Mulching film and preparation method thereof

A technology of mulch and floor cotton, applied in plant protection cover, textiles and papermaking, non-woven fabrics, etc., can solve the problems of soil, crop damage, chemical components cannot be eradicated, harm cannot be controlled, etc., to eliminate the use of adhesives , to achieve the effect of production cost, increased strength and density

Inactive Publication Date: 2012-06-27
熊泽金
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some degradation is only molecular cracking in the superficial sense, and the added chemical components still exist in the soil and cannot be eradicated. After long-term cracking and accumulation, the invisible chemical substances can cause harm to soil, groundwater sources and crops and cannot be controlled.
Although the raw materials of some manufacturers do have degradable conditions, in order to meet the relevant technical requirements of the mulch film, cooking or adding chemical additives for post-treatment is required during the production process, which will cause varying degrees of pollution to the surrounding environment. Due to the use of chemical Substances also pose serious hazards to soil and crops during use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of plastic film, concrete preparation steps are:

[0036] 1) Pulping stage

[0037] Put coniferous wood pulp fibers into the deflaking equipment for broomification, and after 20 minutes, add back-spun viscose fibers with a denier of 2.3 denier and a length of 6 mm, and floor-to-ceiling viscose fibers with a denier of 1.7 denier and a length of 2 mm. Cotton fiber, denier is 1.5 denier, and length is the PVA water-soluble fiber of 6 millimeters, carries out loosening, until all raw materials are dispersed evenly, obtain the mixed fiber that concentration is 10%,

[0038] Wherein, the dry matter weight ratio of the wood fiber, back-spun viscose fiber, floor cotton fiber and PVA water-soluble fiber is 50:20:10:20;

[0039] 2) In the slurry preparation stage, mix the mixed fibers with a concentration of 10% in step 1) with water, and further decompose to form fiber monofilaments, then pump the fiber monofilaments into the slurry storage tank, and transport them to th...

Embodiment 2

[0042] A kind of plastic film, concrete preparation steps are:

[0043] 1) Pulping stage

[0044] Put the hardwood pulp fiber into the deflaking equipment for broomification, and after 25 minutes, add the back-spun viscose fiber with a denier of 2.3 denier and a length of 10 mm, and a floor-to-ceiling viscose fiber with a denier of 1.8 denier and a length of 4 mm. Cotton fiber, denier is 1.5 denier, and length is the PVA water-soluble fiber of 10 millimeters, carries out loosening, until all raw materials are dispersed evenly, obtain the mixed fiber that concentration is 20%,

[0045] Wherein, the weight ratio of the wood fiber, back-spun viscose fiber, floor cotton fiber and PVA water-soluble fiber is 50:20:10:20;

[0046] 2) In the slurry preparation stage, mix the mixed fibers with a concentration of 20% in step 1) with water, further decompose to form fiber monofilaments, and then pump the fiber monofilaments into the slurry storage tank, and transport them to In the web...

Embodiment 3

[0049] A kind of plastic film, concrete preparation steps are:

[0050] 1) Pulping stage

[0051] Throwing fast-growing wood fibers into the deflaking equipment for broomification, after 15 minutes, add back-spun viscose fibers with a fineness of 2.3 denier and a length of 8 mm, and floor cotton with a fineness of 2.0 denier and a length of 8 mm Fiber, denier is 1.5 denier, and the PVA water-soluble fiber that length is 8 millimeters, carries out dispelling, until all raw materials are dispersed evenly, obtain the mixed fiber that concentration is 30%,

[0052] Wherein, the dry matter weight ratio of the wood fiber, back-spun viscose fiber, floor cotton fiber and PVA water-soluble fiber is 50:20:10:20;

[0053] 2) Mixing stage

[0054] Mix the mixed fibers with a concentration of 30% in step 1) with water, and further decompose to form fiber monofilaments, then pump the fiber monofilaments into the slurry storage tank, transport them to the web forming and shaping section thro...

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Abstract

The invention relates to a breathable and naturally-degradable mulching film and a preparation method thereof. The mulching film comprises the following raw materials in percentage by weight: 50 percent of wood fibers, 20 percent of reconstituted viscose fibers, 10 percent of ground cotton fibers and 20 percent of polyvinyl alcohol (PVA) water-soluble fibers. The preparation method comprises the following steps of: forming pulp, mixing the pulp, and forming a net. The mulching film is not added with any harmful chemical aid or adhesive during production, can be naturally degraded to form humus by a water-soluble fiber net formation curing technology after being used, and is non-toxic, harmless and pollution-free and can improve a soil structure after being degraded.

Description

technical field [0001] The invention relates to a mulch film and a preparation method thereof, in particular to a respirable, naturally degradable and environmentally friendly agricultural mulch film without adding any chemical adhesives and post-processing without adhesives or chemical auxiliaries and a preparation method thereof . Background technique [0002] While traditional PE mulch has made great contributions to agricultural production, it has also caused centuries-old pollution to soil and the environment due to its non-degradable chemical composition, which has brought serious harm to the sustainable development of agriculture. At present, although domestic and foreign manufacturers have made progress in the technical research of photodegradable mulch film and biodegradable mulch film, due to technical and raw material reasons, they have not been able to break through the problem of natural degradation. Some degradation is just molecular cracking in the superficia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/72D04H1/541A01G13/02
CPCY02A40/28
Inventor 吴玉才
Owner 熊泽金
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