With the development of tape production, transparent tape has penetrated into all aspects of life. It is believed that many consumers choose large or small transparent tape intuitively when purchasing transparent tape. However, for professional enterprise procurement, the specification, size and length of transparent tape are strictly required. So it is necessary for the buyer to master some professional knowledge of transparent tape. How to calculate the tape length according to the tape diameter?
Sealing tape
For example: for example, 200 yards of sealing tape, the width is 4.0.
It has a formula from the factory: one yard is equal to 0.9144 meters, and we use a ruler to measure 1 millimeter is equal to 10 yards.
From this, we can deduce a formula that the price of a curl is equal to 200 times 0.9144 times 4 times the width times the price of one square meter.
Thickness is equal to 200 times 0.9144 times 4-4-15 times 0.004, which is to convert millimeter into meter, two units)
It is known to all the staff engaged in the production of transparent tape that the transparent tape is the tape we use in our daily life after a rough surface after high-voltage corona on the basis of the original BOPP film, and then coated with glue, and then divided into small rolls by strips. Generally, there are three specifications of 30 yard, 40 yard and 150 yard for a roll of transparent tape. At present, many transparent tape manufacturers also support customization, and carry out the production of transparent tape according to the specifications provided by the enterprise.
scotch tape
The finished transparent tapes are all rolled. How to calculate the length of the tapes?
1. First, use a ruler to measure the inner diameter of the paper tube of the tape, where the letter N represents the measured length; the following picture is the inner diameter of the paper tube measured by the conventional small tube core (one and a half inch tube) tape. The value tested here is: 38mm.
2. Then use a ruler to measure the thickness of the paper tube of the tape. Here we use h to represent the thickness of the paper tube of the tape being tested; the following is the thickness of the paper tube of the tape. The measured value here is: 1.5mm.
3. Use a thickness gauge or micrometer to measure the single layer thickness of the tape. Here we use t to represent the single layer thickness of the tape; for example, the single layer thickness of our tape is 0.11mm.
4. Let's use a ruler to measure the length of the outer diameter of the tape. Here we use w to represent the measured value. The value tested here is 96mm.
5. Finally, according to the formula = 3.1415926 * ((W outer diameter of tape / 2) * (W outer diameter of tape / 2) - (n inner diameter of tape / 2 + H) * (n inner diameter of tape / 2 + H thickness of tube core paper tube)) / T thickness of tape / 1000, the length of cloth based tape is calculated.
