The tightness of the stretch film will affect our use, so we will look at the tightness to choose when using it. So, do you know what affects the tightness of the stretch film? Today, our Xiaobian will come to introduce with you, I believe that we can bring some help to everyone, so that everyone can better understand it.
The free energy of the surface of the stretch film determines whether the stretched film has excellent tightness, and the tightness of the stretched film surface depends on the molecular structure of the film material itself. The tightness of the stretched film has many influencing factors.
1. Non-polar polymer, the stretched film has a small free energy on the surface and a low surface wet tension, generally about 30 dynes/cm.
Second, polyester (PET, PBT, PEN, PETG) is a polar polymer with a high surface free energy and a surface wet tension of 40 dynes/cm or more.
Third, aluminum plating will occur when aluminum plating, and the rubber layer will be transferred when the glue is applied.
Q: What is the difference between printing 100 rolls of tape and printing a piece of material?
A: Printing a piece of material will reduce a lot of errors, the quality of the printed tape is better, the logo effect is better, and 100 rolls may be printed without the perfect material.
Q: What are the classifications of tape by material?
A: The tape can be divided into ordinary tape, hot melt tape, kraft paper tape, double-sided tape, masking tape, anti-counterfeit tape and so on.
Q: Do you have quality certification for your tape?
A: Yes, our tapes have SGS, ROHS and other quality certifications.
Many friends are not very familiar with the problem of stretch film and stretch film, so today our Xiaobian will share with you about this issue, to see what is the versatility and use between them, let everyone Better understand and use.
The versatility and use of the stretch film and stretch film are as follows:
Primary protection: Primary protection provides surface protection of the product, forming a very light, protective appearance around the product to achieve dust, oil, moisture, water and security. It is especially important that the wrapping film package makes the packaged articles evenly stressed, and avoids damage caused by uneven force. This is not the case with traditional packaging methods (bundling, packaging, tape, etc.).
Unitization: This is one of the biggest features of wrap film packaging. With the superior winding force and retracting property of the film, the product is compactly and fixedly bundled into one unit, so that the scattered small pieces become a whole, and the product does not have any looseness and separation even under unfavorable environment, and there is no sharpness. The edges and stickiness are so as not to cause damage.
Cost-saving: The product packaging can be effectively reduced by using the wrapping film. The winding film is only about 15% of the original box packaging, about 35% of the heat shrinkable film, and about 50% of the carton packaging. At the same time, it can reduce the labor intensity of workers, improve packaging efficiency and packaging grade.
Compressive fixation: The product is wrapped by the retractive force of the stretched film to form a compact, space-saving unit, so that the trays of the product are tightly wrapped together, which can effectively prevent the products during transportation. The mutual misalignment and movement, the stretchable stretch film and the adjustable tensile force can make the hard product close to each other, making the soft product tight, especially in the tobacco industry and the textile industry.
Q: What color is the tape?
A: You can customize according to the color you need. Generally, the colors are transparent, white, yellow, black, red, etc.
Q: Where are the tape thicknesses 48u and 55u?
A: The difference in tape thickness is reflected in the quality. The viscosity of the 55u tape and the tensile force are better than 48u.
Q: Do you have other tape products besides tape?
A: We also have a tape gun for the tape and a tape machine.