Shrink film printing is a key product to us. We pay attention to every detail, from raw material to after-sale service. You may find more info on the official website. The R&D team has made every effort to develop it. Its production is monitored and its quality is tested. You are expected to tell us about the needs, target markets and users, etc. All this will be a basis for us to make introduction this excellent product.

ZHONGSHAN LIN-YANG PLASTIC CO.LTD is an influential company in the industry of Decorative PVC Filmfurniture film. 's Transparent PVC Film series contains multiple sub-products. Lin-Yang Plastic: Offer you the best PVC film solution! . Paying close attention to the design of pvc transparent film is good for the LIN-YANG advertising. Lin-Yang Plastic: Offer you the best PVC film solution! Detailed operation procedure for Inflatable Toys PVC Film will be provided in the form of video. Going Camping? Make your adventure with the right camping tent made from finest grade materials.

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How to make sure pvc translucent film is installed properly to get the most out of it is important for our customers. This product is manufactured to provide industry-leading performance and beauty but should be installed by following the instruction manual to ensure it works properly. Failure to install it with all of these requirements may lead to product damage. Improper installation will also void the warranty of this product, so be sure to discuss and understand the install process with ZHONGSHAN LIN-YANG PLASTIC CO.LTD service team if you have problems.

LINYANG is a developed company that mainly produces Transparent PVC Film. The PVC Tarpaulin for Fish pond liner and Preformed pond liners series is one of the main products of Lin-Yang. LINYANG banner flex is designed with a trendy and aesthetically-appealing look. Seriously recommend Lin-Yang Plastic PVC film to you. I customized this product and installed it nearby a beach to hold a volleyball competition, which gave my brand a huge exposure from then. -Said one of our customers. In need of heavy duty PVC tarpaulins? Give us a call.

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At the leading position, LINYANG has been always focusing on the quality of service and PVC Tarpaulin for Fish pond liner and Preformed pond liners. According to the material, Lin-Yang's products are divided into several categories, and Translucent PVC Film is one of them. The fabrics of LINYANG embossed plastic film have been rigorously tested before used. They are tested using various methods such as combustion, staining, or shrinking. Lin-Yang Plastic: Get in touch with your requirements. The water treated by this product is safe to drink. The built-in filter and membrane will filter out all contaminants that are present in the water such as bacteria, algae, viruses, and heavy metals. Lin-Yang Plastic: Offer you the best PVC film solution!

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The Tube membrane method

in the extrusion method for manufacturing PVC film is to pass the melt plasticized by the extruder through an annular die to form a thin-walled round tube, and pulled up by the traction device (There are also horizontal or downward directions) The air injected from the mouth mold inflates the round tube and causes the tube to swell to form a membrane bubble, and at the same time cools it rapidly with air, the hot film Bubble is solidified at a certain distance above the die and the shape of the film bubble no longer changes (This is called condensation line) After that, the cured film is clamped between the two rollers, and the film bubbles are stretched and then rolled to obtain the product.

1. Using dry mixture to blow twist conjunctiva

The production of food grade hard PVC twist conjunctiva in China was originally imported from Italy, Japan, Austria and other countries, later, this kind of equipment was also developed in China and sold as hard pvc food packaging film units. This unit uses dry mixing as raw material, which is composed of feeding device, exhaust extruder, rotating die, cooling device, traction and coiling device, etc.

According to the literature, the production equipment of PVC twist conjunctiva is composed of two parts: high-speed heating/cooling unit and food packaging film blowing unit. When mixing materials, firstly measure according to the formula. Under the low-speed operation of the high-speed heating mixer, PVC resin, solid lubricant, liquid additive, MBS and acrylic acid processing aid are added in batches, and then turn to high-speed operation, when the temperature rises to 110 ~ Unload the materials into a cold mixer at 120 ℃ for mixing, and discharge them when the material temperature is as low as 40 ℃.

In Φ 65 when producing conjunctival torsion on a single screw extrusion and blowing unit, the temperature setting is as follows: barrel temperature (℃) 165/185/175/175 (Connection)/170 (Rotary)/175/180/190 (Mouth mold)

The temperature of the relevant parts decreased by 3 ~ 5 ° C, production 1 ~ 1. After 5 h, it will drop by 1 ~ 2℃ to prevent PVC decomposition caused by too high temperature. In the production process, attention should be paid to the control of temperature, screw speed, inflation ratio, bubble type, condensation line height, stretch ratio, herringbone plate opening angle, bubble stabilizer height, etc, the longitudinal and transverse mechanical strength of the film is close. Such as tensile strength (Vertical/horizontal)55: 52MPa, elongation (Vertical/horizontal) 150%: 130%, right angle tear strength (Vertical/horizontal)85: 77 (N/mm).

semi-hard and soft PVC films can also be directly blown with dry mixture.

2. Film blown by pellets

The pellets made by plasticizing the dry mixture have the characteristics of convenient feeding, low content of air and volatiles, uniform dispersion of additives and partial gelation, therefore, ordinary single screw extrusion can be used instead of exhaust extruder. In addition, some processing materials, such as vinyl chloride-Vinylidene Chloride Copolymer (PVDC) Stabilizers, plasticizers and other additives are often added to synthesis plants and made into pellets for sale.

The film blowing unit is composed of a single screw extruder, an annulus die, a cooling device, a traction device and a winding device. The die is generally a central feed type. This type of die is supported by a connecting sleeve from the bottom, and a part of the die can be rotated or swung mechanically to change the film thickness distribution.

The Technological points of blowing the film with soft PVC pellets are as follows: barrel temperature/℃ 150 ~ 160/160 ~ 170/170 ~ 180/160 ~ 170 (Head)/180 ~ 190 (Mouth mold) The inflation ratio is 1. 5 ~ 3 draw ratio 4- 6 position of cooling air ring/mm 30 ~ 200 condensation line height/mm 150 ~ 400

for PVDC materials, special film blowing units are used to produce food packaging films. The technological conditions are as follows:

barrel temperature/℃ 130 ~ 150/155 (Mouth mold) Quenching temperature/℃ 5 ~ 8 preheating temperature/℃ 28 ~ 40 blowing ratio, stretching ratio 3 ~ 5