A kind of production technology of wear-resistant pa6 bulky yarn

Abstract

The invention discloses a production process of abrasion-resisting PA6 bulked yarns. The production process of the abrasion-resisting PA6 bulked yarns is characterized by comprising the following steps of 1 extruding and melting solid PA6 slices with the relative viscosity ranging from 2.60 to 2.90 in a screw extruder at the temperature of 250-280 DEG C to form molten-state spinning melts and then conveying the spinning melts into a spinning box body; 2 forming high pressure in a spinning module, spraying the melts through a spinneret plate to form continuous filaments and cooling the filaments through lateral air blowing; 3 cooling cured filaments and putting the filaments into an oiling device to be oiled, wherein the oiling rate is controlled to be 0.4-0.6%; 4 feeding the oiled filaments into a drafting area to be draught, wherein the drafting rate is 1.6-2.2; 5 feeding draught filaments into a bulking box to be subjected to bulking treatment, wherein technological parameters of the bulking box are that the temperature of the bulking box for bulking the filaments is 150-200 DEG C, compressed air for feeding is 7.0-9.0 bar, and the suction air negative pressure for fixing and piling up the filaments in the bulking box to enable the filaments to be bulked is 50-80 mbar; 6 conveying the filaments into a cooling drum to be cooled, wherein the rotating speed of the cooling drum is 50-80 turns / min, and the suction air negative pressure for cooling of the cooling drum is 15-35 mbar; 7 feeding the filaments having passed through a first set of filament guiding discs into a main network system, and feeding the filaments having passed through the main network system into a winding machine to be cylindrical filament drums through winding.

Description

technical field [0001] The invention relates to a preparation process of a wear-resistant PA6 bulking yarn. Background technique [0002] Commercial carpet is one of the main application markets for carpet products. In its long-term development process, designers have spent a lot of energy on fashion effects such as the color tone and pattern of the carpet, while ignoring the practicality of the carpet itself, Durability and product life, in some large hotels, restaurants and meeting places of hotels, due to the large number of people and the frequent use of carpets, many carpets will have defects such as wear, fluff, faded color, and deformation of color, which will reduce the overall effect of the carpet and force the carpet. The owners had to replace the carpets in a short period of time, which greatly increased their business costs. Therefore, a practical, wear-resistant carpet has become the latest market demand for commercial carpets. The wear resistance of carpets h...

AI Technical Summary

Problems solved by technology

[0002] Commercial carpet is one of the main application markets of carpet products. During its long-term development, designers have spent a lot of energy on the fashion effects such as the color tone and pattern of the carpet, while ignoring the practicability of the carpet itself. Durability and product life, in some large hotels, hotel restaurants, and meeting places, due to the large number of people and the frequent use of carpets, many carpets will have local defects such as wear, fluff, color fading, and design and color deformation, which will reduce the overall effect of the carpet. The owner has to replace the carpet in the short term, which adds significantly to the cost of their business

Images