Question 2: What is the material of the winding film? What's the ingredient? Please enlighten me! PE stretched film is made of PIB and VLDPE as self-adhesive materials, and now LLDPE is the main substrate, including C4, C6, C8 and metallocene PE(MPE).
Question 3: What is the raw material of the winding film? Rice, mung beans, melon seeds, star anise, rice 2 yuan, mung beans 1 yuan, melon seeds are very expensive, star anise. That's it.
Question 4: What kinds of rolled films are there? In terms of materials, it is mainly PE winding film.
From the point of view of usage, it is generally divided into three categories:
1. Hand envelope: it is packed by hand. Generally speaking, this kind of wrapping film does not require high quality, and the winding weight is about 4KG, which is convenient for operation;
2. Machine-used stretch-resistant wound film: This kind of wound film adopts mechanical packaging, and the film roll is packed by the movement of goods, which has certain requirements for the elongation of tensile strength, generally requiring the elongation to be around 300%; The bulk density of the product is generally15 kg; ;
3. Pre-stretched packaging film for machinery: This kind of packaging film is packed by machinery. When packaging, the packaging machine stretches the packaging film to a certain proportion and then winds it around the goods to be packaged. Due to the elasticity of the film, the goods are packed tightly. The product has high quality requirements and high tensile strength, elongation and puncture resistance.
Question 5: pe film: The difference between protective film, winding film and composite film Hello, Zhao Feng Science and Technology Protective Film Factory will serve you wholeheartedly!
There are many kinds of protective film materials, such as PE PET OPP, which are mainly used in manufacturing process and finished product delivery. Plastic wrap is made of PE material, which is a very thin film with high tensile strength and is used for packaging. Like this logistics freight express company, it is used for packaging. The composite film is composed of several materials, such as pe and PET, and its temperature resistance is stronger than that of ordinary PE. Landlords can communicate more and learn from each other ~ ~
Question 6: The difference between organic capsule and hand capsule. There are many advantages to using machine package film, which can prevent dust and moisture and prevent goods from collapsing. Generally, customers who use stretched films are divided into machine-coated films and hand-coated films. Now let's talk about the difference between machine capsule and hand capsule. Machine coating is that the object to be coated is placed in the middle of the turntable, and the turntable is driven to rotate by the start of the turntable motor, so that the coated film is naturally and evenly coated on the surface of the object.
At the same time, the lifting motor is started to drive the coating frame to move up and down, and the coating is carried out in the height direction of the object, thus realizing the coating packaging of the overall appearance of the object. Customers who use a lot generally recommend using machine coating, which can reduce the labor force of workers, and the machine coating is a little tighter than manual coating, and all actions can be completed by one person using machine coating.
The purpose of using hand-wound film is to firmly wrap scattered products into a whole, so as to improve handling efficiency and avoid scattering and loss. Whether it is used for collective packaging of products or pallet packaging of goods, it can achieve the function of moisture-proof and dust-proof.
The advantage of using hand-wrapped film is that it can be used anytime and anywhere without moving to a certain place for packaging. Small use area, suitable for customers with small dosage and limited production area. In terms of price, the machine film will be slightly more expensive than the hand film, and the process of machine film and hand film is different in the production process.
Question 7: What is the material of bubble film? Bubble film is a product which uses high-pressure polyethylene as the main raw material, and then adds auxiliary materials such as whitening agent and opening agent, and extrudes at a high temperature of about 230 degrees to form bubbles. It is a new plastic packaging material with light texture, good transparency, non-toxic and tasteless, which can play the role of moisture-proof, buffering and heat preservation for products.
Bubble film is also called air cushion film, air bead film, bubble cloth, bubble paper, bubble film and bubble.
Film, air cushion film. It is a pressure-resistant, moisture-proof and shock-proof chemical product, which is used for packaging and filling. It has the advantages of good shock absorption, impact resistance, good heat sealing, non-toxic, tasteless, moisture-proof, corrosion resistance and good transparency.
1960 by American mark? Chawanart invented it. I just want to design a new three-dimensional wallpaper. One day, when he was on the plane, he saw the clouds outside the window. He thinks clouds are used to protect the plane from landing safely. Inspired by this, he made a plastic bubble film. Bubble film soon became a popular packaging material because it has the characteristics of shock resistance, moisture resistance and wear resistance. Later, because many people like to break the bubbles on the bubble film, the bubble film was given the function of relieving psychological pressure. Today, Seagate, the patent owner of bubble film, has more than 6.5438+0.7 million employees in 52 countries and regions, and earns more than 4 billion dollars from bubble film every year. This article is from Baidu Encyclopedia, thanks to the author NotWhoUThink.
Question 8: What does the film rolling specification 2C*45CM mean? It means the width is 45 cm and the thickness is 0.02 mm.
Question 9: What raw materials are used to produce PE stretched film? 7042 9030 QLLF05