Laminating Glass with PVB Film Processing

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Qingdao Port
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2 TONS m.t.
Supply Capability:
100000 Tons Per Year m.t./month
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Product Description: Laminating Glass  with PVB Film Processing

  

1. The glass cutting, cleaning and processing

 

To begin with, precisely cutting the glass as required is of importance. In case of the bubbles occurred the cutting error must be less than 2mm. Then the well cut glass edge should be grinded and cleaned to remove the oil stains and the other defects. At last, the softened water must be used in the last period to get rid of the unqualified products due to the weak adhesion. After the above process, the clean glass can be dried and placed in the room temperature for future use.         

 

2. Lamination

 

In the laminating room, the temperature should be kept in 15~25°C, the humidity 18%~40% , the environment clean and the equipment and employees tidy. The glass must lay flat and so should the film on it. Then lay the other piece of glass on the film. Drawing the film is forbidden during trimming the film. Besides, be assured that the film must be 2-5mm bigger than the glass and the trimming knife keep away from the glass lest the glass particles cause the bubbles on the edge of the laminating glass.                  

 

3. Pre-pressure exhaust

 

To get the well sealed edge, the air between the film and the glass needs to be pressed out of the laminated glass. Two methods are generally divided into.

 

a. Rolling exhaustion.

 

Firstly, Heat the well laminated glass up to 25~40°Cand put it into the first roll (the distance of each rolls are 1mm smaller than the thickness of well laminated glass with the pressure of 0.2~0.5MPa.), then put it into a thermo stated container to heat up to 60~80°C, and then get into the second roll (the distance of each rolls are 2mm smaller than the thickness of well laminated glass with the pressure of 0.3~0.5MPa).After getting out of the rolls, seal the four sides of the laminated glass with clear tape to get rid of the bubbles.

 

b. Thermo vacuum pre-pressing exhaustion

 

Put the laminated glass into a vacuum bag or vacuum rubber gasket, and then employ the cool pumping and heat pumping to press the air out. Tips: the decompression vacuum degree is beyond 650mmHg and the cool pumping temperature should be less than 25°Cfor 30~40 minutes; while in the period of heat pumping, the temperature should be 70~120°C for 30~60 minutes.  

 

4. Molding in high pressure

 

Place the Pre-pressure exhausted laminated glasses vertically on glass bracket leaving the distance of each glass more than 5mm. After the glasses are put into the thermo container, sealing the door and raising the temperature to 65°C-85°C; Then raise the temperature and pressure at the same time. The temperature raising rate is controlled in 5°Cper minute, and the pressure in 0.06MPa per minute. When the temperature and pressure up to 120~140°C and 1.0~1.5MPa respectively, keep them for 30~60 minutes. After that, keep the pressure and lower the temperature to 45°C, at the same time, loose the pressure to the atmosphere pressure. Finishing the high pressure molding process, we can have the final laminated glass for usage. 

 

Marks, packaging, transportation, storage and shelf life of Laminating Glass  with PVB Film Processing

 

1).Marks: it should include the product name, specifications, lot number, production date, expiration date, plant address and the brand name.

2).The package: the pvb film is insulated with PE film, cased into an aluminum foil bag, then vacuum sealed, and lastly into wood box or card drum. There should be quality certificate, packing list in the package. The marks of moisture proof, shock proof and sunlight proof should be labeled.

3).Transportation:there should be no direct sunlight, drench, and violent shaking during the transportation.

4).Storage: the product should be stocked in clean warehouse and normal temperature. It is forbidden to leave it under direct sunlight. As for the broken or opened package, they should be stocked under temperature of 20°C±5°C and in relative humidity of 20%-40%.

5).Shelf life: under normal atmospheric temperature, if well-packaged, the shelf life can be 2 years.

 

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Q:What's the thickness of plastic film 5C?
The thickness of the film is 0.5 mm, the plastic film 5C model bubble film is based on high pressure polyethylene as the main raw material, and then add brighteners, openings and other accessories, by 230 degrees or so high temperature extrusion Blister Blister products.
Q:How to deal with plastic film greenhouse joints?
Mud adhesion method. Plastic film in the process of using, such as scraping, wrinkle and other small damage, can cut a piece of plastic, glue water paste can be damaged in mud.
Q:The material, characteristics and uses of various plastic films
HDPE-LDPE-LLDPE films produced by this type of product; used for food packaging, film preservation and the like.
Q:FFS plastic film bags are injection type?
FFS plastic film bags are not injection molding, blow molding. The continuous production of "forming filling sealing (Form Fill-Seal, referred to as FFS)" bag blown film products, is a domestic heavy packaging film technology developed in recent years, mainly used for automatic packaging line of large polyethylene, polypropylene and other synthetic resin products.
Q:Why do you put plastic film on the paved road?
Plastic film does not have special requirements, as long as it can be covered with water to prevent evaporation. In the cold season construction to cover the mats and other things to keep the temperature.
Q:What kind of material is plastic film in greenhouse?
Plastic film material in greenhouse:Common filmPolyethylene or polyvinyl chloride as raw material, the film thickness of 0.1 mm, colorless transparent. The service life is about half a year.
Q:What kind of film is covered with a protective film on the tile surface?
The advantages of PE protective film is the largest protected products in the production and processing, transportation, pollution, no storage and use in the process of corrosion, scratch, surface protection of original smooth glossy, so as to improve the product quality and market competitiveness.
Q:What kind of equipment will be used for plastic film production?
First is the 30 type and 40 type blowing machine each, and the electric spark impact machine two. 6 color gravure press about 200 thousand, bag making machine.
Q:How to choose the plastic film for the salt packing bag?
However, since it is a design competition, is it possible for you to design an internal and external package for the sale of edible salt? For example, are now promoting daily limit intake of salt, not excessive.
Q:When will the plastic film be opened when the vegetables are sprouting?
One is to take mulch after sowing; two is the plant after the emergence of the seedlings at the top of the window film, let out seedling growth;
PROTECT, is the professional manufacture Enterprise with the largest investment scope, the most comprehensive product Specifications, strong production capacity and the highest sales volume, mainly produce special materials PVB and EVA film for bullet-proof glass, windscreen of the automotive, architectural safety glass as well as solar cell panel.

1. Manufacturer Overview

Location Guangzhou, China
Year Established 2002
Annual Output Value Above US$ 20 Million
Main Markets North America; South America; Eastern Europe; Southeast Asia; Africa; Oceania; Mid East; Eastern Asia; Western Europe; Southern Europ; South Asia
Company Certifications ISO9001:2000

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Guangzhou Port
Export Percentage 51% - 60%
No.of Employees in Trade Department 6-10 People
Language Spoken: English; Chinese;
b)Factory Information  
Factory Size: Above 30,000 square meters
No. of Production Lines Above 10
Contract Manufacturing Design Service Offered; Buyer Label Offered
Product Price Range High; Average
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