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A kind of elastic composite non-woven fabric and its production process

A non-woven fabric and elastic technology, applied in the field of elastic composite non-woven fabric and its production process, can solve the problems of insufficient firmness, weakened interaction force, loss of tensile ductility, etc., and achieve short production process and good Effects of elasticity, enhanced strength and toughness

Active Publication Date: 2020-11-10
北京安信乐布医疗用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the traditional non-woven fabrics are directly combined by multi-layer non-woven fabrics. Since the non-woven fabrics are mostly composed of short fibers and filaments arranged randomly, the short fibers in the non-woven fabric formed after absorbing water and swelling The interaction force between filaments and filaments is sharply weakened, resulting in the loss of tensile ductility, and the disadvantage of being easy to break when stretched
At the same time, the wear resistance of ordinary non-woven fabrics is poor, and the stiffness cannot meet the requirements

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

[0049] A kind of elastic composite non-woven fabric, its production process comprises the steps:

[0050] (1) Blending and melting: 50 parts of polypropylene, 15 parts of ethylene propylene semi-crystalline copolymer, 8 parts of EPDM rubber, 8 parts of polyurethane rubber, 8 parts of flax fiber, 3 parts of fatty alcohol, nano-B 38 0.5 part of the cluster enters the screw groove of the screw extruder from the feeding port, and the raw materials are conveyed and mixed through the screw of the screw extruder, and the temperature of the raw materials rises during the conveying process and gradually melts, so that the materials are fully fused form a melt;

[0051] The temperature of the first to sixth zone of the screw extruder is: 145°C in the first zone, 150°C in the second zone, 155°C in the third zone, 160°C in the fourth zone, 165°C in the fifth zone, and 170°C in the sixth zone;

[0052](2) Spinning: The melt is pushed into the spinning box, and the spinning box distributes...

Embodiment 2

[0061] A kind of elastic composite non-woven fabric, its production process comprises the steps:

[0062] (1) Blending and melting: 55 parts of polypropylene, 18 parts of ethylene propylene semi-crystalline copolymer, 10 parts of EPDM rubber, 10 parts of polyurethane rubber, 9 parts of ramie fiber, 4 parts of fatty alcohol, nano-B 38 0.8 parts of the clusters enter the screw groove of the screw extruder from the feeding port, and the raw materials are conveyed and mixed through the screw of the screw extruder, and the temperature of the raw materials rises during the conveying process and gradually melts, so that the materials are fully fused form a melt;

[0063] The temperature of the first to sixth zone of the screw extruder is: 148°C in the first zone, 153°C in the second zone, 158°C in the third zone, 163°C in the fourth zone, 168°C in the fifth zone, and 173°C in the sixth zone;

[0064] (2) Spinning: The melt is pushed into the spinning box, and the spinning box distri...

Embodiment 3

[0073] A kind of elastic composite non-woven fabric, its production process comprises the steps:

[0074] (1) Blending and melting: 60 parts of polypropylene, 20 parts of ethylene propylene semi-crystalline copolymer, 12 parts of EPDM rubber, 12 parts of polyurethane rubber, 10 parts of abaca fiber, 5 parts of fatty alcohol, nano-B 38 One part of the cluster enters the screw groove of the screw extruder from the feeding port, and the raw materials are conveyed and mixed through the screw of the screw extruder, and the temperature of the raw materials rises during the conveying process and gradually melts, so that the materials are fully fused form a melt;

[0075] The temperature of the first to sixth zone of the screw extruder is: 150°C for the first zone, 155°C for the second zone, 160°C for the third zone, 165°C for the fourth zone, 170°C for the fifth zone, and 175°C for the sixth zone;

[0076] (2) Spinning: The melt is pushed into the spinning box, and the spinning box ...

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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Abstract

The invention discloses an elastic composite non-woven fabric. The elastic composite non-woven fabric is prepared from the following raw materials in parts by weight: 50-60 parts of polypropylene, 15-20 parts of ethylene propylene hemicrystalline copolymer, 8-12 parts of ethylene propylene diene monomer, 8-12 parts of polyurethane rubber, 8-10 parts of plant fibers, 3-5 parts of fatty alcohol, 10-15 parts of a binder and 0.5-1 part of nano B38 clusters. The invention further discloses a production process of the non-woven fabric. The production process comprises the following steps: (1) blending fusion; (2) spinning; (3) cooling and forming; (4) preparation of a fiber mesh; (5) spraying; (6) drying at low temperature; and (7) aftertreatment. The polypropylene and the ethylene propylene hemicrystalline copolymer are used as base materials, and by addition of the ethylene propylene diene monomer and the polyurethane rubber, the obtained non-woven fabric has special strength and good elasticity; meanwhile, a proper amount of plant fibers are added in the raw materials, and thus, the strength and toughness of the prepared non-woven fabric are improved; and the elastic composite non-woven fabric is short in production process and easy to process, and is more environmentally friendly than another elastic product.

Description

technical field [0001] The invention belongs to the technical field of non-woven fabrics, and in particular relates to an elastic composite non-woven fabric and a production process thereof. Background technique [0002] Non-woven fabrics, also known as non-woven fabrics, are composed of directional or random fibers. They are a new generation of environmentally friendly materials. Low cost, recyclable and so on. For example, polypropylene (pp material) pellets are mostly used as raw materials, which are produced by continuous one-step process of high-temperature melting, spinning, laying, and hot-pressing coiling. It is called cloth because of its appearance and certain properties. [0003] Non-woven fabrics are commonly known as non-woven fabrics. It is a non-woven fabric formed by directional or random arrangement of short fibers or filaments to form a web structure, and then reinforced by mechanical, hot rolling or chemical methods. Absorbent non-woven fabric is a kind...

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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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/4382D04H1/485D04H1/60D01D5/08D01D5/088D01F8/16D01F8/06D01F8/02D01F1/10
CPCD01D5/08D01D5/088D01F1/10D01F8/02D01F8/06D01F8/16D04H1/4382D04H1/485D04H1/60
Inventor 姚启明
Owner 北京安信乐布医疗用品有限公司