Production method of heat-accumulation and heating bulked double-layered-structure yarn warm-keeping knitted fabric

Abstract

The invention discloses a production method of a heat-accumulation and heating bulked double-layered-structure yarn warm-keeping knitted fabric. The production method comprises the following steps: selecting fiber raw materials; a knitted fabric production process flow specifically comprising the following steps: skeining yarns and dissolving vinylon: preparing bobbin yarns, reeling and skeining, dissolving the vinylon and carrying out hot water bulking treatment, washing, drying, spooling, knitting and dyeing and finishing a knitted fabric; dissolving the vinylon from the fabric: preparing the bobbin yarns, knitting, dissolving the vinylon and carrying out the hot water bulking treatment, washing and dyeing and finishing the knitted fabric. The total structure of the used yarn is a bulked double-layered-structure hollow yarn; firstly, the yarns are spun, and four types of short fibers including heat-accumulation and heating fibers, regenerated cellulose fibers, water-soluble vinylon and high shrinkage acrylic fibers are blended into the yarns; secondly, vinylon dissolving and bulking are carried out and the four-in-one blended yarns are subjected to hot water treatment and the water-soluble vinylon is dissolved; meanwhile, the high shrinkage acrylic fibers have irreversible heat shrinkage and bulking effect is generated so that the axial length of the yarns is shortened; other fibers are bulked and crinkled and hollow parts are formed in the middles of the yarns, so that the double-layered-structure yarns are obtained.

Description

technical field [0001] The invention belongs to the field of knitted fabric processing, and in particular relates to a production method of heat-storing heat-storing bulky double-layer structured yarn to keep warm knitted fabric. Background technique [0002] In the past, in order to improve the thermal insulation effect of knitted fabrics, the conventional method is to add layers and thicken the textile fabrics, which not only makes the fabrics thick and poor in air permeability, but also greatly affects the texture and wearing comfort of the fabrics. In the past two years, there have also been developments of light and thin thermal fabrics, but the physical properties and thermal performance of the products are often not ideal. For example, the development of thermal fabrics with hollow fibers only achieves warmth by preventing heat from escaping. Thermal fabric, although it can release heat, it does not achieve the best ability to prevent heat from escaping, resulting in...

AI Technical Summary

Problems solved by technology

[0002] In the past, in order to improve the thermal insulation effect of knitted fabrics, the conventional method was to add layers and thicken the textile fabrics, which resulted in thick fabrics and poor air permeability, and greatly affected the texture and wearing comfort of the fabrics.

In the past two years, there has also been the development of light and thin thermal fabrics, but the physical properties and thermal performance of the products are often not ideal

For example, the development of thermal fabrics with hollow fibers only achieves warmth by preventing heat from escaping. Thermal fabric, although it can release heat, it does not achieve the best ability to prevent heat from escaping, resulting in the failure to achieve the best thermal effect in the end

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