Method for producing paper towel by wet corrugating method

Abstract

The invention relates to a method for producing a paper towel by a wet corrugating method, which comprises the following steps: when the dry degree of a wet paper page is ranged form 30% to 45% after system moulding, dehydration and squeezing of a Harper fourdrinier, corrugating by a corrugating scraper, wherein an angle formed by the corrugating scraper and a tangent of a drying cylinder is 15-35 DEG, a cutting edge angle of the scraper on the cylinder attaching surface is 55-90 DEG, and the speed ratio of the corrugation drying cylinder and the heating and drying cylinder is 1.1-1.2:1; then delivering the paper to the surface of the heating cylinder by an independent power transfer device; drying and collecting the paper and then obtaining the finished product. Compared with the prior art, the invention adopts a wet corrugating process; because the corrugation is carried out when the dry degree of a paper web is 30-45 percent, the hydrogen bond bonding force among fibers and the chemical bond bonding force of thermosetting resin, for example a wet strength agent, and the like are not formed, and the strength of the wet paper page is lower, wrinkles formed after collision by the corrugating scraper is uniform and consistent and can not generate the poor phenomena of paper scraps, paper powder, and the like.

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 using a wet creping process in the wrinkling process of heating cylinders in the production process of a Haba fourdrinier multi-cylinder paper machine. 【Background technique】

[0002] Before the present invention was made, paper towels were mainly produced by dry or semi-dry creping processes. Dry creping means that the paper web is dried first, and the product is made by scraping wrinkles from the surface of the drying cylinder with a wrinkling scraper when the dryness is 90-93%; semi-dry creping means that the paper web is first Appropriate drying, in the state of 65-75% dryness, the wrinkles are scraped from the surface of the drying cylinder by a wrinkling scraper, and then dried by a drying cylinder to a dryness of 90-93% to form a product. The problems in the production of paper towels by dry or semi-dry creping pro...