Thermal Insulation Jacket is made of PTFE impregnate(coated) fiberglass fabric, which is made into Valve Insulation Jackets for environmental and chemical resistant.
The basic fiberglass is satin weaved, which ensure the high tensile strength of the Thermal insulation jacket, and PTFE coating is flexible in order for making jackets into any different shapes and sizes.
1, light source: UV light source is generally used high-pressure mercury lamp or metal halide lamp (induction lamp is better), the power of the light source also requires stability. High-pressure mercury lamp output power is generally 80 ~ 120W/cm, in order to ensure that the paint curing speed is less than 0.5s.
2. The paper coating is not suitable for the processing of easily permeable paper, because the low molecular weight material in the coating can easily penetrate into the paper, causing the paper to become dark or even saturated. In this case, only speed up printing and increase the number of tubes. In order to prevent the infiltration phenomenon, it can be coated with an infrared primer on the bottom layer first to avoid the infiltration phenomenon when the coating is applied. 3 Ink: It is necessary to pay attention to the problem of the combination of the coating and the ink. If necessary, first apply a primer.
4, coating thickness: After the photo-curing coating is irradiated by ultraviolet light, the photo-initiator is initiated, and free radicals or ions are generated. These free radicals or ions cross-link with the double bonds in the prepolymer or unsaturated monomer. The formation of monomer bases. These monomer groups generate polymer solid polymers through chain reaction and complete the drying process of the coating coating. If the coating layer is too thick, the drying time is relatively long under the irradiation of the same power source. On the one hand, the drying of the coating oil is affected, and on the other hand, the moisture content of the paper is relatively reduced, which makes the paper brittle and breaks, and affects the oil layer. Abrasion resistance.
5, thinner: Polishing oil in general need to use special thinner, dilution control in the 1:0.5 to 1:1 or so, too much will affect the glazing effect (depending on the amount of coating).
6, coating brightness difference: If the paper quality is poor or rough surface, large oil absorption, should use a higher grade paper; uneven coating or coating diluted thin, viscosity is too low, should adjust the polishing machine and improve Varnish viscosity; Poor adhesion, crystallization of printed ink layers or improper use of ink additives and anti-slip agents, should improve the printing process, with or without ink additives; Varnish is too low, should adjust the polishing machine and improve Varnish viscosity.
7, glazing layer: low crosslink density. Improper use of thinners, due to the evaporation rate of alcohol solvents in summer, the diluent should be replaced or replaced with ester diluents.
8, yellow coating layer: coating is too thick, the viscosity is too large, should reduce the viscosity; polishing oil expires (use period is generally 6 months), should stop using.
9, adhesion (not dry): coating is too thick, should reduce the viscosity; lamp power is insufficient or aging, should replace the UV lamp to achieve rated power.
10, poor smoothness: coating machine roller damage or high viscosity coating oil, should replace or regrind roll, reduce the viscosity of the varnish.
11, safe production: some imported coating oil is irritating to the skin, and non-volatile, when it is attached to the skin and clothes, if it is under the condition of high temperature in summer, it may enter the skin together with sweat to cause inflammation. If the skin is covered with varnish during the production process, wash it with soapy water as soon as possible and change it in time. In addition, attention must be paid to the environmental temperature and humidity control and the hot stamping properties of paper prints after being coated with UV varnish. 
Thermal Insulation Jacket
Thermal Insulation Jacket, Removable Insulation Jacket, Valve Insulation Jacket, Thermal Insulation Blanket, PTFE Insulation Jacket, Pump Insulation Blanket
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