More Information You Should Know Before Paper Turn Up Tape Selecting

Paper turn up tape is an essential accessory for paper changing equipment. As a strip shaped material, it can be greatly used for changing paper rolls and securing the beginning and end of the rolls.

Usually, paper turn up tapes are divided into plain paper change tape and adhesive paper cutting tape. They are all made of 100% virgin wood pulp, so you can recycle them back into the pulp, both help you make full use of pulp resources and is more environmentally friendly.

The Precautions for Paper Turn Up Tape Use

The Paper Turn Up Tape Store Environment

The temperature and humidity in the reel area have a significant impact on the stability of the automatic roll changing system. High temperature and high humidity environments can easily lead to condensation on the reel roll equipment surfaces, increasing the risk of failure during paper web threading.

If the paper turn up tape absorb moisture during storage, their flexibility and dimensional stability may also be compromised, thereby affecting the success rate of reel changes.

Therefore, Sun Hong recommends storing paper turn up tapes in a cool, dry, and clean environment before use, protecting them from direct sunlight and drastic fluctuations in temperature or humidity.

Pre Use Inspection

Before you install the paper turn up tape, verify that its surface is clean and free from moisture, creases, significant wear, or contamination. Additionally, check that the tape's dimensions, including width, thickness, and length, meet equipment specifications to prevent loading issues or roll change failures caused by dimensional discrepancies.

Establish Standardized Paper Turn Up Tape Operating Parameters

Operators should establish standardized protocols for the use of paper turn up tapes tailored to different paper grades, basis weights, and equipment configurations. These protocols should cover parameters such as threading length during reel changes, slitting air pressure, paper feeding pressure, braking pressure, and tape length.

Standardizing operating parameters helps ensure consistent performance across shifts, minimizes human error, and enhances production stability, thereby increasing the success rate of automatic reel changes and reducing unplanned downtime.

One Question You May Overlook For Your Paper Turn Up Tape Selecting

Symptoms of Mismatch Between the Paper Turn up Tape & the Slot Dimensions

It’s always overlooked, but important for you to know that reel change failures are not always caused by the paper turn up tape itself. In many cases, the real culprit is a dimensional mismatch of just a few millimeters between the paper turn up tape size and the reel slot tolerance.

When the reel equipment is running, if the width of the paper turns up tape you use exceeds the range allowed by the slot, it will cause additional friction. If the paper turn up tape is excessively thick, it may not pass smoothly through the slots of the paper machine's reel system.

Ultimately, these issues can lead to interruptions or even accidents during the reel change process, while the resulting increase in localized contact pressure can compromise the stability of the transfer operation.

Why Is Dimension Mismatch Often Overlooked?

During your production process, you may have encountered issues with reel changes or paper turn up tape breaks and jams, but forget about them once operations resumed.

Problems stemming from dimensional mismatches do not necessarily occur continuously.

The equipment may operate normally most of the time, but roll change anomalies can suddenly occur during high speed production, paper grade changes, or changes in roll diameter.

Consequently, when problems arise, the focus is usually on checking the mechanical systems, tension control systems, or operational procedures, while the dimensions of the paper turn up tape itself is rarely considered the root cause.

How to Avoid the Mismatch Between the Paper Turn Up Tape & the Slot Dimensions

Don’t Guess, Measure First

Before you or your employees make a purchase to the paper turn up tape, you should first verify the operating speed, slot width, depth, and permissible thickness for the paper machine's reel system.

It should also be noted that many mills measure once and use the same specification for years. However, wear and maintenance activities can gradually change slot dimensions over time.

How To Make a Correct Measure

• Shut down the machine and clean the slot to prevent paper dust from affecting measurements.

• Use a vernier caliper to measure the depth and width of the slot. Note that variations in measurement technique and temperature can lead to data discrepancies. It is recommended that a skilled technician perform multi point sampling to minimize errors. Additionally, since slot wear is often uneven, measurements should be taken at the entry, middle, and exit points of the slot.

• Record the specifications of the paper turn up tape currently in use, including its width and thickness.

• For high speed paper machines, it is recommended to verify slot dimensions during scheduled equipment maintenance.

• Confirm the appropriate tolerance range with your supplier.