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Easy-care micro-foam film packaging paper material and preparation method thereof

A technology of micro-foaming and wrapping paper, applied in the field of materials, can solve the problems of affecting the service life of the bag, appearing bubbles in the lamination place, and difficulty in reducing costs, and achieves excellent oil barrier properties, increased lamination qualification rate, and good quality. Environmentally friendly effects

Pending Publication Date: 2019-03-19
NANJING JULONG SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main problems are as follows: 1. Because polyethylene is a non-polar material, when it is bonded to polar surfaces such as paper, surface treatment such as ionization must be done, the equipment is complicated, the process is numerous, and the pass rate is generally not high; 2. 1. Due to unstable quality, air bubbles may appear at the joint, which will affect the service life of the bag; 3. Under the pressure of rising raw material prices, it is difficult to reduce costs for PE films with a thickness of only a dozen or at most 30 μm
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Method used

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  • Easy-care micro-foam film packaging paper material and preparation method thereof
  • Easy-care micro-foam film packaging paper material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Step 1: Premix 5 parts of polyallylamine sodium hydrochloride, 1 part of nano-silica, and 3 parts of sodium alginate-polylactic acid block copolymer in a medium-speed mixer according to the parts by weight for 0.5-2 minutes, Finally, the mixture is added to the single-screw extruder through the hopper, and the amphiphilic composite masterbatch is obtained by extrusion and granulation;

[0033] Step 2, mix amphiphilic composite masterbatch with 65 parts of LDPE and 20 parts of LLDPE, 0.2 parts of ultrafine diatomaceous earth, 1.5 parts of sodium carbonate, 2 parts of stearic acid, other additives are 0.2 parts of photosensitizer 3808, antioxidant 1010 0.3 parts are added to the single-screw film extruder according to the parts by weight, and 0.5 parts of the physical foaming agent carbon dioxide are added to the extruder through the air inlet on the top of the barrel according to the parts by weight. , extruded and casted into a surface treatment-free foamed polyethylene...

Embodiment 2

[0037] Step 1: Premix 10 parts of polyallylamine calcium hydrochloride, 5 parts of nano-titanium dioxide, and 1 part of PVP in a medium-speed mixer for 0.5-2 minutes according to the parts by weight, and then add the mixture to the single-screw extrusion through the hopper In the machine, the amphiphilic composite masterbatch is obtained by extrusion and granulation;

[0038] Step 2: Mix amphiphilic composite masterbatch with 80 parts of LLDPE, 0.5 parts of superfine talcum powder, 0.3 parts of sodium bicarbonate, 1 part of boric acid, and other additives are 1 part of photosensitizer 3808 and 1 part of antioxidant 1010 according to weight The parts are added to the single-screw film extruder, and 0.2 parts of the physical foaming agent nitrogen is added to the extruder by metering the air inlet on the top of the barrel according to the parts by weight, and the extrusion flow is carried out at a temperature of 130-200 ° The surface treatment-free foamed polyethylene film is ex...

Embodiment 3

[0042] Step 1: Pre-mix 1 part of allylamine lithium hydrochloride, 3 parts of nano-copper oxide, and 2 parts of polyglutamic acid in a medium-speed mixer for 0.5-2 minutes according to the parts by weight, and then add the mixture to the unit through a hopper In the screw extruder, the amphiphilic composite masterbatch is obtained through extrusion and granulation;

[0043]Step 2, mix amphiphilic composite masterbatch with 70 parts of LDPE and 20 parts of HDPE, 1 part of ultrafine diatomaceous earth, 2 parts of ammonium bicarbonate, 3 parts of glycine, other additives are 0.4 parts of photosensitizer 3808, and 0.4 parts of antioxidant 1010 0.6 parts are added to the single-screw film extruder according to the parts by weight, and 1 part of the physical foaming agent butane is added to the extruder through the air inlet on the top of the barrel according to the parts by weight. , extruded and casted into a surface treatment-free foamed polyethylene film, and at the same time, t...

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Abstract

The invention relates to film packaging paper and a preparation method thereof, in particular to an easy-care micro-foam film packaging paper material and a preparation method thereof. The easy-care micro-foam film packaging paper material is made from, by weight, 80-90 parts of polyethylene, 1-10 parts of polyallyamine hydrochloride, 1-5 parts of nano oxides, 1-5 parts of an amphiphilic block copolymer, 0.5-5 parts of a foaming agent, 0.2-1 part of an anti-adhesion agent, 1-5 parts of a foaming aid, and 0.5-2 parts of other aids. The preparation method of the easy-care micro-foam film packaging paper material is also disclosed. The easy-care micro-foam film packaging paper material has the advantages of good melt forming tensile property, small foam cell diameter, high cell density, foamfilm thickness reaching 20 micrometers and below, light weight, high tensile strength, high tear resistance, and excellent heat resistance, and is applicable to the field of packaging having the requirement on the temperature of 80 DEG C and above; the easy-care micro-foam film packaging paper material is environmentally friendly and biodegradable, has excellent oil barrier property and has good adhesion with paper, and production efficiency is high as film surface post-treatment is omitted.

Description

technical field [0001] The invention relates to a treatment-free micro-foaming film wrapping paper material and a preparation method thereof, which belong to the field of material technology. Background technique [0002] In daily life, paper bags are becoming more and more popular because of their convenience and environmental protection; on the other hand, in order to pack waterproof, people usually stick a layer of plastic film on the inner surface of the paper bag, mainly polyethylene (PE) film. At present, the main problems are as follows: 1. Because polyethylene is a non-polar material, when it is bonded to polar surfaces such as paper, surface treatment such as ionization must be done, the equipment is complicated, the process is numerous, and the pass rate is generally not high; 2. 1. Due to unstable quality, air bubbles may appear at the joint, which will affect the service life of the bag; 3. Under the pressure of rising raw material prices, it is difficult to redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L39/00C08L5/04C08L87/00C08L77/04C08K13/04C08K7/26C08K5/09C08K5/134C08K3/22C08K3/34C08J5/18C08J3/22C08J9/12C08J9/08
CPCC08J3/226C08J5/18C08J9/0023C08J9/0061C08J9/008C08J9/08C08J9/122C08K5/1345C08K5/09C08K3/34C08J2477/04C08J2467/04C08J2487/00C08K2201/011C08K2003/2248C08K2003/2241C08K13/04C08K7/26C08J2423/08C08J2423/06C08J2439/00C08J2323/06C08J2323/08C08J2203/184C08J2203/06C08J2203/02
Inventor 王滨刘曙阳蒋顶军
Owner NANJING JULONG SCI&TECH CO LTD
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