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Preparation method of adhesive for FSC (forest stewardship council) corrugated board

A technology of corrugated cardboard and adhesives, applied in the direction of adhesive types, starch adhesives, polymer adhesive additives, etc., which can solve the problems of unsatisfactory printing effect, decreased proportion of raw paper wood pulp, and adhesive strength To achieve the effect of solving poor bonding, improving penetration and reducing energy loss

Inactive Publication Date: 2014-10-15
合肥丹盛包装有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical characteristics of FSC base paper are: the main component is recycled fiber, and special additives need to be added to ensure its physical properties, resulting in poor lamination in cardboard production and unsatisfactory printing effects
[0004] When using various types of base paper specified by FSC certification, the wood pulp ratio of base paper drops significantly, or even 0 ratio, in order to achieve various physical and mechanical properties of base paper Index, the paper mill adopts the process of auxiliary additive enhancement to meet the physical index of base paper stipulated in the national standard, but this brings difficulties in cardboard bonding to carton processing and production, and the bonding strength cannot reach the 588N stipulated in the national standard GB / T6544-1999 / m

Method used

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  • Preparation method of adhesive for FSC (forest stewardship council) corrugated board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for preparing an adhesive for corrugated cardboard that meets FSC certification standards, comprising the following steps:

[0016] (1) Preparation of carrier paste: Put 330kg of water into the carrier tank at one time, heat it to 38°C, then put in 40kg of starch at one time, stir while adding, and then gradually add 25kg of liquid alkali, add while adding Stirring, followed by 12000 rpm high-speed shearing treatment to obtain carrier paste;

[0017] (2) Preparation of the main glue: Put 600kg of water in the main tank at one time, heat it to 38°C, put the carrier paste into the main tank, then gradually put in 290kg of starch, stir while adding, and then gradually put in 14kg of glue Combine the strengthening agent, stir while adding, after adding the adhesion enhancing agent, throw in 3.5kg of borax at one time, stir for 12 minutes, and obtain the main glue;

[0018] (3) After the mixture in the main tank is fully stirred evenly, the temperature of the collo...

Embodiment 2-4

[0028] Except following parameter, other method and parameter are with embodiment 1

[0029]

[0030] Example of effect

[0031] The adhesives prepared in the above examples and comparative examples were applied to the sizing of FSC corrugated cardboard, and the prepared corrugated paper had the same composition except for different adhesives.

[0032] The national standard GB / T6548-2011 method for the determination of the adhesive strength of corrugated cardboard was used to measure the adhesive strength of corrugated cardboard. The specific results are as follows:

[0033]

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Abstract

The invention relates to the technical field of the preparation method of an adhesive, in particular to a preparation method of an adhesive for an FSC (forest stewardship council) corrugated board. The preparation method mainly comprises steps of preparation of a carrier (mother paste), preparation of a main adhesive body, uniform mixing and the like. According to the preparation method, the conventional adhesive formula is improved, the board adhesive strength defined by the national standard is met, and the preparation method can be widely applied to the production field of top-grade corrugated boards; meanwhile, with adoption of the method, a low-temperature drying technology can be achieved, the saturated vapor pressure required by equipment is reduced to 7 kg / cm<2> from 13 kg / cm<2>, good adhesion required by the national standard between the adhesive and the corrugated board can be guaranteed when the corrugated board production equipment works at a temperature lower than the conventional standard drying temperature by 20%, problems of poor adhesion of the corrugated boards, substandard adhesive strength and warped or deformed corner parts of the corrugated boards in the industry are solved, meanwhile, the utilization rate of thermal energy is increased greatly, and energy loss is reduced.

Description

technical field [0001] The invention relates to the technical field of adhesive preparation methods, in particular to an adhesive preparation method for FSC corrugated cardboard. Background technique [0002] At present, the base paper commonly used in outer packaging cartons is kraft linerboard, kraft linerboard, coated white kraft cardboard or white kraft cardboard with vermicelli. These materials constitute about 70% of the cost of carton products. However, the raw materials of this kind of base paper are wood pulp or recycled paper and various additives, which have not been certified by international authoritative environmental protection agencies, have not been certified by internationally renowned enterprises in China, and are not in line with the national sustainable development policy. [0003] Since 2012, domestic large-scale paper-making enterprises and responsible carton manufacturers have begun to carry out FSC certification and production control. The technic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/02C09J11/04C09J11/08C09J11/06
Inventor 孙建怡
Owner 合肥丹盛包装有限公司
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