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Preparation method of water-resistant fruit-cultivating bag paper material

A technology of fruit bag paper and water resistance, which is applied in the field of materials, can solve the problems of poor quality and water resistance of fruit bag paper, and achieve the effects of improving wet strength, increasing wet strength, and improving tensile strength

Inactive Publication Date: 2019-06-11
常州苏达欧包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Technical problem to be solved by the present invention: Aiming at the problems of poor quality of domestic fruit bag paper, many problems in use, and poor water resistance, a method for preparing water-resistant fruit bag paper material is provided

Method used

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  • Preparation method of water-resistant fruit-cultivating bag paper material

Examples

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example 1

[0035] Add natural coniferous wood pulp to waste newspaper pulp, stir at 300r / min for 20min at normal temperature to obtain a mixed slurry; add anhydrous aluminum sulfate to deionized water, stir at 200r / min for 5min at normal temperature to obtain sulfuric acid Aluminum solution, calcium carbonate powder, cationic disperse rosin gum, paraffin wax emulsion, melamine formaldehyde resin and aluminum sulfate solution are added to the mixed slurry, and stirred at a speed of 500r / min for 1h at room temperature to obtain the prepared slurry; The slurry is placed on the paper forming net to form a wet paper sheet, and the wet paper sheet is dehydrated and peeled off, and placed on a press for dehydration under a pressure of 4 MPa for 3 minutes to obtain a dehydrated paper sheet; the dehydrated paper sheet is placed in vacuum drying Dry it in the machine for 4 minutes under the conditions of vacuum degree 92kPa and temperature 60°C, take it out, and obtain water-resistant fruit bag pap...

example 2

[0037] Add natural coniferous wood pulp to waste newspaper pulp, and stir at 350r / min for 25 minutes at room temperature to obtain a mixed slurry; add anhydrous aluminum sulfate to deionized water, and stir at 250r / min for 7 minutes at room temperature to obtain sulfuric acid Aluminum solution, calcium carbonate powder, cationic disperse rosin gum, paraffin wax emulsion, melamine formaldehyde resin and aluminum sulfate solution are added to the mixed slurry, stirred at 550r / min for 1.3h at room temperature, and the prepared slurry is obtained; Put the slurry on the paper forming net to copy into wet paper sheets, remove the wet paper sheets after dehydration, and put them on a press for dehydration for 4 minutes under a pressure of 4.5 MPa to obtain dehydrated paper sheets; place the dehydrated paper sheets in Dry in a vacuum dryer for 5 minutes under the conditions of a vacuum degree of 94kPa and a temperature of 70°C, and take it out to obtain a water-resistant fruit bag pape...

example 3

[0039] Add natural coniferous wood pulp to waste newspaper pulp, stir at 400r / min for 30min at normal temperature to obtain a mixed slurry; add anhydrous aluminum sulfate to deionized water, stir at 300r / min for 10min at normal temperature to obtain sulfuric acid Aluminum solution, calcium carbonate powder, cationic disperse rosin gum, paraffin wax emulsion, melamine formaldehyde resin and aluminum sulfate solution are added to the mixed slurry, stirred at 600r / min for 1.5h at room temperature, and the prepared slurry is obtained; Put the slurry on the paper forming net to copy into wet paper sheets, dehydrate the wet paper sheets, remove them, and place them on a press for dehydration for 5 minutes under a pressure of 5 MPa to obtain dehydrated paper sheets; place the dehydrated paper sheets in a vacuum Dried in a dryer for 6 minutes under the conditions of a vacuum degree of 96kPa and a temperature of 80°C, and took it out to obtain a water-resistant fruit bag paper material....

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Abstract

The invention relates to a preparation method of a water-resistant fruit-cultivating bag paper material, and belongs to the technical field of materials. According to the method provided by the invention, cationic dispersion rosin size and a paraffin emulsion are added to prepare the water-resistant fruit-cultivating bag paper material, the cationic dispersion rosin size is an inexpensive and extremely abundant resource, molecules of the cationic dispersion rosin size contain alkyl with a long carbon chain and good water resistance, so that the cationic dispersion rosin size can give water andoil resistance to the paper, improve phenomena of yellowing and brittleness of the paper, improve the durability, strength and whiteness of the paper, and reduce a sizing obstacle in summer, therebyimproving each performance indicator and quality of the paper; free rosin particles can react with aluminum ions on fibers, so that hydrophilic and hydrophobic groups of the rosin particles are turnedand positioned, the rosin particles and the fibers are firmly combined, the fibers are not decomposed for a long time, the storage time is long, and therefore the durability and stability of the fruit-cultivating bag paper material are improved.

Description

technical field [0001] The invention relates to a preparation method of a water-resistant fruit-growing bag paper material, which belongs to the field of material technology. Background technique [0002] Fruit bag paper is a special paper that provides protection during the whole process of fruit development. It is an agricultural technical paper with high added value. It must have high water resistance and durability, and also have good air permeability. Moreover, fruit farmers have strict requirements on the price of fruit bag paper, so they should reduce production costs as much as possible. [0003] The fruit bagging technology was first produced in Japan. Simply put, it is a technology for bagging protection during the whole process of fruit growth and development. It has a history of more than 100 years. In the early 20th century, in order to prevent pest damage, Japanese fruit farmers mainly carried out fruit bagging on grapes and pears, and it was not extended to a...

Claims

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Application Information

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IPC IPC(8): D21H27/10D21F3/02D21F5/14D21H11/14D21H17/04D21H17/31D21H17/51D21H17/66D21H17/67
Inventor 张桂芳
Owner 常州苏达欧包装材料有限公司
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