Board Of Various Surface Treatment Processes (i)
Cardboard is corrugated boxes, cartons and other products of the main raw material
, its performance to products, directly or indirectly affect the inherent quality and performance. On corrugated boxes, cartons and other packaging products, has a wear-resistant, waterproof and moisture resistant, and has high strength and good air tightness, is the basic characteristics of cardboard used quality requirements. However, the mills produced by the ordinary cardboard, often do not have good abrasion resistance, waterproofing and moisture resistant and so on. Board's strength and air tightness due to the quality and grade cardboard vary. Therefore, corrugated boxes and cartons from the increased use of performance to consider, to be on board some of the surface processing of the necessary technology to fundamentally improve the quality of board performance and appearance.
Cardboard surface polishing process On packaging alone, finishing in a common process, the product through the glazing coating the surface, you can make prints enhanced water resistance, light fastness, abrasion resistance and pollution performance, but also to improve product surface brightness, so that the grade of greatly increased. Coating of paint with a variety of structures, useful coating of oil on the varnish printing, it also uses water-based polishing machine polishing, oil glazing, as well as solvent-based paint coating, UV coating paint. The characteristics of different paint coating, the product effect of surface processing technology has some differences. The same type of coating is light, because the material characteristics, different formulations, the effect of gloss, abrasion resistance, also vary. Were coated with a matt paint, the surface of printed materials have little gloss, but with certain artistic sense, some products, matt paint, craft paint effects as much as light. Whether or matte coating on the light require coating must have good abrasion resistance, can play a role in protecting the surface of India.
Oil glazing technique Oil varnish with a printing press, due to the thickness of the coating and dry coating machine by structural limitations, the printed product surface gloss and wear resistance, are not above the plane of light solvent or water based varnish effect . Therefore, this coating generally suitable for small quantities, product quality and less demanding of the ordinary.
Solvent coating process Products by solvent coating, the surface gloss and abrasion resistance are all relatively high, but because of its thinner, organic solvents such as toluene, with the volatile solvent, waste paint coating is also great. Physical and chemical solvent resistance and poor paint coating, coating easily yellowed and the strong smell of solvent is not only easy to pollute the environment, but also for production safety will be influenced to some extent, therefore, must pay attention to production operations on-site emissions, use of electric heating pipe machine drying, they should pay attention to maintaining the smooth transportation board, to prevent transmission skew the plug board drying tunnel which hit heating pipe, causing the occurrence of fire accidents.
Water-based coating technology Water-based paint with glazing
colorless, odorless, non-toxic, non-stimulating, fast-drying coatings, wear resistance, high temperature, no yellow, no color, and has good transparency and high gloss and other advantages, so the process more suitable for food packaging, surface finishing process. However, water based varnish solvent is water, the printed product after polishing prone to warping. The wear resistance second only to solvent coating paint, if there is use of PVC plastic outer cardboard packaging film, PVC plastic film is easy because the surface is sticky and the sticky coating bad film and graphic printing ink products. Therefore, the packaging material is a PVC plastic film, cardboard, water-based paint coating should not be used, but should wear the polish with solvent-based coatings for glazing, this is the company received a quality accident experience.
UV Coating Process
UV Varnish on just using UV coating on the surface of India, to form a high gloss surface of the film. After polishing film after UV irradiation, photo-polymerization reaction within the coating, light cross-linking reaction, and then rapidly solidify and dry and thus will not produce the quality of adhesion failure, the following process help to ensure quick operation.
by: lili
Revised Info Impotence Treatment Epidermolysis Bullosa - Causes - Types And Treatment Botox Treatment To Look Younger How Long Is It Going To Take To Have My Package Delivered? Esophageal Cancer Complications Esophageal Cancer - Current And Emerging Therapy Modalities Esophageal Cancer Stage 4 Treatment Hot Liquids And Esophageal Cancer TMJ Treatments Benefit an Individual Acupuncture Treatment: Acupuncture For Disorders Of The Mouth And Eyes Acupuncture Treatment: Acupuncture For Muscular-skeletal & Neurological Acupuncture Treatment: Acupuncture For Respiratory System Moxa Treatment The Great Effects After Moxa Treatment