Method for producing 20 tons of molded pulp products per day

A technology of pulp molding and production methods, applied in the direction of non-woody plant/crop pulp, papermaking, textiles and papermaking, which can solve the problems of small scale and achieve the effect of improving smoothness, good durability and increasing whiteness

Inactive Publication Date: 2016-05-11
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of traditional pulp molding technology and mold technology, domestic pulp molding technology and processing e...

Method used

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  • Method for producing 20 tons of molded pulp products per day
  • Method for producing 20 tons of molded pulp products per day
  • Method for producing 20 tons of molded pulp products per day

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The production method of daily output 20 tons of pulp molded products, comprises the steps:

[0041] (1) Mold core preparation: Design and manufacture the corresponding mold core according to the product requirements and shape, and then install the mold core on the pulp molding automatic machine. The diameter of the dehydration holes is 1 mm, and the distance between the holes is 10 mm.

[0042] (2) Pulping: first put bamboo pulp board, clean white paper scraps, and bagasse pulp into the hydraulic pulper according to the mass ratio of 8:1:1, and add water repellent and 2% dry pulp quality 5% wet strength agent, then stir it and break it up.

[0043] (3) Deflashing: transport the crushed pulp to the deflaking unit through the pump for deflaking. The concentration of defoaming is 10%.

[0044] (4) Beating: pump the pulp made above into a beater for beating. The beating concentration is 5%, and the beating degree is 20°SR.

[0045] (5) Pulp blending: pump the prepared...

Embodiment 2

[0053] The production method of daily output 20 tons of pulp molded mobile phone box products is characterized in that comprising the steps:

[0054] (1) Mold core preparation: Design and manufacture the corresponding mold core according to the product requirements and shape, and then install the mold core on the pulp molding automatic machine. The diameter of the dehydration holes is 1.5mm, and the distance between the holes is 15mm.

[0055](2) Pulping: first put bamboo pulp board, clean white paper scraps, and bagasse pulp into the hydraulic pulper according to the mass ratio of 6:3:1, and add water repellent and 3% dry pulp quality 7% wet strength agent, then stir it up and disintegrate. The added amount is the mass ratio of the chemical reagent to the dry pulp.

[0056] (3) Deflashing: transport the crushed pulp to the deflaking unit through the pump for deflaking. The concentration of defoaming is 15%.

[0057] (4) Beating: pump the pulp made above into a beater for ...

Embodiment 3

[0066] The production method of 20 tons of pulp molded wine box products per day is characterized in that comprising the steps:

[0067] (1) Mold core preparation: Design and manufacture the corresponding mold core according to the product requirements and shape, and then install the mold core on the pulp molding automatic machine. The diameter of the dehydration holes is 2mm, and the distance between the holes is 20mm.

[0068] (2) Pulping: first put the bamboo pulp board, clean white paper scraps, and bagasse pulp into the hydraulic pulper according to the mass ratio of 7:2:1, and add 4% of the dry pulp quality waterproofing agent and 9% wet strength agent, then stir it up and disintegrate. The added amount is the mass ratio of the chemical reagent to the dry pulp.

[0069] (3) Deflashing: transport the crushed pulp to the deflaking unit through the pump for deflaking. The concentration of defoaming is 13%.

[0070] (4) Beating: pump the pulp made above into a beater for...

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Abstract

The invention belongs to the technical field of molded pulp packaging materials and particularly relates to a method for producing 20 tons of molded pulp products per day. The method adopts plant fiber materials as raw materials; with adoption of the method, wood pulp, bamboo pulp and bagasse pulp can be mixed and pulped on the premise of control of lower production cost, the beating degree is about 20-25 degrees SR, then a waterproof agent and a reinforcing agent are added to the mixed pulp, then an easy-to-degrade paper high-end packaging material is prepared from the mixed pulp through a molded pulp molding machine, and finished products of the molded pulp products are obtained finally through die cutting. The whiteness of the finished products is as high as 84%-86% ISO, and the surface roughness is 4-6 mu m. The prepared molded pulp products belong to green packaging, and wood pulp is not used in the raw materials, so that good environmental protection effect is realized; the produced materials are easy to degrade, are free of environmental pollution, have good durability and sufficiently meet the ideas of environmental protection and sustainable development.

Description

technical field [0001] The invention belongs to the technical field of pulp molded packaging materials, and in particular relates to a production method for a daily output of 20 tons of pulp molded products. Background technique [0002] Pulp molded products are usually formed by using waste paper or virgin pulp as raw materials, using special equipment and molds through a series of processes, so as to produce packaging products and objects that meet the needs of various shapes. Pulp products have the characteristics of wide source of raw materials, environmental protection, easy degradation, good mechanical properties, and easy molding, so they are considered to be the most ideal materials to replace foam plastic products. [0003] Pulp molded products have the following characteristics: [0004] 1. It can be made into products of various specifications and complex shapes through molds, so as to meet the packaging requirements of various packaged products. [0005] 2. The...

Claims

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Application Information

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IPC IPC(8): D21J5/00D21B1/34D21H11/12D21H11/14D21H21/16D21H21/20D21H17/67
CPCD21B1/345D21H11/12D21H11/14D21H17/675D21H21/16D21H21/20D21J5/00
Inventor 周晓明杨仁党张志礼陈克复
Owner SOUTH CHINA UNIV OF TECH
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