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Long-acting controlled-release sheath-core type aromatic filament

A skin-core, slow-release technology, applied in filament/thread forming, conjugated synthetic polymer rayon, chemical post-treatment of synthetic polymer rayon, etc. waste etc.

Inactive Publication Date: 2012-07-18
SHANGHAI VITA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But precisely because of its characteristics, the aromatic fiber produced by this method is only suitable for short fibers. If long filaments are produced, the fragrance will be wrapped by the cortex and cannot escape, and the fragrance effect will be lost.
In addition, once the aromatic short fibers produced by this method are formed, the fragrance will continue to escape during post-processing and storage, resulting in waste of fragrance and reduced effect.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The following examples will help to understand the present invention, but do not limit the scope of the present invention. It should be understood that after reading the content taught by the present invention, various equivalent modifications to the present invention made by those skilled in the art also belong to the protection scope of the present invention.

[0015] Example 1

[0016] The polyester and water-soluble polyester are dried and fed into the skin layer screw extruder, and the polypropylene and aromatic agent are dried and fed into the core layer screw extruder, wherein the weight ratio of the skin layer to the core layer is 70:30, and the polyester of the skin layer and the core layer are The weight ratio of water-soluble polyester is 85:15, the content of aromatic agent in the core layer accounts for 2% of the total weight of the fiber, the melting temperature of the skin layer and the core layer screw are 280°C and 230°C respectively, and input into the...

Embodiment 2

[0018] The polyester and water-soluble polyester are dried and fed into the skin layer screw extruder, and the polypropylene and aromatic agent are dried and fed into the core layer screw extruder, wherein the weight ratio of the skin layer to the core layer is 50:50, and the polyester of the skin layer and the core layer are The weight ratio of water-soluble polyester is 95:5, the content of aromatic agent in the core layer accounts for 15% of the total weight of the fiber, the melting temperature of the skin layer and the core layer screw are 290°C and 240°C respectively, and input into the two-component spinning composite box (The temperature of the spinning box is 275°C). After being measured by the metering pump, it is extruded from the sheath-core spinneret, cooled and oiled by the surrounding air, and the tow is wound (speed 2500m / min) to obtain POY, which is stretched and stretched. Finally (drawing temperature 160 ℃, drafting ratio 1.5 times) reel, make sheath-core com...

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PUM

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Abstract

The invention relates to a long-acting controlled-release sheath-core type aromatic filament. A preparative technology for the long-acting controlled-release sheath-core type aromatic filament comprises the following steps of: respectively feeding materials into to sheath-core spinneret plate components by using two screw extruders, wherein the components of a sheath-layer are polyester and water-solubility polyester, and the components of a core layer are polypropylene and aromatic; fusing and compounding spun yarns according to certain proportions, and preparing the sheath-core type compounded filament after carrying out a post-processing technology on the spun yarns. A textile manufactured by the aromatic filament with the skin-core structure prepared by the method only needs to be processed by aqueous alkali so that lots of grooves, micropores and through holes can be formed on the surfaces of fibers, the fragrance of the aromatic is slowly and outwardsemitted through the through holes of the sheath-layer, thereby the long-acting controlled-release effect is achieved; and the long-acting controlled-release sheath-core type aromatic filament can be widely applied to the field of spinning clothes.

Description

technical field [0001] The invention relates to an aromatic fiber, in particular to a method for preparing a long-acting slow-release composite aromatic filament with a sheath-core structure. Background technique [0002] Traditional aromatic fibers are coated to adhere spices to the surface of the fibers. The fragrance fiber produced by this method will drop the fragrance after washing several times, and the fragrance will disappear quickly. [0003] At present, the aromatic fiber is mainly produced by the composite spinning method, which has an obvious skin-core structure, and the aromatic agent exists in the core layer. For example, the composite short fiber with skin-core structure developed by Shanghai Jinshan Petrochemical Company, after the fiber is formed, the fragrance can only gradually escape from the cross-section of the two ends of the fiber, so it can achieve the effect of lasting fragrance. But precisely because of its characteristics, the aromatic fiber pro...

Claims

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Application Information

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IPC IPC(8): D01F8/14D01F8/06D01F1/10D01F11/04D01F11/08D01D5/08D01D5/34
Inventor 赵茂成张娜张欣钱君杰曾彬雅庄荣利
Owner SHANGHAI VITA SCI & TECH
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