Formulation and nanoparticles of silica for scalp strengthening, scalp strengthening textile fabric and a method of manufacturing thereof

Silica-based nanoparticles integrated into textile fabrics through a sol-gel process form covalent bonds, addressing scalp concerns and maintaining effectiveness despite washing, offering a durable and cost-efficient scalp-strengthening solution.

WO2025183551A1PCT designated stage Publication Date: 2025-09-04BIORISM HOLDINGS SDN BHD
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Patent Information

Application Number
PCT/MY2025/050012
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-02-27
Filing Date
2025-02-21
Publication Date
2025-09-04

AI Technical Summary

Technical Problem

Conventional textile fabrics used in headgears fail to effectively address scalp-related concerns such as sensitivity, irritation, and hair loss due to prolonged wear, and existing methods of incorporating active ingredients are ineffective under domestic washing conditions.

Method used

A method involving silica-based nanoparticles is used to integrate scalp-strengthening active ingredients into textile fabrics through a sol-gel process, forming covalent bonds with cellulose fibers, ensuring durability and resistance to abrasive forces during washing.

Benefits of technology

The method provides a durable and cost-effective solution that maintains scalp-strengthening properties over multiple wash cycles, enhancing the fabric's efficacy and reducing the need for frequent re-application.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a formulation of a compound having scalp-strengthening active ingredient, R2 embedded onto a cellulose-based textile fabric, R1. The present invention further discloses a scalp-strengthening textile fabric (100) comprising a composition of nanoparticles (102) formed through a sol-gel process, at least one scalp strengthening active ingredient (104), and a cellulose polymer (106) based textile fabric (110). Moreover, the present invention also discloses a method (200) for producing a scalp strengthening textile fabric. The method (200) involves preparing a water miscible solution of the active ingredient and hydrolysable silane, forming a sol-gel embedded in an emulsion, adjusting pH, and evaporating the solvent to yield active ingredient-loaded nanoparticles. This formulation is applied to the textile fabric, creating a durable scalp- strengthening textile fabric with covalent linkages between the cellulose polymer and active ingredient-loaded nanoparticles.
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Description

[0001]

[0002] The present invention relates to a formulation with silica-based nanoparticles, a scalp strengthening textile fabric and a method of manufacturing thereof. In particular, the present invention provides a method of manufacturing a textile fabric with silica based nanoparticles to inculcate scalp strengthening or hair strengthening nature in the textile fabric. Additionally, the present invention further provides a scalp strengthening textile fabric wearable by a user having scalp-strengthening properties thereof.

[0003] BACKGROUND ART

[0004] Textile headgears, encompassing a variety of items such as head scarves, hijabs, turbans, and caps, serve cultural, religious, and fashion purposes. Despite their widespread use, prolonged and intensive adornment of these headgears has been associated with significant scalp-related concerns. Research indicates that the aggressions resulting from such extended wear can disrupt the scalp barrier function, leading to issues like sensitivity, irritation, greasiness, and dandruff — key factors contributing to hair loss and compromised hair health.

[0005] The inherent challenge in addressing these scalp-related concerns lies in the conventional approaches currently available. Existing solutions typically involve the direct application of washes, sprays, or lotions on the hair or scalp, often requiring frequent re-application for optimal results. Unfortunately, ordinary textiles commonly used in the production of headgears are ill-equipped to effectively tackle these scalp concerns. This presents a pressing need for a novel and efficient solution that can enhance the functional attributes of textiles to strengthen the scalp.

[0006] Currently, there is a glaring gap in the market concerning textiles that possess the capability to address scalp concerns associated with extended headgear use. Conventional methods, such as the incorporation of active ingredients through direct application or mixed with polymeric materials, have proven ineffective in providing a lasting solution. For instance, nanoparticle formulations, while promising, face challenges when it comes to fixation onto fibers. The application of active ingredients in a form mixed with polymeric materials and dried on fibers, although suitable for technical textiles, falls short in the context of garments, especially headgears, subjected to frequent domestic washes. The abrasion forces generated during washing, particularly in machine wash cycles, compromise the efficacy of active ingredients, rendering them ineffective after just a few washes. This underscores the urgent need for an innovative textile technology that can withstand the rigors of domestic washing and consistently deliver scalp-strengthening benefits over an extended period.

[0007] Numerous textile fabrics have been developed in the application of scalp strengthening cosmetic / pharmaceutical industry.

[0008] One example of such textile fabric is disclosed in United States Patent No US 11434586 B2 (hereinafter referred to as US 586 B2 Patent) entitled “Filaments comprising an active agent nonwoven webs and methods for making same” having a filing date of September 12, 2011 , Applicant: Procter and Gamble Co. The US 586 B2 Patent discloses a nonwoven web comprising one or more particulate active agents and a plurality of interentangled, polar solvent-soluble, non-thermoplastic filaments comprising one or more filament-forming materials. The US 586 B2 Patent further discloses that one or more filament-forming materials comprises a polar solvent-soluble material having a hydroxyl polymer and one or more active agents included in the plurality of inter-entangled, polar solvent-soluble, non-thermoplastic filaments to produce an intended effect in an environment external to the plurality of inter-entangled, polar solvent-soluble, nonthermoplastic filaments.

[0009] Another example of such textile fabric is disclosed in United States Patent No US 8377427 B2 (hereinafter referred to as US 427 B2 Patent) entitled “Cosmetic composition based on nanoparticles and on water-soluble organic silicon compounds” having a filing date of March 29, 2001, Applicant: LOREAL SA. The US 427 B2 Patent discloses a composition having a cosmetically acceptable medium containing water and / or a solvent, metal, metal oxide, metal carbide or nitride nanoparticles or mixtures thereof. The composition further includes one or several organic silicon compounds soluble in water and / or in the solvent, having one, two or three silicon atoms, and at least two hydroxyl or hydrolysable groups per molecule. The US 427 B2 Patent further discloses that the disclosed composition is applicable to hair care compositions.

[0010] A further example of such textiles fabric is disclosed in US Patent Publication No. US 6821509 B2 (hereinafter referred to as US 509 B2 Patent) entitled “Nanoscopic hair care products”, having a filing date of October 11 , 2002, Applicant: Soane Labs LLC. The US 509 B2 Patent discloses a hair treatment preparation comprising a payload in an intimate relationship to a polymeric nanostructure, wherein the polymeric nanostructure being reactive to hair or capable of being immobilized onto or in hair. The US 509 B2 Patent further discloses that the nanoscopic nature of the entities being engineered ensures three distinct characteristics. First, the imparted attribute can be either nearly permanent or semi-permanent, depending on the attachment chemistry. Second, the nanoscopic entities are invisibly small. Their presence does not deteriorate the hand or feel of the hair. Third, the nano-technology approach is infinitely flexible and adaptable.

[0011] As outlined above, various scalp strengthening textile fabrics have been developed. However, none of the prior arts disclose such a textile fabric, or method of treating the textile fabric that at least overcomes the aforementioned drawbacks.

[0012] In light of the foregoing discussion, there exists a need to provide an improved method to treat textiles fabric for providing scalp-strengthening properties, and to overcome at least the aforementioned drawbacks.

[0013] SUMMARY OF INVENTION

[0014] The present invention relates to a formulation with silica-based nanoparticles, a scalp strengthening textile fabric and a method of manufacturing thereof. In particular, the present invention provides a method of manufacturing a textile fabric with silica based nanoparticles to inculcate scalp strengthening or hair strengthening nature in the textile fabric. Additionally, the present invention further provides a scalp strengthening textile fabric wearable by a user having scalp-strengthening properties thereof.

[0015] One aspect of the present invention provides a formulation of a compound of Formula I having scalp strengthening active ingredient embedded onto a textile fabric using hydrolysable saline compound:

[0016] Formula I

[0017] Wherein ‘R1 ’ is a cellulose based textile fabric, preferably with a linear chain structure of (C6Hi0O5)n; ‘R2’ is the scalp strengthening active ingredient comprising a plurality of polyphenols, preferably (CuH^O^n picetannols; ‘n’ is indicative of repetitive structure units pertaining to R1 and R2; and R3 and R4 consist of either hydroxyl groups or the active ingredient R2 linked to the hydrolysable silane compound through their respective terminal hydroxyl groups.

[0018] Another aspect of the present invention provides that the scalp strengthening active ingredient comprises at least one hydroxyl group at terminal ends thereof, for connecting the active ingredient with the hydrolysable saline.

[0019] A further aspect of the present invention provides that the cellulose based textile fabric comprises at least one hydroxyl groups at terminal ends thereof, for connecting the cellulose based textile fibre with the hydrolysable saline.

[0020] Still another aspect of the present invention provides that the plurality of polyphenols present in the active ingredient is 0.6-1 g / kg.

[0021] Yet another aspect of the present invention provides that the scalp strengthening active ingredient further comprises a fermentation gum derived from sorbitol, the a fermentation gum is a branched saccharide sequence rich in rhamnose, galactose and glucuronic acid.

[0022] Another aspect of the present invention provides a scalp-strengthening textile fabric (100), comprising: a composition of nanoparticles (102) of silica formed through a sol-gel process; at least one scalp strengthening active ingredient (104) adsorbed on the nanoparticles using hydrolysable silane as a binder (108); and a textile fabric (510) comprising a cellulose polymer (106), wherein the cellulose polymer and the formulation of active ingredient loaded silica nanoparticles are linked via glycidyl group in epoxy form.

[0023] A further aspect of the present invention provides that the at least one active ingredient (104) is selected from at least one of: passion fruit extract containing piceatannol compound; and fermentation gum derived from sorbitol, with the fermentation gum containing a branched saccharide sequence rich in rhamnose, galactose and glucuronic acid.

[0024] Still another aspect of the present invention provides that the at least one active ingredient (104) comprises hydroxyl groups for linking the at least one active ingredient (104) with the nanoparticles via covalent bonds.

[0025] Another aspect of the present invention provides a method (200) for producing a scalp strengthening textile fabric , the method (200) comprising steps of: preparing a water miscible solution of at least one scalp strengthening active ingredient and a hydrolysable silane compound (202); adding the solution prepared in step 202 to a solution of sodium silicate and a tensoactive substance, to obtain a first mixture (204); forming a sol-gel by stirring and adjusting a pH level of the first mixture, wherein the sol-gel is formed to be embedded in an emulsion comprising a solvent phase and an aqueous phase, wherein the solvent phase comprises an organic solvent while the aqueous phase comprises the at least one scalp strengthening active ingredient (206); adjusting the pH level to a neutral level and evaporating the solvent phase for forming a formulation of active ingredients loaded nanoparticles, wherein the formulation of the active ingredients loaded nanoparticles is formed in an aqueous dispersion form (208); preparing a textile treatment bath using the formed formulation by applying at least one of dispersant and a thickening agent to the formed formulation (210); and applying the textile treatment bath prepared in step 210 to the textile fabric (212).

[0026] A further aspect of the present invention provides that preparing a water miscible solution of at least one scalp strengthening active ingredient and a hydrolysable silane compound (202) further comprises steps of (300): adding the at least one scalp strengthening active ingredient to the hydrolysable silane to create a second mixture, and thereby stirring the second mixture (302); and allowing the stirred second mixture to sit for 1.5-2.5 hours at a temperature between 10°C and 60°C, to obtain the water miscible solution (304).

[0027] Still another aspect of the present invention provides that forming the sol-gel via stirring and pH adjustment (206) further comprises steps of (400): stirring the first mixture for at least 50 to 70 minutes (402); adding ammonium chloride to the stirred first mixture for changing pH level of the first mixture, to obtain a third mixture (404); and adding acetic acid to the third mixture until the pH decreases to four, forming the sol-gel (406).

[0028] Yet another aspect of the present invention provides that forming the sol-gel by stirring and adjusting the pH level further comprises forming at least one hydrogen covalent bond between at least one hydroxyl, OH group of the active ingredient and silica matrix of the sol-gel.

[0029] A further aspect of the present invention provides that applying the textile treatment bath prepared in step 210 to the textile fabric (212) further comprises steps of (500): padding textile fabric with the textile treatment bath and passing through squeezing rollers (502); treating the textile fabric with hydrolysable silane solution at 100 to 150 degree Celsius, enabling the active ingredients loaded nanoparticles to be surrounded by a film of silane through a condensation polymerization reaction (504) ; and accelerating the condensation polymerization reaction by releasing water during the post-treating step (504) in a customised machinery (506).

[0030] Still another aspect of the present invention provides that treating the textile fabric with hydrolysable silane solution (504) further comprises linking the scalp strengthening active ingredients loaded nanoparticles of the textile treatment bath, with the textile fabric via glycidyl group in epoxy form.

[0031] An additional aspect of the present invention provides that adding the at least one active ingredient to the hydrolysable silane (302) further comprises selecting the at least one active ingredient from at least one of: passion fruit extract containing piceatannol compound; and fermentation gum derived from sorbitol, with the fermentation gum containing a branched saccharide sequence rich in rhamnose, galactose and glucuronic acid.

[0032] The present invention consists of features and a combination of parts hereinafter fully described and illustrated in the accompanying drawings, it being understood that various changes in the details may be made without departing from the scope of the invention or sacrificing any of the advantages of the present invention. BRIEF DESCRIPTION OF ACCOMPANYING DRAWINGS

[0033] To further clarify various aspects of some embodiments of the present invention, a more particular description of the invention will be rendered by references to specific embodiments thereof, which are illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail through the accompanying drawings in which:

[0034] Figure 1 illustrates a schematic illustration of a scalp-strengthening textile fabric, in accordance with an embodiment of the present invention;

[0035] Figure 2 is a flowchart illustrating a method for producing a scalp strengthening textile fabric, in accordance with an embodiment of the present invention;

[0036] Figure 3 is a flowchart illustrating a method for preparing a water miscible solution of at least one scalp strengthening active ingredient and a hydrolysable silane compound, in accordance with an embodiment of the present invention.;

[0037] Figure 4 is a flowchart illustrating a method for forming the sol-gel via stirring and pH adjustment, in accordance with an embodiment of the present invention;

[0038] Figure 5 is a flowchart illustrating a method for applying the textile treatment bath prepared in step 210 to the textile fabric, in accordance with an embodiment of the present invention;

[0039] DETAILED DESCRIPTION OF THE DRAWINGS

[0040] The present invention relates to a formulation with silica-based nanoparticles, a scalp strengthening textile fabric and a method of manufacturing thereof. In particular, the present invention provides a method of manufacturing a textile fabric with silica based nanoparticles to inculcate scalp strengthening or hair strengthening nature in the textile fabric. Additionally, the present invention further provides a scalp strengthening textile fabric wearable by a user having scalp-strengthening properties thereof.

[0041] Hereinafter, this specification will describe the present invention according to the preferred embodiments. It is to be understood that limiting the description to the preferred embodiments of the invention is merely to facilitate discussion of the present invention and it is envisioned without departing from the scope of the appended claims.

[0042] The present invention discloses a scalp-strengthening textile fabric, wherein the active ingredient for scalp strengthening is integrated into the textile fibers through the innovative application of nanotechnology. This approach not only enhances the efficacy of the fabric but also establishes a more cost-efficient and environmentally friendly method compared to traditional techniques.

[0043] The utilization of nanoparticles in the production of the scalp-strengthening textile fabric proves to be advantageous over conventional methods. In the existing practices, the incorporation of a substantial quantity of the active ingredient is repeatedly required to ensure its longevity on the textile fibers after multiple washes. This leads to increased costs, generation of by-product wastes, and a higher carbon footprint. In contrast, the present invention demonstrates that a similar, if not superior, lasting effect can be achieved with nanoparticles, using significantly fewer active ingredients and minimizing the need for repetitive application processes.

[0044] Moreover, conventional textile fabrics with incorporated active ingredients are susceptible to erosion during washing. The present invention addresses this challenge by incorporating nanoparticles that exhibit increased resistance to abrasive forces during washing. These nanoparticles are strategically positioned between the fibers constituting the textile material, reducing exposure and enhancing durability. The smaller dimensions of nanoparticles provide a unique advantage, as they convey a longer-lasting effect compared to alternative methods of functionalizing surfaces on various substrates, thanks to their reduced susceptibility to abrasion forces acting on those surfaces. The present invention discloses a formulation of a compound of Formula I having scalp strengthening active ingredient embedded onto a textile fabric using hydrolysable saline compound:

[0045] The above formulation encompasses a cellulose-based textile fabric denoted as ‘R characterized by its preferred linear chain structure of (CeHio05)n. Furthermore, ‘R2’ represents the scalp-strengthening active ingredient, consisting of a plurality of polyphenols, particularly (C14H12O4)n picetannols. The variable ‘n’ provided herein denotes the repetitive structure units associated with both ‘RT and ‘R2’.

[0046] Additionally, the above formulation involves 'R3' and 'R4', comprising of either hydroxyl groups or the active ingredient 'R2' linked to a hydrolysable silane compound through their respective terminal hydroxyl groups. These components collectively contribute to the unique composition and functionality of the scalp-strengthening textile fabric described herein.

[0047] In a specific instance, the cellulose-based texxtile fabric denoted as R1 is provided as Formula l(a):

[0048] Formula l(a)

[0049] Furthermore, the scalp-strengthening active ingredient, particularly the piceatannol molecule as provided as Formula l(b):

[0050] Formula 1(b)

[0051] Additionally, the hydrolysable silane is provided as Formula 1(c):

[0052] As provided in above Formulas, the scalp strengthening active ingredient comprises at least one hydroxyl group at terminal ends thereof, for connecting the active ingredient with the hydrolysable saline. Further, the cellulose based textile fabric comprises at least one hydroxyl groups at terminal ends thereof, for connecting the cellulose based textile fibre with the hydrolysable saline.

[0053] According to a certain embodiment of the present invention, the hydroxyl (OH) group of the piceatannol molecule, a specific active ingredient known for its scalp-strengthening properties, is connected to the silica-based particles. This linkage occurs during a modified sol-gel process, as explained further in the detailed description, where the hydrolysable silane serves as a binder promoter, facilitating the formation of silica particles with a high surface area. Upon successful linkage, these piceatannol-bound silica particles exhibit an affinity for textiles. During the finishing process, these particles are attached and bound to the textile material. The nature of this attachment involves potential covalent bonds, contributing to a robust and durable connection between the active ingredient and the textile fabric.

[0054] In a specific instance, the covalent bonds formed during the attachment phase are directed towards the terminal hydroxyl (OH) group of cellulosic fibers inherent in natural textiles. This targeted binding enhances the stability of the nanoparticles on the textile fabric, providing a secure and enduring connection, with the hydrolysable silane playing a pivotal role in this process. Moreover, the versatility of present invention extends to synthetic fibers. In various instances, the bound nanoparticles are not limited to natural fibers but may also find fixation on the surface of synthetic fibers. This adaptability ensures that the invention can be applied across a range of textile materials, both natural and synthetic.

[0055] In yet another embodiment, the plurality of polyphenols present in the active ingredient is 0.6-1 g / kg. Specifically, the plurality of polyphenols present in the active ingredient is 0.8g / kg. It will be appreciated that the plurality of polyphenols has antioxidant and antiinflammatory properties. The high concentration of total polyphenols existing in the active ingredient (up to 0.8 g / kg) contribute to the efficacy of the active ingredient and provide an improved text fabric.

[0056] In a further embodiment, the scalp strengthening active ingredient further comprises a fermentation gum derived from sorbitol, the fermentation gum is a branched saccharide sequence rich in rhamnose, galactose and glucuronic acid.

[0057] Accordingly, the present invention attains a remarkable advancement in the durability and stability of functionalized textiles. The covalent linkage of the OH group of the active ingredient to silica particles, facilitated by the hydrolysable silane, followed by secure attachment to both natural and synthetic fibers, results in textiles with prolonged efficacy. These textiles exhibit resilience against various environmental conditions and endure numerous wash cycles, showcasing the enhanced durability conferred by the inventive process.

[0058] Referring to Figure 1 , there is provided a schematic illustration of a scalp-strengthening textile fabric (100), in accordance with an embodiment of the present invention. The scalp-strengthening textile fabric (100) comprises a composition of nanoparticles (102) of silica formed through a sol-gel process. Furthermore, the scalp-strengthening textile fabric (100) also comprises at least one scalp strengthening active ingredient (104) and a textile fabric (510). Notably, the at least one scalp strengthening active ingredient (104) is adsorbed on the nanoparticles using hydrolysable silane as a binder (108). This binding process ensures a secure attachment of the active ingredient to the silica nanoparticles, contributing to the overall efficacy of the textile fabric. Moreover, the textile fabric (510) comrpises a cellulose polymer (106), wherein the cellulose polymer and the formulation of active ingredient loaded silica nanoparticles are linked via glycidyl group in epoxy form. This cellulose polymer and the formulation of active ingredient- loaded silica nanoparticles establish a connection through the glycidyl group in its epoxy form. This linking mechanism enhances the bond between the cellulose polymer and the active ingredient-loaded nanoparticles, providing a cohesive and durable integration within the textile fabric.

[0059] In a particular embodiment, the composition of nanoparticles integrates hydrophilic or water-soluble products, formed through a modified sol-gel process inspired by Stober et al. This process employs a silicate precursor for silica. Notably, the active ingredient, known for its scalp-strengthening properties, is incorporated into the particles during the nanoparticle synthesis. Subsequently, the active ingredient binds to the textile material post-processing, involving treatment with water, fixing agent, and binder. An inherent advantage of these products lies in their superior antimicrobial properties, characterized by the absence of habituation or bacterial resistance when compared to other antimicrobial alternatives.

[0060] According to an embodiment of the present invention, the scalp-strengthening textile fabric incorporates a selection of the at least one active ingredient (104) from specific sources. The active ingredient may be derived from either passion fruit extract, containing the beneficial piceatannol compound, or a fermentation gum obtained from sorbitol. Notably, the fermentation gum is characterized by a branched saccharide sequence abundant in rhamnose, galactose, and glucuronic acid. This diverse selection of active ingredients enhances the scalp-strengthening properties of the textile fabric, providing a versatile and effective solution.

[0061] Furthermore, the at least one active ingredient (104) of the scalp-strengthening textile fabric exhibits hydroxyl, OH groups. These hydroxyl groups play a pivotal role in establishing robust covalent bonds between the active ingredient and the nanoparticles. As described above, hydrolysable silane acts as a binder between the active ingredient and the textile fabric. Such bonding mechanism ensures a secure and durable attachment, contributing to the overall stability and efficacy of the scalp-strengthening textile fabric.

[0062] Referring to Figure 2, there is illustrated a flow chart of a method (200) for producing a scalp strengthening textile fabric, in accordance with an embodiment of the present invention. The method commences at step (202), where a water-miscible solution is prepared, containing at least one scalp-strengthening active ingredient and a hydrolysable silane compound. Subsequently, the solution from step 202 is introduced, at step (204), into a solution comprising sodium silicate and a tensoactive substance, resulting in the formation of a first mixture. Progressing to step (206), the method involves the creation of a sol-gel through a process of stirring and pH adjustment applied to the first mixture. It is noteworthy that the sol-gel is intentionally embedded in an emulsion characterized by a solvent phase and an aqueous phase. The solvent phase, utilizing an organic solvent, is distinct from the aqueous phase, which contains the aforementioned scalp-strengthening active ingredient. Continuing with step (208), pH adjustment is implemented to attain a neutral level, concurrently with the evaporation of the solvent phase. This process yields a formulation of nanoparticles loaded with active ingredients, presenting itself in an aqueous dispersion form. Proceeding to step (210), a textile treatment bath is prepared using the formulated dispersion, with the incorporation of at least one of a dispersant and a thickening agent. Finally, at step (212), the textile treatment bath prepared in step 210 is applied to the textile fabric, thus completing the method (200). Said multi-step methodology ensures the effective integration of scalpstrengthening properties into the textile fabric through a well-defined and controlled production process.

[0063] In describing further on Figure 2, reference is made to Figure 3, wherein there is illustrated a method (300) for preparing a water miscible solution of at least one scalp strengthening active ingredient and a hydrolysable silane compound (202). Said method (300) initiates at step (302) that comprises adding the at least one scalp strengthening active ingredient to the hydrolysable silane to create a second mixture, and thereby stirring the second mixture (302). Following this, the method progresses to step (304), where the stirred second mixture is subjected to a resting period lasting between 1.5 to 2.5 hours. This interval transpires at a controlled temperature ranging from 10°C to 60°C, culminating in the attainment of the water-miscible solution. This strategic sequence of steps ensures the optimal preparation of a solution that incorporates the scalpstrengthening active ingredient with the hydrolysable silane, catering to the formulation's specific requirements.

[0064] In describing further on Figure 2, reference is made to Figure 4, wherein there is illustrated a method (400) for forming the sol-gel via stirring and pH adjustment (206). The method commences at step (402) that comprises stirring the first mixture for at least 50 to 70 minutes, followed by adding ammonium chloride to the stirred first mixture for changing pH level of the first mixture, to obtain a third mixture at step (404). The method further includes adding acetic acid to the third mixture until the pH decreases to four, forming the sol-gel at step (406).

[0065] In an embodiment, forming the sol-gel by stirring and adjusting the pH level further comprises forming at least one hydrogen covalent bond between at least one hydroxyl, OH group of the active ingredient and silica matrix of the sol-gel. In describing further on Figure 2, reference is made to Figure 5, wherein there is illustrated a flow chart of a method (500) for applying the textile treatment bath prepared in step 210 to the textile fabric (212). The method (500) encompasses the application of the textile treatment bath to textile fabric by padding, followed by the passage through squeezing rollers at step (502). Subsequently, at step (504), the method (500) involves subjecting the textile fabric to a hydrolysable silane solution at temperatures ranging from 100 to 150 degrees Celsius. This thermal treatment facilitates the encapsulation of active ingredient-loaded nanoparticles, enveloping them in a silane film through a condensation polymerization reaction.

[0066] Continuing with the method, at step (506), the method (500) accelerates the condensation polymerization reaction by introducing water during the post-treating step (504), achieved through the utilization of specialized machinery.

[0067] In an alternative embodiment, the present invention discloses that the treatment of textile fabric with the hydrolysable silane solution (504) encompasses the linking of scalpstrengthening active ingredient-loaded nanoparticles from the textile treatment bath to the textile fabric, achieved via the glycidyl group in epoxy form.

[0068] Additionally, in a further embodiment, the method includes the addition of the at least one active ingredient into the hydrolysable silane (302), with the selection of the at least one active ingredient from compounds such as, but not limited to, passion fruit extract containing the piceatannol compound, and fermentation gum derived from sorbitol. The fermentation gum boasts a branched saccharide sequence rich in rhamnose, galactose, and glucuronic acid, offering diverse formulation possibilities.

[0069] Throughout this specification, unless the context requires otherwise, the word “comprise”, or variations such as “comprises” or “comprising”, will be understood to imply the inclusion of a stated step or element or integer or group of steps or elements or integers, but not the exclusion of any other step or element or integer or group of steps, elements or integers. Thus, in the context of this specification, the term “comprising” is used in an inclusive sense and thus should be understood as meaning “including principally, but not necessarily solely”.

Claims

CLAIMS1 . A formulation of a compound of Formula I having scalp strengthening active ingredient embedded onto a textile fabric using hydrolysable saline compound:wherein‘R1’ is a cellulose based textile fabric, preferably with a linear chain structure of (CeHio05)n;‘R2’ is the scalp strengthening active ingredient comprising a plurality of polyphenols, preferably (CuH^O^n picetannols;‘n’ is indicative of repetitive structure units pertaining to R1 and R2; andR3 and R4 consist of either hydroxyl groups or the active ingredient R2 linked to the hydrolysable silane compound through their respective terminal hydroxyl groups.

2. The composition according to Claim 1 , wherein the scalp strengthening active ingredient comprises at least one hydroxyl group at terminal ends thereof, for connecting the active ingredient with the hydrolysable saline.

3. The composition according to Claim 1 , wherein the cellulose based textile fabric comprises at least one hydroxyl groups at terminal ends thereof, for connecting the cellulose based textile fibre with the hydrolysable saline.

4. The composition according to Claim 1 , wherein the plurality of polyphenols present in the active ingredient is 0.6-1 g / kg.

5. The composition according to Claim 1 , wherein the scalp strengthening active ingredient further comprises a fermentation gum derived from sorbitol, the fermentation gum is a branched saccharide sequence rich in rhamnose, galactose and glucuronic acid.

6. A scalp-strengthening textile fabric (100), comprising: a composition of nanoparticles (102) of silica formed through a sol-gel process;at least one scalp strengthening active ingredient (104) adsorbed on the nanoparticles using hydrolysable silane as a binder (108); and a textile fabric (110) comprising a cellulose polymer (106), wherein the cellulose polymer and the formulation of active ingredient loaded silica nanoparticles are linked via glycidyl group in epoxy form.

7. The scalp strengthening textile fabric according to Claim 6, wherein the at least one active ingredient (104) is selected from at least one of: passion fruit extract containing piceatannol compound; and fermentation gum derived from sorbitol, with the fermentation gum containing a branched saccharide sequence rich in rhamnose, galactose and glucuronic acid.

8. The scalp strengthening textile fabric according to Claim 6, wherein the at least one active ingredient (104) comprises hydroxyl groups for linking the at least one active ingredient (104) with the nanoparticles via covalent bonds.

9. A method (200) for producing a scalp strengthening textile fabric , the method (200) comprising steps of: preparing a water miscible solution of at least one scalp strengthening active ingredient and a hydrolysable silane compound (202); adding the solution prepared in step 202 to a solution of sodium silicate and a tensoactive substance, to obtain a first mixture (204); forming a sol-gel by stirring and adjusting a pH level of the first mixture, wherein the sol-gel is formed to be embedded in an emulsion comprising a solvent phase and an aqueous phase, wherein the solvent phase comprises an organic solvent while the aqueous phase comprises the at least one scalp strengthening active ingredient (206); adjusting the pH level to a neutral level and evaporating the solvent phase for forming a formulation of active ingredients loaded nanoparticles, wherein the formulation of the active ingredients loaded nanoparticles is formed in an aqueous dispersion form (208); preparing a textile treatment bath using the formed formulation by applying at least one of dispersant and a thickening agent to the formed formulation (210); and applying the textile treatment bath prepared in step 210 to the textile fabric (212).

10. The method (200) according to Claim 9, wherein preparing a water miscible solution of at least one scalp strengthening active ingredient and a hydrolysable silane compound (202) further comprises steps of (300):adding the at least one scalp strengthening active ingredient to the hydrolysable silane to create a second mixture, and thereby stirring the second mixture (302); and allowing the stirred second mixture to sit for 1.5-2.5 hours at a temperature between 10°C and 60°C, to obtain the water miscible solution (304).

11. The method (200) according to Claim 9, wherein forming the sol-gel via stirring and pH adjustment (206) further comprises steps of (400): stirring the first mixture for at least 50 to 70 minutes (402); adding ammonium chloride to the stirred first mixture for changing pH level of the first mixture, to obtain a third mixture (404); and adding acetic acid to the third mixture until the pH decreases to four, forming the sol-gel (406).

12. The method (200) according to Claim 9, wherein forming the sol-gel by stirring and adjusting the pH level further comprises forming at least one hydrogen covalent bond between at least one hydroxyl, OH group of the active ingredient and silica matrix of the sol-gel.

13. The method (200) according to Claim 9, wherein applying the textile treatment bath prepared in step 210 to the textile fabric (212) further comprises steps of (500): padding textile fabric with the textile treatment bath and passing through squeezing rollers (502); treating the textile fabric with hydrolysable silane solution at 100 to 150 degree Celsius, enabling the active ingredients loaded nanoparticles to be surrounded by a film of silane through a condensation polymerization reaction (504) ; and accelerating the condensation polymerization reaction by releasing water during the post-treating step (504) in a customised machinery (506).

14. The method (200) according to Claim 13, wherein treating the textile fabric with hydrolysable silane solution (504) further comprises linking the scalp strengthening active ingredients loaded nanoparticles of the textile treatment bath, with the textile fabric via glycidyl group in epoxy form.

15. The method (200) according to Claim 10, wherein adding the at least one active ingredient to the hydrolysable silane (302) further comprises selecting the at least one active ingredient from at least one of: passion fruit extract containing piceatannol compound; and fermentation gum derived from sorbitol, with the fermentation gum containing a branched saccharide sequence rich in rhamnose, galactose and glucuronic acid.

Citation Information

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  • Waterproof mail-carriage

    US509A

  • Island

    US586A

  • Nanoscopic hair care products

    US6821509B2