CN205295595U

CN205295595U - Aramid fiber covering yarn

Info

Publication number: CN205295595U
Application number: CN201520494774.4U
Authority: CN
Inventors: 尤秀兰; 尤松; 陈洪新
Original assignee: SHANGHAI LANBANG INDUSTRY FIBRE Co Ltd
Current assignee: SHANGHAI LANBANG INDUSTRY FIBRE Co Ltd
Priority date: 2015-07-09
Filing date: 2015-07-09
Publication date: 2016-06-08
Anticipated expiration: 2025-07-09

Abstract

The utility model discloses an aramid fiber covering yarn, a serial communication port, be in including core and compound twisting aramid fiber yarn on the core constitutes, aramid fiber covering yarn's yarn count is ne2 -50. The utility model discloses an aramid fiber covering yarn can extensively be used for resistant cutting, multiple protection field such as fire -retardant, high temperature resistant.

Description

A kind of aramid fiber covering yarn

Technical field

This utility model relates to textile technology field, particularly to a kind of aramid fiber covering yarn.

Background technology

Aromatic polyamide fibre is the synthetic fibers prepared for raw material through polycondensation, spinning with aromatic diamine and acyl chlorides, is called for short aramid fiber. Principal item has PPTA (abbreviation p-aramid fiber) and poly(isophthaloyl metaphenylene diamine) (abbreviation meta-aramid), p-aramid fiber is applied mainly as high-strength high-modulus fibre, and meta-aramid is primarily used to refractory fibrous material, aramid fiber is one of special fibre that in global range, total quantity consumed is maximum.

Aramid yarn and covering yarn thereof are its a kind of important application modes. But aramid fiber is in the process of spinning, owing to the cohesive force between fiber and fiber is poor and adds and is easily generated electrostatic buildup man-hour, cause that combing difficulty is higher, easily twine easily stifled etc. problem, cause that fiber yarn forming filoplume is more, especially the impact of aramid fiber covering yarn being become apparent from, the presentation quality often making processing comparatively difficulty and the goods of later process is not high.

Luo Shuhua et al. proposes the compact spinning apparatus adopting traditional negative pressure induced-draft in " development of aramid fiber 1313 compact spinning " literary composition have been attempted spinning meta-aramid, achieve good effect, the Yarn filoplume of spinning significantly reduces, such that it is able to improve the class of inflaming retarding fabric.

So-called compact spinning spins also known as gathering, is on spun yarn equipment, separately adds a tight concentration zones after drafting system, makes fibre bundle when twisting resultant yarn, eliminates resultant yarn trigonum. Harmful filoplume that its result is yarn greatly reduces, and the brute force of yarn is improved, make subsequent technique easily, cost reduces, production efficiency improves, fabric appearance investigation.

But " development of aramid fiber 1313 compact spinning " literary composition proposes adopt the compact spinning apparatus of traditional negative pressure induced-draft to there is some problem following: the structure of (1) negative pressure induced-draft compact spinning is complicated, it is relatively big to take up space, synchronize the very difficult of assembling cored device smooth operation; (2) congregational rate of Yarn filoplume is obvious by the impact of negative pressure value size, and the negative pressure value size between each ingot need to ensure unanimously, needs special messenger to be responsible for testing to reduce ingot difference to each ingot; (3) operation cost is high, because this technique needs to operate under subnormal ambient, causes that energy consumption increases; (4) the grid apron of this compact spinning apparatus or the minute aperture of mesh drum easily block in process of production.

Utility model content

The purpose of this utility model is in that the weak point existing for above-mentioned aramid yarn provides a kind of aramid fiber covering yarn. This aramid fiber covering yarn can be widely used for cut resistant, the multiple protection field such as fire-retardant, high temperature resistant.

To achieve these goals, the technical scheme that this utility model adopts is as follows:

Aramid fiber covering yarn, including core and composite twist, the aramid fiber yarn on described core is constituted, and the yarn count of described aramid fiber covering yarn is Ne2-50.

In a preferred embodiment of the present utility model, the yarn count of described aramid fiber covering yarn is Ne5-40.

In a preferred embodiment of the present utility model, described core is positioned at the center of described aramid fiber yarn.

In a preferred embodiment of the present utility model, described core is elastic filament material or inorganic rigid filamentary material.

In a preferred embodiment of the present utility model, described elastic filament material is spandex continuous yarn or adds bullet Tynex.

In a preferred embodiment of the present utility model, described inorganic rigid filamentary material is the one in glass fibre, stainless steel fibre, basalt fibre.

In a preferred embodiment of the present utility model, described aramid fiber is p-aromatic polyamide fiber or meta-aromatic polyamide fiber.

Owing to have employed technical scheme as above, aramid fiber covering yarn of the present utility model can be widely used for cut resistant, the multiple protection field such as fire-retardant, high temperature resistant.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model aramid fiber covering yarn.

Detailed description of the invention

Referring to Fig. 1, the aramid fiber core-spun yarn 10 of preparation includes core 11 and the composite twist aramid fiber yarn 12 on core 11 and constitutes.

This utility model is described in detail below by way of specific embodiment.

The following description, for non-limitative illustration this utility model, does not constitute the restriction to this utility model scope.

The material that following example are selected is after the p-aramid fiber chopped fiber to 51mm carries out antistatic and soft treatment, after blowing, comb and parallel cotton fibers prior to spinning, drafting, spins the rove bar of quantification of 5.1g/10m, standby.

Comparative example 1

By the rove bar of standby quantification of 5.1g/10m, on the conventional spinning frame not having grafting compact spinning apparatus, spinning 30Ne, it is as shown in table 1 that single thread twisting count is that 857TPM. surveys the performance of its yarn.

Embodiment 1

Except the front leather roller of the spinning frame spinning aramid fiber in examples detailed above 1 is taken off, change machinery compact spinning apparatus and be loaded on front leather roller. Other work technological parameter is constant, utilizes the rove bar of quantification of 5.1g/10m, has spinned 30Ne, and obtaining single thread twisting count is 871TPM, surveys performance such as table 1. of its yarn

Comparative example 2

Rove bar by standby quantification of 5.1g/10m, it is being furnished with on the cored device spinning frame without grafting compact spinning apparatus, selecting diameter is that the stainless steel fibre of 0.05mmr is as core, profit has accurate guide wheel transmission and controls it and be precisely directed to rove bar center, converge at yarn feeding jaw A with it, spinning 12Ne p-aramid fiber covering yarn, yarn twisting count is 486TPM, and test yarn performance is as shown in table 2.

Embodiment 2

Rove bar by standby quantification of 5.1g/10m, on the spinning frame being furnished with cored device grafting compact spinning apparatus, selecting diameter is that the stainless steel fibre of 0.05mmr is as core, profit has accurate guide wheel transmission and controls it and be precisely directed to rove bar center, converge at yarn feeding jaw A with it, spinning 12Ne p-aramid fiber covering yarn, yarn twisting count is 499TPM, and test yarn performance is as shown in table 2.

Table 1 comparative example 1 compares with embodiment 1 yarn property

Table 2 comparative example 2 compares with embodiment 2 yarn property

Claims

1. aramid fiber covering yarn, it is characterised in that including core and the composite twist aramid fiber yarn on described core and constitute, the yarn count of described aramid fiber covering yarn is Ne2-50; Described core is positioned at the center of described aramid fiber yarn; Described core is inorganic rigid filamentary material; Described inorganic rigid filamentary material is the one in glass fibre, stainless steel fibre, basalt fibre.