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Method for producing degradable mulching film paper by utilizing bamboo pulp

A technology for degrading mulch and bamboo pulp, which is applied in the field of pulp and paper making, can solve the problems of limited sources of raw materials for degradable mulch and paper, and achieve the effects of being conducive to coordinated development, smooth and beautiful appearance, and good heat sealability

Pending Publication Date: 2021-03-05
江西中竹生物质科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the technical defects of the prior art, and provides a method for producing degradable mulch paper by using bamboo pulp, so as to solve the technical problem that the source of raw materials for degradable mulch paper is relatively limited

Method used

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  • Method for producing degradable mulching film paper by utilizing bamboo pulp
  • Method for producing degradable mulching film paper by utilizing bamboo pulp
  • Method for producing degradable mulching film paper by utilizing bamboo pulp

Examples

Experimental program
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Embodiment 1

[0066] like figure 1 , figure 2 , as shown in table 1: choose cheap, widely sourced moso bamboo, green bamboo or clumping bamboo as basic raw material of bamboo pulp; enter the cooking pot and cook after the qualified bamboo chips of 6-45mm are screened by slicing; The ratio of weight ratio to water is 1:3.6 and the washing liquid after pulp washing is mixed and stirred with bamboo pulp, in which the moisture of bamboo chips accounts for 52%; steam is gradually added to the cooking pot to the set temperature, and the temperature change process and time Including: increasing the temperature from 70°C to 120°C by adding the amount of steam, the time required is 60min; from 120°C to 130°C, the time required is 30min; from 130°C to 161°C, the time required is 60min; holding time 30min; sprayed into the spraying pot after heat preservation; the steamed bamboo pulp is pumped to the washing tank for vacuum washing; The slag material contained in the bamboo pulp is washed out by th...

Embodiment 2

[0069] like figure 1 , figure 2 , as shown in table 1: choose cheap, widely sourced moso bamboo, green bamboo or clumping bamboo as basic raw material of bamboo pulp; enter the cooking pot and cook after the qualified bamboo chips of 6-45mm are screened by slicing; The ratio of weight ratio to water is 1:3.6 and the washing liquid after pulp washing is mixed and stirred with bamboo pulp, in which the moisture of bamboo chips accounts for 52%; steam is gradually added to the cooking pot to the set temperature, and the temperature change process and time Including: increasing the temperature from 70°C to 120°C by adding the amount of steam, the time required is 60min; from 120°C to 130°C, the time required is 30min; from 130°C to 161°C, the time required is 60min; holding time 30min; sprayed into the spraying pot after heat preservation; the steamed bamboo pulp is pumped to the washing tank for vacuum washing; The slag material contained in the bamboo pulp is washed out by th...

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Abstract

The invention provides a method for producing degradable mulching film paper by using bamboo pulp. The method comprises the following steps of pulping, concentrating, high-concentration pulping, seasonings feeding, forming on a net, squeezing, drying, coiling, rewinding and packaging; pulping is carried out by using 100% of bamboo fiber pulp at high concentration of 15-20%, pulping is carried outby using a medium-concentration disc mill, and the net concentration is set to be 0.18-0.45% and the net pH value is set to be 6.5-7.5. After forming on a net, squeezing is performed through a four-roller three-pressing area until the dryness is 45%-48%; the obtained mulching film paper has the advantages that the quantification is 40-80g / m<2>, the paper dryness is 8%-9%, the air permeability is 15-60mu m / Pa.s, the longitudinal tensile strength is 1.2-3.2 kN / m, the transverse tensile strength is 0.8-2 kN / m, the water absorption value is 35-50g / m<2>, and the paper tightness is 0.4-0.5 g / m<3>. According to the invention, bamboo fibers are used as a raw material, so that the raw material source of the mulching film paper is expanded, the situation of tension supply of wood pulp is relieved, and the performance of the mulching film paper is improved to a certain extent.

Description

technical field [0001] The invention relates to the technical field of pulping and papermaking, in particular to a patent disclosure document for producing degradable mulch paper with bamboo pulp and a process method. Background technique [0002] Plastic film mulching cultivation is an excellent agricultural production increase technology. Because plastic film can effectively control soil temperature and humidity, reduce water and nutrient loss, and prevent weed production, it can create a favorable local growth environment for crops. However, conventional plastic films generally use polymer materials, which are difficult to degrade by themselves in the soil. In response to this problem, researchers in the prior art have developed various types of degradable mulch films, one of which is paper mulch (also known as mulch paper or plant fiber mulch). The mulch paper is made of plant fibers, which can be decomposed by microorganisms in the soil, and the decomposition products ...

Claims

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Application Information

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IPC IPC(8): D21H27/00D21H11/12D21F11/00D21H21/18D21H21/20D21H21/10D21H21/16A01G13/02
CPCD21H27/00D21H11/12D21F11/00D21H21/18D21H21/20D21H21/10D21H21/16A01G13/0275
Inventor 刘洁王安睿张振镇林广生
Owner 江西中竹生物质科技有限公司
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