PVC And Silicone Drip Molding Process

 

Drip Molding Process

The drip process has been widely used in the decoration of various logo nameplates, cards, fine crafts and high grade book covers. It is also known as micro-injection.It is dripping white or colorful drip jewelry on the surface of knitted cotton and various chemical fiber fabrics and textiles. Just like a PVC silicone like product, bags, backpacks, clothing and more forth, Most of the logos used on those are of this type.

Processing is more complex, we often say the silicone trademark, silicone drip label, etc. Belongs to this kind of drip, PVC drip machine can also be made lots of products. Like drip shoes, shoe insoles, shoe soles, sofa backrests, dining table mats, car interior decoration and other series of products.

PVC  And Silicone Drip Molding Process

PVC products are primarily plastic products making use of the drip moulding process. In this process, liquid material is dripped into a mould, heated, baked and cooled over a period of time. Finally it is poured into the mould. The raw material for silicone is a liquid and the material is contained in a syringe. The raw material is dripped onto the mould and vulcanised by heating. It has the feature that a product can be dripped in a variety of different colours according to requirements. This process therefore makes most crafts. Examples include multi-coloured silicone bracelets, silicone mobile phone covers with various colour patterns, and more.

 

Silicone And PVC

Many people know about PVC and silicone, but are not sure what they are. In fact, PVC and silicone are materials that have many applications in life. Everyone wants to use something made of PVC and silicone. In reality, few people really know the difference between PVC and silicone, so follow us to find out the difference.

PVC is a material called polyvinyl chloride. The main component is polyvinyl chloride with the addition of other components. Such as heat resistance, toughness and ductility. The top layer of the sheet is lacquer, the middle layer is polyvinylchloride. The bottom layer is a back-coated adhesive.

Silica gel is a highly active adsorbent material, amorphous, with the chemical formula mSiO2-nH2O. It does not react with any substance except strong bases and hydraulic fluoride, is insoluble in water and any solvent, non-toxic and tasteless, chemically stable.

Differences Between Silicone And PVC

PVC drip moulding and silicone are both commonly used in crafts nowadays. In fact, there is a big difference between the two, the main differences between silicone and PVC are as follows.

• PVC products are made from PVC and oil, plus a colour paste. The raw material cools down by heating and cooling, using a micro-injection drip process. On the other hand, silicone is simply made from silicone plus a colour paste and other chemical elements. That is pressed and mixed by a glue making machine. Then placed in a mould and cooled by an oil press.
• PVC products are relatively rough compared to silicone products, while silicone products have a smooth surface and are colored.
• silicone products are soft, tough and flexible, pvc soft rubber is relatively less hard, both soft and hard can be adjusted, but PVC is not tough.
• PVC material is available as a normal material and an environmentally friendly material, also known as ATBC-PVC. silicone allows for ROHS certification and is environmentally friendly.
• Silicone products are generally more transparent. PVC products burn black and have an unpleasant smell when burning.
• Silicone products are more heat and cold resistant than PVC products. Silicone products are microwavable, but PVC is not.

Are PVC And Silicone Products Harmful?

PVC drip moulding is a polymeric substance of vinyl. PVC materials are often in practical use with the addition of lubricants, auxiliary process agents, colors, impact agents and other additives. It has non-flammability, high strength, resistance to weathering and excellent geometric stability. It is generally shape by 100-200 high temperature, moulding into the designed form as required in its viscous flow state. Then curing and forming at room temperature. The finished PVC drip moulding, therefore, is generally harmless. It is important to note that the logo of PVC material is generally not past food grade. No one will generally eat it by mistake either.

PVC and silicone are both non-toxic, PVC is polyvinyl chloride. Both are relatively common plastic materials. In the process of production, plasticizers and antioxidants need to be adding, these auxiliary materials are toxic, so choose PVC products to choose the regular manufacturers factory. So that the added auxiliary materials in line with the standards, there is no problem. The silicone itself has good biological compatibility and is not irritating to the human body, nor is it toxic, nor does it cause allergies.

Compared to PVC, silicone is more durable.Silicone is more flexible than PVC and has a better heat and cold resistance than PVC. In terms of material, silicone is the better material. Silicone is an environmentally friendly material. PVC is not an environmentally friendly material.

 

PVC Silicone Drip Molding Process Machine

The PVC Silicone Drip Molding Process Machine is relies on a three-dimensional(3D) movement system to bring the PVC paste dispensing needle to the designated position in the drip mould. The amount of plastic dispensing in question is determined by the time taken to extrude the paste and the speed at which the needle moves.The drip moulding machine consists of two main parts: the control system and the machine structure. The drip moulding machines include 4-colour drip moulding machines, 6-colour drip moulding machines, 12-colour drip moulding machines and so on. There are available in both manual and automatic versions.

Automatic 12-color Drip Molding Machine Features.

First: Save labor cost and greatly improve production efficiency. One automatic drip moulding machine can replace 4-6 people to replace the manual operation of skilled workers.1 person can operate several machines at the same time, saving labour costs and shortening production cycles.

Second: Special software, easy to operate. Multiple needles and colors, accurate drip material. Needle 8-12 colors, multiple needles can dispense glue simultaneously.

Third: High precision, go round, three-dimensional fast and smooth. Coordinate system control, precision up to 0.01mm. Do out the product quality is very stable. Product qualification rate of 99.9% or more, can improve the work efficiency.

Finally: The drip molding machine can undertake repeated and precise positioning of the dispensing work. During normal production, the needle of the dispensing machine is not in contact with the mould. The height from the mould can reach an adjustable height. The dispensing speed of the dispensing machine is adjustable, the amount of glue output is adjustable. There is no need to replenish the glue and wipe the mould, the thickness is consistent without trimming the edges.

 

Manual Drip Moulding Machine Characteristics

Mainly for small production quantities and a variety of products. It is convenient for manual work and can precisely control the dispensing time. With appropriate pressure adjustment, you can dispense immediately. Manual dispensing machines, also known as semi-automatic dispensing machines. Can only be used manually by holding the dispensing head and dispensing on the desired product. Due to the lack of mechanical movement, the machine is much less efficient in its operation. The manual dispensing machine has two parts. Like the dispenser controller and the dispensing syringe. It is suitable for the dispensing of a wide range of irregular products.