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The new operator Xiao Wang was in a hurry to rush the goods in the morning. As soon as the glue tank reached 160 ℃, he poured particles into it and opened the line. As a result, the first fifty books had blank glue channels and a missing page. The old master understood at a glance: it was not preheated thoroughly and the glue was not melted evenly before being put on the machine.
Hot melt adhesive particles need to be preheated before starting up, not just ‘can be used when they reach temperature’. It takes time for the glue tank to melt uniformly from cold to the whole, especially for large glue tanks; The temperature gauge shows 160 ℃, which may be due to the heat near the probe. The lower layer of the tank is still in a semi melted state with insufficient fluidity, making it difficult to apply.
Q: Is it better to preheat for a longer period of time?
Answer: No, burning in the air for too long can cause coking. Press the card.
Q: Does the small rubber groove take so long?
Answer: The time is shorter, but we still need to wait for the overall uniformity before opening.
Q: How to determine if the preheating is done?
Answer: The adhesive solution is uniform without particles and has good fluidity. First piece verification is required.
Start up frequently and encounter problems. Please contact Guangzhou Sunlife Trading to obtain the Sunlife hot melt adhesive process card and clearly state the preheating time.
The music score book has an almost strict requirement for the adhesive:After opening, it must be able to be spread flat on the piano stand and repeatedly folded for six months without falling off the page.This is completely different from ordinary books and magazines that only need to be firm. A printing factory specializing in […]
“Intelligent Manufacturing Empowering Digital Transformation – Green Development Integration and Innovation Exhibition!” Exhibition Dates: April 11 – April 15 Venue: Guangdong Modern International Exhibition Center, Dongguan, China
As a result, a graphic printing store in Guangzhou received an urgent order from the exhibition organizer to deliver 3000 200g copperplate paper picture books within 48 hours. With the cooperation of Sunlife hot melt adhesive copperplate paper special adhesive particles and technical support, two adhesive machines were connected and operated for 36 hours to […]
Direct answer:hot melt adhesiveThe correct usage of particles can be concentrated into six steps – selecting the type according to the live parts, controlling the temperature within the recommended range, adding small amounts multiple times, controlling the opening time for pressing, keeping the glue pot clean, and not repeatedly returning the remaining glue to the […]
