초록

The present disclosure relates to a laminated article with an invisible seam. The laminated article, in accordance with the present disclosure, is a laminate tube or lamitube. The present disclosure also relates to a process for manufacturing of laminated articles with substantially invisible seam.

대표청구항 ▼

1. A laminated article with an invisible seam, comprising: a multilayer laminate comprised of an inner and outer layer wherein the inner layer of said laminate is of a material with lower melting point and higher melt flow index than the material in the outer layer of the laminate;said laminated art

1. A laminated article with an invisible seam, comprising: a multilayer laminate comprised of an inner and outer layer wherein the inner layer of said laminate is of a material with lower melting point and higher melt flow index than the material in the outer layer of the laminate;said laminated article is formed by fusing the inner layer of said multilayer laminate along longitudinal ends of the laminate by heating at a high pressure to form a butt joint, and the outer layer of the laminate are not used in fusing, wherein said laminated article is with a substantially invisible seam andwherein the outer layer of the multilayer laminate forms a continuous surface without any joint over the surface area of the laminated article. 2. The laminated article with an invisible seam as claimed in claim 1, wherein the inner layer of multilayer laminate has a melt flow index in the range of 3.0 g/10 min/2.16 kg to 7.0 g/10 min/2.16 kg. 3. The laminate article with an invisible seam as claimed in claim 1, wherein the outer layer of the multilayer laminate is polyethylene layer. 4. The laminate tube with an invisible seam as claimed in claim 1, wherein the inner layer of the multilayer laminate is polyethylene layer. 5. The laminated article with an invisible seam as claimed in claim 1 wherein said article is a tube. 6. The laminated article with an invisible seam as claimed claim 1, wherein said article is printed all over the surface area. 7. A process for preparation of a laminated tube with an invisible seam, said process comprising: providing a multilayer laminate with an inner layer of a material and an outer layer of material wherein the inner layer of material having a lower melting point and higher melt flow index than the outer layer of material of the laminate;joining longitudinal ends of a multilayer laminate by fusing the inner layer of the laminate under high pressure to obtain butt joint;allowing the outer layer of the multilayer laminate to contact each other without joining the said layers to obtain a continuous surface; andallowing the longitudinal ends of the sliced laminate to flow over each other such that the non-fused outer layers of the longitudinal ends form a continuous surface resulting in an invisible seam on a laminate tube to obtain a laminated tube with an invisible seam without any joint over the surface area of the laminated tube. 8. The process as claimed in claim 7 wherein said longitudinal ends of the multilayer laminate are at predetermined angles.