Preparation method of adhesive of corrugated paper

A corrugated paper glue and adhesive technology, applied in the directions of adhesive additives, adhesive types, starch adhesives, etc., can solve the problems of complex adhesive formulations, short storage time, poor initial viscosity of adhesives, etc. Achieve the effect of good initial viscosity and stability, long-term maintenance of adhesiveness and good adhesive strength

Inactive Publication Date: 2019-03-15
安溪县斯马拓科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This preparation method has the following defects: (1) the preparation method is relatively complicated, the process is cumbersome, the equipment requirements are high, the operation is difficult, and the energy consumption is high; (2) the adhesive formula is relatively complicated and the cost is high; (3) the obtained adhesive The adhesive is a conventional alkaline solid starch adhesive, which needs to be gelatinized with alkali (calcium hydroxide), and the obtained adhesive has poor initial adhesion; (4) The adhesive is prone to sedimentation and the storage time is short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Preparation of phosphate cornstarch: first dry the cornstarch at a constant temperature at 50°C until the water content is ≤2%, then mix 40g of cornstarch with 50g of water, add 4g of sodium hydrogen phosphate, mix thoroughly and then add phosphoric acid to adjust the pH to 5.5, soak for 2 hours, control the soaking temperature below 75°C, filter, dry the filtrate at 20°C until the water content is ≤10%, then raise the temperature to 40°C and dry for 5 hours, after cooling, pulverize and pass through a 160-mesh sieve to obtain a slightly yellow color The powder is cornstarch phosphate;

[0022] (2) Weighing: take each component by weight ratio as follows: 10kg phosphate cornstarch, 70kg expanded cornstarch, 5kg light calcium carbonate, 3kg polyvinyl alcohol, 3kg borax, 3kg alum, 3kg calcium chloride, 8kg sodium bentonite, 0.03kg preservative potassium sorbate, 100kg water;

[0023] (3) Mixing: first add phosphate ester cornstarch and expanded cornstarch to the wate...

Embodiment 2

[0025] (1) Preparation of phosphate cornstarch: first dry the cornstarch at 60°C to a water content of ≤2%, then mix 50g of cornstarch with 60g of water, add 6g of sodium hydrogen phosphate, mix thoroughly and then add phosphoric acid to adjust the pH to 6.0, soak for 3 hours, control the soaking temperature below 75°C, filter, dry the filtrate at 30°C until the water content is ≤10%, then raise the temperature to 50°C and dry for 6 hours, after cooling, crush and pass through a 200-mesh sieve to obtain a slightly yellow color The powder is cornstarch phosphate;

[0026] (2) Weighing: each component is weighed according to the following weight ratio: 15kg phosphate cornstarch, 75kg expanded cornstarch, 7kg light calcium carbonate, 5kg polyvinyl alcohol, 5kg borax, 5kg alum, 5kg calcium chloride, 10kg sodium bentonite, 0.05kg preservative potassium sorbate or paraben, 120kg water;

[0027] (3) Mixing: first add phosphate ester cornstarch and expanded cornstarch to the water un...

Embodiment 3

[0029] (1) Preparation of phosphate cornstarch: first dry the cornstarch at 55°C at a constant temperature until the water content is ≤2%, then mix 45g of cornstarch with 55g of water, add 5g of sodium hydrogen phosphate, mix thoroughly and then add phosphoric acid to adjust the pH to 5.8, soak for 2.5 hours, control the soaking temperature below 75°C, filter, dry the filtrate at 25°C until the water content is ≤10%, then raise the temperature to 45°C and dry for 5.2h, after cooling, crush and pass through a 180 mesh sieve to obtain The light yellow powder is cornstarch phosphate;

[0030] (2) Weighing: Weigh each component according to the following weight ratio: 12kg phosphate cornstarch, 72kg expanded cornstarch, 6kg light calcium carbonate, 4kg polyvinyl alcohol, 4kg borax, 3.5kg alum, 3.2kg chlorinated Calcium, 8.5kg sodium bentonite, 0.04kg preservative potassium sorbate or paraben, 110kg water;

[0031](3) Mixing: First add phosphate ester cornstarch and expanded corns...

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Abstract

The invention discloses a preparation method of an adhesive of corrugated paper. The preparation method of the adhesive of the corrugated paper comprises the following steps: (1) preparing phosphate corn starch; (2) weighing: weighing the following materials in parts by weight: 10-15 parts of the phosphate corn starch, 70-75 parts of extruded corn starch, 5-7 parts of light calcium carbonate, 3-5parts of polyvinyl alcohol, 3-5 parts of borax, 3-5 parts of alum, 3-5 parts of calcium chloride, 8-10 parts of sodium bentonite, a proper amount of a preservative and 100-120 parts of water; and (3)mixing: adding the phosphate corn starch and the extruded corn starch in the water while stirring, stirring and pasting for 20-30 min, then adding the light calcium carbonate, the calcium chloride andthe sodium bentonite, stirring uniformly, then adding the borax and the alum and stirring uniformly, adding the polyvinyl alcohol and stirring uniformly, finally adding the preservative and stirringuniformly, and defoaming under vacuum to obtain the final product. The process steps are simple, the operability is high, the investment of equipment is low, the production cost is low, and the adhesive of the corrugated paper is suitable for industrialized production.

Description

technical field [0001] The invention relates to an adhesive, in particular to a method for preparing a corrugated paper adhesive. Background technique [0002] In the field of packaging, corrugated boxes have always played an important role in the circulation of commodities due to their wide source of raw materials, good protection performance for products, and green and non-polluting advantages. In the production process of corrugated paper boxes, it is necessary to bond the corrugated paper with adhesives, but the current corrugated paper adhesives have poor adhesion and stability, slow drying speed and other temperatures, which affect the production efficiency of corrugated paper boxes. [0003] For example, the Chinese patent with the publication number CN107502226A discloses a method for preparing a low-temperature quick-drying starch adhesive for a corrugated board production line. (2) at room temperature, cornstarch, kaolin, soybean protein powder, seaweed powder and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/02C09J103/06C09J129/04C09J11/04C09J11/06C08B31/06
CPCC09J11/04C09J11/06C09J103/02C08B31/066C08K2003/387C08K2003/265C08K2003/162
Inventor 陈小燕
Owner 安溪县斯马拓科技发展有限公司
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