The SW-2000K series of bicomponent screen printing inks have good adhesion to most printing substrates such as ceramics, metals, glass, circuit boards, double-layer boards, wood and most plastics.
Corrosion resistance SW-2000K series screen printing ink has strong resistance to chemical substances and solvent erosion. The completely dry SW-2000K Series inks can prevent the corrosion of indoor products such as oils, shampoos, detergents and chlorides, but should not be used outdoors for a long time.
Colors can be formulated in a variety of different colors. Depending on the choice of hardener, bright or matte prints can be obtained.
Although printed substrates have excellent adhesion to most printed substrates, suitable substrates must be identified before starting production.
Printed materials Direct emulsions or indirect films with specific physical properties and solvent resistance are suitable.
100-120T/cm nylon net or polyester net and 65o - 75o polyurethane squeegee are applicable.
Mixing SW-2000K inks must be completely mixed with hardeners. The storage time after mixing should not exceed 8 hours.
Varnish 888 and Shine Hardener 809 with 3:1 and 1.5:1 to high gloss finish and glossy finish.
The following three hardeners can be used depending on the situation. Refer to the following:
Usage Mixing ratio (by weight) Ink: Hardener Matte Special Hardener Hardener Hardener 8 0 9 8 1 0 8 1 1
Standard printing effect 3:1 1.5:1 ---
Maximum hardness and strongest chemical resistance 6:1 3:1 ---
Glass and Ceramic Products--- --- 20:1
If there is a change in the printing conditions, the appropriate ratio must be determined experimentally before production to meet the specific production needs.
Drying slow drying and inks that are limited by the melting point of the substrate and cannot be dried by heating, can be naturally air dried, drying time is not less than 72 hours, in order to achieve the appropriate hardness and chemical resistance. Fast drying should use convection oven or infrared drying oven, hot air drying should be avoided. The temperature control reference is as follows: the metal product is dried at 120oC for 10 minutes, the glass product is dried at 120oC for 15 minutes, and the plastic product is dried at 90oC for 10-15 minutes.
The ink adjustment depends on the printing conditions, using a suitable thinner 806 and slow-drying agent 807.
Under normal circumstances, with less than 10% of the diluent SW-806 can get satisfactory results. If too much foaming occurs, apply the quick-drying agent SW-805 for dilution.
Coverage Select the appropriate thinner and printing material, up to 25m2/kg.
It is recommended to use washing agent or thinner for cleaning.
Shelf life is stored in a sealed container and placed in a dry place at 10oC-25oC for a period of up to two years; however, hardeners cannot be used if they exceed the following times.
Bright hardener can be stored for about 12 months Special hardener can be stored for about 6 months
Precautions Pay attention to maintaining ventilation during operation, and avoid printed products from absorbing solvents in the air and affecting the printing effect.
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