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Adhesive for preventing cracking of corrugated cardboard

A corrugated cardboard and adhesive technology, applied in the direction of adhesives, adhesive additives, adhesive types, etc., can solve problems such as easy cracking, broken cartons, and affecting the service life of finished cartons, and achieve strong fluidity and wettability. The effect of enhancing flexibility

Active Publication Date: 2019-04-12
遵义市友联包装实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The original product of corrugated cardboard is a piece of flat cardboard with a certain thickness. When it is used for packaging cartons, the flat cardboard needs to be folded into the target carton. It is often easy to crack, resulting in certain cracks, which seriously affects the service life of the finished carton, reduces the firmness of the target carton, and may even cause the carton to be broken from the crack

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment provides an adhesive that prevents corrugated cardboard from cracking when it is folded and a preparation method thereof. The adhesive includes the following raw materials in parts by weight:

[0041] 25 parts of corn starch, 11 parts of waxy corn syrup, 5 parts of konjac powder, 3 parts of modified bentonite, 1 part of kaolinite, 5 parts of glycerin, 1 part of silicon dioxide, 2.5 parts of sodium hydroxide, 3.5 parts of borax, made of Polyester resin, polyamide resin, and rosin are mixed and processed in a ratio of 1:3:5 to produce 3.5 parts of resin and 30 parts of demineralized water.

[0042] In the present embodiment, the waxy corn syrup is prepared by mixing waxy corn and demineralized water with a hardness of 20 ppm in a ratio of 100:3;

[0043] Wherein, the waxy corn syrup needs to be filtered through a 270-mesh sieve before use.

[0044] In the present embodiment, the modified bentonite is prepared by the following method:

[0045] Take natura...

Embodiment 2

[0053]This embodiment provides an adhesive that prevents corrugated cardboard from cracking when it is folded and a preparation method thereof. The adhesive includes the following raw materials in parts by weight:

[0054] 26 parts of corn starch, 8 parts of waxy corn syrup, 9 parts of konjac powder, 1 part of modified bentonite, 2 parts of kaolinite, 3 parts of glycerin, 3 parts of silicon dioxide, 1 part of sodium hydroxide, 5 parts of borax, made of Polyester resin, polyamide resin, and rosin are mixed in a ratio of 1:3:5 to produce 3 parts of resin and 34 parts of demineralized water.

[0055] In this embodiment, the waxy corn syrup is prepared by mixing waxy corn with demineralized water with a hardness of 35ppm in a ratio of 100:7;

[0056] Wherein, the waxy corn syrup needs to be filtered through a 270-mesh sieve before use.

[0057] In the present embodiment, the modified bentonite is prepared by the following method:

[0058] Take natural bentonite, soak it complete...

Embodiment 3

[0066] This embodiment provides an adhesive that prevents corrugated cardboard from cracking when it is folded and a preparation method thereof. The adhesive includes the following raw materials in parts by weight:

[0067] 25 parts of corn starch, 11 parts of waxy corn syrup, 5 parts of konjac powder, 3 parts of modified bentonite, 1 part of kaolinite, 5 parts of glycerin, 1 part of silicon dioxide, 3 parts of sodium hydroxide, 3 parts of borax, made of Polyester resin, polyamide resin, and rosin are mixed and processed in a ratio of 1:3:5 to make 5 parts of resin and 28 parts of demineralized water.

[0068] In this embodiment, the waxy corn syrup is prepared by mixing waxy corn with demineralized water with a hardness of 30 ppm in a ratio of 100:5;

[0069] Wherein, the waxy corn syrup needs to be filtered through a 300-mesh sieve before use.

[0070] In the present embodiment, the modified bentonite is prepared by the following method:

[0071] Take natural bentonite, so...

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Abstract

The invention relates to the technical field of packaging material processing, in particular to an adhesive for preventing cracking of corrugated cardboards. The adhesive comprises the following raw materials in parts by weight: 20-30 parts of corn starch, 8-18 parts of waxy corn syrup, 5-12 parts of konjac flour, 1-4 parts of modified bentonite, 1-5 parts of kaolinite, 3-8 parts of glycerin, 1-6parts of silica, 1-5 parts of sodium hydroxide, 3-10 parts of borax, 2-9 parts of resin and 28-40 parts of softened water. The finished adhesive is mainly used to coat the creases of the corrugated cardboard when it is folded into cartons or other boxes, which can effectively prevent the cracking of the folded parts. The corrugated board can be coated with the adhesive at the place to be folded before folding, and the folded place can be softened to enhance the flexibility of the folded place, so that the corrugated board will not crack due to folding; the adhesive can also be applied to the folding place after folding, and the applied adhesive can quickly penetrate and soak around the folding place, soften the folding place, so that the corrugated board will not crack due to folding.

Description

technical field [0001] The invention relates to the technical field of packaging material processing, in particular to an adhesive for preventing cracking of corrugated cardboard. Background technique [0002] Corrugated board (corrugated board), also known as corrugated board. It is made of at least one layer of corrugated paper and a layer of cardboard (also called cardboard), which has good elasticity and extensibility. It is mainly used in the manufacture of cartons, the sandwich of cartons and other packaging materials for fragile goods. [0003] The original product of corrugated cardboard is a piece of flat cardboard with a certain thickness. When it is used for packaging cartons, the flat cardboard needs to be folded into the target carton. It is often easy to crack and produce certain cracks, which seriously affects the service life of the finished carton, reduces the firmness of the target carton, and may even cause the carton to be broken from the crack. Conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/02C09J105/02C09J167/00C09J177/00C09J193/04C09J11/06C09J11/04
CPCC08K2003/387C08L2205/025C08L2205/035C09J11/04C09J11/06C09J103/02C08L3/02C08L5/02C08L67/00C08L77/00C08L93/04C08K13/06C08K9/04C08K3/346C08K5/053C08K3/36C08K3/38
Inventor 吴春渝顾建民赵建青
Owner 遵义市友联包装实业有限公司
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