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Many graphic and text store owners are afraid of changinghot melt adhesive pellets——Afraid of blocking rubber hoses, afraid of temperature switching problems, and afraid of wasting glue. In fact, as long as you follow the steps, it can be done in 15 minutes without stopping the machine for too long. The following is the standard glue changing process using Sunlife hot melt adhesive granules as an example.
Q: Can different brands of granules be mixed?
A: Not recommended. Mixing hot melt adhesive particles with different formulas may result in compatibility issues such as delamination and decreased adhesion. If a transition is necessary, rinse the hose thoroughly using steps 3-4.
Q: Does the first bound book always not stick firmly after changing the glue?
A: This is a normal phenomenon during the transition period of mixing old and new rubber residues in the hose. Squeezing 50-100g of mixed adhesive waste before starting formal binding can solve the problem.
Q: How often is it appropriate to change the glue?
A: It is recommended to clean the glue pot once a week and replace it with new glue every 1-2 weeks. If the glue is not replaced for a long time, repeated heating of the glue solution will cause severe aging, yellowing, and brittleness.
The aging of hot melt adhesive is mainly manifested in two aspects: appearance and performance. Visually, the color of hot melt adhesive may become dull, and even yellow or brown tones may appear. The texture may become hard and brittle, losing its original flexibility, and the surface may have cracks or fissures. In terms of […]
Hot melt adhesive is a type of adhesive commonly used in various manufacturing industries. Its characteristic is that it can quickly melt and solidify at high temperatures, forming a strong connection. This article will introduce the composition, characteristics, applications, and precautions of pearl cotton hot melt adhesive. 1. Composition of pearl cotton hot melt adhesive […]
Quick print shops often encounter orders with small quantities, multiple sheets, multiple covers, and tight delivery times. A more practical approach than searching for “universal binding glue” is to establish a process for confirmation, trial assembly, and parameter retention before changing orders. This article explains how to reduce rework from daily order taking scenarios. Core […]
EVA hot melt adhesive is different from regular cold melt adhesive. According to its characteristics, the following points must be mastered and noted during use: 1、 Understand and master the models and technical performance (including technical parameters) of each EVA hot melt adhesive. Different types of hot melt adhesives have different opening and curing times. […]
