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Low leaching bottle wash additive

A glassware, alkaline technology, applied in the direction of organic cleaning compositions, etc., can solve the problems of high waste rate, enhanced decomposition, and reduced gloss of labels

Inactive Publication Date: 2012-10-10
JOHNSONDIVERSEY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Leakage of metal from the adhesive ceramic label (ACL) can cause the label to have reduced gloss, fading, and other aesthetic degradation, which may result in the reusable Bottles generate high scrap rates
The enhanced decomposition that occurs with an attached ceramic label (ACL) may be unacceptable as an otherwise serviceable bottle may be discarded with a decomposed label

Method used

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  • Low leaching bottle wash additive
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Examples

Experimental program
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Effect test

Embodiment 1

[0026] The following tables and graphs present the results of the exudation studies performed in accordance with the present invention. Various doses of aluminum and / or zinc were mixed with various doses of ethylenediaminetetraacetic acid (EDTA) in an alkaline washing solution containing 3% hydroxide Sodium, pH>13. In each experiment, four glass vials, each with two affixed ceramic labels (ACL), were immersed in the washing solution at elevated temperature. for five hours.

[0027] Each set of measurements, or each phase of measurement, was carried out in parallel with a standard detergent additive, Product I, which is a high-load detergent concentrate containing 24% Ethylenediaminetetraacetic acid (EDTA) (w / v). The alkaline washing solution used to soak the bottle and the solution used to rinse the bottle after soaking were collected and analyzed for the content of heavy metals, especially the lead (Pb) dose and dose of cadmium (Cd). In each set of experiments, the parts...

Embodiment 2

[0053] In this example, the following events were evaluated: the effect of added zinc and aluminum ions on the gloss of glassware with an attached ceramic label (ACL), and the effect of added zinc ions and the effect of aluminum ions on the discoloration of said pasted ceramic labels (ACL).

[0054] Gloss fading tests were carried out with product I and by the addition of a small excess dose of metal ions (n=1.2). Two different sets of glass vials were tested with adhesive ceramic labels (ACL) with a zinc based pigment on said adhesive ceramic labels (ACL). Samples from each set of vials were soaked in one of two different compositions:

[0055] Solution A: 3% sodium hydroxide and 0.3% product I at 80°C.

[0056] Solution B: 3% sodium hydroxide; 0.3% product I; 67 ppm zinc; and 33.5 ppm aluminum at 80°C.

[0057] The addition of metal ions was achieved by adding 139.74 mg / L of zinc chloride and 299.64 mg / L of aluminum chloride hexahydrate. At this concentration of Product ...

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Abstract

A method of reducing leaching of metal from glassware contacted with a caustic wash, the glassware having an applied ceramic label, the method comprising contacting the glassware with a composition comprising EDTA and protective metal ions selected from zinc ions and aluminum ions in a concentration effective to reduce leaching of metal from the glassware.

Description

Background technique [0001] Washing of glass bottles for subsequent reuse typically involves soaking the bottles in an alkaline solution, such as a A solution containing sodium hydroxide (NaOH). However, such conditions can lead to disintegration of the glass and of the adhesive ceramic label (ACL) present on the bottle. Commonly used detergent ingredients that are added to enhance cleanliness may promote the breakdown of glass and attached ceramic labels (ACL). Decomposition of adhesive ceramic labels (ACL) containing metal-based pigments, such as zinc-based pigments, can lead to the release or leaching of metals into the washing solution, Lead-based pigments, cadmium-based pigments, aluminum-based pigments, or cymbal-based pigments. [0002] Leakage of metal from the adhesive ceramic label (ACL) can cause the label to have reduced gloss, fading, and other aesthetic degradation, which may result in the reusable Bottles generate a high rate of waste. The enhanced decompos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D3/30
CPCC11D11/0035C11D3/30
Inventor H・西森H・戈德伯乐S・格罗伯U・乔德哈瑞
Owner JOHNSONDIVERSEY INC
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