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A non-woven fabric and elastic technology, which is applied in the field of elastic non-woven fabric and its preparation, can solve the problems of insufficient elasticity of ordinary non-woven fabrics, and achieve the effect of improving flexibility and elasticity, good fineness and uniformity, and uniform cooling
Inactive Publication Date: 2017-05-10
ZHANGJIAGANG JUNMA NON WOVEN CO LTD
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Abstract
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the defects of insufficient elasticity of ordinary non-woven fabrics in the prior art, and provide a kind of elastic non-woven fabric and its preparation method
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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Effect test
Embodiment 1
[0018] The melt index of the polypropylene raw material is 25g / 10min, the proportioning is 30% (weight percentage, the same below), the flexible regulator (softening agent, Suzhou Zhumoto, nw-4028, the same below) proportioning is 3%, ethylene The content is 10% ethylene-propylene copolymer elastomer melt index is 40g / 10min, and the mixing ratio is 67% and is spun to obtain the sample 40g / m 2 Elastic non-woven fabric.
Embodiment 2
[0020] The melt index of the polypropylene raw material is 35g / 10min, the proportion is 18%, the proportion of the flexible regulator is 2%, and the ethylene content is 15%. The melt index of the ethylene-propylene copolymer elastomer is 30g / 10min, and the proportion is 80%. The material is spun to make a sample 60g / m 2 Elastic non-woven fabric.
Embodiment 3
[0022] The melt index of the polypropylene raw material is 45g / 10min, the proportion is 49%, the proportion of the flexible regulator is 1%, the ethylene content is 20% and the melt index of the ethylene-propylene copolymer elastomer is 35g / 10min, and the proportion is 50%. The material is spun to make a sample 80g / m 2 Elastic non-woven fabric.
[0023] Above-mentioned each spinning process is as follows:
[0024] (1) The polypropylene chips, the flexible regulator and the ethylene-propylene copolymer elastomer are mixed according to the proportioning ratio, and stirred and mixed evenly;
[0025] (2) Feed the obtained mixture into the screw extruder, heat, melt, plasticize and mix, then transport the material to the spinning die for spinning, and use slit positive pressure drafting and side blowing to cool to form filaments ;
[0026] (3) The cooled filaments are sucked into the drafter under the negative pressure of the drafter inlet, and are laid to the net curtain to for...
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 relates to elastic nonwoven, and belongs to the technical field of nonwoven. The elastic nonwoven is prepared from, by weight, 50-80% of ethyl propylene coelastomer, 17-49% of polypropylene chips and 1-3% of flexibility modifier. The preparing method comprises the steps of mixing the polypropylene chips, the flexibility modifier and ethyl propylene coelastomer in proportion, and stirring and mixing the mixture to be uniform; feeding the mixture into a screw extruder and conducting melting plastification mixing through heating, then conveying the material into a spinning die to be subjected to spinning, and adopting narrow-gap positive pressure drafting and sideblowing cooling to form strands; after the strands cool down, making the strands sucked into a drafting machine under the negative pressure of the inlet of the drafting machine, and conducting cross lapping with the subsidiary of a suction ventilator below a web curtain to form a fluffy fiber layer; using a sealing roller to conduct prepressing and sizing on the fluffy fiber layer, afterwards using a hot mill to conduct hot milling adhesion reinforcing to form the elastic nonwoven. According to the elastic nonwoven and preparing method thereof, the problem that the nonwoven is low in ductility is solved; meanwhile, flexibility and elasticity of the nonwoven are improved.
Description
technical field [0001] The invention belongs to the technical field of non-woven fabrics, and in particular relates to an elastic non-woven fabric and a preparation method thereof. Background technique [0002] With the development of society and the advancement of technology, non-woven fabrics are gradually replacing traditional materials to expand new application fields. Due to their good air permeability, non-woven fabrics are safe and non-irritating to the skin, and are widely used in disposable medical products and hygiene products. Supplies field. However, ordinary non-woven products have poor elongation performance, rough surface, stiff hand feeling, and poor fit when in contact with the skin will cause tingling or burning sensation, which limits the application of materials in new fields. Therefore, it is necessary to develop silky and high-elastic non-woven fabrics to achieve good skin contact and comfort, and to have the comfort of silk natural fibers to make up f...
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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