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Laundry care compositions

A technology for laundry washing and composition, which is applied in the field of laundry washing and care compositions, and can solve problems such as dislike

Pending Publication Date: 2017-03-01
MILLIKEN & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One drawback to using bluing agents or shade modifiers is that they are often incorporated into laundry care compositions at levels that may render the composition a saturated turquoise blue
And, while some consumers may prefer laundry care compositions that exhibit such color, other consumers do not like these shades

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0434]This example illustrates the preparation of 6-(dimethylamino)-3-[p-(dimethylamino)phenyl]phthalide, which has the following structure:

[0435]

[0436] This compound is an intermediate useful in the preparation of compounds suitable for use in the laundry care compositions described herein.

[0437] First, with a condenser, mechanical stirrer, thermocouple and N 2 Add 74.5g of 4-dimethylaminobenzaldehyde, 82.5g of 3-dimethylaminobenzoic acid and 250mL of acetic anhydride to the inlet 1L three-necked flask, and heat to reflux for 6 hours. The mixture was cooled to below 80°C. 45 mL of water was added, and the contents of the flask were stirred for 2 hours. The contents of the flask were then cooled to room temperature and 250 mL of methanol was added. While stirring the contents of the flask, a solid formed which was later collected by filtration. The recovered solid product was washed with methanol and then dried in a vacuum oven at 60°C.

Embodiment 2

[0439] This example illustrates the preparation of 5-(dimethylamino)-2-[p-(dimethylamino)benzoyl]benzoic acid, which has the following structure:

[0440]

[0441] This compound is an intermediate useful in the preparation of compounds suitable for use in the laundry care compositions described herein.

[0442] with condenser, mechanical stirrer, thermocouple and N 2 10 g of 6-(dimethylamino)-3-[p-(dimethylamino)phenyl]phthalide and 40 mL of 10% NaOH solution were added to the inlet 250 mL three-necked flask. The contents of the flask were heated to 90°C and stirred for about 1 hour until a clear solution was obtained. Then, 10 g of sodium m-nitrobenzenesulfonate was added to the solution. The contents of the reactor were heated to reflux for 15 hours and then cooled to room temperature. The contents of the flask were filtered to remove any solids. Then, the filtrate was adjusted to pH about 4.0 by adding acetic acid. After cooling the contents to room temperature, a p...

Embodiment 3

[0444] This example illustrates the preparation of several compounds considered suitable for use in the laundry care compositions described herein.

[0445] To prepare the individual compounds, 40 mmol of 5-(dimethylamino)-2-[p-(dimethylamino)benzoyl]benzoic acid, 40 mmol of substituted aniline derivatives (described below) were added to a 250 mL three-necked flask and 20 mL of acetic anhydride. The contents of the flask were heated to 100°C and stirred for 5 hours. The resulting compound was then collected by rotary evaporation.

[0446] The substituted aniline derivatives used in the above reactions conform to the general structure:

[0447]

[0448] R 5 and R 6 selected from the various groups mentioned above. Table 1 shows the structures of specific substituted aniline derivatives used to prepare the compounds by using the synthetic methods described above. Table 2 shows the structures of the obtained phthalide compounds.

[0449] Table 1. Structures of substitut...

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Abstract

A laundry care composition comprises a laundry care ingredient or adjunct and at least one compound that is capable of changing from a first color state (i.e., the initial color state in the composition) to a second color state that is perceptibly different from the first color state. A method for treating textile articles comprises the steps of: (a) providing a laundry care composition as described above; (b) adding the laundry care composition to a liquid medium; and (c) placing the textile articles in the liquid medium.

Description

technical field [0001] The present application describes a laundry care composition and its use for laundering textile articles. More specifically, this application describes laundry care compositions designed to increase the apparent whiteness or visually perceived whiteness of textile articles washed or otherwise treated with the laundry care composition or Gives the desired shade to the textile. Background technique [0002] With repeated wear and laundering, the appearance of textile articles may begin to deteriorate. This deterioration may become very noticeable on white textile articles, which begin to change to a yellow or dark appearance. In an effort to reduce or at least slow down this deterioration, some laundry care compositions have incorporated bluing agents or hueing agents. These bluing agents or shade modifiers are colorants that impart a bluish shade to textile products. The resulting bluish shade helps hide yellowing of textiles. Additionally, many pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D3/42C11D3/30
CPCC11D3/30C11D3/42C09B19/00C09B21/00C09B57/00C11D3/40C09B11/10C09B17/00C09B55/009C09B67/0077C09B69/103C09B1/00C11D3/2096C11D3/28C11D3/3481
Inventor B·R·巴特菲尔德E·托里斯S·K·戴伊M·洪H·秦D·J·瓦伦蒂
Owner MILLIKEN & CO
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