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Method for evaluating fabric conditioners

A fabric conditioner, fabric technology, applied in the direction of chemical instruments and methods, material analysis by observation of the effect on chemical indicators, softening compositions, etc.

Active Publication Date: 2021-10-19
UNILEVER IP HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods require human panelists willing to participate in patch trials or able to perform titrations in a laboratory setting

Method used

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  • Method for evaluating fabric conditioners
  • Method for evaluating fabric conditioners
  • Method for evaluating fabric conditioners

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] - Use two identical pieces of white polyester roughly 20x20cm.

[0105] - Dip two pieces of polyester simultaneously into the same bowl of laundry detergent (6g laundry detergent per liter of water, detergent contains: non-ionic 7wt%, SLES-2EO 1.5wt%, LAS 5.8wt% and) and stir for about 5 seconds.

[0106] - Remove the two pieces of polyester and squeeze to remove excess water.

[0107] - Simultaneously immerse one piece of absorbent material in a bowl of water and a second piece of absorbent material in a bowl of water containing fabric conditioner (50 g fabric conditioner per liter of water, fabric conditioner comprising 4% by weight PH-TEAQ).

[0108] -Stir both sheets of poly at the same time for about 5 seconds.

[0109] - Remove the two pieces of polyester and squeeze to remove excess water.

[0110] - Simultaneously dip two pieces of polyester into separate bowls each containing 1 liter of water and 0.5 ml of a 1% toluidine solution.

[0111] -Stir both sheets...

Embodiment 2

[0115] - Immerse the rectangular piece of fabric in water containing the detergent composition. Stir it and keep it in solution for about 15 seconds.

[0116] - Remove fabric and ring press to remove excess liquid.

[0117] - Two containers placed side by side. The first container contains water comprising the fabric conditioner composition and the second container contains water.

[0118] - Place half of the rectangular piece of fabric in the first container and half in the second container and let stand for about 20 seconds.

[0119] -During 20 seconds, draw a line through the section of rectangular fabric bridging between the two containers to indicate the two halves.

[0120] - Carefully remove the fabric to avoid contamination between the two halves of the fabric. Squeeze each side individually to remove excess liquid.

[0121] - Dip the fabric piece into a bowl of toluidine dye solution for about 10 seconds.

[0122] - Remove the fabric piece from the dye solution,...

Embodiment 3

[0125] - Soak a piece of fabric in water containing the detergent composition. Stir it and hold it in solution for about 8 seconds.

[0126] - Remove fabric and ring press to remove excess liquid.

[0127] -Then cut the fabric in half.

[0128] - Attach the first half to the risers using bulldog clips.

[0129] - Dip the second half into the water containing the fabric conditioner and stir for about 10 seconds.

[0130] - Remove the second half and squeeze to remove excess liquid.

[0131] -Then also use bulldog clips to attach the second half to the riser, next to the first half.

[0132] - Spray an equal amount of an aqueous solution of toluidine dye to both pieces of fabric.

[0133] - Visually evaluate the resulting color of the two fabrics. The tablets treated with the detergent solution alone were significantly bluer than the tablets soaked in water containing the fabric conditioner. This demonstrates that the fabric conditioner neutralizes the detergent residue.

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Abstract

A method of evaluating the neutralizing effect of a fabric conditioner, said method comprising the steps of: a) immersing a first piece or section of absorbent material in water comprising a laundry detergent composition; b) immersing said first piece or sections of absorbent material are immersed in water comprising a fabric conditioning composition; c) applying a cationic dye to said absorbent material; and d) evaluating the color of said fabric.

Description

technical field [0001] The present invention is in the field of evaluating the neutralizing effectiveness of fabric conditioning compositions. Background technique [0002] Laundry detergent compositions can leave residue on fabrics. When these residues come into contact with the skin of consumers, they can cause skin irritation. [0003] WO 00 / 17297 discloses the use of cationic materials, such as cationic fabric conditioning materials and compositions, to reduce skin irritation. A method of evaluating fabric conditioners for reducing skin irritation is disclosed. However, these methods require human panelists willing to participate in patch trials or able to perform titrations in a laboratory setting. [0004] There is a need for a method of performing a quick and easy assessment of the neutralizing effectiveness of fabric conditioners. Contents of the invention [0005] A method of evaluating the neutralizing effect of a fabric conditioner, said method comprising th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D3/00C11D1/65G01N21/78G01N21/94
CPCC11D1/65C11D3/001G01N21/78G01N21/94
Inventor C·博德曼沈帆S·B·乔伊斯许丹萍
Owner UNILEVER IP HLDG BV