CN204125637U

CN204125637U - A kind of wrap yarn

Info

Publication number: CN204125637U
Application number: CN201420058160.7U
Authority: CN
Inventors: 江魁; 丁一洝; 何姗; 李文静; 陈光林
Original assignee: Jiaxing University
Current assignee: Jiaxing University
Priority date: 2014-01-28
Filing date: 2014-01-28
Publication date: 2015-01-28
Anticipated expiration: 2024-01-28

Abstract

The utility model patent discloses a kind of wrap yarn, and inner core material selects ramee long filament, and the polylactic acid PLA fiber of different thicknesses selected by outer cladding fiber, adopts the coated mode of double helix.Feature is that covered fiber adopts the PLA of different fineness, and wrap yarn surface has significantly concavo-convex, and the fiber double helix of different thicknesses is coated adds clad ratio, in the burr of inner core ramee is coated on completely, avoids scratchy.And concavo-convex obvious yam surface be conducive to moisture absorption breathe freely, the ramee of inner core still has the performances such as antibacterial bacteriostatic, deodorizing absorption, mildew-resistant through the hole of wrap yarn, add drapability, slipping, faintly acid etc. that polylactic acid PLA fiber has, allow skin be physically or be biologically all in more comfortable.Raw material are natural reproducible, biodegradable plant, meet the requirement of international community's sustainable development, have extensive promotional value.

Description

A kind of wrap yarn

Technical field

The utility model patent relates to a kind of wrap yarn, and particularly the wrap yarn of ramee long filament is covered in the double-contracting of PLA fiber, belongs to spinninging technical field.

Background technology

Ramie is China's special product, is described as " China's grass, middle national treasure " by the world.Ramee sucting wet air permeability is the 3-5 doubly left and right of cotton fiber, and simultaneously containing giving repeated exhortations, pyrimidine, the beneficial elements such as purine, having the functions such as antibacterial, ventilative, nice and cool, anticorrosion, mildew-resistant, absorbing sweat, is universally acknowledged " king of natural fabric ".Ramee has outstanding antibacterial bacteriostatic function, and the bacterium of same quantity is examined under a microscope, and bacterium can multiply in a large number in cotton, wool fibre goods, and the bacterium on ramie goods is killed about 75% after 24 hours.This is because ramee contain give repeated exhortations, the trace element such as pyrimidine, purine, inhibition is played to staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli etc., there is natural bacteriostatic, anti-mite, deodorant function.Prove through test, after 50 cyclic washings, its sterilization effect still reaches more than 98%, effectively can check the bacterium of textiles, acarid secondary pollution problem; Ramee has deodorizing adsorption function, and the inner special ultrafine micropore structure of ramee makes it have powerful adsorption capacity, formaldehyde in energy absorbed air, benzene, toluene, and the harmful substances such as ammonia, eliminate bad smell.After Exposure to Sunlight, the harmful substance of absorption can be vapored away, make its adsorption function automatic regeneration; Ramee has moisture absorption airing function, its exclusive active cavity leads sweat fibre structure can make the sweat saturation of suction to deriving fast in cavity, allowed it possess superior gas permeability and conductivity of heat, water suction is many and loose wet fast, has the cooling feeling making people very pleasantly surprised; Ramee has mildew-resistant wear-resisting functions, ramee is very tough and tensile, brute force is large and ductility is little, add and be not subject to mold corrosion and damage by worms, be described as " not rotten soft gold in thousand ", the field such as be thus widely used in flight parachute, safety rope, family are spun, has superpower mildew-resistant wear-resisting functions, extends the service life of article well.

But the bending rigidity of ramee is large, and the relative bending stiffness of ramee is 9.32 × 104.cN.cm2, is maximum in all common fibers, even be greater than glass fibre 8.54 × 104.cN.cm2, fiber is firm, and have obvious burr sense, when wearing next to the skin, comfortableness is very poor.

Summary of the invention

In order to solve this shortcoming above-mentioned, a kind of biodegradable double helix wrap yarn of invention, it is characterized in that: select flax fibre long filament (1) as the inner core material of wrap yarn, flax fibre is ramee, fineness is 36S, by wrap yarn double-contracting technology on the surface of flax fibre long filament (1) with the helical form looping PLA fiber (2) of equidirectional and PLA fiber (3), PLA fiber (2) and PLA fiber (3) for cornstarch be raw material, lactic acid is become again through polymerization through microbe conversion, spinning and the acid fiber by polylactic made, PLA fiber (2) fineness is 60S, PLA fiber (3) fineness is 30S, wrap yarn technique is double-contracting technology, and the twist is 5-20 twist/m, twists with the fingers and twists with the fingers to for Z, the outer PLA fiber of wrap yarn that this patent is announced, due to the fiber that wrapped yarn is different fineness, form different looping height, yam surface has significantly concavo-convex, and the fiber double helix of different thicknesses is coated adds clad ratio, in the burr of inner core ramee is coated on completely, avoid scratchy.And concavo-convex obvious yam surface be conducive to moisture absorption breathe freely, the ramee of inner core still has the performances such as antibacterial bacteriostatic, deodorizing absorption, mildew-resistant through the hole of wrap yarn, add drapability, slipping, faintly acid etc. that polylactic acid PLA fiber has, allow skin be physically or be biologically all in more comfortable.

Acid fiber by polylactic is the lactic acid polymer making Material synthesis with the lactic acid contained in human body, is perfectly safe for human body.After tested, the round pin made with zein fiber is weaved cotton cloth can not chafe, and useful to health, and has comfort.

PLA fiber adopts the plant resources of natural reproducible to be raw material, decrease the dependence to conventional petroleum resource, meet the requirement of international community's sustainable development, it has the advantage of synthetic fiber and natural fabric concurrently, the simultaneously complete natural circulation type all of tool and can biolytic feature again, compared with the fibrous material of routine, zein fiber also has the performance of many uniquenesses, so obtain the extensive attention of World Textile circle.

Along with the mankind are to the enhancing of earth protective awareness, lack of energy consciousness, awareness of safety and clothes health consciousness; and the continuous expansion of the large-scale industrial production of PLA resin and zein fiber Application Areas; being " the enviromental cycle material of 21 century " by numerous experts recommend, is a kind of ecological property fiber having development potentiality.

Accompanying drawing explanation

Accompanying drawing is the structural representation of a kind of wrap yarn of the utility model patent;

Detailed description of the invention

Performance of the present invention is described in detail below in conjunction with accompanying drawing, but their also paired not restrictions of the present utility model, only for example.

Take cornstarch as raw material, become lactic acid again through polymerization through microbe conversion, spinning and the polylactic acid fiber (2) made and polylactic acid fiber (3); Polylactic acid fiber (2) fineness is 60S, polylactic acid fiber (3) fineness is 30S, employing Z twists with the fingers the ramee long filament (1) that looping fineness is 36S, the twist is 10 twists/m, because outer layer fiber fineness is different, is mutually wound around, adds clad ratio, more effective to the coating function of ramee, avoid prodding and itching feeling.Fibre fineness difference also creates wrap yarn concave-convex surface shape structure, be conducive to moisture absorption to breathe freely, the ramee of inner core still has the performances such as antibacterial bacteriostatic, deodorizing absorption, mildew-resistant through the hole of wrap yarn, add drapability, slipping, faintly acid etc. that polylactic acid PLA fiber has, allow skin be physically or be biologically all in more comfortable state.

Claims

1. one kind can complete biolytic double helix wrap yarn, it is characterized in that: select flax fibre long filament (1) as the inner core material of wrap yarn, by wrap yarn double-contracting technology on the surface of flax fibre long filament (1) with the helical form looping PLA fiber (2) of equidirectional and PLA fiber (3), form the double helix wrap yarn that fineness is different, formed significantly concavo-convex on wrap yarn surface, this yarn skin has the two yarn of Z-direction and rotates.

2. wrap yarn as claimed in claim 1, is characterized in that: described flax fibre (1) is ramee; PLA fiber (2) and PLA fiber (3) are raw material for cornstarch, become lactic acid again through polymerization through microbe conversion, spinning and the acid fiber by polylactic made;

3. as claimed in claim 1, wrap yarn technique is double-contracting technology, and the twist is 5-20 twist/m, twists with the fingers and twists with the fingers to for Z;

4. as claimed in claim 2, it is characterized in that: described flax fibre (1) fineness is 36S; PLA fiber (2) fineness is 60S; PLA fiber (3) fineness is 30S, and the PLA fiber that thickness is different forms obvious concave/convex-shaped structure on wrap yarn surface.