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Glass paper production process

A production process, cellophane technology, applied in the direction of plant parchment/imitation parchment, etc., can solve the problems of non-wasteable paper resource utilization, difficult removal of ink, consumption of wood fiber, etc., to achieve economical and practical physical treatment, save process costs, prevent The effect of overheating

Active Publication Date: 2014-01-29
TONGCHENG FURUN PACKAGING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Cellophane is mainly used for packaging goods. The original plastic film was found to be cellophane, which is obtained after extracting cellulose from wood. Cellophane is rich in color and light in weight. Now cellophane has been widely used in furniture decoration, food, shirts, and cigarettes. , Cosmetics and other supplies, but cellophane needs to consume a lot of wood fiber, which requires high purity of wood fiber. At present, many waste papers cannot meet the requirements, and a large amount of ink is difficult to remove, so that the cost of cellophane is very high, and it cannot be widely produced.
The application number is CN200910164306.X, which discloses a production process of cellophane. It uses waste cellophane as the main raw material, dries it and LiCl separately, and then immerses the waste cellophane in a solution composed of potassium permanganate and solvent DMAc for heating activation. Make it dissolve, and finally produce cellophane according to the conventional method, not only the discarded cellophane can be reused, the resources can be fully utilized, and the obtained cellophane mixed solution has better stability, but the raw materials selected by this process are relatively limited, and the waste cannot be reused. Paper resources are fully utilized, and the chemicals used in this process are relatively expensive, which makes the process cost high and difficult to promote, and needs to be further strengthened and improved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of cellophane production technique of the present embodiment is characterized in that, its processing step is as follows:

[0022] (1) Extraction: Put the waste paper into the extractor, heat it in a constant temperature water bath, the temperature of the water bath is 50 ℃, and add a solvent for extraction, the solvent is dichloromethane;

[0023] (2) Pulping: After the residual solvent in the extracted sample evaporates, adjust the pulp concentration to 8%, and decompose the waste paper under the action of the mixer, and the decompression time is 45 minutes;

[0024] (3) Ultrasonic treatment: place the pulp obtained in step (2) in an ultrasonic cleaning tank, adjust the ultrasonic treatment time to 10 minutes, ultrasonic treatment power to 300w, and temperature to 40°C for treatment;

[0025] (4) Flotation: After ultrasonic treatment, the slurry sample is placed in the flotation tank, and at the same time, add flotation agent, adjust the slurry concentration...

Embodiment 2

[0030] Example 2: the rest are the same as in Example 1, except that in step (1), the temperature of the water bath is 60°C, and in step (4), the flotation agent is a mixed solution of acetone and methanol, and the step In (4), the ratio of the mixed solution of acetone and methanol is 1:1.5.

[0031] Example 1 Example 2 Example 3 fiber content 65% 70% 67% ink removal rate 93% 98% 94.5%

[0032]

[0033] Through the above three examples, the three sets of data in the above table show that when the temperature of the water bath is controlled at 60°C, the fiber retention content is relatively high, and when the ratio of the mixed solution of acetone and methanol is 1:1.5, the ink removal rate is the highest. The cellophane produced at this time is of higher quality.

[0034] The present invention completes the production of cellophane through eight major steps of waste paper extraction, pulping, ultrasonic treatment, flotation, washing, vis...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention discloses a glass paper production process which comprises the following steps of (1), extracting; (2), repulping; (3), carrying out ultrasonic treatment; (4), floating; (5), washing; (6), preparing an adhesive; (7), carrying out a film production procedure; and (8), carrying out a forming procedure. The glass paper production process is reasonable in process, and environment-friendly and practical in raw materials; resources are fully utilized, the process cost is lower; the pollutant emission is less, and most importantly, the paper quality is improved; the paper package is more environment-friendly and economic. The glass paper production process is suitable for being popularized and used in the paper package industry.

Description

[0001] technical field [0002] The invention relates to a packaging production process, in particular to a cellophane production process. Background technique [0003] Cellophane is mainly used for packaging goods. The original plastic film was found to be cellophane, which is obtained after extracting cellulose from wood. Cellophane is rich in color and light in weight. Now cellophane has been widely used in furniture decoration, food, shirts, and cigarettes. , Cosmetics and other supplies, but cellophane needs to consume a lot of wood fiber, which requires high purity of wood fiber. At present, many waste papers cannot meet the requirements, and a large amount of ink is difficult to remove, so that the cost of cellophane is very high, and it cannot be widely produced. . The application number is CN200910164306.X, which discloses a production process of cellophane. It uses waste cellophane as the main raw material, dries it and LiCl separately, and then immerses the waste...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D21H27/06
Inventor 杨峰
Owner TONGCHENG FURUN PACKAGING MATERIAL
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