Particle material for producing beer and beverage crown cap polyolefin gasket and preparation method thereof

A crown cap and polyolefin technology, applied in the field of food packaging materials, can solve the problems of use restrictions, halogen pollution, etc., and achieve the effects of weight reduction, good environmental performance, and resource conservation

Inactive Publication Date: 2012-04-11
XIAN CHANGTAI PACKAGE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, PVC materials also have the problem of halogen

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0089] Example 1:

[0090] The pellets used for the production of beer and beverage crown cap polyolefin gaskets and the preparation method are formed by compounding and extruding raw materials in parts by weight:

[0091] The pellets are composed of the following parts by weight:

[0092] Low density polyethylene 58.1 parts

[0093] Block copolymer of styrene and butadiene monomer SBS796 39.4 parts

[0094] Antioxidant masterbatch 2.5 parts

[0095] Among them, the antioxidant masterbatch is a pellet formed by extruding the following mass fractions of components:

[0096] Phenolic antioxidant 1010 7.6%

[0097] Low density polyethylene 84.8%

[0098] Polyethylene wax 1.7%

[0099] Talc 5.9%;

[0100] Step 1: Disperse the above mixture in a cooling mixer to form a mixture, and the mixing time is 10 minutes;

[0101] Step 2: Add the mixture obtained in step 1 to the twin-screw extruder for plasticization, extrude and cut pellets through the die, and the extrusion temperature is 110°C; after tha...

Example Embodiment

[0102] Example 2:

[0103] The pellets used for the production of beer and beverage crown cap polyolefin gaskets and the preparation method are formed by compounding and extruding raw materials in parts by weight:

[0104] The pellets are composed of the following parts by weight:

[0105] Low density polyethylene 65.3 parts

[0106] Block copolymer of styrene and butadiene monomer SBS796 28.8 parts

[0107] Antioxidant masterbatch 5.5 parts

[0108] Coloring masterbatch 0.4 parts

[0109] Among them, the antioxidant masterbatch is a pellet formed by extruding the following mass fractions of components:

[0110] Phenolic antioxidant 1010 7.6%

[0111] Low density polyethylene 84.8%

[0112] Polyethylene wax 1.7%

[0113] Talc 5.9%;

[0114] The coloring masterbatch is composed of the following mass fraction components:

[0115] Rutile titanium dioxide 65%

[0116] Linear low density polyethylene 32%

[0117] Polyethylene wax 2%

[0118] Stearic acid 1%;

[0119] Step 1: Disperse the above mixture i...

Example Embodiment

[0121] Example 3:

[0122] The pellets used for the production of beer and beverage crown cap polyolefin gaskets and the preparation method are formed by compounding and extruding raw materials in parts by weight:

[0123] The pellets are composed of the following parts by weight:

[0124] Low density polyethylene 72.5 parts

[0125] Block copolymer of styrene and butadiene monomer SBS796 18.2 parts

[0126] Antioxidant masterbatch 8.5 parts

[0127] Coloring masterbatch 0.8 parts

[0128] Among them, the antioxidant masterbatch is a pellet formed by extruding the following mass fractions of components:

[0129] Phenolic antioxidant 1010 7.6%

[0130] Low density polyethylene 84.8%

[0131] Polyethylene wax 1.7%

[0132] Talc 5.9%;

[0133] The coloring masterbatch is composed of the following mass fraction components:

[0134] Rutile titanium dioxide 65%

[0135] Linear low density polyethylene 32%

[0136] Polyethylene wax 2%

[0137] Stearic acid 1%;

[0138] Step 1: Disperse the above mixture i...

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PUM

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Abstract

The invention relates to a particle material for producing a beer and beverage crown cap polyolefin gasket and a preparation method thereof. The material of the crown cap gasket for beer and beverage is mostly prepared from a polrvinyl chloride; and because the material of the crown cap gasket for beer and beverage contains a plasticizer, a stabilizer, vinyl chloride monomer residue in polrvinyl chloride and the like, the edible safety problem exists. The particle material is prepared by the following steps: mixing the following raw materials in parts by weight: 58.1-72.5 parts of low densitypolyethylene, 18.2-39.4 parts of thermoplastic elastomer, 2.5-8.5 parts of antioxidant master batch and 0-0.8 part of coloring master batch; and then extruding, granulating, water cooling, screening and drying; and finally cooling to form the particle material finished product. According to the invention, a safe material is adopted to replace an limited material, thus edible safety is ensured, and the particle material also has the advantage of good environmentally-friendly property and is beneficial to human body health, and food package amount is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of food packaging materials, and in particular relates to pellets for producing beer and beverage crown cap polyolefin gaskets and a preparation method thereof. Background technique [0002] At present, most of the materials for domestic beer and beverage crown gaskets are made of polyvinyl chloride (PVC). Because its ingredients contain plasticizers such as phthalates, stabilizers, and vinyl chloride monomer residues in PVC, it is a chemical substance restricted and concerned by EU food packaging materials. On the basis of Directive 2007 / 72 / EC, the European Union promulgated Directive 2007 / 19 / EC to evaluate and control chemicals in food packaging materials: it stipulates that phthalates can only be used in limited quantities as plasticizers Water-based food, not oily food. EU Directive 94 / 62 / EC: Substitute restricted or questionable materials with safe materials. Vinyl chloride monomer of PVC is listed ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L53/02C08K5/134C08K3/34C08K3/22C08J3/22
Inventor 赵开学
Owner XIAN CHANGTAI PACKAGE MATERIALS
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