Green totally degradable warming material and producing method thereof

A technology of complete degradation and production method, which is applied in the field of green fully degradable thermal insulation materials and its production, can solve the problems of low bending stiffness, non-compliance, and short length of kapok fibers, etc., to reduce production costs, reduce usage, and improve The effect of warmth retention

Inactive Publication Date: 2009-08-19
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] To sum up, in these research works, aiming at the short length of kapok fiber, low strength, poor cohesion, low bending stiffness and lack of elasticity, the softness, comfort and warmth of the product decay quickly with the passage of time, and the strength of the flakes There will be holes in the lower parts, and the lack of kapok fibers is made up for by adding chemical fibers with good rebound, bulkiness, high stiffness and good cohesion, but the kapok fibers are green and do not contain any pesticides. , it can be completely degraded after being discarded, but due to the addition of chemical fibers, the whole floc is a semi-environmental protection material. In nature, green in nature's environmental protection concept

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] First with 40 parts (weight ratio) kapok fiber, average length 20mm, average linear density 2dtex, 20 parts (weight ratio) polylactic acid bicomponent fiber, length 51mm, linear density 4.4dtex and 40 parts (weight ratio) polylactic acid hollow The fibers, length 76mm, linear density 7.7dtex, are uniformly mixed, then weighed, opened, mechanically combed, messy into a fluffy three-dimensional network structure fiber web, pre-acupuncture, and then hot-melted to form a good edible strength, cooled and coiled into a finished product.

[0042] The production process includes the following steps: Quantitative proportioning—cotton picking—cotton blending—weighing—pre-opening—metal impurity removal—multi-compartment blending—fine opening—airflow feeding—double Cylinder double doffer carding—fiber web disorder—cross-lapping—mechanical drafting—pre-needling—hot air drying and setting—cooling—automatic cloth storage—counting and coiling—semi-finished coils ——cloth inspection and...

Embodiment 2

[0045] First with 50 parts (weight ratio) kapok fiber, average length 20mm, average linear density 2dtex, 25 parts (weight ratio) polylactic acid bicomponent fiber, length 51mm, linear density 4.4dtex and 25 parts (weight ratio) polylactic acid hollow Fiber, length 102mm, linear density 11dtex evenly mixed, and then weighed - pre-opening - metal impurity removal - multi-compartment cotton blending - fine opening - airflow to cotton - double cylinder double doffer carding - —Messy fiber web—cross-lapping web—mechanical drafting—pre-needling—hot air drying and setting—cooling—automatic cloth storage—counting and winding—semi-finished coil—cloth inspection and cutting --Product packaging.

[0046] The parameters of the main working components are: the speed of the main cylinder work roll of the carding machine is 72.5m / min, the speed of the main cylinder stripping roller is 80m / min, the speed of the main cylinder is 720m / min, the number of cross-lapping layers is 2 layers, and th...

Embodiment 3

[0048] First, 45 parts (weight ratio) of kapok fiber, average length 20mm, average linear density 2dtex, 15 parts (weight ratio) polylactic acid bicomponent fiber, length 51mm, linear density 4.4dtex and 40 parts (weight ratio) polylactic acid hollow Fibers, length 76mm, linear density 7.7dtex are evenly mixed, evenly mixed, and then carried out according to the above-mentioned embodiment process.

[0049] The parameters of the main working parts are: the speed of the main cylinder work roll of the carding machine is 85m / min, the speed of the main cylinder stripping roller is 95m / min, the speed of the main cylinder is 790m / min, the number of cross-lapping layers is 2 layers, and the total traction The elongation ratio was adjusted to 2.15; the needle density was 3000 pieces / m, the acupuncture depth was 6.0mm, the acupuncture frequency was 550 needles / min, and the needle density was 50 needles / cm 2 ; The drying and setting temperature is 80°C.

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Abstract

A green completely-degradable warm-keeping material and a production method thereof are disclosed, the weight percent of components thereof are: 40-60 parts of kapok fiber, 10-40 parts of polylactic bi-component fiber and 15-40 parts of polylactic hollow fiber; the material is formed by pre-needling at first and then the procedures of hot-melt shaping, cooling, winding, etc. after a fluffy three-dimensional netlike structure fiber net is formed by cotton plucking, cotton mixing, weighting, opening, mechanical carding and disordering. The inventive warm-keeping material employs the completely-degradable raw materials and has no pollution in the entire production process, the product has multiple functions of excellent strength, fluffiness, warm keeping, bacteriostasis and the like, which belongs to green environmentally-friendly products.

Description

technical field [0001] The invention relates to a thermal insulation material and a production method thereof, in particular to a green fully degradable thermal insulation material and a production method thereof, which have good strength, bulkiness, warmth retention and resilience, and the porous structure of the material is stable and durable. Background technique [0002] my country is a large country with a population of 1.3 billion, and its demand for food and clothing ranks among the top in the world. However, the solid waste discharge behind the huge consumption is also very alarming. According to data, before the "plastic restriction order" was promulgated, in 2007 The annual consumption of plastic synthetic materials in China is more than 50 million tons. These materials are mainly disposed of in landfills after they are discarded, but it takes 100 to 200 years to degrade, and there are fewer and fewer alternative landfills. The processing cost is also increasing; on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/48D01D5/34D01D5/24D01F8/14D01F6/62D04H1/425D04H1/435D04H1/4382D04H1/4391D04H1/485
Inventor 钱程
Owner JIAXING UNIV
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