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Preparation method of high-shrinkage orange slice type double-component spunbonded spunlace microfiber leather base cloth

A spunbond spunlace and two-component technology, applied in the field of nonwoven fabrics, can solve the problems of nonwoven fabrics such as flat and thin hand feeling, limited application range, and complicated process, so as to reduce spunlace energy consumption, facilitate complete shrinkage, and improve the hand feel. full effect

Active Publication Date: 2021-09-21
TIANJIN POLYTECHNIC UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the shortcomings of the hollow orange-shaped superfine fiber nonwovens prepared by two-component spunbond spunlace nonwovens in the field of microfiber leather are: The woven fabric feels flat and thin, lacks fullness and softness, so its application range is greatly limited
The above-mentioned processes are applied to traditional yarn fabrics, all of which require solvents to open the fiber and then shrink, the process is complicated, and it is not conducive to environmental protection

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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  • Preparation method of high-shrinkage orange slice type double-component spunbonded spunlace microfiber leather base cloth
  • Preparation method of high-shrinkage orange slice type double-component spunbonded spunlace microfiber leather base cloth
  • Preparation method of high-shrinkage orange slice type double-component spunbonded spunlace microfiber leather base cloth

Examples

Experimental program
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Effect test

preparation example Construction

[0027] The present invention provides a kind of preparation method (abbreviation method) of high-shrinkage segmental orange type two-component spunbonded spunlace superfiber leather base cloth, it is characterized in that, this method comprises the following steps:

[0028] (1) Add a hot air device 10 and a fiber crimping device 16 in the two-component spunbond / spunlace production line; according to the spinning direction, the hot air device 10 is installed between the web forming curtain 7 and the spunlace process, that is, the web forming curtain 7 (that is, the position after the fibers form the fiber web 9), and the front of the spunlace process; the fiber crimping device 16 is arranged between the pressing roller 15 and the drying box 18, that is, behind the pressing roller 15 and in front of the drying box 18 ;

[0029] (2) Two-component composite fiber is spun into a net: first, two kinds of polymers are formed into a two-component raw silk melt by conjugate spinning; ...

Embodiment 1

[0051] In this example, the HSPET-PA6 hollow orange segment two-component spunbonded spunlace superfiber leather base fabric is prepared, and the specific steps are as follows:

[0052] (1) Add the hot air device 10 and the fiber crimping device 16 into the two-component spunbond / spunlace production line, the hot air device 10 is installed behind the web curtain 7, and the fiber crimping device 16 is installed behind the pressure roller 15;

[0053] (2) Import HSPET and PA6 polymer slices into the drying tower for pre-crystallization and drying treatment respectively. After extruded and melted by a screw extruder and filtered by a melt filtration system, the compounding is completed in the two-component spinning assembly 4 Spinning, then cooled by side blowing, air drafting, and evenly laid on the netting curtain 7; the temperature of side blowing is 20°C, the relative humidity is 70%, the wind speed is 1m / s, and the drawing pressure is 0.55Mpa. The elongation speed is 5000m / m...

Embodiment 2

[0067] In this example, the HSPET-PA6 hollow orange segment two-component spunbonded spunlace superfiber leather base fabric is prepared, and the specific steps are as follows:

[0068] (1) Add the hot air device and fiber crimping device to the two-component spunbond / spunlace production line, the hot air device is installed behind the web curtain, and the fiber crimping device is installed behind the pressure roller;

[0069] (2) Import HSPET and PA6 polymer slices into the drying tower for pre-crystallization and drying treatment respectively. After extruded and melted by a screw extruder and filtered by a melt filtration system, the compounding is completed in the two-component spinning assembly 4 Spinning, then cooled by side air blowing, air drafting, and evenly laid on the web forming curtain 7; The elongation speed is 4000m / min, and the surface density of the fiber web is 120g / m 2 ;

[0070] The volume ratio of HSPET to PA6 melt is 5:5, the third monomer isophthalic a...

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Abstract

The invention discloses a preparation method of high-shrinkage orange slice type double-component spunbonded spunlace microfiber leather base cloth. The method comprises the following steps of firstly, adding a hot air device and a fiber crimping device in a double-component spunbond / spunlace production line, and then spinning double-component composite fibers into a web; conveying the fiber web into the hot air device for thermal shrinkage treatment, and enabling the double-component composite fibers to generate a split trend by utilizing thermal shrinkage of high-shrinkage components in the double-component composite fibers; enabling the double-component composite fibers to be split and mutually entangled through a spunlace technology; conveying the double-component composite fibers into a fiber crimping device, and performing shrinkage and crimping treatment on non-woven cloth by utilizing the fiber crimping device, so that the high-shrinkage components are completely shrunk and crimped, and the double-component spunbonded spunlace microfiber leather base cloth is obtained. The method is simple in technological process and low in production cost and energy consumption, green and clean preparation of the microfiber leather base cloth can be achieved through a one-step method, and the prepared hollow orange slice type double-component spunbonded spunlace leather base cloth has the characteristics of being compact, soft, stiff and smooth and full in hand feeling.

Description

technical field [0001] The invention relates to the field of non-woven fabrics, in particular to a preparation method of a high-shrinkage segmental orange-shaped two-component spun-bonded spunlace microfiber leather base cloth. Background technique [0002] The pie-shaped ultrafine fiber nonwoven fabric prepared by the two-component spunbond spunlace nonwoven technology solves the environmental pollution problem caused by the sea-island fiber dissolving and opening the ultrafine fiber nonwoven fabric. The process is simple and can be used The preparation of light, high-strength microfiber nonwoven fabric can be widely used in the fields of microfiber leather, filtration, wiping, etc., especially in the field of microfiber leather, which can realize the green and clean preparation of microfiber leather base cloth. Application No. 201710026839.6 uses hollow segmented orange-shaped two-component spunbond spunlace nonwoven fabric as the base fabric, and prepares spunbond filamen...

Claims

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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Application Information

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IPC IPC(8): D04H3/005D04H3/11D01D5/30D01D5/22D01D5/088D06C7/00
CPCD04H3/005D04H3/11D01D5/30D01D5/22D01D5/088D06C7/00
Inventor 钱晓明朵永超封严王闻宇秦贵昌赵孝龙张爱明
Owner TIANJIN POLYTECHNIC UNIV
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