Processing technique of tung oil floor

Abstract

The invention discloses a floor, in particular to a processing technology of tung oil floor, which is mainly used for processing solid wood floor. The processing steps of this processing technology are as follows: after sanding the front surface of the board with a moisture content of 7-12% and four sides without grooves, bake and preheat to 50±5°C, wipe a layer of cooked tung oil on the front surface of the floor with a cotton cloth ; After the floor is dried for 6-10 minutes, bake and preheat to 50±5℃, and then wipe a layer of cooked tung oil on the front of the floor with a cotton cloth; Then at room temperature 25±10°C, wipe a layer of cooked tung oil with a cotton cloth on the four sides and back of the grooved floor; wait for the floor to dry for 8 to 12 minutes, then wipe a layer of cooked tung oil with a cotton cloth on the six sides of the floor. Tung oil, after drying for 24±4 hours, pack it for inspection and put it into storage. The invention has the advantages of environmental protection, anti-deformation, moisture-proof and moth-proof, and retains the original natural properties of wood.

Description

technical field [0001] The invention relates to a floor, in particular to a processing technology of tung oil floor, which is mainly used for processing solid wood floor. Background technique [0002] Wood flooring is the main floor decoration material for modern living room decoration. According to the material and structure, it can be divided into solid wood flooring, solid wood composite flooring, laminate flooring, cork flooring, bamboo flooring, PVC flooring, etc. Among them, it is true that it is truly environmentally friendly, elegant, and noble. wooden floors. 99% of the solid wood flooring is lacquered flooring. The lacquered flooring is divided into two kinds of UV (ultraviolet light) and PU oil finishing processes. Ordinary UV and PU process paint floors only pay attention to the surface paint, resulting in "weakness" on the back of the floor, which is very easy to Deformation due to water absorption or loss of water. Again owing to what use is chemical paint (u...

AI Technical Summary

Problems solved by technology

Although this kind of floor has better moisture-proof and moth-proof characteristics, it still has some shortcomings: 1. It uses a mixed oil of linseed oil, castor oil and tung oil, among which linseed oil has high unsaturation, poor stability, and is easy to oxidize and deteriorate automatically. , even if it is stored for a short time, it is easy to go rancid, and the linseed oil has poor scratch resistance, hard at the top and soft at the bottom (see China Business Knowledge Network http: / / knology.chinaccm.com / ), so it is difficult to ensure that the mixed oil is on the floor 2. The temperature during the floor processing is as high as 180°C, which destroys lignin, one of the three major components of natural wood. Lignin is a thermoplastic substance. When there is moisture, under the action of temperature, Lignin softens, and as the temperature rises, the softening degree increases, because lignin is composed of various phenols with different degrees of polymerization, the melting point is different, and the degree of softening at different temperatures is also different. The temperature at which all lignin melts , coniferous wood is 170 ° C ~ 175 ° C, broad-leaved wood is 160 ° C ~ 165 ° C, after cooling, it will condense, become hard and brittle (see "Wood Processing Technology" published by Northeast Forestry University Press in April 1998) 19 pages), the proportion of broad-leaved forests in the domestic solid wood flooring market accounts for more than 98%, so processing wood with this process is not conducive to the original natural structure of wood; Natural wood loses its original "breathing" function, and high temperature and high pressure soaking will cause the whole floor to contain too much vegetable oil, and the room after paving will have a peculiar smell of vegetable oil, covering up the original natural fragrance of wood; 4. In the specific example of the patent specification, it is mentioned that "it can also be the floor after the groove is cut". If the solid wood floor is soaked under high temperature and high pressure after the groove is cut, it will definitely cause deviations in the size and shape of the floor, making it impossible to achieve To national standard requirements