Preparation technology of BOPP heat-sealing film of packaging bag

Abstract

The invention relates to a preparation technology of a BOPP heat-sealing film of a packaging bag. The preparation technology mainly comprises the following steps of raw material treatment, extrusion operation, cooling corona, winding and slitting, and the like, wherein used BOPP heat-sealing film slitting equipment comprises an operation table, a roll feeding mechanism, a cutting mechanism and a winding mechanism; the roll feeding mechanism is installed at the left end of the operation table; the cutting mechanism is installed in the middle of the operation table; and the rolling mechanism is installed at the right end of the operation table. The preparation technology can solve the following problems existing during slitting of the BOPP heat-sealing film of the packaging bag: 1, when an existing BOPP heat-sealing film of the packaging bag is slit, the space between cutters needs to be adjusted, however, a traditional slitting mechanism is an integrated cutter, the cutters with different spaces need to be replaced, which is troublesome, and the slitting efficiency and quality of the BOPP heat-sealing film of the packaging bag are reduced; and 2, after the BOPP heat-sealing film of the packaging bag is slit, stable winding operation cannot be conducted on the BOPP heat-sealing film of the packaging bag, and the winding efficiency and quality of the BOPP heat-sealing film of the packaging bag are affected.

Description

technical field [0001] The invention relates to the technical field of BOPP heat-sealing film production, in particular to a preparation process of a BOPP heat-sealing film for packaging bags. Background technique [0002] BOPP heat-sealing film for packaging bags is mainly used for composite bag making or wrapping packaging. Divided into single-sided heat-sealing film and double-sided heat-sealing film. The BOPP heat-sealing film of the packaging bag is printed on the non-heat-sealing layer, and then combined with PE, BOPP and aluminum foil to make a bag, which is used for packaging food, tea, beverages, etc. After the BOPP heat-sealing film of the packaging bag is rolled and formed, it needs to be rolled The BOPP heat-sealing film cut into equal width is convenient for the subsequent use of the BOPP heat-sealing film in the packaging bag. [0003] However, the current BOPP heat-sealing film for packaging bags has the following problems when slitting. 1. When cutting the ...

AI Technical Summary

Problems solved by technology

[0003] However, the current BOPP heat-sealing film for packaging bags has the following problems when slitting. 1. When cutting the existing BOPP heat-sealing film for packaging bags, the distance between the knives needs to be adjusted, but the traditional slitting mechanism is integrated. The knives need to be replaced with different spacing knives, which is more troublesome and reduces the cutting efficiency and quality of the BOPP heat-sealing film of the packaging bag; 2. After the BOPP heat-sealing film of the packaging bag is cut, it cannot be wound stably , affecting the winding efficiency and quality of BOPP heat-sealing film for packaging bags

Images