CN109486567B - Liquid medicine for jewelry degumming - Google Patents
Liquid medicine for jewelry degumming Download PDFInfo
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- CN109486567B CN109486567B CN201811499066.4A CN201811499066A CN109486567B CN 109486567 B CN109486567 B CN 109486567B CN 201811499066 A CN201811499066 A CN 201811499066A CN 109486567 B CN109486567 B CN 109486567B
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/28—Organic compounds containing halogen
- C11D7/30—Halogenated hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/261—Alcohols; Phenols
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/264—Aldehydes; Ketones; Acetals or ketals
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/268—Carbohydrates or derivatives thereof
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- Emergency Medicine (AREA)
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Abstract
The invention relates to the field of jewelry, and provides a liquid medicine for jewelry degumming aiming at the problem that the appearance of jewelry is easily influenced when protective glue on the surface of the jewelry is removed, which comprises the following components in parts by weight: 45-60 parts of dichloromethane; 45-60 parts of trichloroethylene; 7.5-10 parts of polyacrylate adsorption resin; 7.5-10 parts of butanone; 15-20 parts of dihydric alcohol; 22.5-30 parts of purified water. The polyurethane glue has good solubility in butanone, and the polyurethane glue on the jewelry is dissolved by the butanone, so that the dyed part of the jewelry is not easily influenced in the removing process of the polyurethane glue, and the beautiful effect of the appearance of the jewelry is not easily influenced.
Description
Technical Field
The invention relates to the field of jewelry, in particular to a liquid medicine for degumming jewelry.
Background
The jewelry in the narrow sense refers to jade products, and the jewelry in the broad sense comprises gold, silver and natural materials (minerals, rocks, organisms and the like), and is jewelry, artware or other treasures with certain value. Jewelry primarily plays a decorative role.
In order to make the appearance of the jewelry more colorful and improve the decorative effect of the jewelry, the appearance of the jewelry is usually dyed. However, the staining of jewelry is usually partial, and therefore, it is necessary to cover the non-stained part during the staining of jewelry. In the prior art, polyurethane glue is generally coated on an undyed part for protection, and the polyurethane glue covering the undyed part is scraped after dyeing is finished.
However, in the process of scraping off the polyurethane glue, the scraping force is difficult to grasp, and the coating of the dyed part of the jewelry may be carelessly hung off, so that the aesthetic effect of the appearance of the jewelry is affected, and there is still room for improvement.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the liquid medicine for jewelry degumming, which has the advantages of convenience in degumming and contribution to protecting the appearance of jewelry and having an attractive effect.
In order to achieve the purpose, the invention provides the following technical scheme:
the liquid medicine for jewelry degumming comprises the following components in parts by weight:
45-60 parts of dichloromethane;
45-60 parts of trichloroethylene;
7.5-10 parts of polyacrylate adsorption resin;
7.5-10 parts of butanone;
15-20 parts of dihydric alcohol;
22.5-30 parts of purified water.
By adopting the technical scheme, the polyurethane glue has good solubility in butanone, and the polyurethane glue on the jewelry is dissolved by using butanone, so that the dyed part of the jewelry is not easily influenced in the removing process of the polyurethane glue, and the beautiful effect of the appearance of the jewelry is not easily influenced; the dichloromethane has the advantages of strong dissolving capacity and low toxicity, the trichloroethylene is a good solvent, the dissolving speed of the polyurethane glue is favorably accelerated, the polyurethane glue is more completely dissolved, the condition that the appearance is influenced because the polyurethane glue is easily left on the surface of jewelry is reduced, and meanwhile, the butanone is also a good solvent of the acrylic acid adsorption resin, the compatibility of each component in the liquid medicine is favorably improved, so that the stability of the liquid medicine is enhanced; the polyacrylate adsorption resin has excellent adsorbability, is a medium-polarity adsorbent, can adsorb polar substances and non-polar substances, so that the volatile peculiar smell of components with pungent smell in the liquid medicine is easily adsorbed, the influence of the volatile components of the liquid medicine on the health of a human body is reduced, and meanwhile, butanone and dichloromethane have low toxicity, so that the environmental protection performance of the liquid medicine is improved, and the liquid medicine is not easy to influence the health of an operator; in addition, urethane groups in the polyurethane are easy to perform ester exchange reaction with dihydric alcohol to generate a polyol urethane compound, the polyol urethane compound contains a polyurethane structure and can also be used as a coating and an adhesive, and the coating and the adhesive with the polyurethane structure have the characteristics of excellent wear resistance, excellent chemical resistance, oil resistance and strong adhesive force, so that a layer of protective film is easy to cover the surface of the jewelry after the jewelry is soaked in a liquid medicine for degumming, the protection of a dyeing coating on the surface of the jewelry is facilitated, the dyeing coating is not easy to damage, and the aesthetic effect of the appearance of the jewelry is not easy to influence; meanwhile, the polyol carbamate compound does not contain toxic isocyanate groups, so that the protective film is not easy to generate toxic substances, the environment-friendly performance of jewelry is improved, and the protective film on the surface of the jewelry is not easy to influence human health.
The invention is further configured to: the mass ratio of the dichloromethane to the trichloroethylene is 1: 1.
by adopting the technical scheme, the mass ratio of the dichloromethane to the trichloroethylene is 1: 1, the dissolving efficiency of dichloromethane, trichloroethylene and butanone is improved, the polyurethane glue is dissolved more completely, the sol effect of the liquid medicine is improved, and the condition that the appearance is influenced because the polyurethane glue is easily left on the surface of jewelry is reduced; meanwhile, after the polyurethane glue is completely dissolved, the liquid medicine covers the surface of the jewelry to form a protective film, so that the covering efficiency is improved.
The invention is further configured to: the paint also comprises the following components in parts by mass:
3.75-5 parts of methanol.
By adopting the technical scheme, the methanol is added and is a good solvent, so that the compatibility of each component in the liquid medicine is favorably improved, and the stability of the liquid medicine is improved; meanwhile, the methanol can also be used as an eluent of the polyacrylate adsorption resin, so that adsorbed substances of the polyacrylate adsorption resin are eluted, and the cyclic utilization of the polyacrylate adsorption resin is facilitated.
The invention is further configured to: the paint also comprises the following components in parts by mass:
1.5-2 parts of a thickening agent.
Adopt above-mentioned technical scheme, through adding the thickener, be favorable to strengthening the consistency of liquid medicine for the jewelry is soaked in liquid medicine and is come unstuck the back, and liquid medicine adheres to in the jewelry surface more easily in order to form the protection film, thereby is favorable to carrying out better protection to the jewelry, makes the apparent pleasing to the eye effect of jewelry better.
The invention is further configured to: the thickening agent is a cellulose thickening agent.
Adopt above-mentioned technical scheme, be the setting of cellulose thickener through the thickener, because the thickening mechanism of cellulose thickener is through the winding of molecular chain in order to realize that the viscosity improves, when static or low shear rate, the cellulose molecule is in unordered state and makes the system present high viscosity, and when high shear rate, the molecule is on a parallel with flow direction and makes the orderly arrangement, easily mutual slip, so system viscosity descends, thereby make the jewelry when dissolving the polyurethane glue, the accessible stirs the thickness that liquid medicine makes liquid medicine reduce, and then make jewelry and liquid medicine fully contact, be favorable to fully dissolving of polyurethane glue, and after polyurethane glue dissolves completely, can be with the jewelry stand in the liquid medicine, make the thickness of liquid medicine increase, and then be favorable to liquid medicine to adhere to in the jewelry surface of jewelry in order to form the protection film.
The invention is further configured to: the thickening agent is methyl cellulose.
Adopt above-mentioned technical scheme, be methylcellulose's setting through the thickener, the membrane that methylcellulose becomes has good toughness, flexibility and transparency to be favorable to strengthening the intensity of the protection film of adhering to on jewelry surface, make the protection film be difficult to damaged, and then be favorable to protecting the outward appearance of jewelry, simultaneously, transparent protection film is difficult to exert an influence to the outward appearance of jewelry, is favorable to the jewelry surface to keep pleasing to the eye effect.
The invention is further configured to: the paint also comprises the following components in parts by mass:
1.5-2 parts of vinyl acetate-acrylate polymer.
By adopting the technical scheme, the vinyl acetate-acrylate polymer is added, and the vinyl acetate-acrylate polymer has good adhesion with the jewelry, so that the adhesion between the liquid medicine and the jewelry is enhanced, and the liquid medicine is more easily attached to the surface of the jewelry to form a protective film after the jewelry is completely degummed after being soaked in the liquid medicine; in addition, according to the principle of similar compatibility, the vinyl acetate-acrylate polymer and the polyacrylate adsorbent resin have similar functional groups, so that the vinyl acetate-acrylate polymer and the polyacrylate adsorbent resin have good compatibility, the compatibility of each component in the liquid medicine is improved, and the stability of the liquid medicine is improved.
The invention is further configured to: the paint also comprises the following components in parts by mass:
0.75-1 part of brightener.
By adopting the technical scheme, the brightener is added, so that the cleanness and the glossiness of the surface of the protective film are favorably improved, the polishing effect of the surface of the protective film is improved, and the decoration of the surface of the jewelry is favorably improved.
In conclusion, the invention has the following beneficial effects:
1. the polyurethane glue has good solubility in butanone, and the butanone is utilized to dissolve the polyurethane glue on the jewelry, so that the dyed part of the jewelry is not easily influenced in the removing process of the polyurethane glue, and the beautiful effect of the appearance of the jewelry is not easily influenced;
2. the dichloromethane has the advantages of strong dissolving capacity and low toxicity, the trichloroethylene is a good solvent, so that the polyurethane glue is dissolved more completely, the condition that the appearance is influenced because the polyurethane glue is easily left on the surface of jewelry is reduced, and meanwhile, the butanone is also a good solvent of the acrylic acid adsorption resin, so that the compatibility of each component in the liquid medicine is favorably improved, and the stability of the liquid medicine is enhanced;
3. the polyacrylate adsorption resin has excellent adsorbability, so that the peculiar smell volatilized by components with pungent smell in the liquid medicine is easily adsorbed, and meanwhile, butanone and dichloromethane have low toxicity, so that the liquid medicine is not easy to influence the health of operators;
4. the urethane group in the polyurethane is easy to perform ester exchange reaction with dihydric alcohol to generate a polyol urethane compound, the polyol urethane compound contains a polyurethane structure and can also be used as a coating and an adhesive, and the coating with the polyurethane structure has the characteristics of excellent wear resistance, excellent chemical resistance, oil resistance and strong adhesive force, so that after the jewelry is soaked in a liquid medicine for degumming, the surface of the jewelry is easily covered with a layer of protective film, the dyed coating is not easy to damage, and the beautiful effect of the appearance of the jewelry is not easy to influence;
5. the polyol carbamate compound does not contain toxic isocyanate groups, so that the protective film is not easy to generate toxic substances, and the protective film on the surface of jewelry is not easy to influence human health.
Detailed Description
The present invention will be described in further detail with reference to examples.
In the following examples, acrylic resin having a designation of MB-2660, which was a product of chemical industries, Ltd, was used as the polyacrylate adsorbent resin.
In the following examples, the mass percentage of acrylate in the vinyl acetate-acrylate polymer was 35%.
In the following examples, brightener, model S-83F from Shanghai Germany trade company, Inc., was used as the brightener.
Example 1
The liquid medicine for jewelry degumming comprises the following components in parts by weight:
45kg of dichloromethane; 45kg of trichloroethylene; 7.5kg of acrylate adsorption resin; butanone 7.5 kg; 15kg of dihydric alcohol; 22.5kg of purified water.
In this embodiment, the diol is ethylene glycol, and in other embodiments, the diol may be 1, 3-propanediol, 1, 4-butanediol, 1, 3-butanediol, 2, 3-butanediol, 1, 4-pentanediol, or the like.
The preparation method of the liquid medicine for degumming jewelry comprises the following steps:
(1) adding 22.5kg of purified water into a 200L stirring kettle at normal temperature, and stirring at the rotating speed of 40 r/min;
(2) adding 45kg of dichloromethane and 45kg of trichloroethylene while stirring, and uniformly stirring to obtain a premix;
(3) adding 7.5kg of acrylate adsorption resin, 7.5kg of butanone and 15kg of ethylene glycol while stirring the premix, and uniformly stirring to obtain the liquid medicine for jewelry degumming.
Example 2
The liquid medicine for jewelry degumming comprises the following components in parts by weight:
52.5kg of dichloromethane; 52.5kg of trichloroethylene; 8.7kg of acrylate adsorption resin; 8.7kg of butanone; 17.5kg of dihydric alcohol; 26kg of purified water.
In this example, the diol is 1, 3-propanediol.
The preparation method of the liquid medicine for degumming jewelry comprises the following steps:
(1) adding 26kg of purified water into a 200L stirring kettle at normal temperature, and stirring at the rotating speed of 40 r/min;
(2) adding 52.5kg of dichloromethane and 52.5kg of trichloroethylene while stirring, and uniformly stirring to obtain a premix;
(3) adding 8.7kg of acrylate adsorption resin, 8.7kg of butanone and 17.5kg of 1, 3-propylene glycol while stirring the premix, and uniformly stirring to obtain the liquid medicine for jewelry degumming.
Example 3
The liquid medicine for jewelry degumming comprises the following components in parts by weight:
60kg of dichloromethane; 60kg of trichloroethylene; 10kg of acrylate adsorption resin; 10kg of butanone; 20kg of dihydric alcohol; 30kg of purified water.
In this example, the diol is 1, 4-butanediol.
The preparation method of the liquid medicine for degumming jewelry comprises the following steps:
(1) adding 30kg of purified water into a 200L stirring kettle at normal temperature, and stirring at the rotating speed of 40 r/min;
(2) adding 60kg of dichloromethane and 60kg of trichloroethylene while stirring, and uniformly stirring to obtain a premix;
(3) adding 10kg of acrylate adsorption resin, 10kg of butanone and 20kg of dihydric alcohol into the premix while stirring, and uniformly stirring to obtain the jewelry degumming liquid medicine.
Example 4
The liquid medicine for jewelry degumming comprises the following components in parts by weight:
52.5kg of dichloromethane; 52.5kg of trichloroethylene; 8.7kg of acrylate adsorption resin; 8.7kg of butanone; 17.5kg of dihydric alcohol; 26kg of purified water; 3.75kg of methanol; 1.5kg of methyl cellulose; 1.5kg of vinyl acetate-acrylate polymer; 0.75kg of brightener.
In this example, the diol is 1, 3-butanediol.
The preparation method of the liquid medicine for degumming jewelry comprises the following steps:
(1) adding 26kg of purified water into a 200L stirring kettle at normal temperature, and stirring at the rotating speed of 40 r/min;
(2) adding 52.5kg of dichloromethane and 52.5kg of trichloroethylene while stirring, and uniformly stirring to obtain a premix;
(3) adding 8.7kg of acrylate adsorption resin, 8.7kg of butanone, 17.5kg of 1, 3-butanediol, 3.75kg of methanol, 1.5kg of methyl cellulose, 1.5kg of vinyl acetate-acrylate polymer and 0.75kg of brightener while stirring the premix, and uniformly stirring to obtain the liquid medicine for jewelry degumming.
Example 5
The liquid medicine for jewelry degumming comprises the following components in parts by weight:
52.5kg of dichloromethane; 52.5kg of trichloroethylene; 8.7kg of acrylate adsorption resin; 8.7kg of butanone; 17.5kg of dihydric alcohol; 26kg of purified water; 4.4kg of methanol; 1.7kg of methyl cellulose; 1.8kg of vinyl acetate-acrylate polymer; 0.8kg of brightener.
In this example, the diol is 2, 3-butanediol.
The preparation method of the liquid medicine for degumming jewelry comprises the following steps:
(1) adding 26kg of purified water into a 200L stirring kettle at normal temperature, and stirring at the rotating speed of 40 r/min;
(2) adding 52.5kg of dichloromethane and 52.5kg of trichloroethylene while stirring, and uniformly stirring to obtain a premix;
(3) adding 8.7kg of acrylate adsorption resin, 8.7kg of butanone, 17.5kg of 2, 3-butanediol, 4.4kg of methanol, 1.7kg of methyl cellulose, 1.8kg of vinyl acetate-acrylate polymer and 0.8kg of brightener while stirring the premix, and uniformly stirring to obtain the liquid medicine for jewelry degumming.
Example 6
The liquid medicine for jewelry degumming comprises the following components in parts by weight:
52.5kg of dichloromethane; 52.5kg of trichloroethylene; 8.7kg of acrylate adsorption resin; 8.7kg of butanone; 17.5kg of dihydric alcohol; 26kg of purified water; 5kg of methanol; 2kg of methyl cellulose; 2kg of vinyl acetate-acrylate polymer; 1kg of brightener.
In this example, the diol is 1, 4-pentanediol.
The preparation method of the liquid medicine for degumming jewelry comprises the following steps:
(1) adding 26kg of purified water into a 200L stirring kettle at normal temperature, and stirring at the rotating speed of 40 r/min;
(2) adding 52.5kg of dichloromethane and 52.5kg of trichloroethylene while stirring, and uniformly stirring to obtain a premix;
(3) adding 8.7kg of acrylate adsorption resin, 8.7kg of butanone, 17.5kg of 1, 4-pentanediol, 5kg of methanol, 2kg of methyl cellulose, 2kg of vinyl acetate-acrylate polymer and 1kg of brightener while stirring the premix, and uniformly stirring to obtain the medicinal liquid for jewelry degumming.
Comparative example 1
The liquid medicine for jewelry degumming comprises the following components in parts by weight:
52.5kg of dichloromethane; 52.5kg of trichloroethylene; 8.7kg of acrylate adsorption resin; 26kg of purified water.
The preparation method of the liquid medicine for degumming jewelry comprises the following steps:
(1) adding 26kg of purified water into a 200L stirring kettle at normal temperature, and stirring at the rotating speed of 40 r/min;
(2) adding 52.5kg of dichloromethane and 52.5kg of trichloroethylene while stirring, and uniformly stirring to obtain a premix;
(3) adding 8.7kg of acrylate adsorption resin while stirring the premix, and uniformly stirring to obtain the liquid medicine for jewelry degumming.
Comparative example 2
The liquid medicine for jewelry degumming comprises the following components in parts by weight:
45kg of dichloromethane; 52.5kg of trichloroethylene; 8.7kg of acrylate adsorption resin; 8.7kg of butanone; 17.5kg of dihydric alcohol; 26kg of purified water.
In this example, the diol is 1, 4-pentanediol.
The preparation method of the liquid medicine for degumming jewelry comprises the following steps:
(1) adding 26kg of purified water into a 200L stirring kettle at normal temperature, and stirring at the rotating speed of 40 r/min;
(2) adding 45kg of dichloromethane and 52.5kg of trichloroethylene while stirring, and uniformly stirring to obtain a premix;
(3) adding 8.7kg of acrylate adsorption resin, 8.7kg of butanone and 17.5kg of 1, 4-pentanediol while stirring the premix, and uniformly stirring to obtain the liquid medicine for jewelry degumming.
Comparative example 3
The liquid medicine for jewelry degumming comprises the following components in parts by weight:
52.5kg of dichloromethane; 45kg of trichloroethylene; 8.7kg of acrylate adsorption resin; 8.7kg of butanone; 17.5kg of dihydric alcohol; 26kg of purified water.
In this example, the diol is 2, 3-butanediol.
The preparation method of the liquid medicine for degumming jewelry comprises the following steps:
(1) adding 26kg of purified water into a 200L stirring kettle at normal temperature, and stirring at the rotating speed of 40 r/min;
(2) adding 52.5kg of dichloromethane and 45kg of trichloroethylene while stirring, and uniformly stirring to obtain a premix;
(3) adding 8.7kg of acrylate adsorption resin, 8.7kg of butanone and 17.5kg of 2, 3-butanediol while stirring the premix, and uniformly stirring to obtain the liquid medicine for jewelry degumming.
The test data of each example and comparative example are shown in tables 1 to 2.
Experiment 1
Preparing 9 200ml containers with the same shape and size and 9 jewels with the same shape and size, wherein the dyeing positions, the polyurethane glue covering positions and the polyurethane glue covering thicknesses of the 9 jewels with the same shape and size are all consistent, pouring the liquid medicines for jewelry degumming prepared in the examples 1-6 and the comparative examples 1-3 into the 9 200ml containers respectively, putting the 9 jewels into the liquid medicines in the containers respectively under the normal temperature condition, taking out the jewels after 10min, observing and recording the residual quantity of the polyurethane glue on the jewels.
Experiment 2
The jewelry taken out in the experiment 1 is continuously put back into the corresponding container and soaked in the liquid medicine, the polyurethane glue is shaken to completely dissolve the polyurethane glue, after the polyurethane glue covered on the jewelry is completely dissolved, the jewelry is taken out and cleaned, after the polyurethane glue on the surface of all the jewelry is completely dissolved and cleaned, the jewelry is put back into the corresponding container, and after 10min, the jewelry is taken out to observe and record the coverage of the protective film covered on the jewelry.
TABLE 1
TABLE 2
According to the comparison of the data of the examples 1-3 and the comparative example 1 in the tables 1 and 2, the polyurethane glue has good solubility in butanone by adding butanone, so that the polyurethane glue is easily dissolved in the liquid medicine, the polyurethane glue covered on the surface of jewelry is completely dissolved, the residual quantity of the polyurethane glue on the jewelry is reduced, the dyed part of the jewelry is not easily influenced in the removing process of the polyurethane glue, and the appearance effect of the jewelry is not easily influenced; meanwhile, the urethane group in the polyurethane is easy to perform ester exchange reaction with dihydric alcohol to generate a polyol urethane compound, the polyol urethane compound contains a polyurethane structure, so that the polyol urethane compound also has the functions of a coating and an adhesive, and the polyurethane structure also has the characteristics of wear resistance, chemical resistance, oil resistance and strong adhesive force, so that a liquid medicine is easy to form a protective film on the surface of jewelry, the coverage of the protective film on the surface of the jewelry is increased, and further, the protection of the dyed coating on the surface of the jewelry is facilitated, the dyed coating on the surface of the jewelry is not easy to damage, and further, the appearance effect of the jewelry is not easy to influence.
According to the data comparison between examples 1-3 and comparative examples 2-3 in table 1 and table 2, the mass ratio of dichloromethane to trichloroethylene is 1: 1, the dissolving speed of the polyurethane glue in the liquid medicine is improved, so that the polyurethane glue is dissolved more completely in the liquid medicine, and the amount of the residual polyurethane glue on the surface of the jewelry is reduced; meanwhile, the covering efficiency of the liquid medicine on the surface of the jewelry is improved, after the polyurethane glue is dissolved, the liquid medicine can form a protective film on the surface of the jewelry more easily, so that the covering amount of the protective film on the surface of the jewelry is increased, the protection of the dyeing coating on the surface of the jewelry is facilitated, and the good appearance effect of the surface of the jewelry is maintained.
As can be seen from the comparison of the data in Table 2 between examples 1-3 and examples 4-6, the solubility of the polyurethane glue in the liquid medicine can be improved to some extent by adding methanol, so that the residual amount of the polyurethane glue is reduced; by adding methyl cellulose and vinyl acetate-acrylate copolymer, the adhesion between the liquid medicine and the jewelry can be enhanced to a certain extent, so that the liquid medicine is easier to adhere to the jewelry to form a protective film, and the coverage of the protective film on the surface of the jewelry is increased.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (3)
1. A liquid medicine for degumming jewelry is characterized in that: the paint comprises the following components in parts by mass:
45-60 parts of dichloromethane;
45-60 parts of trichloroethylene;
7.5-10 parts of polyacrylate adsorption resin;
7.5-10 parts of butanone;
15-20 parts of dihydric alcohol;
22.5-30 parts of purified water;
3.75-5 parts of methanol;
1.5-2 parts of a thickening agent, wherein the thickening agent is methyl cellulose;
the mass ratio of the dichloromethane to the trichloroethylene is 1: 1.
2. the liquid medicine for jewelry degumming according to claim 1, characterized by: the paint also comprises the following components in parts by mass:
1.5-2 parts of vinyl acetate-acrylate polymer.
3. The liquid medicine for jewelry degumming according to claim 1, characterized by: the paint also comprises the following components in parts by mass:
0.75-1 part of brightener.
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| CN201811499066.4A CN109486567B (en) | 2018-12-08 | 2018-12-08 | Liquid medicine for jewelry degumming |
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| CN109486567B true CN109486567B (en) | 2021-04-16 |
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| CN113563989A (en) * | 2021-08-04 | 2021-10-29 | 上海淑苑科技有限公司 | Jewelry cleaning agent and preparation method thereof |
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