Polyurethane adhesive for packing lamination film Lamination Adhesive for coated aluminum

It is double-component high performance adhesive, with strong adhesive, good transparency. The film has good performance.,
Polyurethane adhesive for packing lamination film
Lamination Adhesive for coated aluminum
HY501S/HY10S
Polyurethane adhesive for packing lamination is our main product. It has been used by many domestic color printing factories including lots of famous enterprises. There are serious of products with different specifications to meet different demands of customers. We could supply based on special requirements from customers.
Model
HY 501S HY10S
Category
Main agent Solidified agent
Appearance
No color or light yellow transparent thick liquid
Ratio (%)
75+/-2 75+/-2
Viscosity(mPa.S/25
o
C
4000~8000 2500~3500/20
o
C
NCO(%)
- 12.4~14
ratio
5 1
The product conforms to the requirement of the national standard for food and sanitation GB9683~1998

Product Feature and Usage Range
HY501S/HY10S is one of the Polyurethane adhesives for packing lamination. It is a bicomponent high performance adhesive, with strong adhesive, good transparency. The film has good performance., oil proof, shockproof, bending proof, low temperature proof and humidity proof, easy to use.

The product is applicable for all kinds of dry lamination machines with varied speeds, widely used in PET, BOPP, CPP, LDPE, HDPE, PT and aluminum foil, coated aluminum film, compound packing for all kinds of food and medicine.

Use Instruction:
Ratio: the ratio of main agent to solidified agent is 5:1 for manufacturing soft lamination material. The ratio could be up for hard lamination material.

Dilution and the adhesive contents after dilution
To adjust the viscosity of the adhesive, please use the class one industrial acetic ester as dilution, with its moisture content less than 0.03%, and ethyl alcohol less than 0.02%. The formula for usage of acetic ester is as follows:

Qty of acetic ester =( qty of main agent X main agent content(%) + qty of solidified agent X solidified agent content (%))/adhesive content(%) – (qty of main agent – qty of solidified agent)

The adhesive content is mostly between 20~30%. The user should decide on the adhesive percentage depending on the texture of the material which needs to be sealed, usage amount and the performance of the rubber roller.
Polyurethane adhesive for packing lamination film
Lamination Adhesive for coated aluminum
HY501S/HY10S

Dilution ratio for reference

Adhesive needed (%)
45
40
35
30
25
20
Main agent(kg)
5
5
5
5
5
5
Solidified agent(kg)
1
1
1
1
1
1
Acetic ether (kg)
3.44
4.63
6.14
8.17
11
15.25

Adhesive Spread
The adhesive shall be evenly coated on the surface. 2~3.5 g/m
2
is recommended for the dry backing, and 4g/m2 for aluminum coating

Pre-processing on material
The surface shall be free of dust, oil, clean and dry. Corona processing must be done on the surface of the film before use so that the tension on surface reaches 0.038N/m-0.042N/m (38dyn/cm-42dyn/cm)

Requirement for lamination
Working environment: dry, with relative humidity not higher than 80%
Drying temperature: Area 1 Area 2 Area 3 (50~60)
o
C (60~70)
o
C (70~80)
o
C
Compression roller temperature: (50~90)
o
C depending on the texture of film
Compression roller pressure: (0.35~0.4)Mpa , the lamination pressure shall be kept as high as possible but not destroying the film
Lamination speed: varied between machines

Curing condition
The laminated film cures with room temperature above 10 degree Celsius. It could be cured with heating. The curing time is 24~48 hours with curing temperature at 50 plus 5 or minus 5 degree Celsius. The curing timing and temperature shall be longer and higher for aluminum foil coating.

Shelve life for adhesive mixture
The adhesive mixture shall be used up within 8 hours. The user shall match the adhesive based on the workload to avoid too much leftover and waste. For the leftover adhesive mixture, it can not be used anymore in principle. With too much leftover, it could be thinned up with solvent and kept in cool and used as dilution to be mixed up with the new mixture the other day. If the mixture turns white, subtransparent or thickened obviously, then it could not be used any longer. After it is unpacked, it must be used up in short period. The solidified agent will easily go bad with humidity. It must be kept dry and kept sealed if not in use.

Transportation and storage
The product is flammable. It should be transported and stored as dangerous product.
It should be protected against fire, heat, explosion to sunshine, humidity and water. The package must be kept well in transportation. The products must be lightly moved.

The storage must be kept away from the heat source and fire. It should be stored in the room temperature between 10 to 30 degree Celsius and no sunshine. The storage place must be protected from fire, humidity, water. It needs to be dry, and well ventilated. The adhesive can not be mixed with water, liquor or other liquid with active hydrogen.

The shell life for the adhesive is 10 months and 4 months for the solidified agent. It could still be used if it has not gone bad after expiry.

Packing
Net weight for adhesive: 20 kg/barrel, Solidified agent: 4 kg/barrel