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

• Main Authors: YAN HAIPING, HAN XUXIA
• Format: Patent
• Language: Chinese; English
• Published: 30.10.2020
• Subjects: FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT; IMPREGNATING OR COATING OF PAPER; METHODS OF PRODUCING PAPER THEREON; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PAPER-MAKING MACHINES; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TEXTILES; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKINGMACHINE

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. 本发明涉及尺寸稳定且恢复性优良的纸及其制备方法，纸张包括木浆纤维60-80、矿物填料3-5、润湿剂3-5、消泡剂2-5，其特征在于，还包括氨基硅烷5-10、糖醇5-10。通过在纸浆中添加氨基硅烷和糖醇，可以赋予纸张在纸张所在平面上的X、Y两个方向上一定的微弹性，这一微弹