Three processing methods for reflective materials
According to the application of beads, it can be divided into three processing methods:
1, pearl coating method:
The so-called bead coating method is to mix glass beads with a binder to prepare a coating slurry and apply it to the fabric. According to the different process flow, it can be divided into multiple processing methods and one-liquid processing method.
(l) Multiple processing methods:
The base fabric is coated with a reflective layer, a coated glass bead layer and a post-treatment (transparent resin, waterproof, etc.). The base cloth is coated with a base layer to make the surface of the base cloth smooth, so as to improve the reflection effect of the reflective layer, thereby improving the reflective strength of the product.
(2) One liquid and one processing method:
This method integrates all glass bead (or plastic bead) reflective materials, coloring pigments, and binders required for multilayer structures in retroreflection processing. They are collectively referred to as "Global Systems" inks, which are then formulated into printing pastes or coating slurries that can be processed into a retroreflective product after being processed in a coating or printing process.
2, planting beads method:
The bead processing method is an electrostatic bead method in which a high electric field is generated by high-voltage electricity to charge the glass bead and is adsorbed on the fabric: or the bead method in which the glass bead is uniformly scattered on the fabric coated with the adhesive; Or by the bead method of glass beads tank.
The base cloth is coated with primer or dip-coated with a reflective layer, a binder, a bead-bone, and a post-treatment.
Roll reflective cloth
Roll Reflective Fabric Atlas
3, transfer method:
Transfer a substrate, a pre-treatment, a heat treatment, a reflective layer, a coating, or a printing process.
(1) After the composite fabric is stripped and processed:
(2) hot melt back coating - composite protective material - plastic film products - turned to the fabric.
The transfer method product has a smooth and delicate appearance and soft hand feeling. It not only has high reflective intensity, but also is waterproof, wear-resistant and washable. And back-coated special hot melt adhesive products using flexible and convenient, can be processed into cloth, can also be carved into a computer pattern, characters, turned to a variety of substrates such as clothing, leather, shoes and hats, raincoats and so on.
With the rapid development of society and economy and the improvement of living standards, the demand for safety materials has gradually tended to be high-quality, diverse, flexible, extensive, durable, and dressy. At present, the domestic research on reflective materials is still in the initial development stage. The product quality is low, and the variety is single. There is considerable contrast between the reflective intensity and other technical indicators such as wear resistance, washability, and weather resistance compared with the products of the 3M company in the United States. difference. It is still far from meeting the needs of the development of the global market. In particular, as a safety protective clothing, the work load of workers working on the expressway requires that the higher the reflective intensity, the better, and the larger the angle of reflection, the better. Therefore, it is very important to accelerate the research and development of reflective products and meet the market demand. .