Hot melt pressure sensitive adhesive for high speed automatic labeling and preparation method thereof

A hot-melt pressure-sensitive adhesive, automatic technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive types, etc., can solve the problems of difficult sticking, weak sticking, low initial adhesion, etc., and achieve low cost. , the effect of excellent die-cutting performance, high initial tack and sticking force

Inactive Publication Date: 2012-08-01
佛山南宝高盛高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hot-melt pressure-sensitive adhesives with relatively large initial adhesion for existing labels have relatively small holding power and are not firmly pasted.
However, the hot-melt pressure-sensitive adhesive with high stickiness is not easy to stick because of the small initial stickiness, and the phenomenon of warping and dropping of labels often occurs during use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Recipe:

[0036] Petroleum resin 40%

[0037] Styrene-isoprene-styrene 45%

[0038] Naphthenic oil 10%

[0039] Calcium Carbonate 2%

[0040] Polyethylene wax 2%

[0041] Antioxidant 1%;

[0042] The above-mentioned antioxidant is tert-butyl hydroquinone.

[0043] Preparation:

[0044] A. Mix and pre-disperse 1 / 3 of the naphthenic oil and calcium carbonate in a high-speed disperser;

[0045] B. Raise the temperature of the reactor to 120-130°C, put in antioxidants, polyethylene wax and the remaining naphthenic oil, stir slowly and raise the temperature to 145-150°C for 10-15 minutes;

[0046] C. Put styrene-isoprene-styrene into the reactor, control the temperature of the reactor at 150-155°C and keep stirring, put in the pre-dispersed naphthenic oil and calcium carbonate in step A after complete melting mixture;

[0047] D. Put petroleum resin into the reaction kettle, control the temperature at 140-150°C, then vacuumize and stir continuously for 40-50 m...

Embodiment 2

[0049] Recipe:

[0050] Petroleum resin 40%

[0051] Styrene-isoprene-styrene 40%

[0052] Naphthenic oil 10%

[0053] Calcium Carbonate 5%

[0054] Polyethylene wax 3%

[0055] Antioxidant 2%;

[0056] The above-mentioned antioxidant is a mixture of 1% gallic acid lactone and 1% tert-butyl hydroquinone.

[0057] Preparation:

[0058] A. Mix and pre-disperse 1 / 3 of the naphthenic oil and calcium carbonate in a high-speed disperser;

[0059] B. Raise the temperature of the reactor to 120-130°C, put in antioxidants, polyethylene wax and the remaining naphthenic oil, stir slowly and raise the temperature to 145-150°C for 10-15 minutes;

[0060] C. Put styrene-isoprene-styrene into the reactor, control the temperature of the reactor at 150-155°C and keep stirring, put in the pre-dispersed naphthenic oil and calcium carbonate in step A after complete melting mixture;

[0061] D. Put petroleum resin into the reaction kettle, control the temperature at 140-150°C, then ...

Embodiment 3

[0063] Recipe:

[0064] Petroleum resin 45%

[0065] Styrene-isoprene-styrene 35%

[0066] Naphthenic oil 15%

[0067] Calcium Carbonate 3%

[0068] Polyethylene wax 1%

[0069] Antioxidant 1%;

[0070] The above-mentioned antioxidant is gallolactone.

[0071] Preparation:

[0072] A. Mix and pre-disperse 1 / 3 of the naphthenic oil and calcium carbonate in a high-speed disperser;

[0073] B. Raise the temperature of the reactor to 120-130°C, put in antioxidants, polyethylene wax and the remaining naphthenic oil, stir slowly and raise the temperature to 145-150°C for 10-15 minutes;

[0074] C. Put styrene-isoprene-styrene into the reactor, control the temperature of the reactor at 150-155°C and keep stirring, put in the pre-dispersed naphthenic oil and calcium carbonate in step A after complete melting mixture;

[0075]D. Put petroleum resin into the reaction kettle, control the temperature at 140-150°C, then vacuumize and stir continuously for 40-50 minutes, and ...

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PUM

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Abstract

The invention discloses a hot melt pressure sensitive adhesive for high speed automatic labeling, which comprises, by weight percentage, 40-45% of petroleum resins, 35-45% of styrene-isoprene-styrene, 10-15% of naphthenic oil, 2-5% of calcium carbonate, 1-3% of polyethylene wax and 1-2% of antioxidants. A preparation method of the hot melt pressure sensitive adhesive for high speed automatic labeling is further disclosed. Compared with prior art, the hot melt pressure sensitive adhesive has the advantages of being environment-friendly, low in cost, high in initial bonding strength and enduring bonding strength, excellent in die cutting performance, and applicable to the high speed automatic labeling.

Description

[0001] technical field [0002] The invention relates to the technical field of hot-melt adhesives, in particular to a hot-melt pressure-sensitive adhesive for high-speed automatic labeling and a preparation method thereof. [0003] Background technique [0004] Hot-melt pressure-sensitive adhesive is mainly a new type of adhesive tape made by mixing synthetic rubber, resin and rubber oil into a dissolved state and then coating it on a substrate such as tissue paper, cloth or plastic film. It is mainly used for All kinds of sealing, box sealing, paper packaging, bottle labels, sealing aluminum foil, etc. [0005] Currently, many industries require labels. Most of the early labels used manual labeling. Due to the sharp rise in labor costs and the development of industrial automation, automated labeling developed rapidly and replaced traditional manual labeling. Now, automatic labeling has been developed from low speed to high speed, which requires that the hot melt pressur...

Claims

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Application Information

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IPC IPC(8): C09J157/02C09J153/02C09J11/06C09J11/04
Inventor 吴永升曹少波
Owner 佛山南宝高盛高新材料有限公司
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