Soft and velvet touch barrier laminate
The present disclosure describes soft and velvet touch barrier laminate with customized polymer alloying which is dry or wet blending of multiple polymers, additives and colorant and making a single compounded polymer mix with designated characteristics. The soft and velvet touch barrier laminate can be used to prepare articles having soft outer surface with a mat finish.
1. A soft and velvet touch barrier laminate comprising:
(a) a printable layer comprising a polypropylene elastomer;
(b) a core layer adjacent to the printable layer;
(c) a laminating layer adjacent to the core layer;
(d) a barrier layer between first and second bond layers, wherein the first bond layer is between the laminating layer and the barrier layer; and
(e) an inner polyethylene (PE) layer adjacent to the second bond layer which is in contact with the barrier layer;
wherein said polypropylene elastomer has Vicat softening temperature in the range of 60° C. to 90° C., wherein the printable layer further comprises high density polyethylene (HDPE); an anti-block additive; and a colorant.
2. The laminate as claimed in claim 1 , wherein the printable layer comprises polypropylene elastomer, high density polyethylene (HDPE), anti-block additive and the colorant in a blend ratio in the range of 26:70:2:2 to 60:25:5:10.
3. The laminate as claimed in claim 1 , wherein the anti-block additive is selected from the group consisting of ground silica, silicas, aluminosilicates, and metal aluminosilicates.
4. The laminate as claimed in claim 1 , wherein the colorant is selected from the group consisting of titanium dioxide (Ti 2 ), zincsulfide (ZnS), zinc oxide (ZnO), barium sulfate (BaSO 4 ), carbon black, and Calcium Carbonate (CaCO 3 ).
5. The laminate as claimed in claim 1 , wherein the printable layer has a thickness in the range of 20 to 50 microns.
6. The laminate as claimed in claim 1 , wherein the core layer comprises a blend of at least two polyethylene polymers and a colorant.
7. The laminate as claimed in claim 1 , wherein the core layer comprises a blend of at least two polyethylene polymers and a colorant with a blend ratio in the range of 90:10 to 95:5.
8. The laminate as claimed in claim 6 , wherein the at least two polyethylene polymers is a blend of high density polyethylene (HDPE) and metallocene linear low density polyethylene (mLLDPE) in the ratio of 3:2 to 1:1.1.
9. The laminate as claimed in claim 1 , wherein the core layer has a thickness in the range of 20 to 50 microns.
10. The laminate as claimed in claim 1 , wherein the laminating layer comprises a blend of at least two polymers selected from the group consisting of linear low density polyethylene (LLDPE), low density polyethylene (LDPE), metallocene linear low density polyethylene (mLLDPE), high density polyethylene (HDPE) and medium low density polyethylene (MDPE).
11. The laminate as claimed in claim 10 , wherein the at least two polymers of laminating layer are linear low density polyethylene (LLDPE), and high density polyethylene (HDPE) with a blend ratio in the range of 50:50 to 80:20.
12. The laminate as claimed in claim 1 , wherein the laminating layer has a thickness in the range of 20 to 50 microns.
13. The laminate as claimed in claim 1 , wherein the first and second bond layers are each independently selected from the group consisting of ethylene acrylic acid (EAA) and maleic anhydride grafter (MA grafter).
14. The laminate as claimed in claim 1 , wherein the barrier layer is selected from the group consisting of metal foil barrier film and non-metal multilayer barrier film.
15. The laminate as claimed in claim 14 , wherein the metal foil barrier layer has a thickness of 6 microns to 30 microns.
16. The laminate as claimed in claim 14 , wherein the non-metal multilayer barrier film is selected from the group consisting of ethylene vinyl alcohol (EVOH), polyethylene terephthalate polymer (PET), nylon 6, and amorphous nylon.
17. The laminate as claimed in claim 14 , wherein the non-metal multilayer barrier layer is at least a five layered film.
18. The laminate as claimed in claim 14 , wherein the non-metal multilayer barrier layer has a thickness of 60 microns to 150 microns.
19. The laminate as claimed in claim 1 , wherein the inner polyethylene layer comprises of at least two layers of polymers selected from the group consisting of linear low density polyethylene (LLDPE), low density polyethylene (LDPE), high density polyethylene (HDPE), and medium low density polyethylene (MDPE).
20. The laminate as claimed in claim 19 , wherein the inner polyethylene layer comprises of at least three layers of polymers, wherein medium low density polyethylene (HDPE) layer is flanked by linear low density polyethylene (LLDPE) layers on both sides.
21. The laminate as claimed in claim 1 , wherein the inner polyethylene layer has a thickness in the range of 50 to 100 microns.
22. The laminate as claimed in claim 1 , wherein the first and second bond layers each have a thickness in the range of 25 to 50 microns.
23. The laminate as claimed in claim 1 , wherein said laminate has a thickness in the range of 250 to 500 microns.
24. A laminate comprising:
a printable layer comprising of polypropylene elastomer with a Vicat softening temperature in the range of 60° C. to 90° C.; high density polyethylene (HDPE); an anti-block additive; and a colorant, and having a thickness of 20 to 50 microns;
a core layer comprising a blend of high density polyethylene (HDPE), metallocene linear low density polyethylene (mLLDPE), and colorant, and having a thickness of 20 to 50 microns;
a laminating layer comprising a blend of at least two polymers selected from the group of linear low density polyethylene (LLDPE), low density polyethylene (LDPE), and high density polyethylene (HDPE) having a thickness of 20 to 50 microns;
a bond layer having a thickness of 25 to 50 microns;
an aluminum foil layer having a thickness of 6 to 30 microns;
a bond layer having a thickness of 25 to 50 microns; and
an inner polyethylene layer comprising of at least two layers having a thickness of 50 to 100 microns.
25. A laminate as claimed in claim 1 comprising:
a printable layer comprising of polypropylene elastomer with a Vicat softening temperature in the range of 60° C. to 90° C.; high density polyethylene (HDPE); an anti-block additive; and a colorant, and having a thickness of 20 to 50 microns;
a core layer comprising a blend of high density polyethylene (HDPE), metallocene linear low density polyethylene (mLLDPE), and colorant, and having a thickness of 20 to 50 microns;
a laminating layer comprising a blend of at least two polymers selected from the group of linear low density polyethylene (LLDPE), low density polyethylene (LDPE) and high density polyethylene (HDPE) having a thickness of 20 to 50 microns;
a bond layer having a thickness of 25 to 50 microns;
at least a five layer film with a non-metal barrier layer having a thickness of 60 to 150 microns;
a bond layer having a thickness of 25 to 50 microns; and
an inner polyethylene layer having a thickness of 50 to 100 microns.
26. The laminate as claimed in claim 10 , wherein the at least two polymers of laminating layer are linear low density polyethylene (LLDPE), and high density polyethylene (HDPE) with a blend ratio in the range of 70:30.