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Use of a leguminous starch in an adhesive labeling composition

A technology of bean starch and adhesive, applied in the directions of starch adhesive, adhesive, amylose/amylopectin adhesive, etc.

Inactive Publication Date: 2006-07-05
ROQUETTE FRERES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0059] According to the aforementioned results, there is currently no possibility to provide labeling adhesives, especially applicable to paper-based labels, that can meet all the requirements of a) to i) above.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] Control composition TI

[0107] A control labeling composition based on pregelatinized modified waxy corn starch DEXYLOSE(R) 231 and crosslinked wheat starch COLLYS(R) BR (hereinafter referred to as composition T1) was prepared.

[0108] 276 grams of DEXYLOSE® 231, 69 grams of COLLYS® BR and 6.9 grams of ammonium acetate were dispersed in 533 grams of non-distilled water and stirred at 150 rpm at 25°C.

[0109] While continuing to stir, the mixture was heated to 72°C and held at this temperature for 10 minutes. 112 g of urea were added and the mixture was stirred for a further 30 minutes. The resulting composition was cooled to 50°C and 3.1 g of preservative PREVENTOL(R) D2 sold by the company BAYER were added.

[0110] Results The composition T1 had a dry solids content of about 43.5% and an initial viscosity (BROOKFIELD viscosity - 20 rpm) of about 65000 mPa.s measured at 25°C. Its initial pH value is 6.9.

[0111] The viscosity stabilized at a value of about 6000...

Embodiment 2

[0175] Comparative composition T2

[0176] Except in the present invention, DEXYLOSE® I 231 starch is replaced by another pregelatinized waxy corn starch, the weight ratio between said waxy corn starch and cross-linked wheat starch COLLYS® BR is again 4 / 1 In addition, a comparative composition (hereinafter referred to as composition T2) was prepared according to the same method as described above for composition T1.

[0177] The composition T2 has:

[0178] The dry solid content is about 46.8%;

[0179] The viscosity after storage at 45°C for 1 day is about 25000mPa.s;

[0180] After storage at 45°C for 1 month, the viscosity is about 27000mPa.s.

[0181] Compositions according to the invention

[0182] The labeling compositions according to the present invention (hereinafter referred to as compositions 1B to 7B) were prepared according to the same method as that used for composition T2 above, with the following differences:

[0183] Composition 1B: using starch 1 describ...

Embodiment 3

[0199] Dry Adhesion Tests ("FIPAGO TESTS")

[0200] The dry adhesion of the compositions 1B to 7B and T2 and T3 (comparative) according to the invention described in Example 2 were evaluated according to the method described in Example 1 (“FIPAGO TESTS”).

[0201] T0

T5

Composition T2

30

35

Composition T3

25

60

Composition 1B

25

40

Composition 2B

33

45

Composition 3B

15

25

Composition 4B

35

50

Composition 5B

38

60

Composition 6B

25

45

Composition 7B

45

65

[0202] These results confirm that for the criteria studied here, both native (comparative composition 1B) and physically modified (comparative composition 2B) legume starches can be advantageously applied in place of cross-linked wheat starch.

[0203] These results also suggest the use of a mixture of at least two bean starches t...

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Abstract

The invention relates to the use of a native or modified leguminous starch for producing an adhesive labeling composition. Said leguminous starch has an amylose content ranging between 25 and 60 percent by weight (dry / dry) and can be embodied as pea starch, especially pea starch having an amylose content of at least 30 percent but less than 50 percent by weight. The adhesive composition can advantageously be used for labeling glass or plastic bottles and can contain another natural polysaccharide polymer or protein polymer in addition to the leguminous starch, for example another native or modified leguminous or non-leguminous starch, particularly a starch having an amylopectin content of at least 80 percent by weight (dry / dry). The use of a leguminous starch makes it possible to obtain labeling adhesives, optionally highly dry (> 40 %) substances, which have excellent characteristics regarding stability during storage, rheology, and water resistance.

Description

technical field [0001] The subject of the present invention is the application of bean starch in labeling adhesive composition. [0002] The invention particularly relates to the use of such a starch in a water-soluble glue, especially for labeling glass bottles. [0003] The present invention also relates to the mixed application of a bean starch and at least one other natural polymer, a polysaccharide or natural protein. Background technique [0004] The use of natural materials in the preparation of labeling adhesives has been widely documented and used industrially for decades. Especially water-soluble glues based on casein and / or starch materials for bonding paper labels to glass substrates. [0005] In general, labeling adhesives should meet the following requirements a) to i): [0006] a) has general rheological properties, suitable for unit operation to carry out the actual pasting process between labels and supports, especially suitable for progressively fast and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/00C09J103/02
CPCC09J103/02Y10T428/131Y10T428/13C09J103/00C09J103/12
Inventor 莱昂·曼蒂克雅克·特里皮耶
Owner ROQUETTE FRERES SA
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