Production process of high-strength oxhide non-woven leather fabric

Abstract

The invention belongs to the technical field of textile, and in particular relates to a production process of a high-strength oxhide non-woven leather fabric. The production process comprises the following steps: mixing 20% of polyester fiber with 80% of nylon fiber, carrying out cross-laying by a lapping machine, and preparing a non-woven fabric through a spun-laced machine; mixing 93% of oxhidefibers with 7% of polyester fiber to form a mixed fiber layer, carrying out cross-laying by the lapping machine, putting the prepared non-woven fabric under the mixed fiber layer for transportation bya conveyor belt during cross-laying, and carrying out high-pressure spunlace on the mixed fiber layer and the non-woven fabric together through a spun-laced machine to form an oxhide non-woven leather fabric; shaping the prepared oxhide non-woven leather fabric in an oven, flattening and polishing the surface of the fabric, and passing the fabric through a hot roller; and finally, arranging a layer of PU on the surface of the fabric. According to the production process of the high-strength oxhide non-woven leather fabric, provided by the invention, the produced product has high tear strength,high wear resistance on the surface and high scratch resistance. Moreover, making full use of scraps of real leather to turn waste into valuables not only reduces the production cost, but also reduces the pollution to the environment.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a production process of high-strength cowhide non-woven leather cloth. Background technique [0002] The application of genuine leather is from the initial clothing, shoes and hats, bags, to later furniture, car interiors, and subsequent sports equipment. The application field of genuine leather involves almost all aspects of people's lives, such as packaging, ticket holders, For sofas, car cushions, home interiors, etc., the consumption of genuine leather is as high as two million tons per year. However, the source of raw leather is limited after all, and the output of raw leather is far from meeting the domestic demand for leather. Therefore, domestic raw leather basically still relies on imports. According to statistics, the annual import of foreign raw leather is more than 937,000 tons, and the amount is as high as 1.821 billion U.S. dollars. The leather product...

AI Technical Summary

Problems solved by technology

Therefore, there are many leather production processes, and because of the uneven size of the original leather and the large difference in the quality of each original leather, the leather cannot be produced continuously on a large scale, the production output is low, the energy consumption is large, and the quality and size of the produced leather are different. wait a minute

Furthermore, due to the limitation of the size of genuine leather, the actual leather usage is low, cutting is inconvenient, and production efficiency is low.

In addition, because the leather finishing is basically achieved by spraying process, the surface and resin binding property is not high, and the scratch resistance is poor. The products produced often have problems such as surface wear and scratches after use.

[0003] In addition, the tanning agents used in the traditional leather pickling and tanning production are heavy metals such as hexavalent chromium, which greatly endangers the health of production workers; most of them use organic solvent-based resins as the basic raw materials for production and processing during finishing production. Most of them are dimethylformamide DMF and toluene TOL. These solvents are toxic to the human body and are highly irritating to the human respiratory tract. Long-term exposure can cause damage to the human liver and kidneys.

Therefore, traditional leather not only destroys the surrounding environment of the factory during the production process, endangering the health of production workers, but also contains heavy metals and organic solvent residues in leather products, which will pollute the home living environment after being made into daily necessities, and cause serious damage to people's life and health. harm