Rigid board plastic flooring and its production method

Abstract

The invention relates to a rigid board plastic flooring comprising a wear layer, a decoration layer, a first connecting layer and a bottom layer which are connected in sequence, and also relates to the production method thereof. The bottom layer of the flooring is prepared using extrusion molding without adding plasticizer. The product is therefore more environmentally friendly. The edge of the click product is not easily damaged during storage and transportation as the bottom layer comprises a plastic hard board and the strength of the click profile is strong.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority of Chinese Patent Application 201510809064.0 filed Nov. 20, 2015.FIELD OF THE INVENTION[0002]The invention relates to a flooring product and the production method thereof, more specifically to a rigid board plastic flooring and the production method thereof.BACKGROUND OF THE INVENTION[0003]The floor-laying materials sold on the market so far mainly include ceramic tiles, wooden flooring, laminate flooring and PVC flooring. PVC flooring has been used in public and commercial places such as offices, schools, hospitals, pharmaceutical factories, sports arenas, entertainment facilities, shopping malls, restaurants and hotels, etc., as well as in the home because of its unique material, super performance, easy and fast installation, reasonable price and safety features.[0004]The PVC flooring shall be prepared by using the following steps: 1) preparation of the intermediate substrate middle and back layer: mix P...

AI Technical Summary

Benefits of technology

The patent describes a method of preparing a flooring product using a special coating process. The method involves applying a UV coating to the surface of a semi-finished product to increase its resistance to abrasion and give it a glossy appearance. An annealing process is then carried out to cool the product and improve its physical properties. Additionally, the bottom layer of the flooring is made using extrusion molding without adding plasticizer, making it more environmentally friendly. The click product has great strength and is not easily damaged during storage and transportation.

Problems solved by technology

Plenty of plasticizer is required when preparing the in the calender process, however the plasticizer can permeate the PVC product because it is not tightly connected with the PVC product base.

Research on animals indicated that the plasticizer might lead to a reduction in survival rate of the animal, weight loss, reduction of hepatorenal function, decrease of erythrocytes in the blood, possible mutation and cancer.

Researchers also found after examining animals' embryotoxicity that the plasticizer might also cause some serious effects such as cleft palate, spinal deformity, cardiac deformation, defects of the eyes, malformation of fingers or toes, limb deformation, etc. of the animal fetus.

The animal experiments conducted by the researchers indicated that this substance may affect the human hormonal system, especially in a growing adolescent; therefore, the European Union has listed it under harmful substances affecting reproduction.

Moreover, the edge of the click product may be easily damaged during storage and transportation because the profile of click product is of poor strength.

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