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Nicotinamide-containing handmade soap and preparation method thereof

A technology of niacinamide and handmade soap, which is applied in skin care preparations, chemical instruments and methods, soap detergents and other compounding agents, etc., can solve the problems of discoloration and easy loss of stability of soap preparations, and achieve long-term preservation and maintenance. , Improves skin barrier, treats acne

Inactive Publication Date: 2018-12-11
薛建萍 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Niacinamide is incompatible with this soap, tends to lose stability and cause discoloration of soap formulations, especially under hot and humid conditions

Method used

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  • Nicotinamide-containing handmade soap and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Mix 200g palm oil (saponification value 0.142gNaOH / g), 200g coconut oil (saponification value 0.19gNaOH / g) 66.2 and 600g soybean oil (saponification value 0.135gNaOH / g) at 40°C with constant stirring, the total saponification of oil Quantity (147.2gNaOH); Weigh 144g sodium hydroxide (about 98% saponification), add 331ml deionized water (conductivity ≤ 1μs / cm) to prepare NaOH solution, wait until the temperature of NaOH solution drops to 40°C, slowly pour In the mixed oil, keep warm at 40°C and keep stirring to carry out saponification reaction.

[0050] After reacting for 5 hours, put it into the mold, cover it with a film to prevent water from evaporating, keep it warm in a 30°C incubator for 5-7 days, monitor the pH during the heat preservation period, take it out of the mold when the pH is 8-9, grind the soap block into mud, add Content 99.32% Niacinamide crystal 50g, fully knead and mix evenly, press into the mold to form, demould, the handmade soap after demoulding...

Embodiment 2

[0052] (1) Insulate 200g palm oil, 200g coconut oil and 600g corn oil (saponification value 0.136gNaOH / g) (total saponification amount is about 147.8g NaOH) at 40 ℃, keep stirring and mixing, weigh 140g sodium hydroxide (about 95% saponification), add 322ml of deionized water (conductivity ≤ 1μs / cm) to prepare NaOH solution, when the temperature of NaOH solution drops to 40°C, slowly pour it into the mixed oil, keep it warm at 40°C, and continue to stir for saponification reaction. Reaction 5hr;

[0053] (2) Enter the mold, cover it with a film to prevent water from evaporating, keep it warm in a 30°C incubator for 5-7 days, monitor the pH during the heat preservation period, and take it out for demoulding when the pH is 8-9;

[0054] (3) Grind the soap bar into mud, add 50g of nicotinamide crystals with a content of 99.32%, add 20 drops of lavender essential oil (about 1-1.2mL), knead and mix well;

[0055] (4) Press into a mold to form, demould, and the handmade soap after ...

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Abstract

The invention relates to the field of washing products, and discloses a nicotinamide-containing handmade soap, which contains 0.05-10% of nicotinamide based on the weight of grease in raw materials. The preparation method comprises: (1) mixing grease and an alkali solution at a temperature of 25-50 DEG C, and carrying out stirring saponifying for 2-16 h; (2) sealing at a temperature of 15-45 DEG C, and carrying out thermal insulation until the pH value is 8-9; (3) grinding soap block into mud, adding nicotinamide or a nicotinamide composition, completely grinding, and uniformly mixing, whereinthe adding amount of the nicotinamide is 0.05-10% of the weight of the grease; and (4) molding, and placing until achieving a ripe state. According to the present invention, the handmade soap obtained by the method has effects of cleaning and moisturizing, and further has the skin care effect of nicotinamide, the nicotinamide can be stably stored in the handmade soap, and the handmade soap further has characteristics of long-term storage, no discoloration and no deterioration.

Description

technical field [0001] The invention relates to the field of washing products, in particular to a handmade soap and a preparation method thereof, especially handmade soap added with nicotinamide or a nicotinamide composition and a preparation method thereof. Background technique [0002] Soap preparations are commonly used cleaning products. Most of the commercially available soaps extract the glycerin produced by saponification during saponification for cosmetic purposes. Soaps without glycerin tend to dry out the skin after washing. The main raw materials of handmade soap are oil, alkali and water, without removing the glycerin produced during saponification, it can form a protective film and moisturize the skin while cleaning. [0003] Niacinamide, also known as nicotinamide, belongs to the vitamin B group. In addition to being used in medicine and food nutritional additives, it can also be used as a nutritional additive in cosmetics. It has a variety of skin care effect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D9/02C11D9/60C11D9/38C11D9/30C11D9/26A61Q19/00A61Q19/10A61Q19/02A61Q19/08A61Q19/06
CPCA61Q19/00A61Q19/02A61Q19/06A61Q19/08A61Q19/10C11D9/02C11D9/265C11D9/30C11D9/38
Inventor 薛建萍徐玉华唐璐敏
Owner 薛建萍
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