新闻中心
Have you also encountered these binding difficulties?
After binding copperplate paper picture books and magazines, the spine of the book is prone to peeling and falling pages; On high-speed production lines, colloidal wire drawing scratches dirty paper, resulting in a high rework rate; After being stored for a period of time, the spine of the book turns yellow and brittle at low temperatures, leading to continuous customer complaints
Most of these issues are due to not choosing the right specialized hot melt adhesive that is compatible with copperplate paper! Today we will start with the key points of industry selection and market pattern, helping you find the most suitable solution.

The smooth coating on the surface of copperplate paper places higher demands on the permeability, adhesion, and stability of hot melt adhesive, which is difficult to meet with ordinary hot melt adhesive. When choosing glue, it is important to pay close attention to these points:
Priority for substrate adaptation: 80-200g copperplate paper, special formulas (such as HJ38C, Sunlife copperplate paper adhesive) must be selected, and ordinary adhesive cannot guarantee adhesion strength.
Core parameters must meet the standards:
Softening point: 82-88 ℃, balancing low-temperature anti brittleness and high-temperature anti sticking;
Viscosity: 4000-8000cps@170 ℃, balance fluidity and adhesion;
Open time: 8-20 seconds, suitable for different production line speeds.
Environmental certification is essential: priority should be given to products that have passed SGS, China Environmental Labeling, and FDA food grade certification to avoid risks caused by odors and harmful substances.
At present, the domestic hot melt adhesive production capacity is concentrated in the East China region (accounting for 68%, of which Zhejiang accounts for 39.2%), with Guangdong and Shandong accounting for 15.6% and 13.4% respectively. The mainstream price of EVA particle hot melt adhesive is 16-18 yuan/kg (25kg/bag).
Top enterprises such as Guangzhou Sunlife (Foshan Jucai) are more popular, among which Guangzhou Sunlife (Foshan Jucai) in our southern region has become a popular choice for customers in the printing industry.
Foshan Jucai New Materials, a subsidiary of Guangzhou Sunlife Trading Co., Ltd., is a source factory that has been deeply involved in the printing hot melt adhesive field in South China for more than ten years. It is also a long-term partner of large printing enterprises such as Shanda Printing, Xinhua Printing, and Dayang Graphic and Text. It can solve the core pain point of copperplate paper binding, and its advantages are very prominent:
What is EVA hot melt adhesive? EVA hot melt adhesive is a type of hot melt that typically has a similar shape to other types of hot melt materials, such as EVA raw materials. It can provide good strength with less adhesive, making it very suitable for adhesive applications that require less adhesive without affecting […]
Direct answer: Reverse calculate based on “single piece glue consumption x planned output” Printing factory estimateHot melt adhesive granulesThe most reliable method for monthly usage is not to rely on last year’s feelings, but to first measure the actual glue consumption of a single book or cardboard box, then multiply it by the next month’s […]
Is it normal or excessive for the glue pot to have a strong smoke and odor? Many book binding workshops have provided feedbackhot melt adhesive pelletsThere is a pungent odor after heating, and employees feel uncomfortable working in this environment for a long time. This issue is worth taking seriously – there are indeed industry […]
Sustainable hot melt adhesives for handbag manufacturing are increasingly needed by consumers and businesses for products that can meet environmental requirements while still achieving their core purposes. Handbags are no exception. Trends show a clear shift from plastic to paper, and some countries have completely banned the use of plastic bags. The < figure class="wp […]