Novel environmental protection TPU advertising cloth

Abstract

The invention discloses a novel environmental protection TPU advertising cloth, which comprises a base cloth and TPU films at two sides of the base cloth. The TPU film comprises the following components in parts by weight: 50-65% of thermoplastic polyurethane, 5-10% of aliphatic diisocyanate, 10-20% of carboxymethylcellulose sodium, 5-10% of anatase-type nano titanium dioxide, 3-8% of a modified ultraviolet ray absorber, 2-5% of a butyl reclaimed rubber, 1-4% of paraffin oil, 0.5-1.2% of a flatting agent, and the balance of an environment-friendly solvent. The employed TPU material has the advantages of no odour, easy processing, and low cost, and is 100 percent recyclable, can substitute PVC, and can effectively improve the yellowing problem of the advertising cloth due to long-term irradiation; the employed modified ultraviolet ray absorber makes the ultraviolet ray transmittance being 5%, the used butyl reclaimed rubber has the efficacy for preventing shock and reducing noise, and is obtained by processing and refining the waste and old butyl rubber, the waste is used, and the used butyl reclaimed rubber has the advantages of economic performance and environmental protection; the polyester filament gridding cloth and a TPU film solution enable on-line applying through a lamination machine, and no glue is added.

Description

Technical field [0001] The invention relates to an advertising cloth, in particular to a new type of environmental protection TPU advertising cloth. Background technique [0002] The advertising industry has risen rapidly in the information age, and advertising cloths are everywhere in the streets and alleys. Generally, the use period of outdoor advertising ranges from a few days to a year or even longer. At present, most advertising cloths use polyvinyl chloride (PVC) coating. As a digital inkjet, PVC has bright color, corrosion resistance, strong durability, but poor thermal stability and light resistance. Hydrogen chloride will be decomposed when exposed to the sun for a long time above 100°C, and the hydrogen chloride released is toxic and Corrosive, the color of the degraded PVC becomes darker and the strength decreases. In addition, polyvinyl chloride easily penetrates into the fabric, the amount of coating is large, and the fabric is easy to be hard; the coated fabric is ...

AI Technical Summary

Problems solved by technology

[0003] Thermoplastic polyurethane elastomer (TPU) material is a kind of odorless and easy-to-process environmental protection material. It is mainly divided into polyester type and polyether type. TPU has excellent characteristics of high tension, high tension, toughness and aging resistance. Wide hardness range (60HA-85HD), wear-resistant, oil-resistant, transparent, good elasticity, widely used in daily necessities, sporting goods, toys, decorative materials and other fields, and can also replace PVC to meet environmental protection requirements in more and more fields. Although TPU material has obvious advantages over other materials in terms of performance, its comprehensive performance still cannot meet the needs of some occasions, and further improvement is needed to meet the needs of the market.