Method for producing paper towel

Abstract

The invention relates to a manufacturing method of a crepe paper product. A method for producing a paper towel comprises the following steps of: selecting 70-80 % of bleached softwood pulp and 20-30 % of straw pulp as raw materials; pulping the pulp by using a pulper, after beating the pulp by using a disc mill and adding auxiliary materials of an expanding agent, a softening agent and a wet strength agent to the pulp, molding, dehydrating and squeezing the pulp by using a Harper fourdrinier system; creping a wet paper sheet in a creping cylinder when the dryness of the wet paper sheet is 30-45 %, wherein an angle between a creping knife and the tangential line of a cylinder surface is 20-30 degrees, the cutting edge angle of a scraping knife sticking to the cylinder surface is 60-85 degrees, and the speed ratio of the creping cylinder and a heating cylinder is 1.15-1.18:1; and then drying the wet paper sheet by using the heating cylinder; and winding, rewinding and slicing the paper sheet so as to obtain a finished product. The method for producing the paper towel, provided by the invention, has the advantages as follows: through fiber variety and proportion selection and through the adoption of a wet creping process, the paper towel are produced; and the produced the paper towel has the advantages of tensile strength and proper air permeability; and the strength, wet strength, hydrophobicity, air permeability, flexibility and the like of the paper towel all reach higher standards; therefore, high quality and low cost are achieved.

Description

technical field [0001] The invention relates to a method for manufacturing crepe paper products, in particular to a method for producing paper towels by selecting fiber types and proportions and adopting a wet creping process in the production process of a Haba fourdrinier multi-cylinder paper machine. Background technique [0002] Paper towels are disposable sanitary products in the existing household paper, also known as paper towels. Paper towels leave no lint on hands after use, are soft and comfortable, and have gradually replaced electric dryers in bathrooms and are very popular. There are two important indicators for paper towels: 1. Water absorption: high water absorption is the guarantee for a piece of paper to wipe your hands; 2. Wet strength: After the finished paper is saturated with water, it will generally lose most of its strength. The remaining strength is called Wet strength. The wet strength of toilet paper is higher than that of toilet paper. If the wet ...

AI Technical Summary

Problems solved by technology

The problems in the production of paper towels by dry or semi-dry creping process are: 1. During the creping process, due to the fierce collision of the scraper against the paper web, and the fact that the paper web and the surface of the dryer are already in a state of easy peeling, so After the scraper is wrinkled, the wrinkles on the paper surface are thick and flat, resulting in a decrease in the decontamination ability of the paper, and it is soft and not stiff, which affects the use effect; 2. It is easy to destroy the hydrogen bonds between the paper fibers and the chemical bonds of thermosetting resins such as strong wetting agents. Therefore, the strength of paper towel paper is low, especially because the paper is fluffy and produces paper scraps and hair dust, which leads to problems such as sticky hands and broken hands during use, and the use effect is poor.