Preparation technology of lotus fiber convenience bag

Abstract

The invention relates to a preparation technology of a convenience bag, in particular to a preparation technology of a lotus fiber convenience bag. The preparation technology has the following steps: harvesting and binding lotus root stalk-river water dipping-picking lotus fiber-boiling for 3 hours in caustic soda with a concentration of 1%-washing with cold water-washing with sulfuric acid with a concentration of 0.1% for 30min-washing with cold water- boiling for 3 hours in caustic soda with a concentration of 1%- washing with sulfuric acid with a concentration of 0.1% for 30min-washing with cold water-dehydrating-drying-mixing the obtained lotus fiber with jute and dacron according to a certain proportion in an opening and scutching manner-carding and forming-dipping binding agent-thermocompression drying-cutting for producing convenience bags.The preparation technology of the invention features wide source of raw materials, low cost, simple production technology process and no pollution; in addition, the convenience bag is mainly composed of natural fiber which can be degraded in the natural environment, thus being economical and practical and widely applicable.

Description

technical field [0001] The invention relates to a preparation process of a convenience bag, in particular to a preparation process of a lotus fiber convenience bag. Background technique [0002] Before restricting the use of plastic bags, the number of plastic convenience bags used in my country was about 700 billion per year, consuming more than 5 billion yuan of funds. Since the General Office of the State Council issued the "Notice on Restricting the Production and Sale of Plastic Shopping Bags" in January 2008, the production, sale and use of ultra-thin shopping bags with a thickness of less than 0.025mm has been banned nationwide since June 1, 2008. Plastic shopping bags, and all supermarkets, shopping malls, bazaars and other retail places are not allowed to provide free plastic shopping bags. The production of convenience bags has become a new economic growth point. [0003] Various places have developed and designed paper bags, cloth bags, synthetic leather, non-wov...

AI Technical Summary

Problems solved by technology

The raw material of paper bags comes from wood, which consumes natural resources and competes with stationery paper for raw materials. Moreover, paper bags are not resistant to moisture, generally have low strength and are not durable, and their application range is limited to a certain extent.

Although the cloth bag has high strength and durability, its cost is about 10 times higher than that of the non-woven bag, so its application is also subject to certain restrictions

Most of the base cloth and coating materials of synthetic leather are artificial chemical products, which have the disadvantages of high production cost, not easy to degrade, and pollute the environment, so they are not used much.

Non-woven fabrics have the advantages of short production process, high production efficiency, and low cost. Most of the convenience bags are spun-bonded polyester or polypropylene non-woven fabrics, which have good practicability, but they are synthetic fiber products after all. When used in garbage bags, like plastic bags, it will also cause white pollution, so it is imminent to find raw materials for convenient bags with low cost and environmental protection.