As we all know, synthetic paper is durable and suitable for printing various products including maps, menus, children's books, labels, recipes, manuals, signs and posters, but for many people, how to fold them is a very important The problem.
If synthetic paper is made of plastic, will they have the same characteristics as fiber paper in the binding process? Do you need specific equipment, parameter settings or processing? Everyone does not want to encounter accidents in the production of live parts, so we had better be able to clarify these issues in advance.
Through contact with several famous synthetic paper manufacturers, we reached the following conclusions about synthetic paper:
1. Static electricity is the biggest enemy of synthetic paper
Most problems encountered by printing houses when folding synthetic paper are caused by static electricity. If static electricity does not enter, it will increase friction, increase temperature, and reduce the humidity of the product.
We can solve this problem in many ways, one of which is to increase the humidity of the binding system. Hanging wire or drying pages in a specific area of ​​the folding machine can also play a role. In addition, air ionization or anti-static devices can also be used.
Obviously, static electricity will bring certain problems to the production, but it will not have a great impact on the effect of the product. If you observe carefully, you will find that many brand folding systems have a special static elimination function. 2. Synthetic paper can have grain direction (or no)
Most synthetic paper is biaxially stretched during the production process. These two different directions are roughly the same as the "grain direction" of synthetic paper, but it will not directly affect the printing production like the silk direction of fiber paper influences. However, some synthetic paper manufacturers claim that there is no so-called "direction" in their products.
How does the direction of synthetic paper flow affect the folding process? Generally speaking, the direction of the paper can not be considered in the folding and scratching process of synthetic paper, but when folding multiple times, in order to ensure the processing quality of the product, it is best to follow the specific direction Processing synthetic paper.
3. Press the creases like ordinary paper
Like ordinary paper, the weight of synthetic paper will also affect the quality of folding. Thinner synthetic paper does not have to crease when folding, but thicker paper needs to do so. As for the cutoff of the paper, it can be said that the situation of each synthetic paper is different-it is best to seek the opinion of the manufacturer.
Regarding the method of creasing creases, manufacturers agree that the offline operation method should be adopted, which helps to improve the quality and flexibility of products. In addition, as with normal paper, it is best to leave the hard edges of the creases on the inside of the page.
4. Save time and money through testing
Since synthetic paper is more expensive than ordinary paper, it is better to conduct a test before formal production to ensure the success of the job and reduce waste. Because it contains plastic components, synthetic paper has a strong memory function, so it is difficult to maintain the folded state. Air entrapment is also an issue that printing companies need to pay attention to at all times.
Air retention, memory problems, weight selection, and static electricity testing are all issues we need to consider when folding synthetic paper. For any project, it is very important for both parties to communicate with the printing house as early as possible and choose the best production method.
5. Don't give up die cutting (or other post-press processing flow)
In general, synthetic paper can be embossed, die cut, bronzing, laminating, gluing, punching, and cutting. But there is a problem we must consider, that is, the effect of temperature on post-press processing. If the paper contains plastic components, it is best not to use hot melt adhesives, and the temperature and speed of die cutting need to be tested and considered in advance. All manufacturers mention that keeping the die-cutting tool sharp is very important to improve the quality of the die-cutting of synthetic paper.
6. Synthetic paper is not the same
This is actually not related to the folding problem we discussed today, but it is also worth mentioning. If anyone thinks that synthetic paper is plastic paper, it is a big mistake. Each paper has a different synthesis method, and each paper uses different technologies and features. Seeing more can help you have greater initiative before making a decision.
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