KR20190025667A - Cleaner composition for screen plates - Google Patents

Abstract

Providing a detergent composition for a screen plate having excellent cleaning property and liquid removal property.
The present disclosure relates in one aspect to an amine (component A) or salt thereof having a solubility in water of 100 g at 25 占 폚 of less than 10 g, a solvent having a solubility of 0.02 g or more and less than 10 g per 100 g of water at 25 占 폚 B), and water, and the component A is at least one selected from the group consisting of primary amines, secondary amines and tertiary amines having 6 or more and 26 or less carbon atoms.

Description

Cleaner composition for screen plates

The present disclosure relates to a detergent composition for a screen plate and a method of cleaning the screen plate.

When electronic parts are mounted on a printed board or a ceramic board, soldering is generally performed. Generally, for soldering, a flux is used for the purpose of removing solder and an oxide film on the surface of the base material, or preventing the surface of the solder and the base material from being reoxidized and obtaining sufficient solder connection. However, various detergent compositions for cleaning and removing flux residues have been proposed in that the flux is corrosive and the flux residue degrades the quality of the printed wiring board.

For example, Patent Document 1 discloses that 75 to 94.99% by weight of a specific water-soluble glycol ether, 0.01 to 5% by weight of organic amines having a boiling point of 170 to 270 캜 for washing various contaminants such as flux residue and metal processing oil, By weight of water and 5 to 20% by weight of water, and substantially no other component is disclosed.

Patent Document 2 discloses a detergent composition comprising a glycol solvent, an amine and / or a surfactant for cleaning a flux and a remelted solution remaining on a substrate in an arbitrary process at the time of manufacturing a printed board.

In recent years, from the viewpoints of low power consumption and high-speed processing, electronic components have been downsized, and wiring patterns have become finer. Screen printing using a screen plate is mainly performed to form fine wiring. However, it is feared that adhesion of various pastes such as fluxes and solder paste to the screen plate surface by repeated use of the screen plate leads to product defects such as wiring failure, which is a great problem in the future. However, in the conventional detergent composition, cleaning property against contaminants such as flux and solder paste adhered to the screen plate was not sufficient. In addition, although the cleaning apparatus used before Freon regulation is still widely used, it has been de-freoned as a cleaning agent. However, in view of the structure and structure of the cleaning apparatus, the screen plate is used without drying after rinsing, The cleaning agent is required to have fast drying and liquid removal properties. In addition, when an organic solvent having flammability is used, it is necessary to provide a rigid facility to make explosion-proof specifications, and it is required to have a flammable property, that is, a high boiling point water containing low volatility, There is a demand for a cleaning agent having high cleaning property capable of coping with liquid removal property and fine wiring.

For example, Patent Document 3 discloses that 25 to 45% by weight of at least one glycol ether compound having a certain boiling point and being water-soluble, one or two or more glycol ether compounds having a constant boiling point and a predetermined amount of water- 5 to 25% by weight of an amine compound, 0.005 to 1.0% by weight of an amine compound, and water (balance).

Patent Document 4 discloses that as a detergent for cleaning an object to be cleaned with an organic EL material, 5 to 80% by mass of a specific propylene glycol such as propyl propylene diglycol and a specific pyrrolidone such as N-methyl- And 20 to 95% by mass of tallow.

Patent Document 5 discloses a composition for cleaning a screen plate containing a hydrophilic glycol ether monoalkyl ether having a low boiling point, a hydrophilic glycol ether monoalkyl ether having a high boiling point, and water.

Japanese Patent Application Laid-Open No. 9-87668 Japanese Unexamined Patent Publication No. 5-125395 Japanese Patent Application Laid-Open No. 9-59688 Japanese Laid-Open Patent Publication No. 2006-265300 Japanese Patent Application Laid-Open No. 2000-267293

In order to prevent product defects caused by residuals of various pastes such as fluxes and solder pastes on the screen plate surface due to repeated use of the screen plate due to miniaturization of the wiring pattern of the screen plate, Is required. In addition, in order to obtain high productivity, it is desirable that the substrate can be dried quickly after cleaning, and the cleaning agent is required to have a high liquid removal property. However, in the method described in the above patent documents, there was nothing capable of achieving both high cleaning performance and quick liquid removal performance.

Thus, the present disclosure provides a detergent composition and a cleaning method for a screen plate excellent in cleaning property and liquid removal property.

The present disclosure relates in one aspect to an amine (component A) or salt thereof having a solubility in water of 100 g at 25 占 폚 of less than 10 g, a solvent having a solubility of 0.02 g or more and less than 10 g per 100 g of water at 25 占 폚 B) and water, wherein the component A is at least one selected from the group consisting of primary amines, secondary amines and tertiary amines having 6 or more and 26 or less carbon atoms.

The present disclosure relates in one aspect to a method of cleaning a screen plate, comprising the step of cleaning the object to be cleaned using the detergent composition according to the present disclosure, wherein the object to be cleaned is a screen plate after screen printing .

This disclosure relates in one aspect to the use of a detergent composition in connection with the present disclosure for cleaning screen plates after screen printing.

This disclosure relates in one aspect to the use of a detergent composition in accordance with this disclosure for removing at least one of a flux and a solder paste from a screen plate.

According to the present disclosure, it is possible to provide a cleaning composition for a screen plate that is excellent in cleaning property and liquid removal property. By using the cleaning composition of the present disclosure, the time required for cleaning and drying the screen plate can be shortened, and a screen plate excellent in cleanliness can be efficiently obtained. Further, the production of electronic parts such as a high- The efficiency can be improved.

The present disclosure relates to a detergent composition for use in cleaning a screen plate, which contains a tertiary amine (component A) having 6 to 26 carbon atoms and a solubility of less than 10 g in 100 g of water at 25 DEG C and a water 100 (component B) having a solubility in the range of 0.02 g or more and less than 10 g based on the total amount of the solvent (component B) is improved.

That is, the disclosure relates to an amine (component A) or a salt thereof having a solubility in water of 100 g at 25 캜 of less than 10 g, a solvent having a solubility of 0.02 g or more and less than 10 g in 100 g of water at 25 캜 (Hereinafter referred to as " cleaning composition for screen plate ") containing at least one member selected from the group consisting of primary amine, secondary amine and tertiary amine having 6 to 26 carbon atoms, Quot; detergent composition related to the present disclosure "). According to the present disclosure, it is possible to provide a cleaning composition for a screen plate that is excellent in cleaning property and liquid removal property. By using the detergent composition according to the present disclosure, the time required for cleaning and drying the screen plate can be shortened, and a screen plate excellent in cleanliness can be efficiently obtained. Furthermore, the use of a detergent composition for electronic parts such as a high- The production efficiency can be improved.

The details of the mechanism of action of the effect in the detergent composition related to this disclosure are unclear, but are estimated as follows.

When the detergent composition according to the present disclosure is used for cleaning the screen plate after screen printing, the amine of the component A in the detergent composition is adsorbed on the surface of the screen plate in view of low solubility in water and low hydrophilicity, The screen plate surface is hydrophobic. Component A adsorbs or penetrates into an oily component such as a flux at the same time as hydrophobicity of the surface of the screen plate increases the fluidity of the oily component and charges and repels the surface of the screen plate. As described above, it is considered that the component A acts on the surface of the screen plate and the oil component such as flux, thereby removing (removing) the oily component from the screen plate and preventing the removed oily component from reattaching to the screen plate . Further, it is considered that oily components are easily removed from the screen plate by the aid of the physical force by spraying or ultrasonic waves in the cleaning by the cleaning composition. In this manner, removal of the oily component from the screen plate and prevention of redeposition can be prevented and agglomeration of the oily component can be suppressed, so that cleaning property is presumed to be improved. Further, it is presumed that the surface of the screen plate is hydrophobic and / or the surface tension of the detergent composition is large, so that the liquid removing property is accelerated.

In addition, since the solvent of the component B in the detergent composition has a certain degree of solubility in water, the component A can be uniformly stabilized in water in compatibility with the component A, and the solvent can be adsorbed or penetrated into the oily components such as the flux It is presumed that the cleaning property is improved.

In addition, when component A forms an acid and salt, particularly when the acid (component C) is further compounded in the detergent composition related to this disclosure to form an amine of component A and an acid of component C, The presence of a salt of an amine and an acid enhances the permeability to an oily component such as a flux and allows the effect to be exhibited in a shorter time.

However, the present disclosure is not limited to this mechanism.

[Component A: Amine]

The detergent compositions according to the present disclosure contain an amine (component A) or a salt thereof having a solubility of less than 10 g at 100 DEG C at 25 DEG C. [ In the present disclosure, the component A may be used alone or in combination of two or more.

The solubility of the component A in 100 g of water at 25 DEG C is less than 10 g, preferably 8 g or less, more preferably 5 g or less, still more preferably 2 g or less, from the viewpoints of cleaning property and liquid removability , More preferably 1 g or less, still more preferably 0.5 g or less, still more preferably 0.2 g or less, still more preferably 0.1 g or less, and from the same view, 0.0001 g or more is preferable, More preferably 0.001 g or more, and still more preferably 0.01 g or more.

The amine of the component A is at least one selected from the group consisting of primary amines, secondary amines and tertiary amines having a carbon number of 6 or more and 26 or less from the viewpoints of cleaning property and liquid removability. The number of carbon atoms of the component A is preferably 6 or more, preferably 7 or more, more preferably 8 or more from the viewpoints of cleaning property and liquid removability, and from the same viewpoint, 26 or less, preferably 18 or less, More preferably 10 or less. When the component A is in the form of a salt, the counter ion for forming the salt is not particularly limited, and for example, the acid of the component C can be mentioned.

The component A is preferably at least one selected from the compounds represented by the formula (I) from the viewpoints of cleaning property and liquid removability.

[Chemical Formula 1]

In the formula (I), R ¹ represents at least one kind selected from a linear or branched alkyl group having 5 to 18 carbon atoms and an alkenyl group having 5 to 18 carbon atoms, and R ² And R ³ are the same or different and represent at least one selected from a linear or branched alkyl group having 1 to 5 carbon atoms and a hydrogen atom, and the total number of carbon atoms of R ¹ , R ² and R ³ is 6 Or more.

In the formula (I), the number of carbon atoms of R ¹ is preferably 5 or more, preferably 6 or more, more preferably 7 or more, from the viewpoints of cleaning property and liquid removability, Is preferably 18 or less, more preferably 12 or less, more preferably 10 or less, and even more preferably 8 or less, from the viewpoint of the "suppression property".

In the formula (I), R ² and R ³ are each independently a linear or branched alkyl group having 1 to 5 carbon atoms and at least one member selected from a hydrogen atom , A straight chain alkyl group having 1 or 2 carbon atoms, and a hydrogen atom, more preferably a methyl group or a hydrogen atom, and more preferably a hydrogen atom.

In the formula (I), the total number of carbon atoms of R ¹ , R ² and R ³ is preferably 6 or more, preferably 7 or more, more preferably 8 or more, , It is preferably 26 or less, preferably 18 or less, more preferably 12 or less, and even more preferably 10 or less.

The salt of the component A includes at least one compound selected from the compound represented by the formula (I) and an acid salt from the viewpoints of cleaning property and liquid removability. The acid is not particularly limited so long as it forms a water-soluble salt with the component A, and examples thereof include the acid of the component C described later.

The content of the component A at the time of cleaning of the detergent composition according to the present disclosure is preferably 0.001% by mass or more, more preferably 0.01% by mass or more, more preferably 0.02% by mass or more from the viewpoints of cleaning property and liquid removability And is preferably 2.0% by mass or less, more preferably 1.0% by mass or less, still more preferably 0.7% by mass or less, further preferably 0.2% by mass or less from the viewpoints of cleaning property, liquid removing property, More preferably 0.15% by mass or less, still more preferably 0.1% by mass or less. When component A is a combination of two or more amines, the content of component A refers to the total content thereof.

In the present disclosure, the "content of each component at the time of cleaning of the cleaning composition" means the content of each component of the cleaning composition used in the cleaning process in one or more embodiments.

[Component B: Solvent]

The detergent compositions according to the present disclosure contain a solvent (component B) having a solubility of from 0.02 g to less than 10 g per 100 g of water at 25 占 폚. In the present disclosure, the component B may be used alone or in combination of two or more.

The solubility of the component B in water at 25 캜 is preferably not less than 0.02 g, more preferably not less than 0.05 g, more preferably not less than 0.1 g, more preferably not less than 0.2 g, from the viewpoints of cleaning property and liquid removability, , From the same viewpoint, less than 10 g, preferably 5 g or less, more preferably 3 g or less, and even more preferably 2 g or less.

As the component B, from the viewpoints of cleaning property and liquid removability, a solvent other than the component A having a solubility within the above range can be exemplified. For example, a glycol ether solvent and an alcohol solvent having a solubility within the above range are selected At least one kind selected from the group consisting of The glycol ether-based solvent is preferably at least one selected from the compounds represented by the following formula (II) from the viewpoints of cleaning property and liquid removability.

In the formula (II), R ⁴ represents a hydrocarbon group having 3 to 12 carbon atoms, EO represents an ethylene oxide group, m represents a number of 0 or more and 5 or less as an addition mole number of EO, PO represents a propylene oxide group , n is the number of added moles of PO in the range of 0 to 2, m + n? 1, and the addition form of EO and PO may be a block or a random, and the addition order of EO and PO is irrelevant.

In the formula (II), R ⁴ is preferably a hydrocarbon group of 3 to 12 carbon atoms, preferably a hydrocarbon group of 6 to 10 carbon atoms, more preferably a hydrocarbon group of 6 to 8 carbon atoms A hydrocarbon group is more preferred.

In the formula (II), (EO) _m (PO) _n may be composed of ethylene oxide groups alone, but may also be composed of ethylene oxide groups and propylene oxide groups. (EO) _m (PO) _n is composed of an ethylene oxide group and a propylene oxide group, the arrangement of EO and PO may be random or block. When the arrangement of EO and PO is a block, the number of blocks of EO and the number of blocks of PO may be one or more, respectively, provided that the average addition mole number falls within the above range. When the number of blocks composed of EO is two or more, the number of repetitions of EO in each block may be the same or different.

Specific examples of the component B include ethylene glycol mono 2-ethylhexyl ether (solubility: 0.20 g), diethylene glycol mono 2-ethylhexyl ether (solubility: 0.20 g), ethylene glycol monohexyl ether (Solubility: 1.40 g), diethylene glycol monohexyl ether (solubility: 1.40 g), propylene glycol monophenyl ether (phenoxypropanol, solubility: 0.20 g), dipropylene glycol monopropyl ether Butyl ether (solubility: 6.60 g), and combinations of two or more thereof. Ethylene glycol monohexyl ether (solubility: 0.20 g), ethylene glycol monohexyl ether (solubility: 1.00 g), diethylene glycol monohexyl ether (solubility: 1.40 g) and propylene (Solubility: 0.20 g) and ethylene glycol mono-2-ethylhexyl ether (solubility: 0.20 g) and diethylene glycol monohexyl ether (solubility: 1.40 g (Solubility: 0.20 g) and diethylene glycol monohexyl ether (solubility: 0.20 g) are more preferable, and ethylene glycol mono-2-ethylhexyl ether Solubility: 1.40 g) is more preferable, and ethylene glycol mono 2-ethylhexyl ether (solubility: 0.20 g) is even more preferable. The solubility in parentheses represents the solubility in 100 g of water at 25 ° C.

The content of the component B in the cleaning of the detergent composition according to the present disclosure is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and more preferably 1% by mass or more from the viewpoints of cleaning property and liquid removability , More preferably not less than 2 mass%, and from the same viewpoint, 20 mass% or less is preferable, 15 mass% or less is more preferable, 12 mass% or less is more preferable, and 10 mass% . When the component B is a combination of two or more solvents, the content of the component B refers to the total content thereof.

The ratio A / B of the content of the component A to the content of the component B in the detergent composition according to the present disclosure is preferably 0.001 or more, more preferably 0.002 or more, and more preferably 0.003 or more from the viewpoints of cleaning property and liquid removability And from the same viewpoint, it is preferably 0.1 or less, more preferably 0.09 or less, still more preferably 0.08 or less.

[Component C: Acid]

The detergent composition according to the present disclosure may further comprise an acid (Component C). Further, the detergent composition according to the present disclosure may be further blended with an acid (component C). In the present disclosure, the component C may be used alone or in combination of two or more.

As the component C, an acid which forms a salt with the component A is preferable from the viewpoints of cleansing property and liquid removability, and it is preferable that the component C contains 2 to 12 carbon atoms having 1 to 3 at least one group selected from a carboxyl group, a sulfonic acid group, a sulfuric acid group and a phosphoric acid group And formic acid are more preferable.

Specific examples of the component C include, for example, formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, enanthic acid, caprylic acid, 2-ethylhexanoic acid, pelargonic acid, capric acid, lauric acid , Malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, phthalic acid, isophthalic acid, terephthalic acid, glycolic acid, lactic acid, tartronic acid, hydroxybutyric acid, glycerin Examples of the organic acid include acid, malic acid, tartaric acid, citric acid, methanesulfonic acid, benzenesulfonic acid, p-toluenesulfonic acid, naphthalenesulfonic acid, laurylsulfuric acid ester, 2-aminoethylphosphonic acid, 1-hydroxyethylidene- There may be mentioned one or a combination of two or more selected from aminotri (methylenephosphonic acid), ethylenediaminetetra (methylenephosphonic acid) and diethylenetriaminepenta (methylenephosphonic acid), and from the viewpoints of cleaning property and liquid removability , Formic acid, acetic acid, More preferred are at least one member selected from the group consisting of acid, 2-ethylhexanoic acid, lactic acid, citric acid, p-toluenesulfonic acid and 1-hydroxyethylidene-1,1-diphosphonic acid, , 2-ethylhexanoic acid, citric acid, p-toluenesulfonic acid and 1-hydroxyethylidene-1,1-diphosphonic acid are more preferable, and a combination of at least one selected from formic acid, acetic acid, Toluenesulfonic acid and 1-hydroxyethylidene-1,1-diphosphonic acid are more preferable, and either one of acetic acid and p-toluenesulfonic acid is more preferable, and acetic acid is more preferable More preferable.

The content (or blending amount) of the component C at the time of cleaning the detergent composition according to the present disclosure is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, and more preferably 0.01% And more preferably not less than 2.0% by mass, more preferably not more than 1.0% by mass, further preferably not more than 0.7% by mass, from the viewpoints of cleaning property, liquid removability, By mass, more preferably 0.2% by mass or less, still more preferably 0.15% by mass or less, and even more preferably 0.1% by mass or less. When the component C is a combination of two or more acids, the content (or the compounding amount) of the component C refers to the total content (or the total amount) of the components.

The ratio A / C of the content of the component A to the content (or blending amount) of the component C in the detergent composition according to the present disclosure is preferably 0.1 or more, more preferably 0.2 or more from the viewpoint of cleaning property and liquid removability, More preferably 0.4 or more, and from the same viewpoint, 10 or less is preferable, 7 or less is more preferable, and 5 or less is more preferable.

[Component D: water]

The detergent composition according to the present disclosure contains water (component D). As the water of the component D, ion exchange water, RO water, distilled water, pure water and ultrapure water can be used. The content of water may be suitably set in accordance with the manner of use of the detergent composition according to the present disclosure.

The content of the component D in the cleaning of the detergent composition according to the present disclosure is preferably 70% by mass or more, more preferably 80% by mass or more, further preferably 85% by mass or more from the viewpoint of cleaning property, , From the same viewpoint, 99 mass% or less is preferable, 97 mass% or less is more preferable, and 95 mass% or less is more preferable.

[Optional ingredients]

The detergent composition according to the present disclosure may contain optional components in addition to the above-described components A to D, as long as they do not impair the effect of the present disclosure. Optional ingredients include, for example, nonionic surfactants; Aminocarboxylic acid salts such as hydroxyethylaminoacetic acid, hydroxyethylimino acetic acid and ethylenediaminetetraacetic acid; Preservative; Rust inhibitors; Bactericides; Antimicrobial agents; Antifoaming agents such as silicone; Antioxidants; Esters such as coconut fatty acid methyl ester and benzyl acetate; Hydrocarbon solvents; Alcohols; And the like, or a combination of two or more thereof.

The content of the optional components in the cleaning of the detergent composition according to the present disclosure is preferably 0 mass% or more and 2.0 mass% or less, more preferably 0 mass% or more and 1.5 mass% or less from the viewpoint of not hindering the effect of the present disclosure , More preferably 0 mass% or more and 1.3 mass% or less, and still more preferably 0 mass% or more and 1.0 mass% or less. When the detergent composition according to the present disclosure contains two or more optional ingredients, the content of the optional ingredients refers to the total content thereof.

[PH of detergent composition]

The pH at the time of cleaning of the detergent composition according to the present disclosure is preferably 12 or less, more preferably 9 or less, further preferably 8 or less, further preferably 7 or less, from the viewpoints of cleaning property and liquid removability, From the viewpoints of cleaning property, liquid removability and prevention of corrosion of the cleaning equipment, the value is preferably 4 or more, more preferably 4.5 or more, still more preferably 5 or more, and still more preferably 5.5 or more. In the present disclosure, the " pH at the time of cleaning " can be measured using a pH meter at the pH of the detergent composition at 25 DEG C (after dilution). Specifically, it can be measured by the method described in the examples.

Adjustment of the pH of the detergent composition according to the present disclosure may be effected, for example, by treatment with inorganic acids such as nitric acid, sulfuric acid and the like; An organic acid such as an oxycarboxylic acid, a polycarboxylic acid, an aminopolycarboxylic acid, and an amino acid; And their metal salts or ammonium salts, basic substances such as ammonia, sodium hydroxide, potassium hydroxide, and amines; And the like.

[Method for producing detergent composition]

The detergent compositions according to the present disclosure can be prepared by blending the component A, component B and component D, and optionally component C and optional components in a known manner. For example, the detergent composition according to the present disclosure may be composed of at least the component A, the component B and the component D in combination. Accordingly, this disclosure is directed to a method of making a detergent composition, comprising in one aspect, combining at least the component A, component B and component D. In the present disclosure, " blending " includes mixing component A, component B and component D, and optionally component C and optional components simultaneously or in any order. In the method of manufacturing the detergent composition according to the present disclosure, the blending amount of each component may be the same as the content of each component of the detergent composition related to the present disclosure described above.

The detergent composition according to the present disclosure may be prepared as a concentrate which reduces the amount of water of component D from the viewpoint of storage and transportation. The concentrate of the detergent composition is preferably a concentrate having a dilution factor of at least 3 times from the viewpoint of storage and transportation. From the viewpoint of storage stability, it is preferable that the concentrate is diluted at a dilution factor of 200 times or less. The concentrate of the detergent composition may be diluted with water so that the content of each component becomes the above-described content (that is, the content at the time of washing) at the time of use. In addition, the concentrate of the detergent composition may be used by adding the respective components separately at the time of use. In the present disclosure, the term " during use " or " during cleaning " of the concentrate of the detergent composition means a state in which the concentrate of the detergent composition is diluted.

[Purified water]

DETAILED DESCRIPTION OF THE INVENTION The detergent compositions in accordance with the present disclosure, in one or more embodiments, include cleaning, fluxing of screen plates after screen printing; Conductive pastes such as solder paste, silver paste, and copper paste; And the like can be used for cleaning the screen plate. Examples of the screen plate include a metal mask, a resin mask, an electroforming mask, and an emulsion mask.

Accordingly, this disclosure relates, in one aspect, to the use of a detergent composition in connection with the present disclosure for cleaning screen plates after screen printing. This disclosure also relates to the use of a detergent composition in accordance with the present disclosure for removing at least one of a flux and a solder paste from a screen plate in another aspect.

[Cleaning method]

The present disclosure relates in one aspect to a cleaning method of a screen plate (hereinafter referred to as " cleaning method ") including a step of cleaning a material to be cleaned using the cleaning composition according to the present disclosure Quot; cleaning method " When the detergent composition according to the present disclosure is a concentrate, the cleaning method according to the present disclosure may further comprise diluting the concentrate of the detergent composition. The object to be cleaned includes the above-mentioned object to be cleaned. The cleaning process may include, in one or more embodiments, contacting the article to be cleaned with a detergent composition according to the present disclosure. Examples of the method of cleaning the object to be cleaned using the cleaning composition related to the present disclosure include a method in which the object to be cleaned is contacted with the object to be cleaned by dipping the object to be cleaned in a cleaning bath, A method in which a cleaning agent composition is brought into contact with a cleaning material, and a method in which a cleaning agent composition is injected in a spray form to contact the object to be cleaned.

The cleaning method according to the present disclosure may further include a step of drying the screen plate after the cleaning without rinsing. As a result, it is possible to shorten the time required for cleaning and drying the screen plate, to efficiently obtain a screen plate having excellent cleanliness, and to improve the productivity of electronic parts such as high-quality printed boards and ceramic substrates.

It is preferred that the cleaning method according to the present disclosure is irradiated with ultrasonic waves upon contact of the cleaning agent composition and the object to be cleaned in connection with the present disclosure, in view of the cleaning power of the cleaning agent composition related to the present disclosure. The irradiation condition of the ultrasonic wave can be set, for example, at 20 to 2000 kHz.

[Kit]

The present disclosure relates in one aspect to a kit for making a detergent composition according to the present disclosure wherein at least one of the components A, B and D constituting the detergent composition according to the present disclosure comprises the other component (Hereinafter also referred to as a " kit relating to the present disclosure ") stored in a state not mixed with a kit. According to the present disclosure, it is possible to provide a kit by which a detergent composition excellent in cleansing property and liquid removability can be obtained.

As a kit relating to the present disclosure, for example, a solution (first solution) containing component B and a solution (second solution) containing one or more components A, C and D are mixed with each other (Two-part detergent composition) in which they are stored in a state in which they are not mixed and are mixed at the time of use. The above-mentioned optional components may be mixed with each of the first liquid and the second liquid as necessary.

The present disclosure also relates to the following detergent compositions, cleaning methods, manufacturing methods and kits.

(Component A) or a salt thereof having a solubility of less than 10 g in 100 g of water at 25 DEG C, a solvent (component B) having a solubility of 0.02 g or more and less than 10 g per 100 g of water at 25 DEG C (component B) Wherein the component A is at least one selected from the group consisting of primary amines, secondary amines and tertiary amines having 6 to 26 carbon atoms.

≪ 2 > A cleaning composition for a screen plate according to < 1 >, wherein the pH is 5 or more and 12 or less.

<3> The detergent composition for a screen plate according to <1> or <2>, wherein the pH is preferably 12 or less, more preferably 9 or less, further preferably 8 or less, and still more preferably 7 or less.

<4> The detergent composition for a screen plate according to any one of <1> to <3>, wherein the pH is preferably 4 or higher, more preferably 4.5 or higher, even more preferably 5 or higher, and still more preferably 5.5 or higher.

<5> The solubility of the component A in 100 g of water at 25 ° C. is less than 10 g, preferably 8 g or less, more preferably 5 g or less, still more preferably 2 g or less, and 1 g or less The detergent composition for a screen plate according to any one of &lt; 1 &gt; to &lt; 4 &gt;, wherein more preferably 0.5 g or less, still more preferably 0.2 g or less, still more preferably 0.1 g or less.

<6> The solubility of the component A in 100 g of water at 25 ° C. is preferably 0.0001 g or more, more preferably 0.001 g or more, and still more preferably 0.01 g or more, in any one of <1> to <5> &Lt; / RTI &gt;

<7> The detergent composition for a screen plate according to any one of <1> to <6>, wherein the carbon number of the component A is 6 or more, preferably 7 or more, and more preferably 8 or more.

<8> The detergent composition for a screen plate according to any one of <1> to <7>, wherein the number of carbon atoms of the component A is 26 or less, preferably 18 or less, more preferably 12 or less, and further preferably 10 or less.

<9> The detergent composition for a screen plate according to any one of <1> to <8>, wherein the component A is at least one selected from compounds represented by the following formula (I).

(2)

In the formula (I), R ¹ represents at least one member selected from a linear or branched alkyl group having 5 to 18 carbon atoms and an alkenyl group having 5 to 18 carbon atoms, R ² and R ³ are the same or different and represent at least one selected from a linear or branched alkyl group having 1 to 5 carbon atoms and a hydrogen atom and the total carbon number of R ¹ , R ² and R ³ is 6 or more and 26 or less.

&Lt; 10 &gt; A salt of component A, wherein at least one compound selected from the group consisting of compounds represented by the formula (I) and at least one compound having 1 to 3 carbon atoms And at least one compound selected from formic acid and formic acid.

The content of the component A at the time of cleaning the detergent composition is preferably 0.001% by mass or more, more preferably 0.01% by mass or more, and still more preferably 0.02% by mass or more. A detergent composition for a screen plate according to any one of the preceding claims.

The content of the component A at the time of cleaning the cleaning agent composition is preferably 2.0% by mass or less, more preferably 1.0% by mass or less, still more preferably 0.7% by mass or less, further preferably 0.2% , More preferably 0.15 mass% or less, and still more preferably 0.1 mass% or less, based on the total amount of the detergent composition for a screen plate according to any one of <1> to <11>.

<13> The solubility of the component B in water at 25 ° C. is not less than 0.02 g, preferably not less than 0.05 g, more preferably not less than 0.1 g, and more preferably not less than 0.2 g. A detergent composition for a screen plate according to any one of the preceding claims.

<14> The solubility of the component B in water at 25 ° C. is less than 10 g, preferably not more than 5 g, more preferably not more than 3 g, more preferably not more than 2 g, A detergent composition for a screen plate according to any one of the preceding claims.

<15> The detergent composition for a screen plate according to any one of <1> to <14>, wherein the component B is at least one compound selected from compounds represented by the following formula (II).

In the formula (II), R ⁴ represents a hydrocarbon group having 3 to 12 carbon atoms, EO represents an ethylene oxide group, m represents a number of 0 or more and 5 or less as an addition mole number of EO, and PO represents a propylene oxide group N is the number of moles of PO added in the range of 0 to 2, m + n? 1, and the addition form of EO and PO may be a block or random, and the addition order of EO and PO is not related.

R ⁴ in the formula (II) is a hydrocarbon group having 3 to 12 carbon atoms, preferably a hydrocarbon group having 6 to 10 carbon atoms and more preferably a hydrocarbon group having 6 to 8 carbon atoms. &Lt; / RTI &gt;

The content of the component B at the time of cleaning of the detergent composition is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, more preferably 1% by mass or more, and more preferably 2% The detergent composition for a screen plate according to any one of <1> to <16>, which is preferable.

The content of the component B at the time of cleaning of the detergent composition is preferably 20 mass% or less, more preferably 15 mass% or less, further preferably 12 mass% or less, further preferably 10 mass% The detergent composition for a screen plate according to any one of &lt; 1 &gt; to &lt; 17 &gt;, which is preferable.

The ratio A / B of the content of the component A to the content of the component B in the detergent composition is preferably 0.001 or more, more preferably 0.002 or more, still more preferably 0.003 or more, A detergent composition for a screen plate according to any one of the preceding claims.

<20> The ratio A / B of the content of the component A to the content of the component B in the detergent composition is preferably 0.1 or less, more preferably 0.09 or less, still more preferably 0.08 or less, A detergent composition for a screen plate according to any one of the preceding claims.

<21> A composition containing at least one compound selected from the group consisting of a compound having 2 to 12 carbon atoms and at least one group selected from the group consisting of a carboxyl group, a sulfonic acid group, a sulfuric acid group and a phosphoric acid group, and formic acid (component C) A detergent composition for a screen plate according to any one of <1> to <20>.

The content (or blending amount) of the component C at the time of cleaning of the detergent composition is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, still more preferably 0.01% &Lt; / RTI &gt;

The content (or blending amount) of the component C at the time of cleaning of the detergent composition is preferably 2.0 mass% or less, more preferably 1.0 mass% or less, still more preferably 0.7 mass% or less, more preferably 0.2 mass% Or less, still more preferably 0.15 mass% or less, further preferably 0.1 mass% or less, based on the total amount of the cleaning composition.

The ratio A / C of the content of the component A to the content (or blending amount) of the component C in the detergent composition is preferably 0.1 or more, more preferably 0.2 or more, and still more preferably 0.4 or more. The cleaning composition for a screen plate according to any one of &lt; 23 &gt;

The ratio A / C of the content of the component A to the content (or blending amount) of the component C in the detergent composition is preferably 10 or less, more preferably 7 or less, still more preferably 5 or less. The cleaning composition for a screen plate according to any one of the above <24>.

The content of the component D at the time of cleaning the cleaning composition is preferably 70% by mass or more, more preferably 80% by mass or more, and still more preferably 85% by mass or more. A detergent composition for a screen plate according to any one of the preceding claims.

The content of the component D at the time of cleaning the cleaning agent composition is preferably 99% by mass or less, more preferably 97% by mass or less, still more preferably 95% by mass or less, A detergent composition for a screen plate according to any one of the preceding claims.

<28> A method of cleaning a screen plate, comprising the step of cleaning the object to be cleaned using the cleaning composition according to any one of <1> to <27>, wherein the object to be cleaned is a screen plate after screen printing.

<29> A cleaning method of a screen plate according to <28>, which comprises a step of drying the screen plate after the cleaning without rinsing.

<30> A kit for producing a detergent composition according to any one of <1> to <27>, wherein at least one of the components A, B and D is not mixed with other components .

<31> Use of the detergent composition according to any one of <1> to <27> for cleaning a screen plate after screen printing.

<32> Use of the detergent composition according to any one of <1> to <27> for removing at least one of the flux and the solder paste from the screen plate.

Example

Hereinafter, the present disclosure will be described in detail by way of examples, but the present disclosure is not limited by these examples.

1. Preparation of detergent composition (Examples 1 to 26 and Comparative Examples 1 to 4)

Each component was blended so as to have the composition and content (mass%, effective content) shown in Table 1 below to obtain the cleaning composition of Examples 1 to 26 and Comparative Examples 1 to 4. The pH is the pH of the detergent composition at 25 占 폚, which is measured using a pH meter (HM-30G, Toa Radio Co., Ltd.), and after 40 minutes after immersing the electrode in the detergent composition.

The following were used as components of the detergent composition.

&Lt; Component A: Amine &

N-hexylamine (manufactured by Wako Pure Chemical Industries, Ltd.)

N-octylamine (manufactured by Tokyo Chemical Industry Co., Ltd.)

N-Dodecylamine (dodecylamine, manufactured by Tokyo Chemical Industry Co., Ltd.)

N-stearylamine (stearylamine manufactured by Tokyo Chemical Industry Co., Ltd.)

N-methylhexylamine (manufactured by Wako Pure Chemical Industries, Ltd.)

N, N-Dimethylhexylamine (manufactured by Wako Pure Chemical Industries, Ltd.)

<Non-Component A: Amine>

N-butylamine (manufactured by Wako Pure Chemical Industries, Ltd.)

Polyoxyethylene (2 mol) laurylamine (BLAUNON L-202 manufactured by Aoki Kasei Kogyo Co., Ltd.)

&Lt; Component B: Solvent (glycol ether) &gt;

Ethylene glycol mono 2-ethylhexyl ether (2 ethylhexyl glycol (EHG), manufactured by Nippon Emulsifier Co., Ltd.)

Diethylene glycol monohexyl ether (hexyldiglycol (HeDG), manufactured by Nippon Emulsifier Co., Ltd.)

Phenoxypropanol (propylene glycol monophenyl ether) (phenylpropylene glycol (PhFG), manufactured by Nippon Petrochemical Co., Ltd.)

Ethylene glycol monohexyl ether (hexyl glycol (HeG), manufactured by Nippon Sanso Co., Ltd.)

Diethylene glycol mono 2-ethylhexyl ether (2 ethylhexyldiglycol (EHDG), manufactured by Nippon Emulsifier Co., Ltd.)

Dipropylene glycol monopropyl ether (propyl propylene diglycol (PFDG), manufactured by Nippon Emulsifier Co., Ltd.)

<Non-Component B: Solvent>

Diethylene glycol monobutyl ether (butyl diglycol (BDG), manufactured by Nippon Emulsifier Co., Ltd.)

<Component C: Acid>

Acetic acid (manufactured by Kanto Chemical Co., Ltd., Shika 1 grade)

P-toluenesulfonic acid (p-toluenesulfonic acid monohydrate manufactured by Wako Pure Chemical Industries, Ltd.)

1-Hydroxyethylidene-1,1-diphosphonic acid (manufactured by Italmatch Chemicals, Day Quest 2010, 60% aqueous solution)

· Formic acid (manufactured by Asahi Chemical Industry Co., Ltd., formic acid: 88%)

· 2-Ethylhexanoic acid (manufactured by Wako Pure Chemical Industries, Ltd.)

Citric acid (manufactured by Wako Pure Chemical Industries, Ltd., citric acid (anhydrous))

<Component D: water>

· Pure water of 1 μS / cm or less manufactured by pure apparatus G-10DSTSET manufactured by ORGANO CORPORATION

<Others>

Potassium hydroxide (manufactured by Kanto Chemical Co., Ltd., Shika Express, solid content: 48 mass%)

[Solubility of amines and solvents in water]

500 g of water is added to a 1 l glass beaker and the mixture is incubated at 25 ° C in a thermostat at 25 ° C while stirring at a rotation speed of 100 rpm using a rotor (fluororesin (PTFE), 8 mm x 50 mm). 0.1 g of various amines or solvents is added, and uniformly transparent state is visually observed. Add 0.1 g of various amines or solvents until uniform and not transparent, and measure the solubility in water.

When 50 g of the amine or the solvent is added and the solution is uniformly transparent, the measurement is completed at that point, and the solubility in 100 g of water at 25 캜 is judged to be 10 g or more. When 0.1 g of an amine or a solvent is added and the homogeneity is not transparent, the solubility in 100 g of water at 25 캜 is judged to be less than 0.02 g.

2. Evaluation of detergent composition

The following evaluations were carried out using the cleaning compositions of Examples 1 to 26 and Comparative Examples 1 to 4.

[stability]

100 g of each detergent composition was prepared in a 100 ml glass beaker, and using a rotor (fluororesin (PTFE), 8 mm x 25 mm) at 25 DEG C, the state of the liquid under stirring at a revolution of 100 rpm Is visually observed, and the stability is evaluated by the following evaluation criteria. The results are shown in Table 1. When phase separation is not confirmed, it can be evaluated that the stability is excellent.

<Evaluation Criteria>

A: No phase separation

B: phase separation

[Cleaning property test method]

(MB-T100, manufactured by Senju Metal Industries Co., Ltd.) was applied to a stainless steel wire netting (500 mesh), the opening of the stainless steel wire netting was filled with flux, the excess flux was removed by squeegee, , And cut into 20 mm x 20 mm to prepare a test piece for evaluation. Using this test piece, the cleaning property of the cleaning composition is evaluated in the following order.

50 g of each detergent composition is added to a 100 ml glass beaker and kept warm in a water bath at 25 占 폚. Next, the test piece is held with tweezers, immersed in the cleaning composition, and irradiated with ultrasonic waves (104 kHz, 50 W) for 15 minutes. After cleaning, the test pieces are dried for 15 minutes with hot air at 60 ° C without rinsing.

[Evaluation method of cleaning property]

Using an optical microscope digital microscope VHX-2000 (manufactured by KYENS CORPORATION), the presence or absence of flux residue was visually observed in the mesh opening of the test piece after drying, and the ratio of the residue of the openings in which the flux residue remained was calculated by the following equation And the cleaning property is evaluated. The results are shown in Table 1. The smaller the value, the better the cleanability.

Residue ratio (%) = Number of openings with residue ÷ Number of openings in total × 100

[Evaluation of liquid removal performance]

(50 mm in the height direction) with a nickel plate (50 mm x 25 mm x 0.5 mm, manufactured by Taira Co., Ltd.) as a test piece, 0.04 ml of the cleaning composition was dropped on the upper surface of the vertical surface, And the liquid removal performance is evaluated. The results are shown in Table 1. The smaller the value, the better the liquid removal performance and the faster the drying.

However,

50 g of each detergent composition was added to a 110 ml screw tube bottle, kept at 25 占 폚, shaken 30 times up and down, and then allowed to stand still to measure the height of air bubbles after 10 seconds. The results are shown in Table 1. The smaller the value, the higher the effect of inhibiting bubble formation.

As shown in Table 1, the detergent compositions of Examples 1 to 26 containing predetermined amines (component A), a predetermined solvent (component B) and water (component D) , The cleaning property and the liquid removal performance were excellent.

Industrial availability

The detergent composition of the present disclosure is useful as a detergent composition for a screen plate after screen printing to shorten the time required for cleaning and drying and efficiently obtain a screen plate having high cleanliness and also to provide a high quality print substrate, It is possible to improve the production efficiency of the electronic parts of the electronic parts.

Claims (10)

An amine (component A) or a salt thereof having a solubility in water of 100 g at 25 DEG C of less than 10 g, a solvent (component B) having a solubility of 0.02 g or more and less than 10 g in 100 g of water at 25 DEG C (component B)
Wherein the component A is at least one selected from the group consisting of primary amines, secondary amines and tertiary amines having 6 to 26 carbon atoms. The method according to claim 1,
A cleaning composition for a screen plate having a pH of 5 or more and 12 or less. 3. The method according to claim 1 or 2,
Wherein the component A is at least one selected from compounds represented by the following formula (I).
[Chemical Formula 1]

In the formula (I), R ¹ represents at least one member selected from a linear or branched alkyl group having 5 to 18 carbon atoms and an alkenyl group having 5 to 18 carbon atoms, R ² and R ³ are the same or different and represent at least one selected from a linear or branched alkyl group having 1 to 5 carbon atoms and a hydrogen atom and the total carbon number of R ¹ , R ² and R ³ is 6 or more and 26 or less. The method of claim 3,
Wherein the salt of component A contains at least one compound selected from the compounds represented by formula (I) and at least one compound having 1 to 3 carbon atoms, at least one group selected from a carboxyl group, a sulfonic acid group, a sulfuric acid group and a phosphoric acid group, &Lt; / RTI &gt; and at least one compound selected from formic acid. 5. The method according to any one of claims 1 to 4,
Wherein the component B is at least one compound selected from compounds represented by the following formula (II).

In the formula (II), R ⁴ represents a hydrocarbon group having 3 to 12 carbon atoms, EO represents an ethylene oxide group, m represents a number of 0 or more and 5 or less as an addition mole number of EO, PO represents a propylene oxide group , n is the number of added moles of PO in the range of 0 to 2, m + n? 1, and the addition form of EO and PO may be a block or a random, and the addition order of EO and PO is irrelevant. 6. The method according to any one of claims 1 to 5,
A compound having at least one group selected from the group consisting of a carboxyl group, a sulfonic acid group, a sulfuric acid group and a phosphoric acid group having 1 to 3 carbon atoms and 2 to 12 carbon atoms and at least one acid selected from formic acid (component C) Detergent composition. A cleaning method comprising the step of cleaning an object to be cleaned using the cleaning composition according to any one of claims 1 to 6,
Wherein the object to be cleaned is a screen plate after screen printing. 8. The method of claim 7,
And a step of drying the screen plate after the cleaning without rinsing. Use of the detergent composition according to any one of claims 1 to 6 for cleaning screen plates after screen printing. Use of the detergent composition according to any one of claims 1 to 6 for removing at least one of the flux and the solder paste from the screen plate.