Shanghai Yongxi Packing Material Co., Ltd.


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Teach you how to distinguish the advantages and disadvantages of transparent sealing tape

0010010 nbsp; 0010010 nbsp; general packagingTransparent sealing tape(BOPP biaxially oriented polypropylene downstream products) is an indispensable item in the life of any enterprise, company, or group, but how to choose, many consumers think that tape is expensive, and the viscosity of the hand is better. In fact, this Are all wrong. The adhesive tape is a tape that is rough on the base of the original BOPP film, after one side is rough, coated with glue, and then distributed through the fire strips. The small roll is our daily use tape, so first of all the strength of the tape depends on the quality of the BOPP film and The thickness of the BOPP film made of the original material particles has good brightness, strong flexibility, and low impurity black spots. The adhesive tape made of this film does not add toner to stop the impurities from covering, so the finished transparent tape is pure white color. After the finished product is placed for about a week, the transparency of the tape under 100 meters is very high. The thickness of the ordinary film is between 28 microns and 30 microns, but because the strength of the BOPP film partially doped with recycled materials decreases, so as long as the thickness of the film is thickened, this tape feels very thick to the touch, but the strength Very poor, the storage period is very short, it will show a clear aging condition after being placed for about half a year, the appearance will be brittle, and the use is easy to break. 00 100 10 nbsp;

0010010 nbsp; 0010010 nbsp; Ordinary transparent sealing tape glue is acrylic glue, also known as pressure sensitive adhesive, and the secondary component is tincture. Tincture fat is a kind of high molecular living plant material, and the temperature has a certain effect on molecular activity. The tincture content of the glue indirectly affects the application of the tape. Many groups think that the sticky tape is good for the glue. In fact, this is wrong. There are two specifications for the quality of the adhesive tape. One is initial adhesion and the other is persistence. The two are proportional. Generally speaking, tapes with an initial tack of less than 10 are less glue-coated, and generally only need to be around 20 microns, such as stationery tapes, and tapes for general promotional bundling. The initial adhesion of a normal transparent sealing tape is between 15-20. The thickness of this tape glue is usually 22-28 microns. It is the thickness that fits the specification. However, most of the tapes on the market are doped with impurities, so the thickness is added. In order to cover the impurities, the glue is also mixed with toner. Therefore, the transparent tape shows egg yellow and light green. This tape is generally inferior. How to distinguish between good and bad colored tape?

0010010 nbsp; 0010010 nbsp; The colored tape is for convenience of marking and covering purposes. There are more common beige and earthy yellow. Many people think that the colored tape is the color of the film. In fact, the color is the color of the glue. After squeezing the adhesive and pulling it away quickly, you can pull off the glue on one side, and you can see the purity and transparency of the original film. The most important thing is to see the thickness of the glue. If no glue is pulled apart or dotted apart, there is a small amount of impurities in this glue, and the glue has no cohesion. The second is too much water, once volatilized. At this time, the initial adhesion of this tape once fell very fiercely, and the feel can be distinguished.

0010010 nbsp; 0010010 nbsp; Apply yellow tape to the object, the better the covering, the thicker the glue, the better the quality. Compared with the appearance of the tape, less glue is applied, the color of the whole roll of the doped tape is very dark, and the light transmittance of the tape is high after it is opened. The color of the whole roll of good tape is not much different from the color after it is pulled apart. Due to the strong covering ability of good transparent sealing tape, there is no color superposition. The doped and inferior tapes need to apply impurities to the BOPP film. As long as the indirect sizing method is used, the large impurity particles are often not completely dissolved to show the situation of the knife. There are lines (in the middle without glue). Good tape adopts the method of soft glue transfer and gluing, and there is no line condition (printing tape shows ink leakage and less printing status is related to the printing machine).

0010010 nbsp; 0010010 nbsp; Another way to distinguish is to look at the appearance of the tape. There are bubbles when the tape just passes the fire strip to the finished product. The bubbles will disappear after a week of standing. The tape is bright and has no white spots. Adhesive tapes have many white spots scattered irregularly, which are different from air bubbles if they are not scattered by hand. In summary, everyone can judge the quality of the tape from the appearance of the tape. The most important condition for distinguishing the good and bad tape is not to feel the viscosity by hand alone, because the doped tape is not volatile. The initial adhesion is very high, so you need to stick the tape to the object and then pull it away to see the perseverance. Repeat the pasting a few times and then touch it by hand, and you feel clearly that the resistance has dropped. The time when the doped adhesive tape is used to stop the glue formulation usually needs to be dissolved with gasoline and acid, so the breath is very large. Large companies on the right track use toluene to dissolve, which has been volatilized by the fan during the coating process. There is another result, what is the difference between good and bad tape in application?

0010010 nbsp; 0010010 nbsp; In fact, our purpose of using adhesive tape is not to stick to the results, but to be strong and not separate. Nowadays, most of the tapes doped with impurities will appear to collapse after a period of time (from 20 minutes to {{3}} hours), and they cannot be pasted again, especially It is more distinct in the environment with low temperature and dry conditions with wind. Inferior tape is easy to break again, the strength is very low, and it is mainly related to the quality of the film. The tape paper tubes consumed by the right-track companies all use high-density paper tubes with no paper scraps on the cut surface, and the thickness of the paper tube is {{3}} less than 100 meters. 3}} Above 00 meters is 4-5 millimeters, and small businesses use thick paper tubes for blind consumption, usually up to 5-7 millimeters thick, which is relatively large in appearance, but the thickness of the glue is A very clear comparison. Therefore, when choosing the tape, you must clearly see the width of the tape and the thickness of the tape. Also note that because the poor quality tape is mixed with a small amount of impurities, there is no noticeable gap between the tape when the tape is wound, so the situation is different. The volume of the next conference is relatively large, thereby deceiving consumers.