Detergent composition that maintains the pH balance of the fabric surface and preserves the feel

Abstract

The present invention relates to a detergent composition that maintains pH balance on the fiber surface and preserves the feel of the fiber, and more specifically, to an improved detergent composition that maintains pH balance on the fiber surface and preserves the feel of the fiber by suppressing alkaline residue of detergent components during the washing process and maintaining pH balance on the fiber surface, thereby preventing fiber hardening and dryness after washing and preserving a soft fiber feel.

Description

Technology Field

[0001] The present invention relates to a detergent composition that maintains pH balance on the fiber surface and preserves the feel of the fiber, and more specifically, to an improved detergent composition that maintains pH balance on the fiber surface and preserves the feel of the fiber by suppressing alkaline residue of detergent components during the washing process and maintaining pH balance on the fiber surface, thereby preventing fiber hardening and dryness after washing and preserving a soft fiber feel. Background Technology

[0002] Generally, detergent used for laundry is a substance added when washing fabrics to help clean them.

[0003] These laundry detergents are mainly used in solid form, such as powder or granules, and recently, liquid detergents are also being sold.

[0004] Furthermore, commercially available laundry detergents are primarily developed and used with an emphasis on foaming ability, cleaning power, ease of use, and volume control.

[0005] These general detergents contain high concentrations of surfactants and alkaline compositions to ensure cleaning power, but this causes damage to skin proteins and lipid layers, and weakens the skin barrier.

[0006] In particular, conventional detergents often use compositions with a high alkali ratio to achieve high cleaning power.

[0007] As a result, alkali residue may remain on the fibers after washing, causing dryness, stiffness, and a deterioration in surface condition.

[0008] Therefore, a buffered detergent composition is required that maintains cleaning power while stably maintaining a pH range of 6.5 to 8.0. Prior art literature

[0009] Korean Published Patent No. 10-2023-0114137 (Aug. 1, 2023) Title: Eco-friendly Laundry Detergent The problem to be solved

[0010] The present invention was created to solve the various problems of the prior art as described above, and its main purpose is to provide an improved detergent composition that maintains pH balance on the fiber surface and preserves the texture, which prevents fiber hardening and dryness after washing by suppressing alkaline residue of detergent components during the washing process and maintaining pH balance on the fiber surface, thereby preserving a soft fiber texture. means of solving the problem

[0011] The present invention provides, as a means to achieve the above-mentioned objective, a detergent composition for maintaining fiber surface pH balance and preserving tactile sensation, characterized by comprising 30% by weight of alkyl glucoside, 5% by weight of gluconolactone, 20% by weight of sodium cocoyl isethionate, 5% by weight of citric acid, 10% by weight of sodium carbonate peroxy hydrate, 10% by weight of arginine, 7% by weight of sodium hydrogen carbonate, 3% by weight of betaine, and 10% by weight of sodium sesquicarbonate dihydrate. Effects of the invention

[0012] According to the present invention, by suppressing alkaline residue of detergent components during the washing process and maintaining the pH balance of the fiber surface, an improved effect can be obtained to prevent fiber hardening and dryness after washing, thereby preserving a soft fiber texture. Specific details for implementing the invention

[0013] Hereinafter, preferred embodiments according to the present invention will be described in more detail.

[0014] Since embodiments according to the concept of the present invention may be subject to various modifications and may take various forms, it should be understood that they include all modifications, equivalents, and substitutions that fall within the spirit and technical scope of the present invention.

[0015] The fiber surface pH balance-maintaining and tactile-preserving detergent composition according to the present invention has the characteristic of stabilizing the pH through a combination of a pH buffering system and a nonionic surfactant, and suppressing the accumulation of alkaline residues, thereby maintaining the tactile feel and flexibility of the fiber even after washing.

[0016] More specifically, the detergent composition according to the present invention consists of 30% by weight of alkyl glucoside, 5% by weight of gluconolactone, 20% by weight of sodium cocoyl isethionate, 5% by weight of citric acid, 10% by weight of sodium carbonate peroxy hydrate, 10% by weight of arginine, 7% by weight of sodium hydrogen carbonate, 3% by weight of betaine, and 10% by weight of sodium sesquicarbonate dihydrate.

[0017] At this time, alkyl glucoside is an eco-friendly, low-irritation, non-ionic surfactant that does not carry an electric charge and therefore does not denature skin proteins. Furthermore, it has the advantage of being safe to use because it causes very low skin irritation.

[0018] In addition, gluconolactone is a lactone derived from corn and other sources that gradually transforms into gluconic acid upon contact with water. It has an excellent ability to gradually lower and maintain a constant pH, contributing to the precise setting of pH 6.5 to 8.0 during detergent manufacturing.

[0019] Furthermore, Sodium Cocoyl Isethionate is a detergent that functions as a natural plant-based surfactant derived from coconut. It is obtained as a white powder through the combination of fatty acids extracted from coconut oil and isethionic acid; it improves cleaning power by reducing the interfacial tension of fabrics, allowing oil, water, and dust to mix together.

[0020] In addition, citric acid is essential for neutralizing strong alkaline cleaning ingredients to precisely adjust the pH to the target range of 6.5 to 8.0, and it also performs a buffering function to fix the pH of the detergent so that it does not change rapidly due to external factors.

[0021] In addition, sodium carbonate peroxyhydrate is Na2CO4·H2O formed by mixing sodium carbonate and hydrogen peroxide, and functions as a 100% oxygen-based disinfectant and bleaching agent that contains no fluorescent whitening agents or surfactants. In particular, because it is in the form where hydrogen peroxide is attached to sodium carbonate, it dissolves easily when it comes into contact with water, increasing its activity and enhancing its disinfection and bleaching functions.

[0022] In addition, arginine is a basic amino acid that gently raises the pH to between 6.5 and 8.0, and is eco-friendly due to its excellent biodegradability as well as its skin moisturizing effect.

[0023] In addition, sodium hydrogen carbonate induces bending in the fibers through the foaming force resulting from expansion, thereby enhancing the cleaning effect.

[0024] In addition, betaine is a natural moisturizer derived from sugar beets that neutralizes the irritation of surfactants and provides a skin-soothing effect.

[0025] In addition, sodium sesquicarbonate dihydrate is a substance corresponding to CAS No. 6106-20-3, and is a natural ingredient that has excellent cleaning power against oil, sweat, sebum, blood, and protein stains while reducing skin irritation.

[0026] Meanwhile, in the present invention, 10 parts by weight of sodium gluconate, 10 parts by weight of propanediol, 8 parts by weight of alkyl polyglucoside (APG), 7.5 parts by weight of polyquaternium, and 5.5 parts by weight of benzoguanamine may be further added to 100 parts by weight of the detergent composition.

[0027] At this time, sodium gluconate is a natural ingredient derived from corn, is highly biodegradable and harmless to the human body, and contributes significantly to suppressing the generation of detergent residue.

[0028] In addition, propanediol is a natural solvent obtained from corn fermentation that helps moisturize the skin, facilitates the transparent dissolution of detergent ingredients, and contributes to suppressing detergent residue.

[0029] In particular, alkyl polyglucosides (APGs) are sugar-based surfactants extracted from coconut or corn, which are highly biodegradable, cause little skin irritation, and have excellent oil removal capabilities.

[0030] In addition, Polyquaternium is a cationic polymer that electrostatically binds to the skin and fiber surfaces to form a smooth protective film, providing a conditioning effect that remains on the skin even after cleansing to prevent dryness.

[0031] Also, Benzoguanamine is a substance corresponding to CAS number 91-76-9 that inhibits shrinkage deformation and inhibits the generation of static electricity.

[0032] Furthermore, in the present invention, 5.5 parts by weight of sodium citrate, 10 parts by weight of coco-glucoside, 10 parts by weight of HPMC (hydroxypropylmethylcellulose), 5 parts by weight of tocopheryl acetate, and 5 parts by weight of glutamate diacetate (GLDA) may be further added to 100 parts by weight of the detergent composition.

[0033] In this case, sodium citrate lowers the pH and acts as a buffer to prevent rapid changes in pH.

[0034] In addition, Coco-Glucoside is considered one of the mildest cleaning ingredients and contributes effectively to breaking down stubborn dirt.

[0035] In particular, HPMC (hydroxypropylmethylcellulose) has excellent moisturizing and film-forming functions, which help maintain moisture on the skin and reduce direct contact with external chemicals.

[0036] In addition, tocopheryl acetate prevents oxidation of the detergent composition and induces stabilization.

[0037] In addition, glutamate diacetate (GLDA) is a plant-based amino acid-based natural chelating agent that has the effect of preventing limescale and enhancing cleaning power.

[0038] On the other hand, in the present invention, the alkyl glucoside is preferably lauryl glucoside, and rather than using it alone, it is particularly preferred to use it in the form of a mixture in which 5 parts by weight of phytic acid, 10 parts by weight of panthenol, 15 parts by weight of glycolipids, and 10 parts by weight of aloe vera extract are added based on 100 parts by weight of the alkyl glucoside.

[0039] Here, phytic acid is a natural organic acid extracted from rice bran or seeds. It serves to lower pH while simultaneously acting as a powerful natural chelator (metal ion blocking agent), which not only provides excellent residue inhibition but also combines with minerals in water to prevent laundry discoloration and enhance cleaning power.

[0040] In particular, Panthenol strengthens the skin's protective barrier along with its fabric softening effect, preventing roughness during hand washing. In other words, as a precursor to Vitamin B5 (pantothenic acid), it is excellent for moisturizing the skin and strengthening the skin barrier.

[0041] In addition, glycolipids are natural surfactants extracted through microbial fermentation. They form a smooth layer with small particles that directly reduces skin friction. Therefore, they contribute to preventing skin troubles by forming a lubricating layer on the skin during hand washing, thereby suppressing friction with the skin.

[0042] In addition, the polysaccharide components of Aloe Vera extract form a thin moisture film on the skin, contributing to soothing the skin from detergent irritation and alleviating friction.

[0043] On the other hand, in the present invention, sodium cocoyl isethionate is not used alone, but is particularly preferred to be used in the form of a mixture in which 5.5 parts by weight of succinic acid, 10 parts by weight of alcohol ethoxylates, 10 parts by weight of apple wash (sodium cocoyl apple amino acids), 10 parts by weight of glyceryl linoleate, and 10 parts by weight of capric triglyceride are added based on 100 parts by weight of sodium cocoyl isethionate.

[0044] In this case, succinic acid is a natural organic acid found in shellfish and amber; it has excellent pH-regulating capabilities and possesses antibacterial and antioxidant effects, which prevent the proliferation of microorganisms in the detergent. In particular, its high compatibility with other ingredients contributes to increasing the transparency of the detergent and reducing the occurrence of precipitates (residues).

[0045] In particular, fatty alcohol ethoxylates are nonionic surfactants that have excellent solubility even in cold water and contribute to preventing detergent from remaining on fibers by rapidly dispersing oil stains into water and minimizing the amount of residue.

[0046] In addition, Apple Wash (Sodium Cocoyl Apple Amino Acids) is based on amino acids extracted from apple juice and leaves a lubricating film with a soft texture on the skin even after washing, preventing skin trouble caused by reduced friction.

[0047] In addition, Glyceryl Linoleate is a component derived from plant fatty acids that is similar to the skin's lipid structure and protects the skin by immediately replenishing the oil lost during the cleansing process.

[0048] In addition, Caprylic Triglyceride is a refined liquid oil component extracted from plant-derived fatty acids, such as coconut oil or canola oil. It is characterized by powerful skin lubrication and the formation of a protective barrier, preventing skin irritation caused by reduced friction.

[0049] The following describes the embodiments.

[0050] The following examples were made to evaluate the fiber surface pH balance and tactile preservation detergent composition according to the present invention.

[0051] [Example 1]

[0052] A first sample of a detergent composition was prepared by comprising 30% by weight of alkyl glucoside, 5% by weight of gluconolactone, 20% by weight of sodium cocoyl isethionate, 5% by weight of citric acid, 10% by weight of sodium carbonate peroxy hydrate, 10% by weight of arginine, 7% by weight of sodium hydrogen carbonate, 3% by weight of betaine, and 10% by weight of sodium sesquicarbonate dihydrate.

[0053] [Example 2]

[0054] A second sample of a detergent composition was prepared by further adding 10 parts by weight of sodium gluconate, 10 parts by weight of propanediol, 8 parts by weight of alkyl polyglucoside (APG), 7.5 parts by weight of polyquaternium, and 5.5 parts by weight of benzoguanamine to the above Example 1.

[0055] [Example 3]

[0056] A third sample of a detergent composition was prepared by further adding 5.5 parts by weight of sodium citrate, 10 parts by weight of coco-glucoside, 10 parts by weight of HPMC (hydroxypropylmethylcellulose), 5 parts by weight of tocopheryl acetate, and 5 parts by weight of glutamate diacetate (GLDA) to the above Example 2.

[0057] As a result of evaluating the cleaning power of the first, second, and third samples, the BULK DENSITY, particle size, appearance and scent, effective oxygen content, moisture content, and pH (1% Water Soln.) all significantly exceeded the standard product, and all test evaluation criteria were passed.

[0058] In addition, a sensory evaluation was conducted for 6 months on 10 women in their 30s and 10 women in their 40s regarding roughness after hand washing of samples 1, 2, and 3, and the results showed that no skin barrier issues, skin problems, or moisture loss occurred.

[0059] In addition, the fiber pH after washing was an average of 7.1, so no alkaline residue accumulation occurred.

[0060] Meanwhile, the detergent composition according to the present invention can be applied to liquid laundry detergents, liquid fabric softeners, capsule laundry detergents, dryer sheets, fabric deodorizers, etc.

[0061] Meanwhile, the detergent composition according to the present invention can be applied to liquid laundry detergents, liquid fabric softeners, capsule laundry detergents, dryer sheets, fabric deodorizers, etc.

Claims

Claim 1 It is composed of 30 wt% alkyl glucoside, 5 wt% gluconolactone, 20 wt% sodium cocoyl isethionate, 5 wt% citric acid, 10 wt% sodium carbonate peroxy hydrate, 10 wt% arginine, 7 wt% sodium hydrogen carbonate, 3 wt% betaine, and 10 wt% sodium sesquicarbonate dihydrate, wherein the sodium cocoyl isethionate is not used alone, and based on 100 wt% of sodium cocoyl isethionate, 5.5 wt% succinic acid, A detergent composition for maintaining fiber surface pH balance and preserving tactile feel, characterized by being used in the form of a mixture containing 10 parts by weight of fatty alcohol ethoxylates, 10 parts by weight of Sodium Cocoyl Apple Amino Acids, 10 parts by weight of Glyceryl Linoleate, and 10 parts by weight of Capric Triglyceride. Claim 2 A detergent composition for maintaining fiber surface pH balance and preserving tactile sensation according to claim 1, characterized in that the alkyl glucoside is used in the form of a mixture containing 5 parts by weight of phytic acid, 10 parts by weight of panthenol, 15 parts by weight of glycolipids, and 10 parts by weight of aloe vera extract, based on 100 parts by weight of the alkyl glucoside, rather than being used alone. Claim 3 delete

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