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Special paper with stable size and excellent restorability and preparation method thereof

A dimensionally stable and restorative technology, applied in the field of papermaking, can solve the problems that the deformed shape such as foaming and wrinkles cannot be improved, cannot be restored to a flat shape, the smoothness of the wallpaper surface, and the appearance is deteriorated, so as to improve the stability of cross-linking. The effect of improving recovery and relieving swelling and deformation

Inactive Publication Date: 2020-10-30
泰中特种纸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the dimensional stability of the paper has been improved, the expansion and deformation of the paper usually produces blisters and wrinkles in local areas. When the paper is dried again and dehydrated, the paper still maintains the shape of the bubbles and wrinkles caused by the expansion deformation. , cannot be restored to the original flat shape, or deformed shapes such as blisters and wrinkles cannot be improved, making the flatness and aesthetics of the wallpaper surface worse

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The paper includes wood pulp fiber 60, mineral filler 3, wetting agent 3 and defoamer 2 in parts by mass, and is characterized in that it also includes aminosilane 5 and sugar alcohol 5.

[0016] The general formula of sugar alcohol is HOCH 2 [CH(OH)] 3 CH 2 Oh

[0017] Wood pulp fibers include coniferous pulp and hardwood pulp, and the mass ratio of coniferous pulp to hardwood pulp is 50:50.

[0018] The aminosilane is γ-aminopropyltrimethoxysilane.

[0019] The preparation method is as follows: take wood pulp fiber, mineral filler, wetting agent, defoamer, aminosilane, and sugar alcohol according to the above formula and add them to a pulper for pulping, and then refine the pulp. After papermaking, surfing, pressing, drying, Calendering, rolling, cutting and packaging are all you need.

Embodiment 2

[0021] The paper includes wood pulp fiber 70, mineral filler 4, wetting agent 4 and defoamer 4 in parts by mass, and is characterized in that it also includes aminosilane 8 and sugar alcohol 8.

[0022] The general formula of sugar alcohol is HOCH 2 [CH(OH)] 4 CH 2 Oh

[0023] Wood pulp fibers include coniferous pulp and hardwood pulp, and the mass ratio of coniferous pulp to hardwood pulp is 40:60.

[0024] The aminosilane is γ-aminopropyltriethoxysilane.

[0025] The preparation method is as follows: take wood pulp fiber, mineral filler, wetting agent, defoamer, aminosilane, and sugar alcohol according to the above formula and add them to a pulper for pulping, and then refine the pulp. After papermaking, surfing, pressing, drying, Calendering, rolling, cutting and packaging are all you need.

Embodiment 3

[0027] The paper includes wood pulp fiber 80, mineral filler 5, wetting agent 5 and defoamer 5 in parts by mass, and is characterized in that it also includes aminosilane 10 and sugar alcohol 10.

[0028] The general formula of sugar alcohol is HOCH 2 [CH(OH)] 5 CH 2 Oh

[0029] Wood pulp fibers include coniferous pulp and hardwood pulp, and the mass ratio of coniferous pulp to hardwood pulp is 60:40.

[0030] The aminosilane is N-β(aminoethyl)-γ-aminopropyltrimethoxysilane.

[0031] The preparation method is as follows: take wood pulp fiber, mineral filler, wetting agent, defoamer, aminosilane, and sugar alcohol according to the above formula and add them to a pulper for pulping, and then refine the pulp. After papermaking, surfing, pressing, drying, Calendering, rolling, cutting and packaging are all you need.

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Abstract

The invention relates to a paper with a stable size and excellent restorability and a preparation method thereof. The paper is prepared from 60-80 parts of wood pulp fibers, 3-5 parts of a mineral filler, 3-5 parts of a wetting agent and 2-5 parts of a defoaming agent and is characterized by further comprising 5-10 parts of aminosilane and 5-10 parts of sugar alcohol. By adding aminosilane and sugar alcohol into paper pulp, a certain micro-elasticity can be given to the paper in the X direction and the Y direction of the plane where the paper is located, the micro-elasticity can effectively relieve expansion deformation of the paper in a water or damp environment, meanwhile, the phenomena that after the paper is dried again and dehydrated, the paper bubbles and wrinkles are generated due to expansion deformation can be relieved, and the restorability of the paper is improved.

Description

technical field [0001] The invention relates to special paper with stable size and excellent restorability and a preparation method thereof, which belongs to the field of papermaking and can be applied to wallpaper. Background technique [0002] Ordinary paper will swell and deform when it encounters water due to the swelling of cellulose, and it will also swell and deform due to the gradual absorption of water by cellulose in a humid environment. For paper applied to wallpaper, it is usually required to have good dimensional stability, even if it encounters water or humid air, it will not cause too much expansion and deformation. [0003] The method usually adopted in the prior art is to set a waterproof layer on the wallpaper, such as a PVC waterproof layer, to isolate the paper from contact with water or humid air. This method will increase redundant processes, which is complicated and cumbersome, and the cost is high. [0004] In the prior art, surface modification is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/13D21H17/06D21H27/20D21F11/00D21B1/34D21D1/20D21H21/12D21H21/14
CPCD21B1/345D21D1/20D21F11/00D21H17/06D21H17/13D21H21/12D21H21/14D21H27/20
Inventor 延海平韩旭霞
Owner 泰中特种纸有限公司