Production process of the hottest crystal sign

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Crystal sign production process

with the development of market economy, crystal signs are used in decoration industry and manufacturing industry. Such as trademarks, signs, badges, bottle caps and other products. Gradually tend to be artistic, three-dimensional and high-end, and improve the competitiveness of various products. Crystal glue must be used in the production of crystal signs. It is a modern surface decoration material, mainly composed of polymer transparent resin, referred to as component A. Epoxy acrylic resin plus catalyst, referred to as component B, is divided into soft crystal glue and hard crystal glue. Soft crystal glue is also divided into UV crystal glue, which is generally applicable to trademarks and signs of soft materials on the bottom plate, such as self-adhesive trademarks, soft plastic signs, paper trademarks, etc. Hard crystal glue (also divided into UV crystal glue) is generally suitable for trademarks, signs, badges, etc. of hard base plates

the specific process is as follows:

1. First place the silkscreen or offset printed objects flat on the same level of the operation board and wait for dripping

2. According to the dosage, take a clean beaker, measure accurately, mix and stir the components of a and B in the proportion of 1:1, and some crystal glue is proportioned in the proportion of 2:1, and then remove the bubbles in the mixed glue. There are two commonly used bubble taking methods: one is natural defoaming, and keep still in the container for minutes; Another kind of vacuum defoaming minutes. Note: when the temperature is low, the crystal can be heated to 40 ℃ -50 ℃; The viscosity of colloid is reduced, and bubbles are easy to float

3. Take extruded polystyrene board, which is also a material that integrates waterproof and thermal insulation. Clean it in the needle tube, inject the defoaming crystal glue into the needle tube, and then measure and evenly drip it on the surface of signs, trademarks, etc. generally, the thickness of the crystal glue layer is 2mm, and let it flow naturally

4. Minutes after dripping the crystal glue, observe whether there are bubbles or dust particles on the glue surface. If there are small bubbles, you can pick them up with a small needle. If you find that there is no leveling crystal glue in the dead corner, you can extradite with a needle

5. The poured sign will be cured for hours at room temperature of 20 ℃ -22 ℃ to become a crystal sign with a hands-free surface

6. In case of self-adhesive, trademark, etc., its thickness is very thin, and the boundary is not obvious, which affects its utilization and implementation. When pouring, it is easy to cause crystal glue overflow, and it is difficult to reach 2mm thickness. Therefore, it is necessary to grasp different situations in making crystal glue, and control the viscosity. In the process of application, it can be placed for hours to improve the viscosity and adapt to the pouring of thin crystal glue

7. Make crystal glue signs more than 2mm thick, which can be divided into two drops of plastic. After the first drop of plastic, cure for hours, and then add another layer

8. Cleaning after plastic dripping, whether manual or automatic, the machinery, equipment and containers should be cleaned after the completion. If the glue is hardened and does not dissolve in any solvent, the machinery and containers must be cleaned before it is hardened. The products made of crystal glue have the advantages of good vision, high transparency and high gloss, which should be widely used in the screen printing industry

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