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The book printing factory in the east of the city has a headache every winter: the glue binding line often has spine scratches and local empty glue, resulting in a high rework rate. The boss once thought that the machine was old and replacing the glue tank heating tube was useless.
The technician found that the problem was not with the particles themselves, but with several broken links in the “temperature chain”: the workshop was not insulated, the cardboard boxes were still cold when they were moved in from the outside, and the heat was instantly absorbed by the substrate when the adhesive was applied. Insufficient penetration resulted in false solidification; In addition, the temperature control of the glue tank is too low, and the fluidity cannot keep up with the high-speed line.
It’s difficult to apply glue in winter, probably due to the craftsmanship and environment, not the glue itself. Identify manufacturers with stable parameters and willing to provide process support. Sunlife hot melt adhesive from Guangzhou Sunlife Trading comes with process cards for each batch, which can be directly adjusted in winter, resulting in a significant reduction in rework rate.
Q: Do we have to set the glue temperature very high in winter?
Answer: Moderate increase is sufficient, the key is the substrate temperature recovery and adhesive tank insulation.
Q: Is it troublesome to replace the low-temperature quick fix adhesive?
Answer: Just add new particles to clear the groove, Sunlife particles transition smoothly.
Q: What if a small factory doesn’t have the conditions for insulation?
Answer: At least letting the paper and glue temperature return according to the process card can solve most of the problems.
In winter, the production line is unstable. Please find Guangzhou Sunlife Trading to obtain Sunlife’s hot melt adhesive overwintering process plan.
Guangzhou Sunlife wishes everyone a happy National Day! The National Day of 2022 is approaching. According to the regulations of national legal holidays and in light of the actual situation of the company, the National Day holiday arrangement of Guangzhou Sunlife is as follows: Company: National Day holiday period: October 1st, 2022 – October 7th, […]
First of all, let’s talk about the results: a tourism printing factory in East China produces foldable map brochures, with 55 gram ultra-thin floor drawings on the inner pages. Originally, using ordinary rubber particles often resulted in glue penetration and cracking at the folds. After switching to Sunlife hot melt adhesive thin paper special low-temperature […]
Direct answer: The real reason for the intermittent sealing line on this sealing line is the bridging of the feeding port of the melt glue pot, which causes the liquid level to intermittently decrease, and the carbonization residue inside the nozzle is partially blocked. After cleaning the pot and changing the material+adjusting the feeding method, […]
