Application of HF-6 carton water repellent in white cardboard carton HF-6 carton water repellent is a special waterproof agent for white cardboard carton. It solves the high-end development requirements of the carton packaging industry. Its operation method is simple. After the cardboard printing process is completed, it can be brushed with a glue machine. After completion, soft brush, foam sponge, hand brushing or spray gun spraying can be used.
There are three types of waterproof corrugated cardboard used in corrugated boxes according to the degree of waterproofing and the waterproof processing method. Hydrophobic corrugated paperboard is generally coated with a hydrophobic material such as wax or silicon that is not exposed to water, and encounters a large amount of water. The waterproof effect is completely lost. The water-repellent corrugated paperboard uses a resin mixture mainly composed of paraffin to form a waterproof film on the surface of the corrugated board, but the part that does not cover the water is completely incapable of resisting the penetration of water. The water-resistant corrugated paperboard is used for the whole board. Paraffin wax and resin impregnation process will lack hydrophobicity, due to the fact that it is not possible to coat with low water repellency.
Due to its rich materials, low price, foldable, adaptable, and non-polluting properties, the paper packaging has a wide range of uses. Corrugated paper boxes and other paper products have an irreplaceable position, but they also have poor water resistance. Due to its low barrier properties and low wet strength, the scope of its application can be further broadened through the treatment of water and moisture.
With the development of economy and technological advancement, people pay attention to their practicality and also care about the external appearance of the carton for packing and transporting, storing fruits and vegetables, and foods. Because the shape of the carton that is designed and decorated is often used to enhance the sales function of packaged goods with its delicate shape and bright colors, some beautifully used, colorful, and beautifully printed can also be used for collection or decoration. However, many packaging cartons do not have a few days, and their surface appearance is deformed or rotted. Therefore, under the premise of ensuring that the cartons meet the physical performance and appearance quality standards, their waterproof and moisture-proof functions are enhanced, and the durability and convenience of the cartons are enhanced. Storage is increasingly important in the current production of corrugated cartons.
The traditional corrugated boxes are generally made of resin, clear oil, and V oil (moisture-proof oil) because they are labor- and time-consuming when they are used. They need to be cooled after being painted or dried in a heated form. They are easy to cause damage to corrugated boxes. Pollution, does not meet the health requirements, is not suitable for the requirements of the development of the times, as the waterproof processing materials used in the market is more paraffin, because of its lower cost, excellent waterproof performance, and harmless. At present, the promotion of HF series corrugated cartons and paper products water repellent agent is effective in waterproof and moisture proof. Its operability is strong, bright surface after coating, non-toxic, odorless, and can improve the physical properties of corrugated boxes, does not affect the printing and sealing, is an ideal waterproof, moisture-proof material. The water-resistant processing can be performed on the boxboard and the corrugated medium, and on the cardboard or after the manufacturing.
one. The application of HF-2 water repellent in corrugated board production line The imported corrugated board production line is generally equipped with waterproof and moisture-proof materials. However, there are not many equipments for domestic corrugated production lines, which will easily affect domestic corrugated board production. The quality of the cardboard. In order to solve the problem of coating water-proof and moisture-proof materials on the domestic corrugated board production line, according to the difference between the outer coating and the inner coating, the method is described as follows:
1. Inner coating of waterproof, moisture-proof material (coated paper) in the paper into the corrugating machine will be installed scraper coating device or knife shaft roller coating device can be solved.
2. When applying waterproof and moisture-proof materials (coated paper), it can be solved by inserting a glue coating device into the preheater on the face paper, and a glue coating device can also be installed under the powder adhesive device. It is worth mentioning that no matter whether it is inner or outer coating, it is necessary to control the moisture of the surface paper and the inner paper, so as not to produce warpage in the production of cardboard. If there is warp in the paperboard, adjustments can be made. The method of solving the preheating area can also be solved by referring to the related methods for solving the warp of the cardboard.
two. Application of HF-3 Water Repellent in Small Carton Factory (No Corrugated Cardboard Production Line) For small carton factories without corrugated board production line to solve the problem of waterproof and moisture-proof of corrugated boxes and waterproof and moisture proof of honeycomb paper products, HF is adopted. -3 type water repellent is an ideal choice. Its operation method is simple and can be completed after the board printing process. Use glue machine brushing. After finishing the box, soft brush, push roller, foam sponge can be applied manually and sprayed with a spray gun. Drying and drying are not needed. It is an ideal waterproof and moisture-proof material.
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With the development of the packaging industry. The requirements for waterproofing and moisture-proof materials will also become more and more prominent. While increasing the production capacity of paper and board, it will also continue to promote the development of such new products to meet the needs of carton packaging. (Qingdao Hongda Packaging Accessories Factory Wang Jixiang, Shandong Qifeng Packaging Co., Ltd. Song Zhihua)
