Method for solving non-discoloring problem of hinokitiol and hinokitiol analogues

By adding sodium bisulfite analogue to the mother liquor of juniper alcohol and its analogues, or by using sodium bisulfite solution in daily chemical products, the problem of discoloration of juniper alcohol and its analogues has been solved, and the color stability of the products has been achieved.

CN121107964APending Publication Date: 2025-12-12SHANGHAI YUEWANG NEW MATERIALS TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511249730.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-03
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

Hinoki alcohol and its analogues can cause discoloration when stored under vacuum or when directly added to everyday chemical products.

Method used

The discoloration problem can be solved by dissolving sodium bisulfite or sodium bisulfite analogues in the mother liquor before the crystallization of juniper alcohol or juniper alcohol analogues, or by adding it to daily chemical products containing juniper alcohol or juniper alcohol analogues, and controlling the feeding amount with a loss-in-weight feeder.

Benefits of technology

It effectively prevents discoloration of juniper alcohol and its analogues during storage and use, ensuring stable product quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121107964A_ABST
    Figure CN121107964A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of daily chemical products, in particular to a method for solving non-discoloration of hinokitiol and hinokitiol analogues, during specific use, sodium hydrogen sulfite or sodium hydrogen sulfite analogues are adopted to solve the discoloration of hinokitiol and hinokitiol analogues; a sodium hydrogen sulfite solution or a sodium hydrogen sulfite analogue solution is adopted to solve the problem of discoloration of daily chemical products containing hinokitiol and hinokitiol analogues; in this way, the technical problem that in the prior art, the hinokitiol and hinokitiol analogues are discolored in the processes of vacuum preservation and direct addition to daily chemical products for use is solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of daily chemical products technology, and in particular to a method for preventing the discoloration of cypress alcohol and its analogues. Background Technology

[0002] Hinoki alcohol, a natural compound with a unique chemical structure and various biological activities, has shown broad application prospects in the daily chemical industry. It not only possesses antibacterial and anti-inflammatory effects but also imparts a unique odor to products, making daily chemical products containing hinoki alcohol, such as cosmetics and detergents, quite attractive in the market. Hinoki alcohol analogues, due to their structural and property similarities to hinoki alcohol, have also attracted attention in the development of daily chemical products and are considered potential substitutes or supplementary ingredients to improve product performance and quality.

[0003] However, existing cypress alcohol and its analogues exhibit discoloration issues when stored under vacuum or directly added to everyday chemical products. Summary of the Invention

[0004] The purpose of this invention is to provide a method for solving the problem of discoloration of cypress alcohol and its analogues, aiming to address the technical problem in the prior art where cypress alcohol and its analogues discolor during vacuum storage and direct addition to daily chemical products.

[0005] To achieve the above objectives, the present invention employs a method for preventing the discoloration of juniper alcohol and its analogues, comprising the following:

[0006] Sodium bisulfite or sodium bisulfite analogues can be used to resolve the discoloration of juniper alcohol and its analogues.

[0007] Sodium bisulfite solution or sodium bisulfite analogue solution can be used to resolve discoloration of daily chemical products containing juniper alcohol and juniper alcohol analogues.

[0008] The specific method for using sodium bisulfite or sodium bisulfite analogues to solve the discoloration of juniper alcohol and juniper alcohol analogues is as follows:

[0009] Prepare sodium bisulfite or a sodium bisulfite analogue;

[0010] Sodium bisulfite and its analogues are added to the mother liquor of juniper alcohol or its analogues before crystallization using a feeder, so that the sodium bisulfite or its analogues are fully dissolved.

[0011] After dissolution, the product is crystallized, bottled, inspected, and then stored.

[0012] The specific method for resolving discoloration in daily chemical products containing juniper alcohol and juniper alcohol analogues using sodium bisulfite solution or sodium bisulfite analogue solution is as follows:

[0013] Prepare a sodium bisulfite solution or a sodium bisulfite analogue solution;

[0014] Sodium bisulfite or sodium bisulfite analogues are added to the main ingredients of daily chemical products containing cypress alcohol or cypress alcohol analogues using a feeding machine;

[0015] After mixing, proceed with bottling, finished product inspection, and warehousing.

[0016] The feeder used is a loss-in-weight feeder: the amount of feed is controlled by real-time monitoring of material weight changes, with an accuracy of ±1g.

[0017] The analogue of sodium bisulfite is one of bisulfite, sulfite, and thiosulfate.

[0018] The bisulfite is one of potassium bisulfite, calcium bisulfite, ammonium bisulfite, and magnesium bisulfite.

[0019] The sulfite is selected from sodium sulfite, potassium sulfite, calcium sulfite, and magnesium sulfite.

[0020] The thiosulfate is either sodium thiosulfate or potassium thiosulfate.

[0021] The present invention provides a method for solving the problem of discoloration of juniper alcohol and its analogues. In specific use, sodium bisulfite or sodium bisulfite analogues are used to solve the discoloration of juniper alcohol and its analogues.

[0022] A sodium bisulfite solution or a sodium bisulfite analogue solution is used to solve the discoloration problem in daily chemical products containing juniper alcohol and juniper alcohol analogues. This method solves the technical problem in the prior art where juniper alcohol and juniper alcohol analogues will discolor during vacuum storage and direct addition to daily chemical products. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1This is a flowchart illustrating the use of sodium bisulfite or sodium bisulfite analogues to address the discoloration of juniper alcohol and juniper alcohol analogues according to the present invention.

[0025] Figure 2 This is a flowchart of the present invention for solving the discoloration of daily chemical products containing juniper alcohol and juniper alcohol analogues using sodium bisulfite solution or sodium bisulfite analogue solution. Detailed Implementation

[0026] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0027] Please see Figure 1 and Figure 2 , Figure 1 This is a flowchart illustrating the use of sodium bisulfite or sodium bisulfite analogues to address the discoloration of juniper alcohol and juniper alcohol analogues according to the present invention. Figure 2 This is a flowchart of the present invention for solving the discoloration of daily chemical products containing juniper alcohol and juniper alcohol analogues using sodium bisulfite solution or sodium bisulfite analogue solution.

[0028] This invention provides a method for solving the problem of non-discoloration of juniper alcohol and its analogues, comprising the following:

[0029] Sodium bisulfite or sodium bisulfite analogues can be used to resolve the discoloration of juniper alcohol and its analogues.

[0030] Sodium bisulfite solution or sodium bisulfite analogue solution can be used to resolve discoloration of daily chemical products containing juniper alcohol and juniper alcohol analogues.

[0031] Examples of relevant chemical equations:

[0032] 1. Preparation of sodium bisulfite (usually obtained by reacting sulfur dioxide with sodium hydroxide or sodium carbonate):

[0033] SO2 + NaOH → NaHSO3

[0034] SO2 + Na2CO3 → NaHSO3 + NaHCO3

[0035] 2. Sodium bisulfite reacts with acid (releasing sulfur dioxide gas):

[0036] NaHSO3 + HCl → NaCl + SO2↑ + H2O

[0037] 3. Oxidation of sodium bisulfite (can be oxidized to sulfate):

[0038] 2NaHSO3 + O2 → Na2SO4 + H2O

[0039] The specific method for resolving the discoloration of juniper alcohol and its analogues using sodium bisulfite or sodium bisulfite analogues is as follows:

[0040] S1. Prepare sodium bisulfite or a sodium bisulfite analogue;

[0041] S2. Sodium bisulfite and sodium bisulfite analogues are added to the mother liquor of juniper alcohol or juniper alcohol analogues before crystallization using a feeder, so that sodium bisulfite or sodium bisulfite analogues are fully dissolved.

[0042] In this specific embodiment, the content of sodium bisulfite or sodium bisulfite analogue is less than or equal to 10%. The feeder used is a loss-in-weight feeder: the feed amount is controlled by real-time monitoring of material weight changes, with an accuracy of ±1g.

[0043] S3. After dissolution, crystallize, bottle, inspect the finished product, and put it into storage.

[0044] The specific method for resolving discoloration in daily chemical products containing juniper alcohol and its analogues using sodium bisulfite solution or sodium bisulfite-like solution is as follows:

[0045] S1. Prepare a sodium bisulfite solution or a sodium bisulfite analogue solution;

[0046] S2. Sodium bisulfite or sodium bisulfite analogues are added to the main ingredients of daily chemical products containing cypress alcohol or cypress alcohol analogues via a feeder.

[0047] In this specific embodiment, the content of sodium bisulfite or sodium bisulfite analogue is less than or equal to 10%. The feeder used is a loss-in-weight feeder: the feed amount is controlled by real-time monitoring of material weight changes, with an accuracy of ±1g.

[0048] S3. After mixing, proceed with bottling, finished product inspection, and warehousing.

[0049] The analogue of sodium bisulfite is one of bisulfite, sulfite, and thiosulfate;

[0050] The bisulfite is one of potassium bisulfite, calcium bisulfite, ammonium bisulfite, and magnesium bisulfite.

[0051] The sulfite is one of sodium sulfite, potassium sulfite, calcium sulfite, and magnesium sulfite.

[0052] The thiosulfate is one of sodium thiosulfate or potassium thiosulfate.

[0053] Similar substances to sodium bisulfite may also include sulfurous acid (H2SO3, unstable, easily decomposes into SO2 and H2O); sodium dithionite (Na2S2O4, sodium hydrosulfite, strong reducing agent); and sulfur dioxide (SO2, gas, dissolves in water to form sulfurous acid).

[0054] The method of the present invention for solving the problem of discoloration of juniper alcohol and juniper alcohol analogues is specifically used by employing sodium bisulfite or sodium bisulfite analogues to solve the discoloration of juniper alcohol and juniper alcohol analogues.

[0055] A sodium bisulfite solution or a sodium bisulfite analogue solution is used to solve the discoloration problem in daily chemical products containing juniper alcohol and juniper alcohol analogues. This method solves the technical problem in the prior art where juniper alcohol and juniper alcohol analogues will discolor during vacuum storage and direct addition to daily chemical products.

[0056] Physical properties of cypress alcohol:

[0057] • Molecular weight: 164.201.

[0058] Density: 1.1 ± 0.1 g / cm³ 3 .

[0059] Melting point: 50-52℃.

[0060] Boiling point: 303.4±35.0℃.

[0061] Flash point: 128.1±18.5℃.

[0062] Key factors in the crystallization process of Hinokitiol:

[0063] 1. Crystallization temperature:

[0064] • Low-temperature crystallization (e.g., 0-10°C) may produce finer crystals.

[0065] 2. Crystallization time:

[0066] Slow crystallization typically takes anywhere from a few hours to 24 hours.

[0067] 3. Stirring speed

[0068] • Low-speed stirring (e.g., 100-300 rpm) helps to form uniform crystals.

[0069] The solvent used is ethanol.

[0070] Process flow:

[0071] 1. Dissolution steps: First, dissolve juniper alcohol in ethanol heated to about 70-80°C until a saturated solution is formed.

[0072] 2. Cooling step: Subsequently, the solution needs to be slowly cooled to the 0-10℃ range, while maintaining a stirring speed of 200-500 rpm during this process.

[0073] 3. Cultivating crystals: Next, let it stand under these conditions for 12-24 hours to allow the crystals to grow fully.

[0074] 4. Filtration step: Finally, the formed crystals are collected by suction filtration and washed with cold water or a suitable solvent to remove any residual impurities.

[0075] The scope of daily chemical products is as follows:

[0076] I. Bath and Cleaning Products:

[0077] Shampoo;

[0078] Cleanses the scalp and hair of oil, dirt, and excess keratin.

[0079] It has multiple functions such as nourishing, dandruff removal, and preventing hair loss.

[0080] body wash;

[0081] Used to cleanse body skin and remove dirt and sweat.

[0082] Some products have whitening, moisturizing, and skin-soothing effects.

[0083] soap;

[0084] Traditional cleaning products can effectively clean the skin.

[0085] Including different types such as general cleaning, sterilization and disinfection, and moisturizing.

[0086] handwashing fluid;

[0087] Specially formulated for hand cleaning, gentle and non-irritating.

[0088] Some contain antibacterial ingredients, which can prevent the spread of disease.

[0089] II. Skincare and Beauty Products:

[0090] Skin care products;

[0091] This includes face creams, lotions, toners, and face masks.

[0092] It is used for moisturizing, hydrating, whitening, anti-wrinkle, etc., to meet different skin types and needs.

[0093] cosmetic;

[0094] Makeup products such as foundation, lipstick, eyeshadow, and blush.

[0095] Used to enhance appearance and change makeup style.

[0096] III. Oral Care Products:

[0097] toothpaste;

[0098] Cleans teeth and prevents cavities and periodontal disease.

[0099] It has different effects such as whitening, desensitizing, and mothproofing.

[0100] toothbrush;

[0101] Use with toothpaste to clean the surface and crevices of your teeth.

[0102] It comes in two types: manual and electric.

[0103] Mouthwash;

[0104] Cleans the mouth, sterilizes and disinfects, and improves breath.

[0105] Use when it's inconvenient to brush your teeth.

[0106] IV. Cleaning Products:

[0107] washing powder;

[0108] Used for washing clothes and removing stains.

[0109] It includes types such as the regular type and the enzyme-added type.

[0110] Laundry detergent;

[0111] It is mild in nature, easily soluble, and has low irritation to clothing and skin, while possessing strong stain removal capabilities.

[0112] Dishwashing liquid;

[0113] Clean tableware, kitchen utensils, etc., removing grease and food residue.

[0114] V. Fragrances:

[0115] perfume;

[0116] A liquid with a unique fragrance, used to enhance personal charm and improve body odor.

[0117] Air freshener;

[0118] Eliminates indoor odors and releases a pleasant fragrance.

[0119] They come in various forms, including sprays, solids, and liquids.

[0120] Scented candles;

[0121] It releases fragrance through burning, creating a comfortable atmosphere.

[0122] It also serves a decorative purpose.

[0123] VI. Household Cleaning Products:

[0124] Glass cleaner;

[0125] Clean the glass surface to remove stains and watermarks, making the glass bright and clear.

[0126] Furniture cleaner;

[0127] Used for cleaning furniture made of different materials such as wood and leather.

[0128] It removes stains while protecting the furniture surface.

[0129] Floor cleaner;

[0130] Cleans floors of all materials, removing dirt and footprints, and preventing damage to the floors.

[0131] VII. Hair Styling:

[0132] hairspray;

[0133] Fixes the hair shape, making the hairstyle last longer.

[0134] mousse;

[0135] It adds volume and dimension to the hair, while also providing some styling effect.

[0136] Hair wax;

[0137] Create various hairstyles to achieve a natural and stylish look.

[0138] VIII. Feminine Care Products:

[0139] sanitary napkin;

[0140] Hygiene products used by women during menstruation absorb menstrual blood and keep the private area clean and dry.

[0141] Tampons;

[0142] It can be inserted into the vagina to absorb menstrual blood and is suitable for use in situations such as exercise.

[0143] Feminine hygiene solution;

[0144] Cleaning and caring for the female private parts helps maintain pH balance and prevent infection.

[0145] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A method for solving the problem of discoloration of juniper alcohol and its analogues, characterized in that, Including the following: Sodium bisulfite or sodium bisulfite analogues can be used to resolve the discoloration of juniper alcohol and its analogues. Sodium bisulfite solution or sodium bisulfite analogue solution can be used to resolve discoloration of daily chemical products containing juniper alcohol and juniper alcohol analogues.

2. The method for solving the problem of discoloration of juniper alcohol and its analogues as described in claim 1, characterized in that, The specific method for resolving the discoloration of juniper alcohol and its analogues using sodium bisulfite or sodium bisulfite analogues is as follows: Prepare sodium bisulfite or a sodium bisulfite analogue; Sodium bisulfite and its analogues are added to the mother liquor of juniper alcohol or its analogues before crystallization using a feeder, so that the sodium bisulfite or its analogues are fully dissolved. After dissolution, the product is crystallized, bottled, inspected, and then stored.

3. The method for solving the problem of discoloration of juniper alcohol and its analogues as described in claim 1, characterized in that, The specific method for resolving discoloration in daily chemical products containing juniper alcohol and its analogues using sodium bisulfite solution or sodium bisulfite-like solution is as follows: Prepare a sodium bisulfite solution or a sodium bisulfite analogue solution; Sodium bisulfite or sodium bisulfite analogues are added to the main ingredients of daily chemical products containing cypress alcohol or cypress alcohol analogues using a feeding machine; After mixing, proceed with bottling, finished product inspection, and warehousing.

4. The method for solving the problem of discoloration of juniper alcohol and its analogues as described in claim 2 or 3, characterized in that, The feeder used is a loss-in-weight feeder: the feed amount is controlled by real-time monitoring of material weight changes, with an accuracy of ±1g.

5. The method for solving the problem of discoloration of juniper alcohol and its analogues as described in claim 4, characterized in that, The analogue of sodium bisulfite is one of bisulfite, sulfite, and thiosulfate.

6. The method for solving the problem of discoloration of juniper alcohol and its analogues as described in claim 5, characterized in that, The bisulfite is one of potassium bisulfite, calcium bisulfite, ammonium bisulfite, and magnesium bisulfite.

7. The method for solving the problem of discoloration of juniper alcohol and its analogues as described in claim 6, characterized in that, The sulfite is one of sodium sulfite, potassium sulfite, calcium sulfite, and magnesium sulfite.

8. The method for solving the problem of discoloration of juniper alcohol and its analogues as described in claim 7, characterized in that, The thiosulfate is one of sodium thiosulfate or potassium thiosulfate.