has a high detergent and emulsifying effect, and is used in the textile industry as a wetting agent in the washing process. boiling, bleaching and dyeing of materials from natural and chemical fibers.

Sintanol DS-10 is a non-ionic preparation, soft paste is white or light yellow. The content of the active substance is 100%, it belongs to the group of biodegradable substances, it is soluble in water at 30-40 ° C. 1% aqueous solutions have a slightly alkaline or neutral reaction. It is used in the textile industry as a wetting agent, detergent in washing, decoction and dyeing processes, as well as in the desizing process.

From literary sources it is known that, in addition to the main polymer compounds, additional textile and auxiliary substances such as silicon-organic compounds, hygroscopic substances, plasticizers, etc., can be introduced into the dressing compositions.

It should be noted that in this case, a positive effect is achieved only with the combined use of all the proposed ingredients of the saga. The absence of one of the components of the proposed composition leads to a decrease in all indicators of the sizing yarn (see table). This can be explained by the fact that each component in the composition performs its specific function, moreover, its effect is enhanced by the presence of another component of the composition, and the absence of one or another component reduces the influence of the known component on the dressing properties.

It should also be noted that the proposed combination of components of the proposed dressing composition was not found in the literature both in terms of their qualitative (chemical) and quantitative ratios.

The composition of the proposed composition makes it possible to increase the adhesion of the dressing film while maintaining its elasticity, to make the dressing film inert to a sizing agent of various chemical nature located on the surface of the thread, to improve the abrasion of the thread, and to reduce friction and electrification coefficients.

This leads to a decrease in the breakage of the processed yarns and to an increase in the productivity of weaving equipment.

The invention is illustrated by examples.

The experiments performed with the foreign values of the components of the composition did not lead to positive results.

Example. The calculated amount of CaCte is dissolved in 70.0% by weight of water heated to 40-45 ° C, the calculated amount of acrylic copolymer is added with stirring until a homogeneous solution is formed, then the calculated amount of GKZh-11, triethanolamine, is added sequentially with stirring. Nonionic surfactants and glycerol. Everything was thoroughly mixed, water was added to the calculated amount, and everything was heated to 60 ° C.

The resulting solution is sieved polyester, acetate, triacetate, viscose complex yarns on a machine ШБП-7/180 with the contact method of drying the sutured yarns in zones: Zone I - 50-100 ° С. II zone - 80-120 ° С, III zone - 50-70 ° С.

The basics were processed on a STB-2-175 loom.

The quantitative ratios of the components and the processing results are presented in the table.

Comparative prototype example. A calculated amount of an aqueous solution of a copolymer based on ethyl acrylate, methyl methacry, is loaded into the reactor, this and ammonium acrylate are diluted with water and stirred until a clear, uniform solution is obtained at a temperature of 40-50 ° C. Then, the calculated amount of the organosilicon additive is added thereto with stirring.

The resulting solution is used to dress acetate complex yarns on a ShBL-7/170 machine with the contact drying method on drums at a temperature in the zones: I zone - 00 ° C, II zone - 110 ° C, III zone - 50 ° C.

Claims (1)

Polyester complex and textured yarns, as well as viscose and triacetate, are treated similarly. The processing results of the composition of the components are given in the table. The formula for sizing chemical complex yarns based on a copolymer of ethyl acrylate, methyl methacrylate and ammonium salt of acrylic acid, taken in a molar ratio of 2-4: 1-2: 1-4, respectively, of an organosilicon additive and water, characterized in that it contains on the quality of the organosilicon additive sodium methylsiliconate and additionally triethanolamine, calcium chloride, glycerin and a nonionic surfactant in the following ratio of components, wt.%: Ethyl acrylate copolymer. methyl methacrylate and ammonium salt of acrylic acid, taken in a molar ratio, respectively 2-4: 1-2: 1-43-7 Sodium methylsiliconate 0.03-0.15 Triethanolamine 0.01-0.1 Calcium Chloride 0.05-0.5 Glycerin 0.1-0.5 Nonionic surfactant 0.05-0.25 Water 20003678 Chemical sizing results complex threads