High water absorbent wet-strength paper and application thereof

Abstract

The invention relates to the field of paper making, and discloses high water absorbent wet-strength paper. The high water absorbent wet-strength paper is prepared through the following steps: repulping bleaching chemical pulp to obtain a component A; repulping bleaching chemical pulp, then processing the bleaching chemical pulp through NaOH, washing the processed pulp until a pH value of the processed pulp is 7.0-7.5 to obtain a component B; mixing the component A and the component B, adding a water absorbent assistant agent to carry out beating until the degree of beating is 28-35 DEG SR andthe fiber length is 2-2.5mm; adding a wet strength agent and a retention aid to the beaten pulp, then conveying the resulting mixture to a paper machine to obtain the high water absorbent wet-strength paper. The high water absorbent wet-strength paper is applicable for coating materials of sanitary towels and sanitary protecting pad water absorbent material. According to the present invention, the process of the method is simple; the strength of the paper is mainly achieved through hydrogen bonding between the fibers, the wet strength agent is added to enable the paper to have the wet strength property, the special adhesive is not required, such that the paper has good softness, good wet strength property, good water absorption and good water permeability property, the properties of the paper can compare with the properties of the non-woven fabrics and the dry-method paper, but the production cost is lower than the production costs of the non-woven fabrics and the dry-method paper, and the high water absorbent wet-strength paper is more environmentally-friendly than the non-woven fabrics and the dry-method paper.

Description

technical field

[0001] The invention relates to the manufacture of wet-strength paper in the field of papermaking, in particular to a high water-absorbing wet-strength paper, and also relates to the application of the high-water-absorbing wet-strength paper. Background technique

[0002] As one of the daily necessities closely related to female consumers, women's sanitary napkins have developed rapidly in recent years due to economic development and changes in people's thinking, cultural concepts and consumption habits. According to statistics, the output of women's sanitary napkins in my country in 2010 It has exceeded 60 billion pieces, and the proportion of ultra-thin sanitary napkins and sanitary pads is also increasing. The liquid-absorbent material of ultra-thin sanitary napkins and sanitary pads is mainly made of superabsorbent resin, which is covered in the middle with a coating material. This requires that the coating material has better wet strength performance, ...