US2445994A - Toy - Google Patents

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Publication number
US2445994A
US2445994A US552938A US55293844A US2445994A US 2445994 A US2445994 A US 2445994A US 552938 A US552938 A US 552938A US 55293844 A US55293844 A US 55293844A US 2445994 A US2445994 A US 2445994A
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US
United States
Prior art keywords
toy
soap
dyes
ph
color
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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.)
Expired - Lifetime
Application number
US552938A
Inventor
Benson Ellen Gay
Benson Richard Ernest
Original Assignee
Benson Ellen Gay
Benson Richard Ernest
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Benson Ellen Gay, Benson Richard Ernest filed Critical Benson Ellen Gay
Priority to US552938A priority Critical patent/US2445994A/en
Application granted granted Critical
Publication of US2445994A publication Critical patent/US2445994A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS, BUILDING BLOCKS
    • A63H33/00Other toys
    • A63H33/22Optical, colour, or shadow toys

Description

Patented July 27, 1948 NT oFFIcE TOY L Ellen Gay Beiisonand Richard Ernest Benson, 3 3 Eden, N.Y.

No Drawing. Application September 6, 19 14 Serial N0. 552,938

2 Claims.

This invention is concerned with a new toy possessing entertaining characteristics and features, said characteristics being well-known in principle to the chemist but which are Very amusing and absorbing to the tiny tots of 2 to 5 years of age and Which because of the unique and apparently mysterious nature of said characteristics is enjoyed not only by the older, children ;but also bythe grown-ups.

The ,object of our invention is to provide an "improved toy in the form of a cotton washcloth for the amusement of people of all ages but particularly for the entertainment of children by utilizing certain dyes that have the ability to change color when exposed to a differential of pH, defined as hydrogen ion concentration.

We have accomplished this by employing the well-known phenomenon of the change of color of certain dyes known to the chemist by the general name of indicators.

Fundamentally our invention is a toy which is formed by printing, spraying, or otherwise supporting upon a cotton washcloth, Curcumin having the formula 2.C'H3OCsH3-1--OH--4-CH CHCO) 2CH2 or Brilliant Yellow having the formula .(4--HOC6H4N2NCsHsSOsNEtCHI 2 or a combination of these dyes and which possess one color when in contact with soap which is different from the respective colors whicheach possessses in the absence of said soap.

The simplest toy consists of a cotton wash cloth having a restricted portion dyed with a dilute solution of brilliant yellow to give a cloth having a pictorial design of yellow color. When this cloth is wet and any of the popular brands of commercial grades of fatty acid toilet or face soaps applied, the pictorial design on the washcloth turns vivid pink. When the soap is rinsed out, the original yellow color returns. Among the designs that we have employed are those of animals and familiar household objects.

Brillian Yellow and Curcumin have been found to be the most satisfactory for printing onto cotton fabric because of their ease of printing and affinity for this textile.

The toy is even more intriguing when both of the above indicator dyes are partially or wholly superimposed on one another or when prints involving two or more dyes are employed to produce the desired design. For example, design of a leopard can be printed with Brilliant Yellow and its spots can be printed with Curcumin in a two pass operation. Though both of these dyes are yellow. the spots are plainly visible unlessextreme care is taken to print the spots lightly.

When the dampened washcloth is rubbed with soap, the printed leopard turns pink except for the spots which turn a brownish-lavender; The exact shade of the spots is a composite of pink and amber and depends upon the relative amounts of the two dyes employed in the printing of the toy. Naturally the two dyes can be reversed with the spots being printed with Brilliant Yellow. Also by suitable printing technique, one dye is not applied over the other.

It is also to be understood that the fabric does not necessarily have to be white. Rather startling effects are produced when the dye, particularly Brilliant Yellow is printed upon a yellow washcloth and an unsuspecting male starts to wipe shaving soap from his face. Also beautiful effects can be obtained by employing fabric on which conventional dyes have already been printed.

Indicators are well -known to all those who have more than an elementary training in chemistry. One class include oxidation-reduction indicators. These are not included in this invention. Another class of indicators include those compounds which change color when subjected to a suflicient change in pH. However all indicators in this classification are not operative in our invention because this invention being a toy is limited to that range of pH to which a child may safely be exposed. We propose to limit the upper pH to that Produced by commercial grades of toilet and laundry soap sold to the domestic trade, particularly the housewife. This pH range is generally 9 to 11. Therefore, by the above, we have limited our invention to Curcumin and Brilliant Yellow which change color when subjected to a change in pH said change being confined within the limits of that normally encountered in municip-al drinking water namely, from about 6.0 to 8.5, and that produced by a commercial toilet or face soap. Our invention is a toy in the form of a cotton washcloth or the like having Curcumin or Brilliant Yellow dye covering a restricted portion thereof to provide a. pictorial representation thereon, said indicator dyes changing in color within the range of pH of drinking water and that pH produced by a commercial soap; said toy when wet changing colors upon the application of soap and regaining its original appearance when the soap is removed by rinsing with water; and said toy being further characterized by being fast when subjected to repeated rubbing 1. A toy washcloth or the like, comprising a piece of cotton fabric and a dye selected from a group composed of Curcumin having the formula" (2 CH3OCtI-Iz-1O-H4 CH :CHCO)'2CH2 and Brilliant Yellow having the formula (4 Hoc6H4N:nosmsomacaz 2' covering a restricted portion of said piece of cotton fabric to provide a pictorial representation thereon, said dye being characterized by changing in color when contactedwith a solution of a fatty acid soap having a pH of from 90 co-1'1 andby substantially" reverting to it's originalco'lor' when thereafter rinsed with water having/a: pH of from 6;0' to' 815, and said' dye also having anv affinity for said piece'of cottonfabri'c to withstand repeated r'ubb-in'gs, washings and rinsings'.

2. A toy" washcloth or' the like comprising a piece of'cotton fabric and 'Curcumin and Brilliant 4 I r' f, 1 Yellow dyes having a, formula, respectively, of

(2CH3OC6H31-OH4CH 2 CHCO) 20H:

and v (4HOC6H4N I NCsHsSOaNaCH: 2

covering a restricted portion of said piece of cotton fabric jointly to provide a pictorial representation thereon, both of said dy's being characterized by changing in color when contacted with a solution of a fatty acid soap having a pH of from 9.0 to 11 and by substantially reverting to their original color when thereafter rinsed with water having ap-H of from 6.0 to 8.5, and said dyes also having an affinity for said piece of cotton fabric to withstand repeated rubbings, washings and rinsings. I

ELLEN GAY BENSON. RICHARD ERNEST BENSON.

REFERENCES CITED The following references are of record iii Elie file of thi's patent:

UNITED' STATES PATENTS Number Name Date;

1,9335'43 Sanburn ec: 5', 1-933 2;129,995 Dreyfus sent. 1,3;1'93 2,229,155 Wenker' Jan. 2;,1941 2,250,980 Workman my; 29; 1941

US552938A 1944-09-06 1944-09-06 Toy Expired - Lifetime US2445994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US552938A US2445994A (en) 1944-09-06 1944-09-06 Toy

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US552938A US2445994A (en) 1944-09-06 1944-09-06 Toy

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US2445994A true US2445994A (en) 1948-07-27

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257188A (en) * 1979-01-30 1981-03-24 Cpg Products Corp. Toy dolls and figurines having surface portions of reversibly changeable color
US6583722B2 (en) 2000-12-12 2003-06-24 Kimberly-Clark Worldwide, Inc. Wetness signaling device
US6603403B2 (en) 2000-12-12 2003-08-05 Kimberly-Clark Worldwide, Inc. Remote, wetness signaling system
US20060222601A1 (en) * 2005-03-29 2006-10-05 Sabnis Ram W Oral care compositions with color changing indicator
US20060222675A1 (en) * 2005-03-29 2006-10-05 Sabnis Ram W Personal care compositions with color changing indicator
US20070010400A1 (en) * 2005-07-06 2007-01-11 Sabnis Ram W Use of color changing indicators in consumer products
US20070142263A1 (en) * 2005-12-15 2007-06-21 Stahl Katherine D Color changing cleansing composition
US7651989B2 (en) 2003-08-29 2010-01-26 Kimberly-Clark Worldwide, Inc. Single phase color change agents
US7910531B2 (en) 2004-06-17 2011-03-22 C2C Technologies Llc Composition and method for producing colored bubbles
US8067350B2 (en) 2005-12-15 2011-11-29 Kimberly-Clark Worldwide, Inc. Color changing cleansing composition
USD808602S1 (en) 2015-02-05 2018-01-23 BoBear LLC Hand washing device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1938543A (en) * 1932-11-16 1933-12-05 Strathmore Paper Company Method of making paper
US2129995A (en) * 1934-09-17 1938-09-13 Dreyfus Henry Saponification of organic esters of cellulose
US2229155A (en) * 1938-04-23 1941-01-21 Wenker Henry Indicator paper
US2250980A (en) * 1940-01-22 1941-07-29 California Portland Cement Co Indicator package for cements and the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1938543A (en) * 1932-11-16 1933-12-05 Strathmore Paper Company Method of making paper
US2129995A (en) * 1934-09-17 1938-09-13 Dreyfus Henry Saponification of organic esters of cellulose
US2229155A (en) * 1938-04-23 1941-01-21 Wenker Henry Indicator paper
US2250980A (en) * 1940-01-22 1941-07-29 California Portland Cement Co Indicator package for cements and the like

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257188A (en) * 1979-01-30 1981-03-24 Cpg Products Corp. Toy dolls and figurines having surface portions of reversibly changeable color
US6583722B2 (en) 2000-12-12 2003-06-24 Kimberly-Clark Worldwide, Inc. Wetness signaling device
US6603403B2 (en) 2000-12-12 2003-08-05 Kimberly-Clark Worldwide, Inc. Remote, wetness signaling system
US7651989B2 (en) 2003-08-29 2010-01-26 Kimberly-Clark Worldwide, Inc. Single phase color change agents
US7910531B2 (en) 2004-06-17 2011-03-22 C2C Technologies Llc Composition and method for producing colored bubbles
US20060222601A1 (en) * 2005-03-29 2006-10-05 Sabnis Ram W Oral care compositions with color changing indicator
US20060222675A1 (en) * 2005-03-29 2006-10-05 Sabnis Ram W Personal care compositions with color changing indicator
US20070010400A1 (en) * 2005-07-06 2007-01-11 Sabnis Ram W Use of color changing indicators in consumer products
US20070142263A1 (en) * 2005-12-15 2007-06-21 Stahl Katherine D Color changing cleansing composition
US8067350B2 (en) 2005-12-15 2011-11-29 Kimberly-Clark Worldwide, Inc. Color changing cleansing composition
USD808602S1 (en) 2015-02-05 2018-01-23 BoBear LLC Hand washing device

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