Degradable environment-friendly flocculus material and preparation method thereof

Abstract

The invention relates to a degradable environment-friendly flocculus material and a preparation method thereof and belongs to the technical field of bedding and clothing filling materials. The degradable environment-friendly flocculus material comprises, by weight, 40-80% of kapok fibers, 12-36% of hollow polylactic acid fibers and 8-24% of polylactic acid sheath core fibers, and is characterized in that the linear density, the length and the melting point of the hollow polylactic acid fibers are 4-10D, 38-76mm and 160-170 DEG C respectively; the linear density, the length, the sheath melting point and the core melting point of the polylactic acid sheath core fibers are 1.5-2D, 38-76mm, 100-135 DEG C and 160-170 DEG C respectively. Reasonable equilibrium points are found out in the aspects such as stereostructure stability, strength, filling power, breathability, breathability warmth, elastic recovery rate, economic rationality and unit weight; since the three raw materials are beneficial and harmless to human health, green and environment friendly and completely degradable and can be embedded or used as compost directly after being discarded, so that the environment is protected beneficially.

Description

technical field [0001] The invention belongs to the technical field of clothing filling materials, in particular relates to a degradable and environment-friendly flake material, and also relates to a preparation method thereof. Background technique [0002] The wadding material obtained by mixing kapok fiber with chemical fiber can be used for filling such as bedding and winter clothes, and has good light weight, warmth retention and resilience, so it is favored by the industry. The typical literature disclosure of this type of flake material is as "a kind of manufacturing method of kapok batting" recommended by the Chinese invention patent authorization announcement number CN100383307C. The raw materials used in this patent scheme are: 25-90% natural kapok fiber, 5-40 % of low-melting fiber and 1-70% of chemical fiber; another example is "Kapok flakes and its production method" provided by Chinese invention patent application publication number CN101177844A, the raw materia...

AI Technical Summary

Problems solved by technology

[0006] Although the above-mentioned CN101509175B can realize the technical effects summarized in paragraphs 0033 to 0038 of its description, objectively there are the following shortcomings: First, the thickness and linear density data provided by the patent’s embodiments 1 to 7 show that its gram weight is 200g / m 2 , The thickness is about 4.4 mm, so it has good environmental protection and warmth retention compared with needle-punched non-woven fabrics or felts, but it is not suitable for use as fillers (fillers) for bedding and winter clothes, because the flocs in the bedding In the case of the same material and the same gram weight, its thickness is proportional to the warmth retention property. The winter quilt wadding weight of the pure fiber quilt currently used in the family is 400g / m 2 Left and right, thickness 40-50㎜, spring and autumn quilt weight 200g / m 2 , thickness 25-30mm, summer quilt (air conditioner quilt) weight 100-150g / m 2 , thickness of 15-20mm, so CN101509175B belongs to the category of felt cloth; secondly, from the point of view of form, the three raw materials given in this patent have some inspiration for obtaining flake materials, but this is not the case in reality, because if you want to use them Forming flake materials, there are at least the following technical factors that need to be explored in depth: first, it is necessary to determine the relationship between the content of kapok fiber and its warmth retention, and then determine the different proportions and weights in different seasons; the second is to use Reasonable processing technology can make the flake fluffy to the maximum extent and can make polylactic acid fiber and kapok fiber have sufficient hot-melt bonding, so that the surface single fiber is not easy to fall off; the third is to reduce processing energy consumption and processing cost, as known in the industry , the tensile strength of needle-punched non-woven fabrics is much greater than that of flakes. CN101509175B uses three kinds of fibers to go through acupuncture, and its tensile strength has significantly exceeded the strength requirements of flakes. Stiffer, it forms a felt board, wasting energy and increasing costs

[0007] The applicant has done extensive literature search, but all do not find in the patent disclosed so far and non-patent literature such as paper, the mixed fiber that polylactic acid fiber is mixed with kapok fiber is directly used as the wadding material that clothes are filled For this reason, the applicant has made persistent and beneficial explorations, and finally formed the technical scheme to be introduced below

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