JPS59145258A - Scratch coating composition for bottle - Google Patents

Abstract

PURPOSE:To provide a scratch coating compsn, which has a good hiding effect and excellent coating workability and heat resistance and can be completley peeled off during the washing of a bottle, containing liquid paraffin or carnauba wax and at least one member selected from among emulsifiers, pastes, film- forming agents and solvents. CONSTITUTION:A coating compsn. is obtd. by blending liquid paraffin and/or carnauba wax (A) with at least one member (B) selected from among emulsifiers, postes, film-forming agents and solvents. Examples of the emulsifiers are sorbitan fatty acid ester, higher alcohol fatty acid ester, sucrose fatty acid ester and soybean phospholipid. Examples of the pastes are polysodium acrylate, propylene glycol alginate and cellulose calcium glycolate. Examples of the film- forming agents are morpholine fatty acid salt, oxyethylene higher aliphatic alcohol and vinyl acetate resin. Preferred solvents include glycerol and ethanol which are accepted as food additive.

Description

[Detailed description of the invention] The present invention relates to a coating composition for abrasions on bottles.

Conventionally, glass bottles have been used as containers for drinks, fruit juices, etc., and these bottles are collected after use and used again after being washed.

However, when bottles are collected and used repeatedly, scratches occur on the outer surface of the bottles, especially on the shoulders, during bottling and distribution processes, which impairs the appearance and reduces the product value. come.

Therefore, when the collected bottles are to be reused, it is necessary to cover up any scratches on the surface of the bottles by appropriate means.

Various proposals have been made so far as liniments for use in concealing scratches on bottles.

However, although conventional coating agents have an excellent effect of hiding scratches, they have disadvantages such as poor drying properties due to their hygroscopic properties, stickiness, and the ability to attract dust, and they do not adhere firmly to bottles. As a result, there were problems such as not completely peeling off the collected bottles even after going through the bottle washing process. Furthermore, some of the coating agents that have been proposed are expensive and therefore impractical, while others are undesirable from a sanitary and safety standpoint.

As is clear from the above points, as a coating composition for scratches on bottles, it is necessary to: 1) have a good hiding effect on the scratched area; 2) have good emulsifying properties and excellent application workability; and 6) drying properties. It must meet the following requirements: It must not be sticky; ■ It must have excellent water resistance. ■ It must completely peel off when washing bottles. It must not be harmful in terms of food hygiene. ■ It must be inexpensive and stably available. It is. Therefore, the present inventors conducted repeated studies to develop a coating composition that satisfies these requirements.
The present invention has been achieved.

That is, the present invention provides a solution to the abrasion of bottles containing (A) liquid paraffin and/or carnauba wax, and (3) at least one substance selected from emulsifiers, glues, coating agents, and solvents. It is a coating composition for

The coating composition for abrasions on bottles of the present invention is usually used as an aqueous dispersion, but the components excluding water are component (A), liquid paraffin, It is a base for covering up scratches on the skin. Liquid paraffin and carnauba wax may be used alone or in combination. Liquid paraffin is a substance that is allowed as a food additive, and = 1. Carnauba wax has good drying properties.
It has the characteristic of not being sticky.

Next, component (B) is at least one substance selected from emulsifiers, pastes, coating agents, and solvents. Here, the emulsifier acts to strengthen the ability of the component (A) to diffuse onto the surface of the bottle and penetrate into scratched areas, and also to improve the emulsion stability when the coating composition of the present invention is mixed with water. Used for the purpose of improving. The emulsifier is not particularly limited as long as it has a normal emulsifying effect, such as sorbitan fatty acid esters and higher alcohol fatty acid esters.

Examples include glycerin fatty acid ester, sucrose fatty acid ester, propylene glycol fatty acid ester, soybean phospholipid, and mixtures of two or more of these. Here, in Nrubitan fatty acid ester, the fatty acid is Cl0-C2
The one in □ is lauric acid.

Palmitic acid, stearic acid, oleic acid, linoleic acid, lylunic acid, etc. are commonly used.

Among these, preferred are those easily soluble in water, such as sorbitan monolaurate, sorbitan monooleate, and sorbitan trioleate. Examples of higher alcohol fatty acid esters include those in which the alcohol is C6 to C2o, such as decyl alcohol, lauryl alcohol, myristyl alcohol, etc., and the fatty acid is Clo=C21, such as lauric acid.

Palmitic acid, stearic acid, oleic acid, linoleic acid, etc. are used. Furthermore, as the glycerin fatty acid ester, those having a fatty acid in the range of C17 to C21 are used, and usually lauric acid is used.

Palmitic acid, stearic acid, oleic acid, linoleic acid, lylunic acid and the like are preferably used, with monoesters being preferred. As sucrose fatty acid ester, a wide variety of fatty acids can be used, and among saturated fatty acids, CIO
"Cl8 range, usually lauric acid, myristic acid, palmitic acid.

Stearic acid is used, and unsaturated fatty acids such as C17
~C21, and usually oleic acid, linoleic acid, lylunic acid, etc. are mainly used. These /yosaccharide fatty acid esters are easily soluble in water and alcohol and have good emulsifying properties, so they are suitable, but when they are more than diesters, they tend to have poor dispersibility. As prolelene glycol fatty acid esters, those containing fatty acids of CIO to C21, such as lauric acid, palmitic acid, stearic acid, oleic acid, linoleic acid, and lilunic acid, and coconut oil, which is a composite composition, are also used. It will be done. Preferred examples include propylene glycol monolaurate, propylene glycol monostearate, and propylene gelicol monococoate. Soybean phospholipids are phospholipids found in soybeans. All of these emulsifiers, except for higher alcohol fatty acid esters, are approved as food additives.

The first coating composition improves workability by forming a film and enveloping the component (A) when the coating composition is applied to bottles.
It is used to improve the feel of the hands and water resistance.

The glue used is sodium polyacrylate and propylene glycol alginate.

Calcium cellulose glycolate, sodium cellulose glycolate, sodium starch glycolate.

Sodium starch phosphate, methylcellulose, sodium alginate, sodium caseinate.

Examples include casein and mixtures of two or more thereof, and among these, sodium polyacrylate is most preferred. All of these glues are approved as food additives.

Further, when the coating composition is applied to bottles, the coating agent forms a film and envelops the component (A), thereby achieving almost the same effect as the glue. Filming agents include morpholine fatty acid salts, fatty acid ammonium salts, and oxy/ethylene higher fatty acid alcohols.

Examples include sodium oleate, vinyl acetate resin, and mixtures of two or more thereof, and among these, morpholine fatty acid salts are preferred.

All of these coating agents, except for fatty acid ammonium salts, are recognized as food additives.

Solvents are used for purposes such as improving emulsion stability and improving workability, and include glycerin and propylene glycol, which are approved as food additives.

Ethanol and mixtures thereof are preferably used.

As mentioned above, the coating composition containing the j-period (A) and (B) components is usually added to water and used as an aqueous dispersion.

When making an aqueous dispersion, the concentration of each component is (A) components 1 to 3.
0%, preferably 3 to 20%, and for component (B), the emulsifier is 10% or less, preferably 0.05 to 3%,
The adhesive should be used in an amount of 5% or less, preferably 0001 to 2%, a coating agent 10% or less, preferably 001 to 5%, and a solvent 10% or less, preferably 05 to 5%. .

To apply the coating composition for scratches of the present invention to bottles,
Various methods can be applied, such as a method using a spray device and a method of applying using cloth, felt, sponge, etc.

The coating composition for scratches of the present invention has good dispersibility by appropriately combining components (A) and (B), has excellent workability, and has excellent water resistance and dryness after application. The properties are also good. In particular, when a product containing carnauba wax is used as component (A), it has excellent drying properties and is not sticky.

Bottles whose scratches are concealed using the coating composition for scratches of the present invention show no change in the concealing effect when stored at room temperature for a long period of time, and when the bottles are stored in a refrigerator, water-cooled showcase, etc. However, the concealing effect does not deteriorate, and the labels attached to the bottles do not become distorted. On the other hand, when bottles with scratches concealed are collected and reused after use, the coating composition for scratches of the present invention can be completely washed away in the bottle washing process. In addition, all the components used in the coating composition for abrasions of the present invention are safe, inexpensive, and stably available.

Next, the present invention will be explained in detail using examples.

Example 1 20% liquid paraffin (trade name Niramor Oil, manufactured by Koritsu Kagaku) and sorbitan fatty acid ester (trade name:
TWEEN 80 (manufactured by Kao Atlas)) was mixed with water to a concentration of 3%, and then mixed with Homomixer SL type (manufactured by Tokushu Kika Kogyo).
2 tons of a coating composition for abrasions was prepared by stirring at 700 rpm for 5 minutes to uniformly disperse the coating composition.

Approximately 3 minutes after preparing the above coating composition, the coating composition was soaked in absorbent cotton and applied to the unevenly rubbed portion of a beer bottle. This coating composition had good dispersibility, dust, and workability.

Furthermore, we evaluated the dryness by touch, the effect of hiding scratches by visual observation, the water resistance by immersion in water, and the appearance, feel, and safety of the bottles after application, and made a comprehensive judgment of quality. As a result, the overall evaluation of this coating composition was good.

Example 2 Liquid paraffin (product name: KP-30, manufactured by Idemitsu Kosan) 1
An aqueous dispersion containing 0.5% carnauba wax (manufactured by Takamatsu Yushi Co., Ltd.) and 0.5% sodium polyacrylate (trade name Nearonbis, Nippon Tsumugi Yakuli) was prepared in the same manner as in Example 1.The resulting coating The overall evaluation given to the composition was very good.

Example 3 A coating composition was prepared in the same manner as in Example 1 by blending water with liquid paraffin (same as in Example 1) at 15% and morpholine fatty acid salt (manufactured by Takamatsu Yushi Co., Ltd.) at 5%.

The overall evaluation of this coating composition was good.

Example 4 Liquid paraffin (same as Example 1) 12'%, polyoxy/ethylene sorbitan monooleate (trade name: TW
EεN80. 0.6% (manufactured by Kako Atlas), 0.2% of sorbitan monooleate (product name: 5PAN80° manufactured by Kako Atlas), 0.5% of sodium polyacrylate (product name: Aronbis, manufactured by Nippon Tsumugi Pharmaceutical Co., Ltd.). A coating composition was prepared in the same manner as in Example 1.

The overall evaluation of the obtained coating composition was extremely good.

Example 5 10% liquid paraffin (same as Example 1), sorbitan fatty acid ester (trade name: TWEEN 80).

11 Example 1
A coating composition was prepared in the same manner as above.

When this coating composition was comprehensively evaluated, it was evaluated as being good.

Example 6 Liquid paraffin (trade name: Niramor Oil, manufactured by Kenritsu Kagaku) 12%, carnauba wax (manufactured by Takamatsu Yushi) 3%, sorbitan fatty acid ester (trade name: 5PAN80, manufactured by Kako Atlas) 0.8%, glycerin fatty acid ester (
(Product name: Sangri, manufactured by Taiyo Yushi) 03%, propylene glycol fatty acid ester (Product name: Rikemar, manufactured by Riken Vitamin) 0.2%, and vinyl acetate resin (Product name: Gosenil).

1 Yomoto Synthetic Chemical Co., Ltd.) Blend with water to a concentration of 0.1%,
A coating composition was prepared in the same manner as in Example 1.

The overall evaluation of the coating composition was very good.

Example 7 Liquid paraffin (trade name 2 Lamor Oil, manufactured by Kenritsu Kagaku) 7%, alginate propylene glycol ester (trade name: Datsukroid, manufactured by Kamogawa Kasei) 0.01%, cellulose calcium glycolate (trade name: ECG - 505
, Daicel series) 0.01 and morpholine fatty acid salts (
Takamatsu Yushi Co., Ltd.) was mixed with water to a concentration of 0.2%, and a coating composition was prepared in the same manner as in Example 1. The resulting coating composition received an overall evaluation of being very good.

Example 8 Liquid paraffin (product name: KP-30, manufactured by Idemitsu Kosan) 1
0%, carnauba wax (manufactured by Takamatsu Oil Co., Ltd.) 0.5%, sodium polyacrylate (product name Nialonbis, manufactured by Nippon Tsumugi Pharmaceutical Co., Ltd.) 0.02%, starch sodium phosphate ester (product name 2), Irate F, Nichirin Chemical Co., Ltd.) and morpholine fatty acid salt (Takamatsu Yushi Co., Ltd.) 0.15% with water to prepare a coating composition in the same manner as in Example 1. The overall evaluation of the obtained composition was good.

Example 9 Liquid paraffin (product name: KP-30, manufactured by Idemitsu Kosan)
5%, carnauba wax (manufactured by Takamatsu Yushi) 0.3%.

Glycerin (manufactured by Asahi Denka) 5%, methyl cellulose (trade name Metrose, manufactured by Shin-Etsu Chemical) 0.2%, and morpholine fatty acid salt (manufactured by Takamatsu Yushi) 1% with water,
Thereafter, an aqueous dispersion of a coating composition was prepared in the same manner as in Example 1, and a comprehensive evaluation was performed on this composition. As a result, this product was evaluated as being extremely good.

Example 10 Liquid paraffin (same as Example 1) 5%, propylene glycol fatty acid ester (trade name: Rikemar, manufactured by Riken Vitamin Oil) 1 t, polyacrylic acid) l) Rum (trade name: Nialonbis, manufactured by Nippon Tsumugi Pharmaceutical Co., Ltd.) ) 2% and propylene glycol (manufactured by Asahi Denka) in Example 1.
Prepared in the same manner. The overall evaluation of the obtained coating composition was good.

Example 11 Flow fltJ+ Halafin (trade name, Ramol oil,
Prefectural Chemical Co., Ltd.) 15%, sodium alginate (trade name Nisnor Algin, Fuji Chemical System) 0.5%, morpholine fatty acid salt (Takamatsu Yushi M) 3.5%, and ethyl alcohol 3.5% water. Then, a coating composition was prepared in the same manner as in Example 1. When the obtained coating composition was comprehensively evaluated, it was evaluated as being good.

Example 12 Liquid paraffin (trade name: Niramor Oil, manufactured by Kenritsu Kagaku) 3%, carnauba wax (manufactured by Takamatsu Yushi) 1%, sorbitan monolaurate (trade name: 5PAN20, manufactured by Kako Atlas) 0.05%, glycerin mono Stearate (Product name: Aldo 28゜Glyco product
manufactured by) 0.6. %, sucrose fatty acid ester (product name 2D
K ester, Dai-Kogyo Seiyaku type) 0.1%, soybean phospholipid (trade name Niresion, manufactured by Riken Vitamin) 0.03%,
Sodium polyacrylate (same as Example 1) o, oo
14,4 zein (manufactured by Daiichi Kasei) 0.002% 2morpholine fatty acid salt (manufactured by Takamatsu Yushi) > 0.1% and propylene glycol (manufactured by Asahi Denka) 1% were blended with water to give Example 1. A coating composition was prepared in the same manner.The overall evaluation of the obtained coating composition was extremely good.

4

Claims (1)

[Claims] (1+) Rubbing of bottles containing (A) liquid paraffin and/or carnauba wax and (B) at least one substance selected from emulsifiers, glues, coating agents and solvents. Coating composition for wounds. (2) The emulsifier is norbitan fatty acid ester, higher alcohol fatty acid ester, glycerin fatty acid ester,
The composition according to claim 1, which is a sucrose fatty acid ester, a phlopylene gellicol fatty acid ester, a soybean phospholipid, or a mixture of two or more thereof. (3) Thickening agent is sodium polyacrylic enzyme, propylene glycol alginate, calcium cellulose glycolate, sodium cellulose glycolate, sodium starch glycolate, sodium starch phosphate,
The composition according to claim 1, which is methylcellulose, sodium alginate, sodium caseinate, casein, or a mixture of two or more thereof. (4) The coating agent is morpholine fatty acid salt, fatty acid ammonia
Inium salt, oxyethylene higher fatty acid alcohol. The composition according to claim 1, which is sodium oleate, vinyl acetate resin, or a mixture of two or more thereof. (5) The solvent is glycerin or propylene glycol. The composition according to claim 1, which is ethyl alcohol or a mixture of two or more thereof. (6) In the aqueous dispersion, 1 to 30% of the active ingredient iB) In the ingredients, the emulsifier is less than 10%, the glue is less than 5%, and the coating agent is 10%.
The composition according to claim 1, containing 10% or less of a solvent and a solvent.