CA2201250A1 - Stain remover - Google Patents
Stain removerInfo
- Publication number
- CA2201250A1 CA2201250A1 CA 2201250 CA2201250A CA2201250A1 CA 2201250 A1 CA2201250 A1 CA 2201250A1 CA 2201250 CA2201250 CA 2201250 CA 2201250 A CA2201250 A CA 2201250A CA 2201250 A1 CA2201250 A1 CA 2201250A1
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- CA
- Canada
- Prior art keywords
- solution
- weight
- cleaning
- stains
- mixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/046—Salts
-
- 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
- C11D10/00—Compositions of detergents, not provided for by one single preceding group
- C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
- C11D10/045—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on non-ionic surface-active compounds and soap
-
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/395—Bleaching agents
- C11D3/3956—Liquid compositions
-
- 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
A solution for cleaning stains comprising: sodium chloride; sodium hypochloride; soap.
Description
220 ~250 FIELD OF INVENTION
This invention relates to solutions for cleaning stains and particularly to a solution for cleaning "yellowed stains".
Back~round of the Invention Cleaning solutions have heretofore been produced and utilized in order to remove fabric stains. Pre-spotting laundry compositions are generally compositions which may be applied to the stained area.
These pre-spotting compositions may either be based primarily upon water or based primarily upon solvents. The aqueous based pre-spotting compositions may be used in trigger spray bottles for application directly to the stain area. The aqueous based pre-spotting compositions include stain removal characteristics against water borne stains such as grape juice, chocolate and the like.
On the other hand solvent based pre-spotting compositions may be applied by aerosol. Solvent based pre-spotting compositions are effective in removing oil-borne stains such as fat, spaghetti sauce, grease, motor oil and the like.
For example, U.S. Patent No. 4,595,527 relates to a pre-spotting composition comprising a chelating agent, at least one nonionic surfactant and water.
Moreover, U.S. Patent No. 3,679,609 relates to a concentrate composition made up of lower alcohols, a selected glycol, methyl Cellosolv, ammonia, higher alcohols and ethers.
Moreover, U.S. Patent No. 5,269,958 relates to a self-pressurized spot dry cleaning composition which contains a combination of dimethyl ether, water, cosolvent for the dimethyl ether and water and a particulate absorbent capable of absorbing a stain from the fabric unto which the composition is sprayed such as fumed or pyrogenic silica, and composition of dimethoxymethane.
~ 2 0 1 2 5 0 Furthermore, U.S. Patent No. 171,912 relates to a cleaning fluid consisting of saponified oils and fatty acid, acetone, vegetable oils, and hydro-carbon solvents mixed to constitute a new composition of matter.
Moreover, it is not uncommon for garments to become stained and particulary to exhibit a yellow stain.
It is an object of this invention to provide an improved solution for cleaning stains and in particular a yellow stain removing solution and method for producing same.
It is a further object of this invention to provide a solution that effectively removes yellow stains from a variety of fabrics.
It is an aspect of this invention to provide a solution for cleaning stains comprising: sodium chloride; sodium hypochloride and soap.
It is another aspect of this invention to provide a stain removing solution which includes between 20 to 40 percent by weight of soap and between 80 to 60% by weight of a mixture of NaCl, NaClO and H20.
It is a further aspect of this invention to provide a stain removing solution having by weight percentage NaCl 5.04%; NaClO 2.45%; H20 87.51%; a blend of homologues from nonylphenoxypoly (ethyleneoxy) ethanol components 2.70% and oelic acid .36%.
Description of the Invention First Mixture The cleaning solution to be described herein can be used to effectively remove stains whether such stains are water borne or oil borne. In particular, the cleaning solution may be utilized to effectively remove ketchup, ink, oil, blood, mustard, stains and the like from a variety of fabrics without affecting the fabric. For example, the cleaning solution to ~20 1250 be described herein can be used to remove water or oil borne stains from silk, cotton, wool, denim, carpet and any other fabric.
The cleaning solution comprises dry cleaning solvent, soap, caustic soda, ammonia, and oil.
In particular, the dry cleaning solvent consists of commercially available dry cleaning solutions such as volatile organic dry cleaning solvents. Suitable dry cleaning solvents can include those commonly referred to as chlorinated solvents and hydro-carbon solvents. Examples of suitable chlorinated solvents include perchlorethlene, trichloroethylene, carbon tetrachloride to name a few. Specific examples of suitable hydro-carbon solvents include aromatic hydro-carbons such as benzene, toluene, xylene or mixtures thereof. The soap utilized herein can consist of a variety of commonly used soaps or detergents such as available under the trade-mark Ivory or as sold by Dow Brands Canada Inc., under the trade-mark Spray and Wash. Other soaps and detergents may also effectively be used.
Oils which are used in producing the cleaning solution generally comprise vegetable oils which may be selected from the group of olive oil, peanut oil, corn oil and the like. The caustic soda utilized herein consists of sodium hydroxide or the like which is commercially available. Moreover, the ammonia utilized herein is available commercially.
More particularly the cleaning solution or laundry pre-spotting composition consists of mixing between 85 to 55% by weight of the dry cleaning solution between 10 to 30% by weight of soap with the remainder between 5 to 15% by weight consisting of caustic soda, ammonia and oil. In one particular embodiment approximately 70% by weight of dry cleaning solvent is mixed with approximately 20% by weight of soap and approximately 10%
by weight of caustic soda, ammonia and oil. In a further embodiment, the cleaning solution comprises 75 % by weight dry cleaning solution; 21.25 % soap or surfactant, 1.25 %
ammonia, with remainder being 0.83% water, 0.01% caustic soda and 1.66% by weight oil.
' 220 ~250 More specifically in one embodiment one starts off with producing a mixture of caustic soda, water and oil. The caustic soda used comprises of powder which is mixtured with water in the following proportions: water 33 % (i.e. 500 mil = 440 gm) to caustic soda 0.23% (i.e. 3 gm) and oil 67% (1000 ml = 880 gm). This makes a solution of 1500 ml weighing approximately 1323 gm. Then approximately 10 ml is obtained from the solution of water, caustic soda and oil and mixed with 5 ml of ammonia (4.4g), 85 ml of soap (74.8gm) and 100 ml of dry cleaning solvent (88 gm) to obtain the following:
Solution of water }
caustic soda }
oil } lOml8.8gm 5%
Ammonia 5ml 4.4gm 2.5%
Soap 85ml74.8gm 42.5%
Dry cleaning solution lOOml 88~m 50.0%
200ml176gm 100.0%
The ammonia used comprises an ammonia solution as sold by Regal Sales Company from Toronto, Canada under the designation UN2672.
The laundry pre-spotting composition is mixed in the ratios referred to above in an appropriate container which is tightly sealed and shaken. In one embodiment, the solution is tightly sealed and shaken and allowed to stand so as to produce a solution which separates into two levels. The upper lighter level or solution is removed and the heavier separated solution at the bottom is utilized as the stain remover. More particularly, in another embodiment the mixture may be tightly sealed and shaken approximately twice a day for approximately 30 minutes. This ~h~king can occur for five days after which the mixed solution is allowed to stand for an appropriate period of time within which to allow the liquid to separate. In particular, in one embodiment after two days the mixed solution can separate and the lighter liquid on the top removed while the heavier liquid on the bottom is utilized as the stain remover. However, such separation can effectively take place over a shorter period of time.
~20 112S0 The pre-spotting composition rem~ining at the bottom may then be shaken before use.
In particular, the pre-spotting material may be applied to the stain to be removed by a variety of means including spraying or the like or just applying the cleaning solution and rubbing the pre-spotting composition into the stain (using a rubber glove). A brush may be used to gently rub the pre-spotting composition into the stain depending on the type of fabric. Leave the first mixture for a couple of minutes. For tough stains, apply more mixture to the stain and leave it for a few minutes and rub the stain gently again. When finished with rubbing, introduce the garment into a dry cleaning machine or wet washing machine with other clothes. The pre-spotting composition referred to herein may be utilized on a variety of fabrics safely and effectively such as silk, cotton, denim, carpet or the like. It has been found that by rubbing in the pre-spotting composition into the stain there is minim~l if any running of colours found within the fabric.
Example 1 In one embodiment the pre-spotting composition rem~ining at the bottom has the following composition:
Dry Cleaning Solution 70% by weight Soap 20% by weight Caustic soda }
Water }
Ammonia }
Oil } 10% by weight The dry cleaning solution comprises perchlorethylene.
Example 2 In another embodiment the pre-spotting composition comprises a solution having a pH of 10.91 and specific gravity of 1.454 (25~C/25~C) with the following composition:
perchlorethylene 75 % by weight surfactant 21.25% by weight ammonia 1.25% by weight 220 ~2~0 Solution A water 0.83 % by weight - caustic 0.01% by weight oil (vegetable) 1.66% by weight 100%
In example 2, the surfactant or soap consists of the following on a weight percent basis, namely:
Volatile component 87.3 - water 83.8 - volatile organic remainder solvent such as alcohol 87.3 %
Non volatile residue 12.7 %
- surfactants 10.6%
- non volatile residue 2.1 %
such as salts/alkali 12.7 %
Accordingly, the major component of the soap or surfactant consists of volatile component accounting for 87.3 % by weight and the non-volatile residue accounting for 12.7 %. The major component of the volatile component is water accounting for 83.8 %.
The surfactant is nonionic which consists of:
1. 9% by weight - a blend of homologues from nonylphenoxypoly (ethyleneoxy) ethanol components (such as lgepal Co-530;) 2. 1.2 % by weight - oelic acid The balance of the surfactant mixture is attributed to cationic species, such as amines or inorganic compounds which help to dissolve and stabilize a fatty acid as its salt.
The nonylphenoxypoly (ethyleneoxy) ethanol in the product is a blend of oil soluble and a highly water soluble homologue. Oil stains are penetrated and lifted by oleic acid - 22 tl I Z 5 รป
while the oil soluble surfactant assists in both stain removal as well as emulsification of the oleic acid in an aqueous medium.
Therefore in example 2 the pre-spotting composition has the following composition:
perchlorethylene 75 .00%
water 19.59%
monylphenoxypoly (ethyleneoxy) ethanol product 1.90%
oleic acid .25%
ammonia 1.25%
water 0. 83 %
caustic 0.01 %
Oil (vegetable) 1.66%
trace elements remainder 100.00%
The total weight of water in the above Illixlure is 19.59% by weight.
The pre-spotting composition referred to herein may be safely and effectively used to remove ketchup, ink, oil, blood, mustard stains and the like whether for silks, cottons, wool or denim.
Moreover, the pre-spotting composition utilized herein on the fabrics above may then be safely and effectively added to a washing machine utili7ing hot or cold water or in dry cleaning procedures. Dry cleaning procedures normally utilized for fabrics which tend to shrink upon application of water such as silk, wool or the like.
Moreover, the fabrics which have the pre-spotting composition on the stains may then be thrown in with other clothes which are either being dry cleaned or washed in the washing a2~ ~25~
machine. Furthermore, the pre-spotting composition may be left on the fabric stain for a short period of time such as for example five minutes and thereafter the fabric may be added to the dry cleaning or water cleaning.
It has been found that the stain will effectively disappear from the fabric referred to above. In particular, the cleaning solution effectively removes stains from high quality fabrics such as silk or the like without running of fabric colours or destroying the fabric.
Furthermore, the pre-spotting composition described herein may be utili_ed for up to a year if the container cont~ining the cleaning solution is tightly sealed otherwise the solvent could evaporate and decrease the effectiveness of the cleaning solution. If the container is accidentally left open the cleaning solution could still effectively be used by adding approximately 15% by volume of dry cleaning solvent.
We caution that the first mixture may not work on old grease stains already processed with other cleaning chemicals. Furthermore, one should presume that the stain is dry before using the first mixture; i.e. do not put any other solution or even water on the stain. In other words, do not use any other chemicals with the first mixture as it might cause unknown chemical reactions and damage the fabrics.
Second Mixture Cleanin~ Stains It has also been found that a novel solution for cleaning stains and particularly the yellowish stains located in the under arm portions of a garment such as a shirt or blouse may be removed by utili7ing a solution which comprises of approximately 70% by volume of the solution to be described hereinbelow to be added with approximately 30% by volume of the soap or surfactant referred to above. The second mixture does not work with rust stains but with the normal yellow stains that are exhibited in the underarms or the like. The second mixture may not work on old stains already processed with other cleaning chemicals.
~20 ~250 We caution that the second mixture never be used above as it may damage fabric and should always be used with the first mixture.
In particular one can prepare the solution for cleaning yellowed stains by utili7in~ approximately 70% of the mixture of:
pH 12.2 Solids % by Mass Conce~ lion Chemical (mg/L) or ppm Formula Total 10.7 106,840 Inorganic 7.2 71,892 NaCl Organic 3.5 34,947 NaClO
Liquid % by Mass Conc~"llalion (mg/L) or ppm Water 89.1 - H2O
Organic % by Mass Concentration Chemicals (mg/L) or ppm Acetone ~ 1 ~ 5'~~~3 C3H6O
Chloroform ~ 1 ~ 8,0004 CHCl3 It should be noted that the total percentage adds up to 100%. Moreover, the relative concentrations referred to above represent one embodiment of the invention and it has been found that the relative concentrations could be varied plus or minus 10%
(so long as the total added up to 100%) and the mixture would still be effective.
Moreover, trace elements of a trichlorinated ion and tetrachlorinated ion were found.
In particular as can be seen from above, the total solids content of the solution comprise approximately 10.7% by mass of approximately 7.2% inorganic solids, namely NaCl and approximately 3.5% of organic solids, namely NaClO.
.22~ ~25~
Moreover, approximately 89.1% by mass of water was found.
Furthermore trace elements of acetone and chloroform having the chemical formulaoutlined above were also included. Furthermore as outlined above trace elements of tetrachlorinated ions and trichlorinated ions having a mass less than 1% by mass were also located. However, such concentrations of the trichlorinated and tetrachlorinated ions were in much smaller amounts than acetone and chloroform and it is believed that such ions do not form the functional group of the cleaning solution and may be obtained as a result of a small amount of fragrance found in the solution.
The standard indicator paper showed that the above-identified solution had a pH of approximately 12.2. After a few minutes the pH changed to a little less than 12.2 and it was probably due to the oxidation of the colour pigments in the indicator paper and not an actual pH change in the solution. Commercial products like Javex (a trademark) show similar results.
It is believed that the main oxidizing component of these products is NaC10 which can be prepared by bubbling chlorine gas into solution of NaCOH as shown in the following:
Cl2 + 20H- ~ Cl- + ClO- + H20 where Cl- is chloride and C10- is hypochloride. Hypochloride is a very powerful oxidizing agent.
Accordingly, an improved cleaning agent for removing yellowed stains is produced by mixing approximately 70% of the solution cont~ining the NaCl and NaC10 with approximately 30% of the soap or surfactant previously described under the heading "First Mixture" and cont~3ining on a weight percentage basis:
water 83 . 8 non-volatile residue such as salts/alkali 2.1 volatile organic solvents such as alcohol 3.5 ~2~ ~25Q
surfactants 10.6 In particular, these surfactants are:
9% a blend of homologues from nonlphenoxypoly (ethyleneoxy) ethanol components (such as lgepal Co-530) 1.2% oelic acid remainder trace elements Therefore by adding approximately 70% of mixture 2 to approximately 30% of the surfactant one obtains the following solution:
NaCl 5.04%
NaClO 2.45 %
H2O 62.37%
Acetone ~ .07 %
Chloroform ~ .07 %
H2O 25.14%
a blend of .............. 2.70%
oelic acid .36%
non-volatile residue .63%
volatile organic solvents 1.05%
trace elements .12%
The total water content is 87.51%
Moreover, it has been found that an acceptable yellow stain removing solution can be made by including between 60% and 80% of the mixture cont~ining NaCl and NaClO (ie. under the heading of "Second Mixture") with 20% to 40% of by volume of the mixture cont~ining the soap (ie. under the heading "First Mixture").
22~ ~25Q
The method of removing the yellow stains from the underarm portions of a garment shall now be described. The steps of removing such yellow stains consists of:
(i) utili7:ing the solution which is described under the heading of "First Mixture". In particular one rubs the first mixture into the garment as described under the heading "First Mixture";
(ii) thereafter the yellow stain removing solution is applied by using a rubber glove to gently rub the stain removing solution into the garment for a few minutes;
(iii) a) thereafter if the garment is to be dry cleaned, the garment may be added in with the dry cleaning and washed in the normal course;
b) if the garment is to be cleaned by water, the garment may be included in the normal wash.
The yellow stain removing liquid may be used on silk or wool or any of the other fabrics described under the "First Mixture" heading.
Moreover, the temperature of the wash can either be in hot or cold water cleaning or normal dry cleaning temperature. Moreover, the fabric cont~ining the yellow stain removing solution may be put in with any other clothes, whether they are washed by water or by dry cleaning.
Although the preferred embodiment as well as the operation and the use have beenspecifically described in relation to the drawings, it should be understood the variations in the preferred embodiment could be achieved by a man skilled in the art without departing from the spirit of the invention.
Mar 26 97\12:02pm File: J:\DATA\IP\GIERCZAK\KIM\STAIN\PATENT
This invention relates to solutions for cleaning stains and particularly to a solution for cleaning "yellowed stains".
Back~round of the Invention Cleaning solutions have heretofore been produced and utilized in order to remove fabric stains. Pre-spotting laundry compositions are generally compositions which may be applied to the stained area.
These pre-spotting compositions may either be based primarily upon water or based primarily upon solvents. The aqueous based pre-spotting compositions may be used in trigger spray bottles for application directly to the stain area. The aqueous based pre-spotting compositions include stain removal characteristics against water borne stains such as grape juice, chocolate and the like.
On the other hand solvent based pre-spotting compositions may be applied by aerosol. Solvent based pre-spotting compositions are effective in removing oil-borne stains such as fat, spaghetti sauce, grease, motor oil and the like.
For example, U.S. Patent No. 4,595,527 relates to a pre-spotting composition comprising a chelating agent, at least one nonionic surfactant and water.
Moreover, U.S. Patent No. 3,679,609 relates to a concentrate composition made up of lower alcohols, a selected glycol, methyl Cellosolv, ammonia, higher alcohols and ethers.
Moreover, U.S. Patent No. 5,269,958 relates to a self-pressurized spot dry cleaning composition which contains a combination of dimethyl ether, water, cosolvent for the dimethyl ether and water and a particulate absorbent capable of absorbing a stain from the fabric unto which the composition is sprayed such as fumed or pyrogenic silica, and composition of dimethoxymethane.
~ 2 0 1 2 5 0 Furthermore, U.S. Patent No. 171,912 relates to a cleaning fluid consisting of saponified oils and fatty acid, acetone, vegetable oils, and hydro-carbon solvents mixed to constitute a new composition of matter.
Moreover, it is not uncommon for garments to become stained and particulary to exhibit a yellow stain.
It is an object of this invention to provide an improved solution for cleaning stains and in particular a yellow stain removing solution and method for producing same.
It is a further object of this invention to provide a solution that effectively removes yellow stains from a variety of fabrics.
It is an aspect of this invention to provide a solution for cleaning stains comprising: sodium chloride; sodium hypochloride and soap.
It is another aspect of this invention to provide a stain removing solution which includes between 20 to 40 percent by weight of soap and between 80 to 60% by weight of a mixture of NaCl, NaClO and H20.
It is a further aspect of this invention to provide a stain removing solution having by weight percentage NaCl 5.04%; NaClO 2.45%; H20 87.51%; a blend of homologues from nonylphenoxypoly (ethyleneoxy) ethanol components 2.70% and oelic acid .36%.
Description of the Invention First Mixture The cleaning solution to be described herein can be used to effectively remove stains whether such stains are water borne or oil borne. In particular, the cleaning solution may be utilized to effectively remove ketchup, ink, oil, blood, mustard, stains and the like from a variety of fabrics without affecting the fabric. For example, the cleaning solution to ~20 1250 be described herein can be used to remove water or oil borne stains from silk, cotton, wool, denim, carpet and any other fabric.
The cleaning solution comprises dry cleaning solvent, soap, caustic soda, ammonia, and oil.
In particular, the dry cleaning solvent consists of commercially available dry cleaning solutions such as volatile organic dry cleaning solvents. Suitable dry cleaning solvents can include those commonly referred to as chlorinated solvents and hydro-carbon solvents. Examples of suitable chlorinated solvents include perchlorethlene, trichloroethylene, carbon tetrachloride to name a few. Specific examples of suitable hydro-carbon solvents include aromatic hydro-carbons such as benzene, toluene, xylene or mixtures thereof. The soap utilized herein can consist of a variety of commonly used soaps or detergents such as available under the trade-mark Ivory or as sold by Dow Brands Canada Inc., under the trade-mark Spray and Wash. Other soaps and detergents may also effectively be used.
Oils which are used in producing the cleaning solution generally comprise vegetable oils which may be selected from the group of olive oil, peanut oil, corn oil and the like. The caustic soda utilized herein consists of sodium hydroxide or the like which is commercially available. Moreover, the ammonia utilized herein is available commercially.
More particularly the cleaning solution or laundry pre-spotting composition consists of mixing between 85 to 55% by weight of the dry cleaning solution between 10 to 30% by weight of soap with the remainder between 5 to 15% by weight consisting of caustic soda, ammonia and oil. In one particular embodiment approximately 70% by weight of dry cleaning solvent is mixed with approximately 20% by weight of soap and approximately 10%
by weight of caustic soda, ammonia and oil. In a further embodiment, the cleaning solution comprises 75 % by weight dry cleaning solution; 21.25 % soap or surfactant, 1.25 %
ammonia, with remainder being 0.83% water, 0.01% caustic soda and 1.66% by weight oil.
' 220 ~250 More specifically in one embodiment one starts off with producing a mixture of caustic soda, water and oil. The caustic soda used comprises of powder which is mixtured with water in the following proportions: water 33 % (i.e. 500 mil = 440 gm) to caustic soda 0.23% (i.e. 3 gm) and oil 67% (1000 ml = 880 gm). This makes a solution of 1500 ml weighing approximately 1323 gm. Then approximately 10 ml is obtained from the solution of water, caustic soda and oil and mixed with 5 ml of ammonia (4.4g), 85 ml of soap (74.8gm) and 100 ml of dry cleaning solvent (88 gm) to obtain the following:
Solution of water }
caustic soda }
oil } lOml8.8gm 5%
Ammonia 5ml 4.4gm 2.5%
Soap 85ml74.8gm 42.5%
Dry cleaning solution lOOml 88~m 50.0%
200ml176gm 100.0%
The ammonia used comprises an ammonia solution as sold by Regal Sales Company from Toronto, Canada under the designation UN2672.
The laundry pre-spotting composition is mixed in the ratios referred to above in an appropriate container which is tightly sealed and shaken. In one embodiment, the solution is tightly sealed and shaken and allowed to stand so as to produce a solution which separates into two levels. The upper lighter level or solution is removed and the heavier separated solution at the bottom is utilized as the stain remover. More particularly, in another embodiment the mixture may be tightly sealed and shaken approximately twice a day for approximately 30 minutes. This ~h~king can occur for five days after which the mixed solution is allowed to stand for an appropriate period of time within which to allow the liquid to separate. In particular, in one embodiment after two days the mixed solution can separate and the lighter liquid on the top removed while the heavier liquid on the bottom is utilized as the stain remover. However, such separation can effectively take place over a shorter period of time.
~20 112S0 The pre-spotting composition rem~ining at the bottom may then be shaken before use.
In particular, the pre-spotting material may be applied to the stain to be removed by a variety of means including spraying or the like or just applying the cleaning solution and rubbing the pre-spotting composition into the stain (using a rubber glove). A brush may be used to gently rub the pre-spotting composition into the stain depending on the type of fabric. Leave the first mixture for a couple of minutes. For tough stains, apply more mixture to the stain and leave it for a few minutes and rub the stain gently again. When finished with rubbing, introduce the garment into a dry cleaning machine or wet washing machine with other clothes. The pre-spotting composition referred to herein may be utilized on a variety of fabrics safely and effectively such as silk, cotton, denim, carpet or the like. It has been found that by rubbing in the pre-spotting composition into the stain there is minim~l if any running of colours found within the fabric.
Example 1 In one embodiment the pre-spotting composition rem~ining at the bottom has the following composition:
Dry Cleaning Solution 70% by weight Soap 20% by weight Caustic soda }
Water }
Ammonia }
Oil } 10% by weight The dry cleaning solution comprises perchlorethylene.
Example 2 In another embodiment the pre-spotting composition comprises a solution having a pH of 10.91 and specific gravity of 1.454 (25~C/25~C) with the following composition:
perchlorethylene 75 % by weight surfactant 21.25% by weight ammonia 1.25% by weight 220 ~2~0 Solution A water 0.83 % by weight - caustic 0.01% by weight oil (vegetable) 1.66% by weight 100%
In example 2, the surfactant or soap consists of the following on a weight percent basis, namely:
Volatile component 87.3 - water 83.8 - volatile organic remainder solvent such as alcohol 87.3 %
Non volatile residue 12.7 %
- surfactants 10.6%
- non volatile residue 2.1 %
such as salts/alkali 12.7 %
Accordingly, the major component of the soap or surfactant consists of volatile component accounting for 87.3 % by weight and the non-volatile residue accounting for 12.7 %. The major component of the volatile component is water accounting for 83.8 %.
The surfactant is nonionic which consists of:
1. 9% by weight - a blend of homologues from nonylphenoxypoly (ethyleneoxy) ethanol components (such as lgepal Co-530;) 2. 1.2 % by weight - oelic acid The balance of the surfactant mixture is attributed to cationic species, such as amines or inorganic compounds which help to dissolve and stabilize a fatty acid as its salt.
The nonylphenoxypoly (ethyleneoxy) ethanol in the product is a blend of oil soluble and a highly water soluble homologue. Oil stains are penetrated and lifted by oleic acid - 22 tl I Z 5 รป
while the oil soluble surfactant assists in both stain removal as well as emulsification of the oleic acid in an aqueous medium.
Therefore in example 2 the pre-spotting composition has the following composition:
perchlorethylene 75 .00%
water 19.59%
monylphenoxypoly (ethyleneoxy) ethanol product 1.90%
oleic acid .25%
ammonia 1.25%
water 0. 83 %
caustic 0.01 %
Oil (vegetable) 1.66%
trace elements remainder 100.00%
The total weight of water in the above Illixlure is 19.59% by weight.
The pre-spotting composition referred to herein may be safely and effectively used to remove ketchup, ink, oil, blood, mustard stains and the like whether for silks, cottons, wool or denim.
Moreover, the pre-spotting composition utilized herein on the fabrics above may then be safely and effectively added to a washing machine utili7ing hot or cold water or in dry cleaning procedures. Dry cleaning procedures normally utilized for fabrics which tend to shrink upon application of water such as silk, wool or the like.
Moreover, the fabrics which have the pre-spotting composition on the stains may then be thrown in with other clothes which are either being dry cleaned or washed in the washing a2~ ~25~
machine. Furthermore, the pre-spotting composition may be left on the fabric stain for a short period of time such as for example five minutes and thereafter the fabric may be added to the dry cleaning or water cleaning.
It has been found that the stain will effectively disappear from the fabric referred to above. In particular, the cleaning solution effectively removes stains from high quality fabrics such as silk or the like without running of fabric colours or destroying the fabric.
Furthermore, the pre-spotting composition described herein may be utili_ed for up to a year if the container cont~ining the cleaning solution is tightly sealed otherwise the solvent could evaporate and decrease the effectiveness of the cleaning solution. If the container is accidentally left open the cleaning solution could still effectively be used by adding approximately 15% by volume of dry cleaning solvent.
We caution that the first mixture may not work on old grease stains already processed with other cleaning chemicals. Furthermore, one should presume that the stain is dry before using the first mixture; i.e. do not put any other solution or even water on the stain. In other words, do not use any other chemicals with the first mixture as it might cause unknown chemical reactions and damage the fabrics.
Second Mixture Cleanin~ Stains It has also been found that a novel solution for cleaning stains and particularly the yellowish stains located in the under arm portions of a garment such as a shirt or blouse may be removed by utili7ing a solution which comprises of approximately 70% by volume of the solution to be described hereinbelow to be added with approximately 30% by volume of the soap or surfactant referred to above. The second mixture does not work with rust stains but with the normal yellow stains that are exhibited in the underarms or the like. The second mixture may not work on old stains already processed with other cleaning chemicals.
~20 ~250 We caution that the second mixture never be used above as it may damage fabric and should always be used with the first mixture.
In particular one can prepare the solution for cleaning yellowed stains by utili7in~ approximately 70% of the mixture of:
pH 12.2 Solids % by Mass Conce~ lion Chemical (mg/L) or ppm Formula Total 10.7 106,840 Inorganic 7.2 71,892 NaCl Organic 3.5 34,947 NaClO
Liquid % by Mass Conc~"llalion (mg/L) or ppm Water 89.1 - H2O
Organic % by Mass Concentration Chemicals (mg/L) or ppm Acetone ~ 1 ~ 5'~~~3 C3H6O
Chloroform ~ 1 ~ 8,0004 CHCl3 It should be noted that the total percentage adds up to 100%. Moreover, the relative concentrations referred to above represent one embodiment of the invention and it has been found that the relative concentrations could be varied plus or minus 10%
(so long as the total added up to 100%) and the mixture would still be effective.
Moreover, trace elements of a trichlorinated ion and tetrachlorinated ion were found.
In particular as can be seen from above, the total solids content of the solution comprise approximately 10.7% by mass of approximately 7.2% inorganic solids, namely NaCl and approximately 3.5% of organic solids, namely NaClO.
.22~ ~25~
Moreover, approximately 89.1% by mass of water was found.
Furthermore trace elements of acetone and chloroform having the chemical formulaoutlined above were also included. Furthermore as outlined above trace elements of tetrachlorinated ions and trichlorinated ions having a mass less than 1% by mass were also located. However, such concentrations of the trichlorinated and tetrachlorinated ions were in much smaller amounts than acetone and chloroform and it is believed that such ions do not form the functional group of the cleaning solution and may be obtained as a result of a small amount of fragrance found in the solution.
The standard indicator paper showed that the above-identified solution had a pH of approximately 12.2. After a few minutes the pH changed to a little less than 12.2 and it was probably due to the oxidation of the colour pigments in the indicator paper and not an actual pH change in the solution. Commercial products like Javex (a trademark) show similar results.
It is believed that the main oxidizing component of these products is NaC10 which can be prepared by bubbling chlorine gas into solution of NaCOH as shown in the following:
Cl2 + 20H- ~ Cl- + ClO- + H20 where Cl- is chloride and C10- is hypochloride. Hypochloride is a very powerful oxidizing agent.
Accordingly, an improved cleaning agent for removing yellowed stains is produced by mixing approximately 70% of the solution cont~ining the NaCl and NaC10 with approximately 30% of the soap or surfactant previously described under the heading "First Mixture" and cont~3ining on a weight percentage basis:
water 83 . 8 non-volatile residue such as salts/alkali 2.1 volatile organic solvents such as alcohol 3.5 ~2~ ~25Q
surfactants 10.6 In particular, these surfactants are:
9% a blend of homologues from nonlphenoxypoly (ethyleneoxy) ethanol components (such as lgepal Co-530) 1.2% oelic acid remainder trace elements Therefore by adding approximately 70% of mixture 2 to approximately 30% of the surfactant one obtains the following solution:
NaCl 5.04%
NaClO 2.45 %
H2O 62.37%
Acetone ~ .07 %
Chloroform ~ .07 %
H2O 25.14%
a blend of .............. 2.70%
oelic acid .36%
non-volatile residue .63%
volatile organic solvents 1.05%
trace elements .12%
The total water content is 87.51%
Moreover, it has been found that an acceptable yellow stain removing solution can be made by including between 60% and 80% of the mixture cont~ining NaCl and NaClO (ie. under the heading of "Second Mixture") with 20% to 40% of by volume of the mixture cont~ining the soap (ie. under the heading "First Mixture").
22~ ~25Q
The method of removing the yellow stains from the underarm portions of a garment shall now be described. The steps of removing such yellow stains consists of:
(i) utili7:ing the solution which is described under the heading of "First Mixture". In particular one rubs the first mixture into the garment as described under the heading "First Mixture";
(ii) thereafter the yellow stain removing solution is applied by using a rubber glove to gently rub the stain removing solution into the garment for a few minutes;
(iii) a) thereafter if the garment is to be dry cleaned, the garment may be added in with the dry cleaning and washed in the normal course;
b) if the garment is to be cleaned by water, the garment may be included in the normal wash.
The yellow stain removing liquid may be used on silk or wool or any of the other fabrics described under the "First Mixture" heading.
Moreover, the temperature of the wash can either be in hot or cold water cleaning or normal dry cleaning temperature. Moreover, the fabric cont~ining the yellow stain removing solution may be put in with any other clothes, whether they are washed by water or by dry cleaning.
Although the preferred embodiment as well as the operation and the use have beenspecifically described in relation to the drawings, it should be understood the variations in the preferred embodiment could be achieved by a man skilled in the art without departing from the spirit of the invention.
Mar 26 97\12:02pm File: J:\DATA\IP\GIERCZAK\KIM\STAIN\PATENT
Claims (11)
1. A solution for cleaning stains comprising:
(a) sodium chloride;
(b) sodium hypochloride;
(c) soap.
(a) sodium chloride;
(b) sodium hypochloride;
(c) soap.
2. A solution for cleaning stains wherein said soap comprises by weight percentage:
H2O 83.8%
a blend of homologues from 9.0%
nonylphenoxypoly (ethyleneoxy) ethanaol components oleic acid 1.2%
volatile organic solvent 3.5%
non-volatile residue 2.1%
trace elements remainder
H2O 83.8%
a blend of homologues from 9.0%
nonylphenoxypoly (ethyleneoxy) ethanaol components oleic acid 1.2%
volatile organic solvent 3.5%
non-volatile residue 2.1%
trace elements remainder
3. A solution for cleaning stains comprising:
(a) between 20% to 40% by weight of a first mixture comprising:
(i) soap;
(b) between 80% to 60% by weight of a second mixture comprising:
(i) NaCl (ii) NaClO
(iii) H2O.
(a) between 20% to 40% by weight of a first mixture comprising:
(i) soap;
(b) between 80% to 60% by weight of a second mixture comprising:
(i) NaCl (ii) NaClO
(iii) H2O.
4. A solution for cleaning stains as claimed in claim 3 wherein said soapcomprises:
(a) water 83.8% by weight (b) surfactant 10.6% by weight (c) trace elements remainder
(a) water 83.8% by weight (b) surfactant 10.6% by weight (c) trace elements remainder
5. A solution for cleaning stains as claimed in claim 4 wherein said surfactant comprises 9% by weight nonylphenotypoly (ethyleneoxy) ethanol components and 1.2% by weight oleic acid.
6. A cleaning solution as claimed in claim 5 wherein said soap has a pH of 9.81.
7. A solution for cleaning stains as claimed in claim 6 wherein said second mixture comprises:
(a) 7.2% by weight NaCl;
(b) 3.5% by weight NaClO;
(c) 89.1% by weight of H20.
(a) 7.2% by weight NaCl;
(b) 3.5% by weight NaClO;
(c) 89.1% by weight of H20.
8. A solution for cleaning stains as claimed in claim 7 wherein said second mixture includes:
(a) acetone;
(b) chloroform.
(a) acetone;
(b) chloroform.
9. A solution for cleaning stains comprising by weight percentage:
NaCl 5.04%
NaClO 2.45%
H2O 87.51%
a blend of homologues 2.70%
from nonylphenoxypoly (ethyleneoxy) ethanol componens oleic acid .36
NaCl 5.04%
NaClO 2.45%
H2O 87.51%
a blend of homologues 2.70%
from nonylphenoxypoly (ethyleneoxy) ethanol componens oleic acid .36
10. A solution for cleaning stains as claimed in claim 9, further including by weight percentage:
acetone .07 chloroform .07
acetone .07 chloroform .07
11. A method of cleaning a yellow stain by:
(a) applying a first solution to the yellow stain which solution includes water, homologue from nonylphenoxypoly (ethyleneoxy) ethanol components and oelic acid;
(b) applying a second solution to the yellow stain, which solution includes NaCl, NaClO and H2O.
(a) applying a first solution to the yellow stain which solution includes water, homologue from nonylphenoxypoly (ethyleneoxy) ethanol components and oelic acid;
(b) applying a second solution to the yellow stain, which solution includes NaCl, NaClO and H2O.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2201250 CA2201250A1 (en) | 1996-11-29 | 1997-03-27 | Stain remover |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2191656 CA2191656A1 (en) | 1996-11-29 | 1996-11-29 | Cleaning solvent |
| CA2,191,656 | 1996-11-29 | ||
| CA 2201250 CA2201250A1 (en) | 1996-11-29 | 1997-03-27 | Stain remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2201250A1 true CA2201250A1 (en) | 1998-05-29 |
Family
ID=25678877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2201250 Withdrawn CA2201250A1 (en) | 1996-11-29 | 1997-03-27 | Stain remover |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2201250A1 (en) |
-
1997
- 1997-03-27 CA CA 2201250 patent/CA2201250A1/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AZWI | Withdrawn application |