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Dentifrice including zinc and blue dye or pigment

一种蓝色颜料、蓝色染料的技术，应用在美白人或动物的牙齿表面领域

Inactive Publication Date: 2019-04-02
COLGATE PALMOLIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, high concentrations of blue dyes or blue pigments may stain the soft tissues in the mouth or make teeth look "too blue" for some consumers
Thus, while such conventional whitening oral care compositions are useful for whitening teeth, new and improved formulations are needed

Method used

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  • Dentifrice including zinc and blue dye or pigment
  • Dentifrice including zinc and blue dye or pigment
  • Dentifrice including zinc and blue dye or pigment

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0104] Example 1. ΔW during the brushing study

[0105] In Example 1, brushing was done for two minutes, and then ΔW was measured at the end of the brushing, and then at 10 minute intervals. The efficacy of zinc was tested in six (6) simple solutions, as shown in Tables 1 and 2. In Table 1, the first simple solution is the reference solution containing 0.05% blue pigment 15 CI 74160 in glycerol. The reference solution does not contain zinc. Five (5) additional non-reference solutions included: 0.05% Blue Pigment 15 CI 74160 in Glycerin with 2% Zinc Lactate, 0.05% Blue Pigment 15 CI 74160 in Glycerin with 2% Zinc Citrate, 0.05% Blue Pigment 15 CI 74160 in Glycerin with Zinc Oxide, 0.05% Blue Pigment 15 CI 74160 in Glycerin with 2% Zinc Oxide, and 0.05% Blue Pigment 15 CI 74160 in Glycerin with 2% Zinc Phosphate. Table 2 includes the same six (6) simple solutions but substituting 0.05% Blue Dye with 0.05% Blue Dye No. 1 42090.

[0106] A set of 12 human teeth were brushed ...

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Abstract

A whitening dentifrice composition includes a blue coloring agent, a zinc salt, and an orally acceptable vehicle. The blue coloring agent is selected from the group consisting of a blue pigment and ablue dye. The blue pigment has a blue to blue-violet color with a hue angle in the CIELAB system ranging from 200 degrees to 320 degrees. The whitening dentifrice composition provides a greater whitening benefit to a tooth surface in comparison to a dentifrice composition that does not contain the zinc salt.

Description

Background technique [0001] Whitening agents, such as blue dyes or blue pigments, are added to oral care compositions to make teeth appear whiter. For example, a blue dye or blue pigment may be present in toothpaste, and the user may apply the toothpaste while brushing. Blue dyes or blue pigments can be deposited on the surface of teeth (for example, when teeth are brushed), and blue dyes or blue pigments can make yellow stains on teeth appear whiter. [0002] Blue dye or blue pigment can only remain on the tooth surface for a limited duration, allowing the yellow stain to eventually reappear. Additionally, high concentrations of blue dyes or blue pigments may stain the soft tissues in the mouth or make teeth look "too blue" to some consumers. Thus, while such conventional whitening oral care compositions are useful for whitening teeth, new and improved formulations are needed. Contents of the invention [0003] A whitening and dentifrice composition is disclosed. The co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/27A61K8/49A61Q11/00
CPCA61K8/494A61Q11/00A61K2800/43A61K8/27A61K8/365A61K8/4913A61K2800/28A61K2800/30
Inventor 阿格涅斯兹卡·科钦斯卡苏曼·乔普拉J·格伦隆德
Owner COLGATE PALMOLIVE CO
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