Yarn production method

FIELD: textile industry.

SUBSTANCE: method involves introducing foamed latex binder into formed yarn; providing thermal processing of resultant yarn; fully untwisting thermally processed yarn in direction opposite initial twisting direction; teasing untwisted yarn. Thermal processing of yarn comprising foamed binder ensures formation of maximal amount of bound portions at maximally compacted yarn structure to thereby facilitate in keeping of deformation properties of yarn upon further untwisting and teasing of untwisted yarn. With full untwisting of yarn, with bound portions being kept, cross section thereof is increased and density is reduced.

EFFECT: increased volume and improved thermal insulating properties of yarn.

 

The proposed method is to treat the technology of yarn with increased volume, improved heat-shielding properties.

A known method of producing yarn with improved properties, characterized in that the yarn is injected latex binder in an expanded state with a subsequent heat treatment of the yarn (FR 1309719 And 08.10.1962).

The disadvantage of this method is that after heat treatment, the yarn does not change its cross sectional dimensions, its volume is not increased, and the heat-shielding properties are not improved.

The technical result of the proposed method is the improvement of thermal insulation properties of the yarn. This technical result is achieved in that the formed yarn is injected latex binder in foamed condition with subsequent heat treatment, after which the yarn is completely untwist and workout.

The proposed method provides:

- production of yarn in the classical way;

- enter into yarn latex binder in the foamed state by the passage of the yarn through the foam layer with subsequent transverse compression of the yarn;

- heat treatment of the yarn;

- the complete unwinding of the yarn in the opposite direction of the primary twist;

- Napping of flannel yarn.

The use of a binder in the foamed state minimizes its consumption. In the destruction of the tapes of cells n is HN drops binders are fixed in contact (convergence) fibers. When the transverse compression of the yarn pores of the product filled binder, divided evenly over its volume. Heat treatment of the yarn with the introduction of its binder provides education to the greatest number of splices in the most compact structure of the yarn. This helps keep the deformation properties of the yarn during its subsequent unwinding and varovanie.

The full unwinding of the yarn while maintaining bonding provides an increase of its diameter, the decrease in the density, increasing the volume and improving thermal insulation properties.

Napping of flannel increases the transverse dimensions of the yarn, its covering capacity and further enhance teplonositeli while reducing the consumption of yarn for the manufacture of the product (or 1 m2the canvas).

A method of producing a yarn, according to which in the formed yarn is injected latex binder in an expanded state with a subsequent heat treatment of the yarn, characterized in that after heat treatment, the yarn is completely untwist and workout.



 

Same patents:

The invention relates to the field of light industry, and more specifically to processing and rope products used in industrial fisheries and other sectors of the economy

The invention relates to textile, clothing and knitwear sectors of light industry and relates to devices for processing of yarns and threads used in the manufacture of products for household and special purpose

FIELD: textile industry.

SUBSTANCE: method involves introducing foamed latex binder into formed yarn; providing thermal processing of resultant yarn; fully untwisting thermally processed yarn in direction opposite initial twisting direction; teasing untwisted yarn. Thermal processing of yarn comprising foamed binder ensures formation of maximal amount of bound portions at maximally compacted yarn structure to thereby facilitate in keeping of deformation properties of yarn upon further untwisting and teasing of untwisted yarn. With full untwisting of yarn, with bound portions being kept, cross section thereof is increased and density is reduced.

EFFECT: increased volume and improved thermal insulating properties of yarn.

FIELD: cordage.

SUBSTANCE: invention relates to cordage protected from action of external medium. Proposed method of treatment includes application of treatment compound with gradually winding off cordage article submerged in said compound and pulling article through compound at speed providing required preset depth of impregnation. Then cordage article is passed through draw plate and squeezed out. Squeezed out article is wound on drum. Temperature of treatment compound is maintained at level of 70-75°. Compound contains paraffin. Use is made of degreased paraffin into which mineral oil is additionally introduced at the following ratio of components, mass %: degreased paraffin 85-90; mineral oil 15-10. Device is furnished with means for application of treatment compound made in from of cylindrical channel. Said channel is arranged coaxially to cylinder with heat carrier furnished with heat sensor and connected with reservoir for heating of heat carrier. Cylindrical channel for application of treatment compound is connected at one side with reservoir with heated treatment compound, and at other side it is furnished with draw arranged at outlet end of cylindrical channel. Device proper is furnished with winding off and winding on drums.

EFFECT: provision of cordage impregnated with treatment compound through entire thickness of article.

4 cl, 1 dwg

FIELD: textile fabrics, paper.

SUBSTANCE: invention is related to treatment of cordage used in industrial fishing. Article is submerged into composition for treatment and pulled through it. Composition contains latex BSM-65 of A or B brand, wax emulsion VE-40, water and dye, if required. Then article is preliminarily dried at 40±5°C, the first stage of drying is carried out at 60±10°C for 16-18 minutes. The second stage is realised at 80±10°C for 16-18 minutes and thermally treated at 130±10°C for 1.5-3.5 minutes.

EFFECT: production of flexible, plastic and brightly coloured articles.

3 cl, 4 tbl

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