zhiteng stretch film

  PE stretch film viscosity debugging method The  pe stretch film  uses the film's super winding force and retractability to bundle the product into a unit compactly and firmly, without any looseness and separation, and without sharp edges and stickiness, even in unfavorable environments. Damage to the packaging. So how should the viscosity of PE stretch film be debugged?   The debugging method of PE stretch film viscosity: A high-quality stretch film should have the characteristics of high transparency, high longitudinal elongation, high yield point, high transverse tear strength, and good puncture performance. The application field is limited since the general single-layer casting cannot achieve single-sided adhesion. Single-layer and double-layer casting are not as extensive as three-layer casting in material selection. The formula cost is also high, so the structure of the three-layer co-extrusion is still ideal. In recent years, with the development of materials...

  Quality specification for stretch film What are the quality specifications of the stretch film? For the products to be packaged, the   stretch fil m  can play the role of moistureproof, dustproof, etc. They can be packaged together to avoid product clutter, so for the sake of safety, we also An in-depth understanding of the general usage standards for the product is required.   Stretch film is mainly used for packaging, which can achieve the effect of dustproof and moistureproof and protect the product. It has a variety of excellent properties because, during production, its material and production technology are all with a guarantee.   1. Excessively reducing the surface folds at both ends and the white pressed lines at both ends will lead to poor quality of the stretch film.   2. If the cutting is not flat, it cannot be shipped as a finished product for a long time, including when shipping, both ends should be flat, and the edge material should be cut f...

  With the wide application of   PE stretch film   in the logistics industry, PE stretch film is a popular packaging material nowadays. The stickiness of PE stretch film, if the stickiness of PE stretch film is good, the packaged products will be stronger and stronger, reducing damage caused by external factors. So what factors will affect the viscosity of the PE stretch film?   The factors that affect the viscosity of the PE stretch film are as follows: 1. Whether the self-adhesiveness is good;   2. How to obtain the viscosity of the PE stretch film itself;   3. The temperature of the cooling roll.   There are many materials for the production of PE stretch film, which mainly depend on the application field of the product. Therefore, if you want to control the viscosity of the PE stretch film, you can work hard on the material. Not all C4-LLDPE can be matched with PE stretch film. C6 and C8 materials are often used because of their ease of processing,...

  How to do if the stretch film tension is not uniform? The  stretch film  is dust-proof and moisture-proof, effectively protecting the goods while packaging the goods. It is an environmentally friendly packaging material. We will encounter uneven tension of the stretch film during use. Today, I will introduce how to solve the uneven tension of the stretch film.   Stretch film tension and equipment display tension have different meanings. Therefore, different equipment display tensions should be set for different types and thicknesses of stretch films. The surface tension of the stretched film depends on the free energy of the plastic film, and the surface energy of the stretched film depends on the film's molecular structure.   One: Non-polar polymer, surface free energy is negligible. The wet surface tension is low, the after-sales service of the Haier washing machine is generally about 30 dyne/cm. Theoretically, if the surface tension of the object is less th...

  How to identify the quality of PE stretch film? In recent years, the application of  PE stretch film  in product packaging has become more and more extensive, so the number of consumers buying is also increasing. PE stretch film is a new generation of environmentally friendly packaging materials used. There are more and more pe stretch film manufacturers, and the pe stretch film materials used by enterprises in the competition are different. They will inevitably encounter some quality problems. We can identify the quality of PE stretch film through the following aspects.   1. Look at the transparency and measure the tensile strength: First, pull it apart from the length direction of the pe stretched film, and then pull it apart from the horizontal direction. A stretched film with good stretchability has a strong impact force. The stretch rate of pe stretch film with good quality can reach 100%-300%.   The casting production method has developed from single-lay...

  Will the transverse stretch of the stretched film damage the film? Nowadays,  stretch film  has been widely used in our work. Stretch ratio is a very important process parameter. Whether it is longitudinal stretch ratio or transverse stretch ratio, it has a serious impact on BOPP performance. So what effect does the transverse stretch of the stretched film have on the film?   In the process of producing stretched film, in order to adjust the process conditions and change the film function in time, people will make the width of the two guide rails after the transverse stretching of the tenter and the width of the two guide rails before stretching (or the corresponding clamping mouth) The ratio of the width of the film is called the transverse stretch ratio of the film. The transverse stretching of the film is mainly carried out in the stretching zone. The transverse stretch ratio of the biaxially oriented polypropylene (BOPP) film is 7 to 9 times.   The transve...

  PE stretch film can be used as cling film? Now in our lives, we often see  PE stretch film  and cling film. Many people will wonder, can PE stretch wrap film be used as a cling film? Both are transparent films in appearance, and both can be used at the same time. Used to bandage items. As a result, many consumers have no in-depth knowledge of PE stretch film and cling film, which makes it difficult to distinguish. Today we will take a look together:   Cling film is a kind of stretch film, but because it does not need as high self-adhesive performance as stretch film, the amount of polyisobutylene used will be less. Polyisobutylene is mainly used to increase product flexibility and self-adhesiveness.   Cling film is a kind of plastic packaging products commonly used for fresh food. At present, the main cling films on the market are: one is polyethylene. This material is mainly used for food packaging, such as fruits, vegetables, etc., including those purchased ...

  How to control the physical mechanical properties of stretch film? With the development of the logistics industry, stretch films have also been widely used.  Stretch films  are mainly used to stabilize, cover and protect products. The physical and mechanical properties of stretch films have been mentioned before, so let’s take a look below. How can we control it? The editor of Zhiteng stretch film manufacturer will introduce to you as follows:   High transparency is conducive to the identification of goods; high longitudinal elongation is conducive to pre-stretching and saving material consumption; good puncture performance and transverse tear strength allow the stretched film to encounter sharp goods at high stretch magnification The corners or edges do not break; the high yield point makes the packaged goods more tight. The film produced by the casting method has high transparency, so it is not discussed here.   As the number of C atoms of the comonomer of t...

How to calculate the price of stretch film？ The function of  stretch film  is to package various products, such as paper, machinery, export packaging, etc. It mainly plays a role in preventing dust and moisture, and keeping the skin intact, and plays an important role in packaging. Zhiteng stretch film manufacturers can provide stretch films in various sizes and colors. Available in black, red, blue, white, etc.   Stretch film packaging saves more materials than shrink packaging, and does not require a shrink packaging machine to save energy; it has good anti-loosening, rain, dust, and anti-theft effects. Single-sided viscosity products can reduce dust, sand and membrane surface contamination during transportation and storage. Suitable for pallet transport packaging or cargo pallet packaging.   It can prevent moisture and dust, reduce labor, improve efficiency, thereby protecting products and reducing costs. It is especially suitable for pallet packaging and transpor...

  Details use of stretch wound film What are the usage details of  stretch wound film ? Stretch wound film can also be referred to as stretch film for short. It is a packaging material that is frequently used in the logistics industry now. If you want to use stretch wound film better, you must pay attention to the details of its use. So today I will collect some questions about this aspect and introduce it to you, I believe you can use it better.   Users also need to pay attention to the following details when using stretch film products: 1. When users use stretch wrap film products, they should first ensure that the cutting tools we use, the sawing machine is equipped with high-speed steel saw blades on the sawing machine.   2. Pay attention to carefully check the pressure resistance and tightness of various interfaces of various membrane products after using various connection methods to form a system. The test pressure value is generally a multiple of the system w...

  Zhiteng handy stretch film has high strength of tear resistance, is not easy to be broken and damaged, and has good viscosity, so that the film and the goods are tightly packed together to protect the goods, anticollision，moistureproof, dustproof and so on.

  Details use of stretch wound film What are the usage details of  stretch wound film ? Stretch wound film can also be referred to as stretch film for short. It is a packaging material that is frequently used in the logistics industry now. If you want to use stretch wound film better, you must pay attention to the details of its use. So today I will collect some questions about this aspect and introduce it to you, I believe you can use it better.   Users also need to pay attention to the following details when using stretch film products: 1. When users use stretch wrap film products, they should first ensure that the cutting tools we use, the sawing machine is equipped with high-speed steel saw blades on the sawing machine.   2. Pay attention to carefully check the pressure resistance and tightness of various interfaces of various membrane products after using various connection methods to form a system. The test pressure value is generally a multiple of the system w...

  Main raw materials and selection method of stretch film Stretch film  is actually a plastic film, a transparent heat-shrinkable plastic whose main component is polyethylene. It is mainly divided into three categories: linear low-density polyethylene (LLDPE), low-density polyethylene (LDPE), and high-density polyethylene (HDPE). Most high-performance stretch films contain LLDPE. For traditional LDPE, the current amount is limited. EVA has very high tensile properties. Ethyl acetate is usually used, but it is not as good as polypropylene, so it is rarely used. Different raw materials have different properties of stretched film, so special attention should be paid when selecting materials for stretched film. Stretch film is a plastic film that people often use. Its raw materials include metallocene polyethylene (mPE), LLDPE, LDPE, EVA, PVC. In addition, the raw materials of stretch film also include polypropylene copolymers. The performance is relatively strong, with tensile re...

  Why does PE stretch film have glue residue? There are many types of  PE stretch films  on the market, such as mobile phones and other electronic products, and food preservation. PE stretch film is a very important protective product in the industry. It can avoid the abrasion and pollution of the product during transportation, and it plays a very important role in the industry. However, we sometimes find that there will be residual glue after the PE stretch film is used. What is the reason?   1. To check whether the high temperature resistance data of the used PE stretch film meets the production request, the temperature resistance is usually 210 degrees-260 degrees.   2. Is the temperature data of the production line within the technical request scale? Is the temperature too high? Check if the temperature sensor is normal.   3. The product's own quality problems, whether it is heated and cured strictly according to the pressure-sensitive adhesive baking d...

  How to handle the surface of stretch wrapping film correctly? With the continuous emergence of various new materials, new equipment and new processes, the  stretch wrapping film  will develop towards the direction of diversification, specialization and multi-functional composite film.   The longest method for surface treatment of stretched film is corona treatment. The basic principle is: by applying high temperature between the metal electrode and the corona treatment roller (usually a high-temperature, ozone-resistant, and highly insulating silicone rubber roller). The high-frequency and high-voltage power supply generates electric discharge, which ionizes the air and forms a large amount of ozone. At the same time, high-energy electric sparks hit the surface of the film.   The magnitude of the wet tension on the surface of the corona treated stretched film is related to factors such as the voltage applied to the electrode, the distance between the electrode...

  PE stretch film made of what materials? Nowadays,   PE stretch film   is the most widely used in the logistics industry. It is a convenient and environmentally friendly packaging material. The use of PE stretch film is very common. It can also be used in food packaging, protection of products in transportation, storage, and processing. , Avoid damage during use. So what materials are made of PE stretch film?   1. PE stretch film is made by co-extrusion of polypropylene particles to form a sheet, and then stretched in two deflection directions. Because of the orientation of the stretched molecules, the transparency of polyethylene decreases with the addition of crystallinity. Under a certain degree of crystallinity, the transparency increases as the molecular weight increases. High-density polyethylene has a melting point scale of 132-135°C, while low-density polyethylene has a lower melting point (112°C) and a wide range.   2. PE stretch film is made of polyet...

  In the packaging industry, there is no shortage of stretch film products, and this year, there is a   black stretch film   in stretch film products. The total annual demand for black stretch film reaches about 60,000 tons, and the annual output of domestic stretch film is about 30,000 tons. The global demand for stretch film is increasing year by year, with an annual growth rate of about 6-7%.   Black stretch film products can greatly reduce the cost of use, packaging can also reduce labor intensity, improve packaging quality and packaging efficiency, and hope to become the main force in the packaging market in the future. Stretch film is strong, resistant to pulling, and self-adhesive. , Low temperature resistance and good shrinkage force. Generally, the stretch film is divided into single-sided adhesive and double-sided adhesive.   Even scattered small items can become a whole. The stretch film can tightly wrap the products with its own winding force and ret...

  What are the criteria for selecting stretch film? Stretch film  is very convenient to use, with low cost and high efficiency. It is very popular in the packaging industry. Now there are more and more stretch film manufacturers on the market. How to choose stretch film, what is its standard, and what is it? High-quality stretch film products? What standards does it need to meet? Today, Zhiteng stretch film manufacturers will share with you. First, look at the transparency and gloss. A high-quality stretched film has good transparency and good gloss. When observed under the sun, it does not contain too many impurities and is relatively clean; Second, express shrinkage capacity, high-quality stretch film, when it passes through the thermal stretch film packaging machine, its shrinking ability is fast but the quality is poor, it will not shrink well, or it will have to go through two to three times of thermal stretch film Only the machine can complete the shrinking process. Thir...

  The difference between stretch film and wound film Stretch film  is mainly used for product packaging. For some companies, using stretch film to package products can effectively reduce the cost of use, while reducing labor intensity of workers, improving packaging efficiency and packaging grades. So what is the difference between stretch film and stretch film? Today, Zhiteng stretch film manufacturer will introduce to you. Stretch film, also called stretch film and heat shrink film, was originally produced with PVC as base material, DOA as plasticizer and self-adhesive effect. Due to environmental protection issues, high cost (relatively high relative to PE, less unit packaging area), poor stretchability, etc., when the production of PE stretch film began in 1994-1995, it was gradually eliminated. The PE stretch film first uses EVA as the self-adhesive material, but its cost is high, and it has a pungent odor, and then it is developed to use PIB and VLDPE as the self-adhesiv...