Method for manufacturing outer bag paper of fruit raising bags by using adherography

A fruit growing bag and offset printing technology, applied in the field of papermaking, can solve the problems of slow speed, large pollution, and large amount of carbon black used, and achieve the effects of fast speed, good strength and softness, and enhanced resistance to liquid penetration.

Inactive Publication Date: 2012-09-12
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of domestic production of fruit bag paper outer bag paper is lamination method. The inner black layer of the outer bag is produced by adding carbon black into the pulp. The carbon black usage is large and the pollution is relatively large. The lamination process is produced by a circular paper machine. slower speed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] 1) Preparation of water-repellent paraffin wax emulsion: Add 80 parts of paraffin wax and 15 parts of stearic acid into the reactor in parts by mass and heat at 60°C, then add 8 parts of borax and 1 part of soda ash, stir well, add 1200 dilute with water, and stir at 50°C for 1 hour to obtain a water-repellent paraffin emulsion;

[0014] 2) Base paper making: 50% of waste newspaper pulp with a beating degree of 40 to 50°SR and 50% of natural softwood pulp with a beating degree of 28 to 40°SR are mixed to obtain a mixture by mass percentage, and the mixture is added to To the tune-up pool and add relative to the quality of fiber dry pulp: 10% china clay, 1% rosin glue, 8% water-repelling agent paraffin wax emulsion, 3% wet strength agent PAE and 3% aluminum sulfate; Partial forming, pressing and dehydration, and drying to obtain outer bag paper base paper, the basis weight is 45g / m 2 ;

[0015] 3) The deployment of black ink: take 10% carbon black by mass percentage an...

Embodiment 2

[0018] 1) Preparation of water-resistant paraffin wax emulsion: Add 120 parts of paraffin and 30 parts of stearic acid into the reactor by mass parts and heat at 70°C, then add 9 parts of borax and 1.5 parts of soda ash, stir well, add 1800 Dilute with water, stir at 70°C for 2 hours to obtain water-resistant paraffin wax emulsion;

[0019] 2) base paper making: 70% of waste newspaper pulp with a beating degree of 40 to 50°SR and 30% of natural softwood pulp with a beating degree of 28 to 40°SR are mixed to obtain a mixture by mass percentage, and the mixture is added to To the tune into the pool and add relative to the quality of fiber dry pulp: 10% china clay, 1.5% rosin glue, 8% water-resistant agent paraffin wax emulsion, 3% wet strength agent PAE and 5% aluminum sulfate; Partial forming, pressing and dehydration, and drying to obtain outer bag paper base paper, the basis weight is 45g / m 2 ;

[0020] 3) The deployment of black ink: get 12% carbon black by mass percentage...

Embodiment 3

[0023] 1) Preparation of water-resistant paraffin wax emulsion: add 160 parts of paraffin and 40 parts of stearic acid into the reactor by mass parts and heat at 80°C, then add 10 parts of borax and 2 parts of soda ash, stir well, add 2300 dilute with water, and stir at 60°C for 1 hour to obtain a water-repellent paraffin emulsion;

[0024] 2) Base papermaking: 80% of waste newspaper pulp with a beating degree of 40 to 50°SR and 20% of natural softwood pulp with a beating degree of 28 to 40°SR are mixed to obtain a mixture by mass percentage, and the mixture is added to To the tune into the pool and add relative to the quality of fiber dry pulp: 10% of china clay, 2% of rosin glue, 8% of water-repelling agent paraffin wax emulsion, 3% of wet strength agent PAE and 4% of aluminum sulfate; Partial forming, pressing and dehydration, and drying to obtain outer bag paper base paper, the basis weight is 45g / m 2 ;

[0025] 3) The deployment of black ink: get 14% carbon black by mas...

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Abstract

A method for manufacturing outer bag paper of fruit raising bags by using adherography comprises repulping, slurry matching, net portion shaping, dehydrating by squeezing, stoving, rolling and separately cutting body paper products obtained by rewinding. Offset printing comprises mixing black printing ink and printing on a machine. The outer bag paper of the fruit raising bags produced by the method can be separated into body paper and an ink layer, shading performance is achieved by printing the black ink layer on the body paper, and the method has the advantages of being simple in body paper production process, capable of producing by using a long net paper machine, rapid in speed, low in cost, less in pollution and the like, and simultaneously solves the problem that carbon black in a lamination method and used in the liquid for dying causes pollution, use ratio is low, a circular net paper machine is slow in speed and the like. The black printing ink is used for printing, anti-liquid-permeation performance of the paper can be improved, simultaneously the paper has good opaqueness, is not prone to fade, keeps high compliance and air permeability.

Description

technical field [0001] The invention belongs to the field of papermaking, and in particular relates to a method for producing and processing fruit bag outer bag paper by offset printing Background technique [0002] Fruit bagging technology is an advanced fruit cultivation technology at home and abroad. The implementation of fruit bagging can effectively improve the coloring degree, cleanliness and integrity of the fruit, increase the intrinsic value of the fruit, and then drive economic benefits. Fruit bag paper is a kind of agricultural technical paper used in the process of fruit growth. It is required to have high opacity, air permeability, durability and dry and wet strength to ensure that the fruit is protected from the sun during the growth period. and pests and diseases, reduce pesticide residues, provide a dark and ventilated environment for fruit growth and development, inhibit the synthesis of chlorophyll on the fruit surface, reduce the background color of the fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/60D21H17/62D21H17/65D21H21/20
Inventor 张美云王兴
Owner SHAANXI UNIV OF SCI & TECH
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