Environment-friendly type aqueous heat sealing glue for medicament blister package and use thereof

A technology of blister packaging and heat sealing glue, which is applied in the directions of packaging, wrapping paper, transportation and packaging, etc., can solve the problems of physical health hazards of production workers, rising production costs of heat sealing glue, restrictions on production and use prospects, etc., to avoid problems such as The effect of fluctuating costs, high production efficiency and high heat seal strength

Active Publication Date: 2009-04-15
SHANGHAI WEIKAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large amount of organic solvents used in the production and use of VC-type heat-sealing adhesives, a series of environmental protection problems have been brought about, such as environmental pollution and health hazards to production workers. restricted
In addition, the price of organic solvents has soared in recent years, resulting in a sharp increase in the production cost of this type of heat-sealing adhesive, further limiting its application range

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An environment-friendly water-based heat-sealing adhesive for pharmaceutical blister packaging, the water-based heat-sealing adhesive is made of the following components and contents (parts by weight):

[0030] components

parts by weight

Water-based resin Water-based acrylic resin

30

Rheology additive associative polyurethane emulsion

5

Co-solvent ethanol

20

Deionized water

43.7

pH regulator triethanolamine

0.3

[0031] The weight-average molecular weight Mw of the water-based acrylic resin is 200,000, and the glass transition temperature Tg is 40°C;

[0032] The above-mentioned raw materials can be synthesized, dispersed, and blended to make an environment-friendly water-based heat-sealing adhesive for pharmaceutical blister packaging.

[0033] Apply the obtained water-based heat-sealing adhesive directly on the surface of the aluminum foil for blister packaging, and dry it continuously at 90°C...

Embodiment 2

[0035] An environment-friendly water-based heat-sealing adhesive for pharmaceutical blister packaging, the water-based heat-sealing adhesive is made of the following components and contents (parts by weight):

[0036] components

parts by weight

Waterborne Resin Waterborne Polyurethane Resin

30

Defoamer Modified Polysiloxane

2

Co-solvent ethanol

Isopropanol

10

10

Deionized water

48

[0037] The weight-average molecular weight Mw of the waterborne polyurethane resin is 100,000, and the softening point is 100°C;

[0038] The above-mentioned raw materials can be synthesized, dispersed, and blended to make an environment-friendly water-based heat-sealing adhesive for pharmaceutical blister packaging.

[0039] Apply the obtained water-based heat-sealing adhesive directly on the surface of the aluminum foil for blister packaging, and dry it continuously at 120°C for 10 seconds, then solidify to form a film, and b...

Embodiment 3

[0041] An environment-friendly water-based heat-sealing adhesive for pharmaceutical blister packaging, the water-based heat-sealing adhesive is made of the following components and contents (parts by weight):

[0042] components

parts by weight

Waterborne Resin Waterborne Polyurethane Resin

Waterborne Acrylic Resin

25

5

Defoamer Modified Polysiloxane

7

Co-solvent propylene glycol monomethyl ether

20

water-based yellow pigment

2

Deionized water

41

[0043] The weight-average molecular weight Mw of water-based resin is 50,000 (converted by weight percentage), the softening point of water-based polyurethane resin is 250 DEG C, and water-based acrylic resin is styrene-acrylic modified acrylic resin, and its glass transition temperature Tg is 110 DEG C;

[0044] The above-mentioned raw materials can be synthesized, dispersed, and blended to make an environmentally friendly water-based heat-sealing ad...

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Abstract

The invention relates to an environment-friendly waterborne hot-seal adhesive for drug bubble cap packages and application thereof. The water-borne heat-seal adhesive is produced with the following substances in the following content proportions (weight portions): waterborne resin: 10-60; assistant: 0-10; auxiliary solvent: 0-30; waterborne pigment: 0-10; deionized water: 30-80; and pH conditioner: 0-5. Compared with the prior art, the invention has the following advantages: the adhesive is environment-friendly and basically free of organic solvents, and the content of volatile organic compounds (VOCs) is extremely low, and the cost advantage is obvious; all indexes including heat-seal strength (can reach as high as 13N/15mm), after-tack resistance, content of easily oxidized substances and the like comply with drug packing material standards (YBB00132002) of the State Drug Administration, so the waterborne heat-seal adhesive can completely replace the existing solvent-based VC hot-seal adhesives; production of the heat-seal adhesive has simple process and high production efficiency.

Description

technical field [0001] The invention relates to a water-based heat-sealing glue for packaging, in particular to an environment-friendly water-based heat-sealing glue for medicine blister packaging and its application. Background technique [0002] Blister packaging is one of the main forms of pharmaceutical packaging, usually called PTP packaging (Press Through Packaging), which refers to the blister packaging with aluminum foil (PTP packaging) under a certain temperature and pressure Aluminum foil) and polyvinyl chloride (medicinal PVC hard sheet) and other foam-forming materials are instantly heat-sealed and compounded for special packaging materials. In addition to PVC hard sheets, the foam-forming materials for blister packaging also include polyvinylidene chloride (PVDC), polyester (PET), polypropylene (PP), etc. [0003] At present, the commonly used heat-sealing adhesives for PTP packaging are mostly solvent-based vinyl resin systems, commonly known as VC-type heat-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/00C09J175/04C09J127/06C09J167/00C08J5/12C09J5/06B65D65/38
Inventor 陈智谢允斌
Owner SHANGHAI WEIKAI CHEM
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