Bacteriostatic high-barrier polypropylene masterbatch for hygienic product packaging materials and preparation method thereof

A technology for packaging materials and hygienic products, which is applied in the field of bacteriostatic high-barrier polypropylene masterbatch and its preparation for hygienic product packaging materials, and can solve the problem of weakened antibacterial properties, poor antibacterial properties, and poor compatibility between antibacterial agents and polyolefins and other problems, to achieve the effect of long-lasting antibacterial, excellent antibacterial and high barrier properties

Active Publication Date: 2019-08-16
JINJIANG XINBANG NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The definition of hygiene products is very broad, mainly including daily hygiene products and medical hygiene products, daily hygiene products such as female sanitary napkins, sanitary pads, wet wipes, baby diapers and toilet paper, etc. Adhesive tapes, medical patches, disposable surgical gowns, disposable medical sheets and other medical necessities, while the packaging bags for sanitary products mainly play an isolation role to prevent contamination of sanitary products. In the existing flexible packaging bags for sanitary products, poly Olefin packaging bags account for a large proportion, and polypropylene packaging bags are one of them. At present, most polypropylene flexible packaging materials for sanitary products have the following deficiencies: First: poor barrier properties, especially for sanitary products such as wet wipes , poor barrier properties can easily lead to bacterial growth and liquid volatilization; second, most polypropylene packaging materials generally do not have antibacterial properties, and cannot guarantee the safety and hygiene of sanitary products; third, for wet wipes sanitary products, there are currently antibacterial There are reports on packaging materials, but there are poor antibacterial properties, poor compatibility between antibacterial agents and polyolefins, and easy migration during use, resulting in weakened antibacterial properties

Method used

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  • Bacteriostatic high-barrier polypropylene masterbatch for hygienic product packaging materials and preparation method thereof
  • Bacteriostatic high-barrier polypropylene masterbatch for hygienic product packaging materials and preparation method thereof
  • Bacteriostatic high-barrier polypropylene masterbatch for hygienic product packaging materials and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Step 1, weighing each raw material according to the mass ratio, crushing the polypropylene powder and the cycloolefin copolymer until passing through a 500-mesh sieve for later use;

[0040] Step 2: Add the pulverized polypropylene powder, cycloolefin copolymer, modified starch antibacterial agent, plasticizer, nano-titanium dioxide, precipitated barium sulfate, kaolin, antioxidant, dispersant and lubricant into the high mixer in sequence , mixed evenly, and then sent to a constant temperature dehumidification drying box at 35°C for constant temperature dehumidification until the moisture content of the mixture reaches 5-10%;

[0041] Step 3: feed the mixture obtained in Step 2 into a three-screw extruder and granulate at 225° C. to obtain the antibacterial high-barrier polypropylene color masterbatch for hygienic product packaging materials.

[0042] Wherein the modified starch antibacterial agent is prepared according to the following method: cationic starch and water...

Embodiment 2

[0044] Step 1, weighing each raw material according to the mass ratio, crushing the polypropylene powder and the cycloolefin copolymer until passing through a 500-mesh sieve for later use;

[0045] Step 2: Add the pulverized polypropylene powder, cycloolefin copolymer, modified starch antibacterial agent, plasticizer, nano-titanium dioxide, precipitated barium sulfate, kaolin, antioxidant, dispersant and lubricant into the high mixer in sequence , mixed evenly, and then sent to a constant temperature dehumidification drying box at 40°C for constant temperature dehumidification until the moisture content of the mixture reaches 5-10%;

[0046] Step 3: feed the mixture obtained in Step 2 into a three-screw extruder and granulate at 230° C. to obtain the antibacterial high-barrier polypropylene color masterbatch for hygienic product packaging materials.

[0047] Wherein the modified starch antibacterial agent is prepared according to the following method: cationic starch and water...

Embodiment 3

[0049] Step 1, weighing each raw material according to the mass ratio, crushing the polypropylene powder and the cycloolefin copolymer until passing through a 500-mesh sieve for later use;

[0050] Step 2: Add the pulverized polypropylene powder, cycloolefin copolymer, modified starch antibacterial agent, plasticizer, nano-titanium dioxide, precipitated barium sulfate, kaolin, antioxidant, dispersant and lubricant into the high mixer in sequence , mixed evenly, and then sent to a constant temperature dehumidification drying box at 40°C for constant temperature dehumidification until the moisture content of the mixture reaches 5-10%;

[0051] Step 3: feed the mixture obtained in Step 2 into a three-screw extruder and granulate at 230° C. to obtain the antibacterial high-barrier polypropylene color masterbatch for hygienic product packaging materials.

[0052]Wherein the modified starch antibacterial agent is prepared according to the following method: cationic starch and water ...

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Abstract

The invention relates to a preparation method of a modified starch antibacterial agent, a bacteriostatic high-barrier polypropylene color master batch for a hygiene product packaging material and a preparation method of the polypropylene color master batch and belongs to the technical field of polypropylene color master batches. The bacteriostatic high-barrier polypropylene color master batch forthe hygiene product packaging material disclosed by the invention is prepared from the following components in percentage by mass: 41-46% of polypropylene powder, 5.5-10% of a cycloolefin copolymer, 5.2-9% of a modified starch antibacterial agent, 0.15-0.25% of a plasticizer, 1.78-3.15% of nanometer titania, 13.6-14.9% of precipitated barium sulfate, 13.8-14.5% of kaolin, 2.1-2.7% of an antioxidant, 2.2-2.9% of a dispersing agent and 6-6.2% of a lubricating agent. The color master batch has excellent barrier property and good antibacterial activity while serving as a flexible packaging material of hygiene products.

Description

technical field [0001] The invention belongs to the technical field of polypropylene color masterbatch, and in particular relates to a bacteriostatic high-barrier polypropylene color masterbatch used for sanitary product packaging materials and a preparation method thereof. Background technique [0002] Hygienic products are an indispensable commodity in people's life. With the improvement of living standards, people's health awareness has gradually increased. requirements. [0003] The definition of hygiene products is very broad, mainly including daily hygiene products and medical hygiene products, daily hygiene products such as female sanitary napkins, sanitary pads, wet wipes, baby diapers and toilet paper, etc. Adhesive tapes, medical patches, disposable surgical gowns, disposable medical sheets and other medical necessities, while the packaging bags for sanitary products mainly play an isolation role to prevent contamination of sanitary products. In the existing flexi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L45/00C08L3/08C08K13/02C08K3/22C08K3/30C08K3/34
CPCC08K2003/2241C08K2003/3045C08K2201/011C08L3/08C08L23/12C08L2205/035C08L2310/00C08L45/00C08L71/00C08L79/00C08K13/02C08K3/22C08K3/30C08K3/346
Inventor 丁清景
Owner JINJIANG XINBANG NEW MATERIAL TECH
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