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JP-7856696-B2 - Cleaning products

JP7856696B2JP 7856696 B2JP7856696 B2JP 7856696B2JP-7856696-B2

Inventors

  • ジャン－リュック・フィリップ・ベティオル
  • アリス・ミシェル・ブートワイユ
  • デニス・アルフレッド・ゴンザレス

Assignees

  • ザ プロクター アンド ギャンブル カンパニー

Dates

Publication Date
20260511
Application Date
20240520
Priority Date
20230620

Claims (16)

  1. A cleaning product for hand-washing dishes, comprising a spray dispenser and a cleaning composition, wherein the composition is contained in the spray dispenser, and the cleaning composition is a. A surfactant system in an amount of 2% to 20% by weight of the composition, i. Alkyl polyglucoside surfactants, ii. A surfactant system comprising amphoteric surfactants, zwitterionic surfactants, and auxiliary surfactants selected from mixtures thereof, and iii. an anionic surfactant in less than 3.0% by weight of the cleaning composition, b. A glycol ether solvent, i. A glycol ether solvent comprising formula (I): R1O ( R2O ) 3R3 (wherein R1 is a linear or branched C4, C5, or C6 alkyl or substituted or unsubstituted phenyl, R2 is propyl, and R3 is hydrogen), and ii. A glycol ether solvent comprising formula (II): R4O ( R5O ) 3R6 (wherein R4 is methyl or ethyl, R5 is propyl, and R6 is hydrogen), A cleaning product wherein the composition comprises 1.0% to 15% by weight of the glycol ether solvent of the total composition, and the composition comprises the glycol ether solvent of formula (I) and the glycol ether solvent of formula (II) in a weight ratio of 1:1 to less than 2.5:1, and the pH of the composition is 6 to 12 when measured undiluted at 20°C.
  2. The cleaning product according to claim 1, wherein the composition comprises 3% to 15% by weight of the surfactant system.
  3. The cleaning product according to claim 1, wherein the cleaning composition contains the alkyl polyglucoside surfactant at a concentration of 0.5% to 7.5% by weight of the composition.
  4. The cleaning product according to claim 1, wherein the alkyl polyglucoside surfactant comprises an alkyl chain of C8 to C18, and the alkyl polyglucoside surfactant has a number average degree of polymerization of 0.1 to 3.0.
  5. The cleaning product according to claim 1, wherein the cleaning composition contains the auxiliary surfactant at a concentration of 0.5% to 7.5% by weight of the composition.
  6. The cleaning product according to claim 1, wherein the auxiliary surfactant is an amphoteric surfactant selected from amine oxide surfactants.
  7. The cleaning product according to claim 1, wherein the auxiliary surfactant is a zwitterionic surfactant selected from betaine surfactants.
  8. The cleaning product according to claim 1, wherein the alkyl polyglucoside surfactant and the auxiliary surfactant are present in a weight ratio greater than 10:1 to 1:10.
  9. In the glycol ether solvent of formula (I), a. R1 is a linear butyl compound. b. R2 is propyl, c. The cleaning product according to claim 1, wherein R3 is hydrogen.
  10. In the glycol ether solvent of formula (II), a. R4 is methyl, b. R5 is propyl, c. The cleaning product according to claim 1, wherein R6 is hydrogen.
  11. The cleaning product according to claim 1, wherein the composition contains 2.0% to 10.0% by weight of the glycol ether solvent of the total composition.
  12. The cleaning product according to claim 1, wherein the composition comprises the glycol ether solvent of formula (I) and the glycol ether solvent of formula (II) in a weight ratio of 1:1 to 2.25:1.
  13. The cleaning product according to claim 12, wherein the composition comprises the glycol ether solvent of formula (I) and the glycol ether solvent of formula (II) in a weight ratio of 1.25:1 to 2.0:1.
  14. The cleaning product according to claim 1, wherein the surfactant system and the glycol ether solvent are present in a weight ratio of 3:1 to 1:3.
  15. The cleaning product according to claim 1, wherein the pH of the composition is 6.5 to 8.0 when measured undiluted at 20°C.
  16. The cleaning product according to claim 1, wherein the composition contains a fragrance.

Description

This invention relates to a cleaning product comprising a spray dispenser and a cleaning composition that is both more stable and improves the cleaning of crystalline lipids. Dishwashing detergents have long been used to facilitate the removal of grease, oil, and crystalline fats from cookware, dishes, and kitchen utensils. Conventional dishwashing detergents are generally available in liquid form and are effective at removing a wide range of food residues. In recent years, there has been a growing demand for convenient and efficient dishwashing products that provide a quick and effective cleaning solution. In response to this demand, dishwashing sprays have gained popularity as a convenient and time-saving alternative to traditional dishwashing methods. Dishwashing sprays typically consist of a liquid detergent composition contained in a container equipped with a manually operated spray nozzle. When the nozzle is activated, the detergent is dispensed as a fine mist or spray, allowing for targeted application to soiled dish surfaces. The user can then scrub the treated surface to loosen and remove food residue. However, for improved convenience and efficiency, it is desirable that the spray composition solubilizes and "lifts off" greasy stains with little to no scrubbing required. While dishwashing sprays offer convenience and ease of use, they present challenges when it comes to effectively removing crystalline fats. Crystalline fats, such as those found in beef, pork, and other animal fats, can be particularly stubborn and difficult to remove. Due to their surface tension and adhesive properties, crystalline fats are resistant to ordinary dishwashing detergents, resulting in incomplete or unsatisfactory cleaning, or requiring more manual labor. Compositions containing high concentrations of anionic surfactants, such as alkyl ethoxylated sulfate surfactants, are particularly effective in removing liquid grease. However, the over-spray of such anion-rich compositions is likely to cause nasal and eye irritation. Formulating spray detergent compositions to be nonionic-rich, containing only limited or no anionic surfactants, results in less irritating over-spray. However, such compositions have a significantly lower ability to lift crystalline fats with little to no scrubbing. To address this problem, solvents are incorporated into dishwashing sprays to facilitate the removal of crystalline fats. Hydrophobic solvents such as tripropylene glycol n-butyl ether are particularly effective at dissolving and dispersing fat molecules, allowing for easier removal of fat molecules with little to no scrubbing required. Such solvents are particularly effective in removing crystalline fats, but they are difficult to stably incorporate into detergent compositions, especially those for hand dish spray applications with low viscosity and relatively low concentrations of surfactants. Such hydrophobic solvents affect the viscosity, surface tension, and emulsion stability of the composition, potentially leading to phase separation, sedimentation, or reduced shelf life. Poorly stable detergent spray compositions may result in reduced performance, poor spray patterns, nozzle clogging, or limited shelf life, which can limit the commercial viability and consumer acceptance of such products. Hydrophobic solvents can be solubilized by the use of co-solvents. However, such co-solvents have typically been found to reduce the effectiveness of the hydrophobic solvent. By formulating spray detergent compositions to be rich in nonionic surfactants, particularly alkyl polyglucosides, while limiting the level of anionic surfactants, the removal of amorphous oily and greasey residues can be improved. However, stably formulating hydrophobic solvents such as tripropylene glycol n-butyl ether is even more difficult when the detergent composition contains only low concentrations or none at all of anionic surfactants. Typically, high pH is used to improve grease-removing efficacy. However, since many fragrance components have poor chemical or physical stability at high pH, high pH is generally detrimental to the stability of fragrances. Therefore, there is a need for an improved dishwashing detergent spray composition that effectively removes crystalline fats, particularly at a more neutral pH, without compromising the stability and functionality of the spray detergent, and that produces a spray spray with less irritation to the nasal passages and eyes. European Patent No. 4124651(A) relates to a cleaning product comprising a spray dispenser and a cleaning composition contained within the spray dispenser. The cleaning composition comprises a surfactant system in an amount of about 5% to about 25% by weight of the composition. The surfactant system comprises an alkyl polyglucoside surfactant, an auxiliary surfactant selected from zwitterionic surfactants, amphoteric surfactants, or mixtures thereof, and an anionic surfactant in an amount of less th