Everyone has seen or used stretch film, stretch film is in a roll, there is a hollow tube inside, and stretch film is wound on the top, so the stretch film is more orderly, and not easy to fold or crease. It is generally understood that all the stretch films we use are wrapped together by a reel in the middle. No matter whether large or medium-sized stretch films or those small or medium-sized stretch films, a small reel is placed in the middle. Careful customers will find that the core in the middle of the stretch film has a thick core and a thin core. What’s the difference between the two? Which should we choose when buying a stretch film? What kind of material is this paper tube made of? Next, I will give you a brief introduction to the stretch film paper tube.
Stretch film tube raw materials for manufacturing
The stretch film is generally made of environmentally friendly paper core, which is originally very expensive to transport to other places, so we can improve our capital by changing the direction. After all, the paper core only plays a load-bearing role. However, many customers have reduced the net weight and replaced the gross weight with heavier paper cores in order to make the company’s products more competitive.
Here, as a stretch film consumer, many times need to do according to the needs of customers. In addition, stretch film is a low-cost, easy-to-consume product. Consumers pay little attention when shopping. They basically buy according to their past purchasing habits, unless there is a serious product quality problem. In the selection of tube core raw materials, first, the paper core is an environmentally friendly, cheap raw material. In this case, the thermoplastic elastomer (TPE) core is too expensive and ineffective. Unless said customer demands, paper core generally acquiesces. Therefore, when choosing the stretch film, we must think clearly to see if the weight of each roll is net weight or gross weight. Otherwise, it will cost a lot of money, waste a lot of time, and increase the warehouse burden.
Stretch film paper tubes are tubular objects made of paper, most paper tubes are spiral paper tubes and seamless paper tubes. The quality of paper tubes directly affects the quality of customers’ goods.
Factors affecting the quality of the paper tube
- Compactness. The paper tube is relatively tight, when the goods roll-off, the paper tube will not suddenly lose, and affect the goods roll-off, so when choosing, we must look at the tightness of the paper tube.
- Taste. The taste of paper tube glue directly reflects the quality of glue, good glue should be organic glue, the taste is not flushing, if the smell of paper tube is very flushing, it is said that the quality of gelatin is not good, so not only affect its tightness but also make your goods attached with odor, affecting your customers’ evaluation of goods.
- As we all know, products can be reused if they can be kept for a long time. Many companies in the acquisition of paper tubes, and not immediately used, them if there is no mildew or a little damp condition, and the quality is good.
- Weight. Many customers attach great importance to the price when buying stretch film, but there is still a problem with the weight of the tube core. Generally, we use calcium plastic core in production, which is the plastic tube core often said by customers. When people buy stretch films, they should pay attention to their gross weight or net weight. Because the tube core occupies a certain weight, some manufacturers will count the weight of the tube core and the weight of the stretch film together. If they do not pay attention, they will be easily fooled.
When choosing a stretch film tube core, a paper tube is often chosen as the tube core. On the one hand, it is environmentally friendly and the paper material can be degraded and recycled. In addition, the logistics cost to the provinces is relatively high, and the direction change will increase the cost, while the tube core only plays a load-bearing role. In order to improve competitiveness, some companies will reduce the net weight and use heavier paper tubes to increase the gross weight.
Stretch film is a low-consumption product, and people will pay less attention to it when they buy it. If they buy it according to their previous habits, they will not pay attention to it unless serious quality problems occur.
However, more attention to stretching the core of the stretch film can ensure that the amount of stretch film is sufficient to avoid increasing costs. Now paper tube core is used more, as this material is environmentally friendly and cheap, TPE and other materials of the tube core price is relatively high, and the use effect is not particularly good, therefore, if the customer does not have special requirements, manufacturers will generally use paper tube core.
It is made of multi-layer yarn tube paper by gluing, winding, and cutting. Can be deep processing, with fine cutting machine cutting into different lengths of paper tube, size according to customer requirements production, length standard, uniform weight, smooth surface, clean, strong adhesion, strong pressure resistance, complete variety, safety and environmental protection,
Paper tubes currently used in the market
- The inner diameter of the paper tube
Most of the paper tubes used by customers are 2 inches and 3 inches, which are selected according to the requirements of customers or the size of the machine. - Paper tube material
The impurities in the yellow sand cement pipe, which we eliminated 10 years ago, will fall out and contaminate the product. - Paper tube weight
Pure paper, moderate weight, matching stretch film according to customer requirements;
Heavy yellow sand cement pipe, is too heavy, some businesses’ jerry-built pipe weight can reduce the weight of the stretch film. - Paper tube smell
The pure paper tube has no glue smell, or yellow sand cement pipe smell and will pollute the product.
Stretch film paper tube is a part of stretch film. Sometimes the quality of products will affect the experience and use of customers. Hope we can help you, please contact us if you have any questions.
