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A new type of interlayer adhesive and preparation method and its application in interlayer spraying in papermaking

A technology of interlayer bonding and interlayer spraying, applied in textiles and papermaking, papermaking, papermaking and other directions, can solve problems such as quality improvement restrictions, increase burst strength, reduce environmental pollution, and realize resource recycling and reuse Effect

Active Publication Date: 2021-06-15
JINING MING SHENG NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cardboard paper, recycled kraft cardboard, bobbin paper and other paper types are generally produced by recycling ordinary waste paper or adding a small amount of other pulp, so the improvement of its quality is subject to certain restrictions

Method used

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  • A new type of interlayer adhesive and preparation method and its application in interlayer spraying in papermaking
  • A new type of interlayer adhesive and preparation method and its application in interlayer spraying in papermaking
  • A new type of interlayer adhesive and preparation method and its application in interlayer spraying in papermaking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Preparation of new interlayer adhesive:

[0032] (1) 60 parts of papermaking waste containing phenolic substrates, 20 parts of formaldehyde and 10 parts of sodium hydroxide mixed solution were reacted at 70° C. for 300 minutes;

[0033] (2) Then add 10 parts of cationic etherification agent 2,3-epoxypropyl tertiary amine compound, 3-chloro-2-hydroxypropyl tertiary amine compound in (1) reaction product, react for 300 minutes at 70 ℃, After cooling and filtering, a new type of interlayer bonding glue was prepared. The prepared novel interlayer bonding glue has a solid content of 12%, a viscosity of 250 cps, and a pH of 4.05.

[0034] (2) The novel interlayer bonding glue prepared in this example is applied on a machine in a bobbin paper factory in Shandong

[0035] (1) Experimental production conditions:

[0036] Paper machine type: stacked net paper machine;

[0037] Production speed: about 270m / min;

[0038] Papermaking width: 2650mm;

[0039] Production pape...

Embodiment 2

[0050] (1) Preparation of new interlayer adhesive:

[0051] (1) 80 parts of papermaking waste containing phenolic substrates, 5 parts of paraformaldehyde and 5 parts of potassium hydroxide mixed solution were reacted at 80° C. for 200 minutes;

[0052] (2) Then add 10 parts of cationic etherification agent β-haloalkyl tertiary amine compound and 2,3-epoxypropyl tertiary amine compound to the reaction product of (1), react at 80°C for 200 minutes, after cooling and filtering A new type of interlayer adhesive was prepared. The solid content of the novel interlayer bonding glue prepared in this example is 15%, the viscosity is 348 cps, and the pH is 4.18.

[0053] (2) The new type of interlayer bonding glue prepared in this example is applied on a machine in a bobbin paper factory in Zhejiang

[0054] (1) Experimental production conditions:

[0055] Paper machine type: 3200mm multi-cylinder paper machine;

[0056] Paper machine speed: 117m / min;

[0057] Production paper type...

Embodiment 3

[0069] (1) Preparation of new interlayer adhesive

[0070] (1) 100 parts of papermaking waste containing phenolic substrates, 5 parts of paraformaldehyde and sodium hydroxide, and 15 parts of ammonia water mixed solution were reacted at 85°C for 60 minutes;

[0071] (2) Then add 20 parts of cationic etherification agent 2,3-epoxypropyl quaternary ammonium compound, 3-chloro-2-hydroxypropyl quaternary ammonium in (1) reaction product again, 90 ℃ of reaction 120 minutes, through After cooling and filtering, a new type of interlayer bonding glue was prepared. The new interlayer bonding glue prepared in this example has a solid content of 18%, a viscosity of 483 cps, and a pH of 5.63.

[0072] (2) The new type of interlayer bonding glue prepared in this example is applied on the recycled kraft cardboard of a factory in Shandong

[0073] (1) Experimental production conditions:

[0074] Paper machine type: 6600mm stacked net paper machine;

[0075] Paper machine speed: 970m / min;...

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Abstract

The invention discloses a novel interlayer binding glue, a preparation method and its application in spraying between layers of papermaking. The preparation method of the novel interlayer adhesive comprises the steps of: (1) reacting a mixed aqueous solution containing phenolic papermaking waste, formaldehyde monomers and strong alkaline substances at 65° C. to 85° C. for 60 to 300 minutes; ( 2) Then add a cationic etherification agent to the reaction product of step (1), react at 70-90°C for 120-300 minutes, cool and filter to prepare a new type of interlayer adhesive. The novel interlayer bonding glue prepared by the method of the present invention is applied to the production process of bobbin paper, cardboard paper, recycled kraft card and other paper types, which can partially or completely replace the interlayer spray starch, and can effectively improve the production process. Bonding strength between paper layers, ring compressive strength, folding strength, bursting strength and other strength indicators, and its raw materials are widely available, and the price is affordable; it can effectively reduce papermaking waste emissions, reduce pollution, and be beneficial to environmental protection; therefore, the development prospect is very promising.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a novel interlayer bonding glue and a preparation method thereof and its application in interlayer spraying of container board paper, recycled kraft card and bobbin paper. Background technique [0002] With the continuous improvement of people's living standards, online shopping has become the main way of people's daily shopping; the logistics and packaging industries have also developed rapidly; the market demand for cardboard paper, recycled kraft cards, bobbin paper and other paper is very large; and there is a great demand for packaging Paper quality requirements are getting higher and higher. Cardboard, recycled kraft cardboard, bobbin paper and other paper types are generally produced by recycling ordinary waste paper or adding a small amount of other pulp, so the improvement of its quality is limited to a certain extent. Generally speaking, when the equipment meets th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/04C08G8/36C09J161/14
CPCC08G8/36C09J161/14D21F11/04
Inventor 施晓旦刘体霞杨迪廖秀驰
Owner JINING MING SHENG NEW MATERIALS CO LTD
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