Strength Guarantee


safety production

Safety Production

Perfect safety production, fire control and other management system
Perfect fire safety equipment and facilities
Clear fire safety signs
Environmental protection measures are rigorous, safe and effective
All kinds of safety equipment and facilities are complete
Electrostatic Standard Unit of Guangdong Province

information management

Information Management

Information management platform
Traceability
Quickly grasp the problem product flow
Effectively control the source of problem products to prevent proliferation
Achieve fast traceability
Increase customer confidence

 

 

 

Quality Assurance

Quality Assurance

Product quality and safety in the first place
Advanced quality testing equipment
Quality safety assurance system
Full-time technical department and quality management department
Effective control of raw materials and finished product testing
Ensure that the product quality qualified rate of 99.99% and above

Process Control

Process Control

Production automation, scale
Pipeline closed feeding
Achieve environmental protection, clean, safe production process control
High productivity, low cost, low loss, high quality
Guarantee customer order supply

 

 

Logistics distribution

Logistics Distribution

Outsourced hazardous chemical logistics company
Car LTL vehicle delivery, domestic dedicated line
Effective vehicle collocation
Dedicated staff planning and follow-up
Responsible, efficient, civilized and safe delivery
Urgent Plan Guarantee Demand

 

Customer Service

Customer Service

Full-time customer service personnel responsible for customer basic information records
Order delivery tracking service within 2 hours of order confirmation
Customer satisfaction tracking service, Customer complaint tracking service
Customer Receivables Tracking Service
Customer first, service first

Service Process


Dekang Chemical

FAQ


Common problems with liquid inks-electrostatic whiskers and electrostatic markings

Electrostatic whiskers are random strips of ink that protrude outward from the edges of the print pattern, like a beard. Electrostatic markings refer to some line-shaped markings formed in large area pattern parts, which mainly appear in printed polyolefin films. Cause: (1), plastic film is a poor conductor of electricity, in the printing process due to friction, contact, peeling and produce more static electricity. The ink itself, such as the lack of antistatic agent, will also produce static electricity after long hours of work. (2), ink viscosity is too low. (3), electrostatic elimination device loss of action (such as sticky ink, etc.). (4), plate cylinder mesh hole is too deep or roller pressure is too large. Solution: (1), generally in advance in the ink plus antistatic agent or add polar solvent. Prevent electrostatic ink spots or ink failure. (2) Control the environmental humidity, sprinkle water or put water vapor in the printing site to reduce the temperature of the printing site and increase the humidity. (3), check whether the static eliminator is good, ensure timely elimination of static electricity generated by plastic film in the printing process; grounding measures are also taken for the guide roller on the machine to prevent insulation due to its contact with the lubricating oil of the bearing part. (4), in the use of deep hole printing plate cylinder printing, to make the ink to maintain a higher viscosity, at the same time, the pressure of the rubber roller should be appropriate to prevent the ink extrusion hole.

Common Problems of Liquid Ink-Blocking Plate

Solution: (1), plastic gravure printing in the production process of blocking plate failure, should use the solvent or special cleaning agent for cleaning, and for the cause of blocking plate to be solved. (2) Adjust the appropriate environmental temperature and humidity, select the solvent ratio suitable for the printing speed and printing environment. (3) The distance between the scraper and the embossing roller is shortened as much as possible to prevent the hot air leaking from the drying box from blowing directly on the layout. (4), mixed with slow drying solvent, appropriately increase the printing speed, reduce the working ink viscosity. (5), if it is caused by oil fruit performance defects blocking version, should be timely replacement of ink (or contact with ink suppliers to solve), try to avoid the proportion of significant differences in ink combination. (6), the ink tank ink to stir frequently, so that the ink to maintain a good flow state, timely add new ink or replace the new ink, reduce the occurrence of film phenomenon. (7) The blocking plate caused by the quality of the inner wall of the mesh hole shall be plated or made again. (8), before driving or just when driving with solvent wipe printing plate cylinder. During the printing process, try to avoid stopping halfway. When stopping for a long time, the printing plate cylinder must be washed clean first, or the printing plate cylinder can be immersed in ink for continuous idling. (9), in the fresh ink, due to the temperature difference and other reasons, the ink additives, wax material crystallization, can try to use before the ink heating (temperature control in 40-50 degrees), so that dissolved. (10), misuse of solvent or ink deterioration, mixed with different ink, will significantly affect the re solubility of ink. Therefore, a regular special dilution solvent should be used, and the ink should be replaced after the ink tank and the circulating pump are fully cleaned.

Liquid Ink FAQ-Whitening

Printing ink film white, but also can be divided into two kinds of solvent whitening phenomenon and resin whitening phenomenon. Cause: (1) Solvent whitening This whitening phenomenon is more common in alcohol-soluble inks. When the humidity is high, due to the latent heat of evaporation of the solvent, the vicinity of the ink film will be cooled, causing water droplets to mix into it, resulting in whitening of the ink film. Of course, this phenomenon is more likely to occur when a solvent having a high latent heat of vaporization is used. (2) resin automatic The solvent balance in the ink is poor, the true solvent volatilizes first, and the diluent residue exists in the ink, which will cause the resin in the ink to precipitate and cause whitening. Solution: (1) Solvent whitening solution ① Reduce the environmental humidity as much as possible; Reduce the ink drying speed; ③ heating and drying at the same time of printing. (2), resin self solution: Replace the ink, or add some real solvents with slower volatilization; ② Change the formula composition of the solvent.

Liquid ink FAQ-knife line

There are regular or irregular linear blemishes in the non-printed pattern area. Cause: (1) The soft and small impurities in the ink tank are instantly clamped between the plate roller and the scraper; For example, there are precipitates in the ink (pigment agglomeration, wax powder, resin precipitation), crust caused by too fast drying, the ink tank is not cleaned, foreign matter on the substrate, etc. (2), the plate roller precision, processing and grinding poor, or with the scraper hardness does not match; (3), printing viscosity is too high, poor scraper lubrication; Solution: (1), improve the resin on the pigment package; (2) Clean the ink tank thoroughly, and then use the machine after filtering the residual ink; (3) Use sandpaper for S-shaped polishing before using the plate roller; (4), in order to prevent dry skin, appropriate use of slow drying solvent dilution.
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