EN1075A/B
Polyurethane Adhesive for Food Package
Instruction
EN1075A/B is a common two-component ethyl acetate soluble polyurethane adhesive designed for general structure. This product is suitable for the lamination among PE, PP, PET and PA. It has good performance of lamination.
Function
- Lamination film has the features of good initial adhesion, high transparency, high peeling strength, etc.
- It has a good performance of wetting to the film, and it’s especially good at coating process.
- It conforms to the Food Hygiene Law of the P.R.C.
- It conforms to the Adhesive regulations for food packaging of China National Adhesives Industry Association.
Physical Nature
Chart 1.The Physical Nature of EN1075A and EN1075B
Item | EN1075A | EN1075B |
Appearance | Light yellow transparent liquid | Colorless or light yellow transparent liquid |
Solid Content (%) | 75±2 | 75±2 |
Viscosity(mPa• s,25℃) | 2500±500 | 2000±1000 |
Solvent | EAC | EAC |
Mixing Ratio(Weight) | 20 | 4 |
Chart 2. The Changes of Solid Content and Viscosity during the Dilution
EN1075A(kg) | EN1075B (kg) | EAC(kg) | Solid Content (%) | Viscosity,seconds (25℃,Zahn Cup #3) |
20 | 4 | 48 | 25 | 12~13 |
20 | 4 | 36 | 30 | 13~14 |
20 | 4 | 27.4 | 35 | 14~15 |
20 | 4 | 21 | 40 | 16~17 |
Attention: The moisture of EAC, no more than 300ppm, is the most suitable solvent for dry lamination. In addition, MEK, TO, ACETONE etc., whose moisture is no more than 300ppm, also can be used as solvent. It will reduce The effective content of hardener when there is active hydrogen, such as alcohol, amine, in the solvent.
Use
Standard Mixing Ratio(weight):EN1075A:EN1075B=20:4
Dilution: Pour the EAC into the EN1075A, and mix absolutely. Add EN1075B before mix entirely.
Coating: The dry basis coating use can be 2.0-3.5g/m2 in order to math the requirement of use purpose, materials and composition. Lamination film, which need hot working or heavily process, should use more adhesive. On the contrary, the use should be less. In addition, the printing film should use more adhesive, too.
Concentration
Normal concentration is 25~40%. The most benefit use concentration of roller coating is around 35%.
Dry
For the volatilization of solvent on the film, please equip the dry machine with strong wind, high speed and applicable temperature. If the dry system consists of three parts, the temperature should be 50~60℃, 60~70℃ and 70~80℃ from the entrance to the exit in the order.
Lamination Temperature
50~80℃ is usual. The temperature should be controlled at 50~60℃ if the film is easy affect by the temperature.
Lamination Pressure
At the premise of protecting the film from damage, increase the pressure as high as possible.
Curing
Carry on the cutting process of lamination product at 50±5℃, 24 hours after curing. Extend curing time if there is a process of making bags. The curing needs over 7-10 days when curing in the barn over 20℃.
Package
EN1075A is 20kg/drum, EN1075B is 4kg/drum.
Storage
This product should be stored in a cool and dry place. The validity period of EN1075A is 12 months, and the EN1075B is 10 months.
Attention
1. Have a corona treatment to the film of Polyethyl acetateene and Polypropylene is necessary. The surface tension should be more than 52mN/m as large as possible, and the surface tension of PET should be no less than 50mN/m.
2. Environment humidity and moisture in the diluent make an obvious effect on lamination effect. Increase the use of EN1075B when in the High temperature and high humidity season.
3. Remaining adhesive: Do not use remaining adhesive in principle. If there are too much adhesive remained. Saved tightly away from heat and ignition sources after dilution. The remaining adhesive can be used as diluent, which should poured into the new prepared adhesive slowly and can not be used at aluminum foil lamination. Do not use the remaining adhesive if there is the emergence of opaque, translucent or thickening phenomenon.
4. It should be selected before use. The type and concentration of additive make an effect on the strength of adhesive.
5. Do not use this product with other adhesive.
6. Keep tightly in the shadow with the attention of fire and eliminating static electricity.
The operation conditions, composite technology, using method, performance data, we provided in this document, are made on the basis of the test results of Technology Department of Joya Chemical. Please test and confirm before production or contact with our technician since the difference of user’s materials, equipment, process conditions and package structure. It is user’s duty to test the product we provide. We do not take on any legal duty for these data of the document.
JOYA installs a Simple SL Solvent-free laminator from Nordmeccanica in our technical department. The laminator from Nordmeccanica is very popular in the worldwide. so we also install one for testing. and make sure our solvent free adhesive can work well on this types machine.
If customers could supply us samples of their films, we also would like to do the primal test, and then provide a total solution to customer.
Questions
1. What information is needed for adhesive recommendation?
Please let us know your basic requirement: your laminating structure and application, water-boiling or retorting treatment or not, the laminator speed.
More details will be much helpful like dry coating weight, the adhesive you are using now, curing room condition and so on.
2. What information is needed for quotation quickly?
Please let us know your destination port, normal quantity, and payment term you like, then we can mail the quotation to you in 12 hours since receiving your enquiry.
3. What about the payment term?
Normally we accept the TT and L/C.
Normally the cargo can be ready for delivery in 7~15 days after we get the deposit.
The FCL cargo can be shipped in 7 days since we received the TT payment or L/C.
The LCL cargo can be shipped in 14 days since we received the TT payment or L/C.
4. What about the packaging style in container?
We will pack the adhesive pails into pallet.
Normally one 20 container can load 10 pallets. Between two pallets, we will add the airbag to avoid the shaking.
Or we can pack them as customers request
5.How about the sample testing?
After confirming the adhesive code with customers, we can provide free sample ,but customers charg the shipping cost.
We supply the PU laminating adhesives/PU Resin for fleible packaging as following: solvent-based, solvent-free, water-based and alcohol-soluble laminating adhesives.
For adhesive catalogue, brochure, TDS and MSDS, Contact now!
