Method for papermaking utilizing waste paper containing wax
A technology of waste paper making paper and waste paper, which is applied in the technical field of making paper from waxy waste paper, which can solve environmental pollution and other problems, and achieve the effect of reducing environmental pollution and papermaking cost
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Embodiment 1
[0015] Embodiment 1 produces high-strength moisture-proof bobbin paper
[0016] The process is as follows:
[0017] (1) Ingredients: mix waste paper with heavy wax content and waste paper with light wax content as raw materials, so that the average wax content of the total raw materials is 3-8% by weight;
[0018] (2) Crushing: crush the matched raw materials into small pieces of paper with a diameter of less than 5 cm, so as to facilitate beating;
[0019] (3) Beating: Add the paper pieces into the beater with hot water added in advance, beat with the beater, while beating and heating to 65°C above the melting point of the paraffin to melt the paraffin, through the high-speed operation and stirring of the beater, make The paper fiber fully absorbs the melted polymer paraffin in the paper fiber, and beats the small paper strips into a rough pulp with a degree of disintegration of 16-26 degrees, and the pulp concentration is 4%-7% (wt%);
[0020] (4) Squeezing: Use a high-con...
Embodiment 2
[0027] Example 2 Production of high-strength moisture-proof corrugated paper
[0028] The process is as follows:
[0029] (1) Ingredients: mix waste paper with light wax content and waste paper with heavy wax content as raw materials, so that the average wax content of the total raw materials is 3-12% by weight;
[0030] Other steps (2) to (8) are the same as in Example 1. Then use the paper machine to produce high-strength moisture-proof corrugated paper and cardboard paper according to the conventional papermaking process.
[0031] The high-strength moisture-proof corrugated paper produced has good moisture-proof effect and is widely used in electrical appliances, electronics, fruit and vegetable preservation and various product packaging. The production cost is 400-600 yuan / ton lower than that of high-strength corrugated paper of the same quality.
Embodiment 3
[0032] Embodiment 3 produces moisture-proof kraft paper
[0033] The process is as follows:
[0034] (1) Matching waste paper with light wax content and waste paper with heavy wax content as raw materials, so that the average wax content of the total raw materials is 7-30% by weight;
[0035] Other steps (2) to (8) are the same as in Example 1. Then use the paper machine to produce high-strength moisture-proof kraft paper according to the conventional papermaking process.
[0036] The cost of kraft paper produced by this method is 800-1000 yuan / ton lower than traditional recycled kraft paper, 1500-1800 yuan / ton lower than waxed recycled kraft paper, and 1400-1600 yuan / ton lower than laminated recycled kraft paper.
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