With the application of hot-melt adhesive film more and more widely, tpu hot melt adhesive film has also received more and more people's attention, but there are also many people who don't know it very well. There are many materials of hot-melt adhesive film, and the price difference between two different types of hot-melt adhesive film is often very large, so what factors determine the price of hot-melt adhesive film?
1. Use raw materials
The raw materials of hot melt adhesive films are various, such as EVA, TPU, PES, PA, PO, etc. The Chinese chemical names are ethylene-vinyl acetate copolymer, thermoplastic polyurethane, polyester, polyamide, polyolefin, and This is just the big category. Under each category, there are also differences in formulas and grades of particles used, etc. These differences lead to differences in raw material costs, which ultimately affect the price of finished hot melt adhesive films.
In addition, whether the raw materials are imported or domestic, the price difference is relatively large. Some types of hot melt adhesive films are developed for special applications, and it is possible to use relatively high-end imported raw materials, and often the prices of these raw materials are relatively high, which leads to the price of this type of hot melt adhesive film It will be much higher than the price of ordinary hot melt adhesive film.
2. Production process
The production process of the hot melt adhesive film will also affect the price of the hot melt adhesive film to a certain extent. Because of the different properties of raw materials such as film-forming properties and initial viscosity, their processability is different. If some raw materials must use the coating method during production, then the substrate will be used to carry the hot melt adhesive film, and the cost of the corresponding substrate will be calculated. The loss of some raw materials during production is relatively large, which will also affect the final price of the product accordingly.
3. How is the hot melt adhesive film quoted
The adhesive industry often uses how much per ton to quote, but the hot melt adhesive film industry generally quotes according to how much per square meter. This is a more convenient and reasonable way of quoting. Generally, how much per meter is not used. Because it involves width issues.
Hot melt adhesive films are usually sold in rolls and are available in certain thickness, width and length specifications. In the industry, the thickness unit of the hot-melt adhesive film is generally silk, 1 silk = 0.01mm, the conventional thickness is generally between 1.5 silk and 20 silk, that is, 0.015mm-0.2mm, and the hot-melt adhesive film is not outside this range Products are generally not made very often. If they are to be made, due to machine limitations, it is generally difficult to control the thickness tolerance if it is too thin or too thick.
The length of the die head of the machine for making eva adhesive film is generally 1m-2m. If the width is less than 1m, the cutting machine is generally used to cut according to the customer's requirements. Therefore, as long as the required width is smaller than the length of the die head, you can Can be cut. If the required width is greater than the width of the die head, it will be difficult to handle, and it can only be connected later. If it must be produced, it can only be changed to a larger die head.
The length of each roll of hot melt adhesive film is generally 100m-200m, and it can also be customized according to the needs of customers. The thinner the product, the more meters can be made, and the thicker the product, the less meters can be made.
Since the unit price is calculated by the square, we will not be affected by the width when obtaining the quotation, but are often affected by the thickness and material. Of course, the price of different materials is different. The thicker the same material thickness, the more materials used, then the price correspondingly will be higher.
4. How to inquire about hot melt adhesive film?
If you are a buyer, you need to find a hot melt adhesive film and determine the price. Then we suggest that you first determine one or several hot melt adhesive films that meet the requirements, and then make a targeted inquiry.
First of all, you must know what material you need hot melt adhesive film to bond, because it is related to the determination of the type of hot melt adhesive film, and then you plan to use what kind of process for bonding to choose whether there is a substrate or Hot melt adhesive film without substrate. Only after these two aspects are clarified, the hot melt adhesive film manufacturer can recommend suitable hot melt adhesive film products and suitable product specifications for you. After these are determined, the general manufacturer will give you a step-by-step quotation according to your usage, and the quotation is calculated based on the square price.
Of course, you can also consult the price calculated in units of meters, rolls, and tons, but it is generally converted based on the price per square meter.
