Lubricating strip for shaver, preparation method of lubricating strip and shaver

Abstract

The invention discloses a lubricating strip for a shaver, a preparation method of the lubricating strip and the shaver, and belongs to the technical field of lubricating strips. The antibacterial composition in the lubricating strip for the shaver is prepared from the following components in parts by weight: 1 to 8 parts of starch calcium octenylsuccinate, 4 to 8 parts of fatty acid, 3 to 6 parts of fatty acid ester, 0.001 to 1 part of sodium salt, 2 to 10 parts of organic antibacterial agent and 2 to 4 parts of aloe extract, the sodium salt is at least one of sodium hyaluronate and sodium polyglutamate. Through the interaction of all the components in the antibacterial composition, the lubricating strip for the shaver has the effects of instant bacteriostasis and long-acting bacteriostasis.

Description

Technical Field

[0001] The present application relates to the technical field of lubricating strips, and in particular to a lubricating strip for a razor, a preparation method thereof, and a razor. Background Art

[0002] Conventional razors use a lubricating strip on the blade holder to lubricate the skin during shaving, ensuring a smooth and painless shaving experience. However, existing razor lubricating strips have the following problems: the antimicrobial agent in the strip is rapidly released primarily through a water-soluble matrix, resulting in an excessively high concentration of antimicrobial agent during initial use, causing skin irritation. Due to the rapid release of the antimicrobial agent, the antimicrobial agent loses its effectiveness over time, leading to bacterial growth on the strip. This, in turn, can stick to the user's skin during shaving, causing infection. Furthermore, the main matrix of the razor is polylactic acid or elastomer. During use, the lubricating strip expands and deforms when exposed to water, making it susceptible to damage. Summary of the Invention

[0003] The purpose of the present disclosure is to overcome the deficiencies of the prior art and to provide a lubricating strip for a razor, a preparation method thereof, and a razor.

[0004] To achieve the above objectives, the technical solution adopted by the present disclosure is as follows: In a first aspect, a lubricating strip for a razor is provided, comprising an antibacterial composition, wherein the antibacterial composition comprises the following components in parts by weight: 1-8 parts of calcium starch octenylsuccinate, 4-8 parts of fatty acids, 3-6 parts of fatty acid esters, 0.001-1 parts of sodium salts, 2-10 parts of organic antibacterial agents, and 2-4 parts of aloe vera extracts; the sodium salts are at least one of sodium hyaluronate and sodium polyglutamate.

[0005] In some embodiments, the fatty acid includes at least one of oleic acid, stearic acid, lauric acid, myristic acid, and behenic acid.

[0006] In some embodiments, the fatty acid ester is at least one of ethylhexyl isopalmitate, isopropyl palmitate, isopropyl myristate, caprylic / capric triglyceride, and isononyl isononanoate.

[0007] In some embodiments, the organic antibacterial agent is at least one of an ureide antibacterial agent, an imidazole antibacterial agent, an isothiazolone antibacterial agent, a quaternary ammonium salt antibacterial agent, a biguanide antibacterial agent, and a phenolic antibacterial agent.

[0008] In some embodiments, the quaternary ammonium antibacterial agent is at least one of benzethonium chloride and benzalkonium chloride.

[0009] In some embodiments, the method for preparing the antibacterial composition comprises the following steps:

[0010] S1: heating and stirring the fatty acid, fatty acid ester and sodium salt to obtain a first gel;

[0011] S2: mixing part of the organic antimicrobial agent with the first gel obtained in step S1 to obtain a second gel;

[0012] S3: After the second gel and calcium starch octenylsuccinate are evenly mixed, the aloe vera extract and the remaining organic antibacterial agent are added and mixed evenly to obtain an antibacterial composition.

[0013] In some embodiments, the lubricating strip for a razor further comprises 35-50 parts by weight of a hydrogenated styrene-butadiene block copolymer, 30-40 parts by weight of an oxidized polyethylene, and 3-6 parts of an antioxidant.

[0014] In a second aspect, a method for preparing a lubricating strip for a razor is provided, comprising the following steps:

[0015] The antibacterial composition, the antioxidant, the hydrogenated styrene-butadiene block copolymer and the oxidized polyethylene are uniformly mixed to obtain a mixture;

[0016] The mixed material is hot-pressed to obtain a lubricating strip for a razor.

[0017] In some embodiments, the temperature of the hot pressing molding is 100-130° C., the pressure is 25-30 MPa, and the time is 35-45 min.

[0018] In a third aspect, a razor is provided, comprising a handle, a blade holder and a blade mounted on the blade holder, wherein the blade holder is provided with the lubricating strip for the razor or the lubricating strip for the razor prepared by the method for preparing the lubricating strip for the razor.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The antibacterial composition of the present application, the fatty acid, the fatty acid ester and the sodium salt form a first gel; the first gel as a sustained-release matrix, wraps part of the organic antibacterial agent, forming a second gel; the calcium octenyl succinate starch as a porous substrate, through the mutual adsorption of the second gel and the calcium octenyl succinate starch, the second gel enters the pore channel of the calcium octenyl succinate starch, and is adsorbed on part of the surface of the porous substrate; the remaining organic antibacterial agent and aloe extract are adsorbed in part of the pore channel of the calcium octenyl succinate starch, and are adsorbed on the surface of the porous substrate. When the lubricating strip is used for the first time, the organic antibacterial agent and aloe extract adsorbed on the surface of the porous substrate are released quickly, achieving the effect of instant antibacterial; during the continuous use of the lubricating strip, the second gel in the antibacterial composition absorbs water to swell, so that the organic antibacterial agent is gradually released with friction; in addition, the oil phase material in the second gel delays the loss of the organic antibacterial agent, the sodium salt absorbs water to maintain a humid environment, prolongs the half-life of the organic antibacterial agent, and achieves the effect of long-acting antibacterial; the aloe extract is compounded with the organic antibacterial agent to improve the antibacterial effect of the antibacterial composition, and can also promote the regeneration and healing of damaged tissues. DETAILED DESCRIPTION

[0021] For the purposes of this disclosure, a more complete understanding can be obtained by reference to the following description. The disclosure may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the disclosure to the skilled artisan.

[0022] As used herein the terms "a," "an," and "the" include singular and plural referents. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0023] "Made from" is synonymous with "comprising." The terms "comprising," "including," "having," "containing," or any other similar forms are intended to cover non-exclusive inclusions. For example, a composition, step, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such composition, step, method, article, or apparatus.

[0024] The conjunction "consisting of" excludes any unrecited elements, steps, or components. If used in a claim, this phrase will close the claim to the addition of any element not specified. When the phrase "consisting of" appears in a clause of the body of a claim, rather than immediately following a comma following the preamble, it limits the clause in which it appears to the elements specified in that clause. Other elements not specified in that clause are excluded from that claim as a whole.

[0025] When amount, concentration or other value or parameter are represented with range, preferred range or the range that a series of upper preferred value and lower preferred value limit are expressed, this should be understood as specifically disclosing all ranges formed by any pairing of any range upper limit or preferred value and any range lower limit or preferred value, and no matter whether this scope is disclosed separately.For example, when disclosing scope " 1-5 ", described scope should be interpreted as including scope " 1-4 ", " 1-3 ", " 1-2 ", " 1-2 and 4-5 ", " 1-3 and 5 " etc.When numerical range is described in this article, unless otherwise stated, otherwise this scope is intended to include its end value and all integers and fractions within this range.

[0026] In these examples, parts and percentages are by mass unless otherwise indicated.

[0027] "Parts by mass" refers to the basic unit of measurement used to express the mass ratio of multiple components. One part can represent any unit of mass, such as 1g or 2.689g. If we say that the mass of component A is a parts and the mass of component B is b parts, this means the ratio of the mass of component A to the mass of component B is a:b. Alternatively, we could say that the mass of component A is aK and the mass of component B is bK (K is an arbitrary number representing a multiplication factor). It's important to note that, unlike parts by mass, the sum of the mass of all components is not limited to 100 parts.

[0028] "And / or" is used to indicate that one or both of the stated situations may occur, for example, A and / or B includes (A and B) and (A or B).

[0029] In a first aspect, a lubricating strip for a razor is provided, comprising an antibacterial composition, wherein the antibacterial composition comprises the following components in parts by weight: 1-8 parts of calcium starch octenylsuccinate, 4-8 parts of fatty acids, 3-6 parts of fatty acid esters, 0.001-1 parts of sodium salts, 2-10 parts of organic antibacterial agents, and 2-4 parts of aloe vera extracts; the sodium salts are at least one of sodium hyaluronate and sodium polyglutamate.

[0030] The antibacterial composition of the present application comprises a first gel formed of fatty acids, fatty acid esters and sodium salts; the first gel serves as a sustained-release matrix, encapsulating a portion of the organic antibacterial agent to form a second gel; calcium starch octenylsuccinate serves as a porous substrate, and through the mutual adsorption between the second gel and calcium starch octenylsuccinate, the second gel enters the pores of the calcium starch octenylsuccinate and is adsorbed on a portion of the surface of the porous substrate; the remaining organic antibacterial agent and aloe vera extract are adsorbed in a portion of the pores of the calcium starch octenylsuccinate and on the surface of the porous substrate. When the lubricating strip is used for the first time, the organic antimicrobial agent and aloe vera extract adsorbed on the surface of the porous substrate are quickly released, achieving an immediate antibacterial effect; during continued use of the lubricating strip, the second gel in the antimicrobial composition absorbs water and expands, causing the organic antimicrobial agent to be gradually released with friction; in addition, the oil phase substance in the second gel delays the loss of the organic antimicrobial agent, and the sodium salt absorbs water to maintain a moist environment, extending the half-life of the organic antimicrobial agent and achieving a long-lasting antibacterial effect; the aloe vera extract is combined with the organic antimicrobial agent to enhance the antibacterial effect of the antimicrobial composition, while also promoting the regeneration and healing of damaged tissue.

[0031] For example, in different embodiments, the weight portion of calcium starch octenylsuccinate can be 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts or a range consisting of any two of the above values.

[0032] For example, in different embodiments, the weight parts of fatty acids can be 4 parts, 4.3 parts, 4.5 parts, 4.8 parts, 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.2 parts, 7.5 parts, 7.7 parts, 8 parts or a range consisting of any two of the above values.

[0033] For example, in different embodiments, the weight parts of the fatty acid ester can be 3 parts, 3.2 parts, 3.5 parts, 3.8 parts, 4 parts, 4.5 parts, 5 parts, 5.3 parts, 5.5 parts, 5.8 parts, 6 parts, or a range consisting of any two of the above values.

[0034] For example, in different embodiments, the weight portion of sodium salt can be 0.001 part, 0.005 part, 0.008 part, 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.85 part, 0.9 part, 0.95 part, 1 part or a range consisting of any two of the above values.

[0035] For example, in different embodiments, the weight portion of the organic antimicrobial agent can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, or a range consisting of any two of the above values.

[0036] For example, in different embodiments, the weight portion of the aloe vera extract can be 2 parts, 2.2 parts, 2.5 parts, 2.7 parts, 3 parts, 3.3 parts, 3.5 parts, 3.8 parts, 4 parts, or a range consisting of any two of the above values.

[0037] The weight proportions of calcium starch octenylsuccinate, fatty acid, fatty acid ester, sodium salt, organic antibacterial agent and aloe extract within the above ranges are beneficial to improving the immediate and long-term antibacterial effects of the antibacterial composition.

[0038] In some embodiments, the fatty acid includes at least one of oleic acid, stearic acid, lauric acid, myristic acid, and behenic acid.

[0039] In some embodiments, the fatty acid ester is at least one of ethylhexyl isopalmitate, isopropyl palmitate, isopropyl myristate, caprylic / capric triglyceride, and isononyl isononanoate.

[0040] In some embodiments, the organic antibacterial agent is at least one of urea antibacterial agents, imidazole antibacterial agents, thiazole antibacterial agents, isothiazolone antibacterial agents, quaternary ammonium salt antibacterial agents, biguanide antibacterial agents, and phenolic antibacterial agents.

[0041] Specifically, the urea antibacterial agent includes at least one of DM hydantoin, DMDM ​​hydantoin, and MDM hydantoin.

[0042] Specifically, the imidazole antibacterial agent includes at least one of glutamidoethylimidazole, imidazolidinyl urea, prolinamideethylimidazole, ketoconazole, clotrimazole, and methimazole.

[0043] Specifically, the isothiazolone antibacterial agent includes at least one of methylchloroisothiazolinone and methylisothiazolinone.

[0044] Specifically, the biguanide antibacterial agent includes at least one of o-tolyl biguanide and polyaminopropyl biguanide.

[0045] Specifically, the phenolic antibacterial agent includes at least one of p-aminophenol, p-methylaminophenol, and p-chlorophenol.

[0046] In some embodiments, the quaternary ammonium antibacterial agent is at least one of benzethonium chloride and benzalkonium chloride.

[0047] In the present application, the organic antibacterial agent is a quaternary ammonium salt antibacterial agent, which destroys the cell membrane of microorganisms through quaternary ammonium salt cations to achieve an antibacterial effect.

[0048] In some embodiments, the method for preparing the antibacterial composition comprises the following steps:

[0049] S1: heating and stirring the fatty acid, fatty acid ester and sodium salt to obtain a first gel;

[0050] S2: mixing part of the organic antimicrobial agent with the first gel obtained in step S1 to obtain a second gel;

[0051] S3: After the second gel and calcium starch octenylsuccinate are evenly mixed, the aloe vera extract and the remaining organic antibacterial agent are added and mixed evenly to obtain an antibacterial composition.

[0052] The preparation method of the antibacterial composition of the present application, in step S1 and step S2, fatty acids, fatty acid esters and sodium salts form a first gel, fatty acids and fatty acid esters as oil phase, are wrapped in the network of the first gel, and play the role of a support; the first gel and part of the organic antibacterial agent are mixed to form a second gel, the first gel as a sustained-release matrix, wrapping part of the organic antibacterial agent. In step S3, calcium starch octenyl succinate is used as a porous substrate, the porous substrate and the second gel are mixed, and through the mutual adsorption of the second gel and calcium starch octenyl succinate, the second gel enters the pores of calcium starch octenyl succinate and fills the pores of the porous substrate, while part of the second gel is adsorbed on the surface of part of the porous substrate; if the second gel cannot completely fill the pores of the porous substrate, in the process of mixing with the remaining organic antibacterial agent and aloe extract, the remaining organic antibacterial agent and aloe extract will first enter the pores of the porous substrate and completely fill the pores of the porous substrate. Secondly, the remaining organic antibacterial agent and aloe extract are then adsorbed on the surface of the porous substrate. When the lubricating strip is used for the first time, the organic antimicrobial agent and aloe vera extract adsorbed on the surface of the porous substrate are quickly released, achieving an immediate antibacterial effect; during continued use of the lubricating strip, the second gel in the antimicrobial composition absorbs water and expands, causing the organic antimicrobial agent to be gradually released with friction; in addition, the oil phase substance in the second gel delays the loss of the organic antimicrobial agent, and the sodium salt absorbs water to maintain a moist environment, extending the half-life of the organic antimicrobial agent and achieving long-term antibacterial effect; the aloe vera extract is combined with the organic antimicrobial agent to enhance the antibacterial effect of the antimicrobial composition, while also promoting the regeneration and healing of damaged tissue.

[0053] Specifically, in step S1, the heating and stirring temperature is 60-80°C, for example, it can be 60°C, 62°C, 65°C, 67°C, 70°C, 73°C, 75°C, 78°C, 80°C or a range consisting of any two of the above values.

[0054] Specifically, in step S1, the time for heating and stirring is not particularly limited, as long as the fatty acid, fatty acid ester and sodium hyaluronate can form a gel.

[0055] Specifically, in step S2, the rotation speed of mixing the part of the organic antimicrobial agent and the first gel obtained in step S1 is 300-400 rpm and the time is 8-12 minutes.

[0056] By stirring at this rotation speed, the organic antimicrobial agent can be evenly dispersed in the first gel, and the first gel can wrap the organic antimicrobial agent.

[0057] Specifically, in step S3, the second gel and calcium starch octenylsuccinate are mixed at a rotation speed of 300-400 rpm for 8-12 minutes.

[0058] Through the shear force of high-speed stirring and the mutual adsorption between the second gel and calcium starch octenylsuccinate, the second gel enters the internal pores of the porous substrate, filling them. During long-term use of the lubricating strip, the second gel in the antimicrobial composition absorbs water and expands, gradually releasing the organic antimicrobial agent with friction. Furthermore, the oil phase in the second gel slows the loss of the organic antimicrobial agent, while the sodium salt absorbs water to maintain a moist environment, extending the half-life of the organic antimicrobial agent and achieving a long-lasting antibacterial effect.

[0059] Specifically, in step S3, the aloe vera extract and the remaining organic antimicrobial agent are added and mixed at a rotation speed of 300-400 rpm for 8-12 minutes.

[0060] By stirring, the aloe vera extract and the remaining organic antimicrobial agent are adsorbed on the surface of the porous substrate, so that during the first use of the lubricating strip, the organic antimicrobial agent on the surface of the porous substrate is quickly released, achieving an immediate antibacterial effect.

[0061] In some embodiments, the lubricating strip for a razor further comprises 35-50 parts by weight of a hydrogenated styrene-butadiene block copolymer, 30-40 parts by weight of an oxidized polyethylene, and 3-6 parts by weight of an antioxidant.

[0062] For example, in different embodiments, the weight portion of the hydrogenated styrene-butadiene block copolymer can be 35 parts, 37 parts, 39 parts, 41 parts, 42 parts, 44 parts, 46 parts, 48 ​​parts, 50 parts, or a range consisting of any two of the above values.

[0063] For example, in different embodiments, the weight proportion of the oxidized polyethylene can be 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts, 6 parts, or a range consisting of any two of the above values.

[0064] For example, in different embodiments, the weight portion of the antioxidant can be 30 parts, 31 parts, 32 parts, 33 parts, 34 parts, 35 parts, 36 parts, 37 parts, 38 parts, 39 parts, 40 parts, or a range consisting of any two of the above values.

[0065] The lubricating strips in this application utilize a polymer material composed of hydrogenated styrene-butadiene block copolymer and oxidized polyethylene, which exhibits high compatibility with the antimicrobial composition and improves the dispersibility of the antimicrobial composition within the polymer material, thereby enhancing the lubricating strip's antibacterial properties. The antioxidant also enhances the lubricating strip's antioxidant properties and prolongs its service life.

[0066] In some embodiments, the antioxidant is tocopherol.

[0067] In some embodiments, the lubricating strip for a razor further comprises additional ingredients that are added to impart special properties, such as colorants, fragrances, chelating agents, opacifying agents, exfoliating particles, and the like.

[0068] When the lubricating strip for shavers of the present invention includes a colorant, the mass percentage of the colorant is 0.0001% to 0.001% based on 100% of the mass of the lubricating strip.

[0069] When the lubricating strip for razors of the present invention includes fragrance, the mass percentage of the fragrance does not exceed 0.5% based on the mass of the lubricating strip being 100%.

[0070] When the lubricating strip for razors of the present invention includes a chelating agent, the mass percentage of the chelating agent is 0.05%-0.2% based on the mass of the lubricating strip as 100%. In the lubricating strip of the present invention, various chelating agents known in the cosmetic field can be used.

[0071] When the lubricating strip for razors of the present invention includes an opacifying agent, the mass percentage of the opacifying agent is 0.2%-2% based on the mass of the lubricating strip as 100%. In the lubricating strip of the present invention, different opacifying agents known in the cosmetic field can be used.

[0072] In a second aspect, a method for preparing a lubricating strip for a razor is provided, comprising the following steps:

[0073] uniformly mixing the antibacterial composition, hydrogenated styrene-butadiene block copolymer and oxidized polyethylene to obtain a mixture;

[0074] The mixed material is hot-pressed to obtain a lubricating strip for a razor.

[0075] In some embodiments, the temperature of the hot pressing molding is 100-130° C., the pressure is 25-30 MPa, and the time is 35-45 min.

[0076] For example, in different embodiments, the temperature of the hot pressing molding may be 100° C., 105° C., 110° C., 115° C., 120° C., 125° C., 130° C., or a range consisting of any two of the above values.

[0077] For example, in different embodiments, the pressure of hot pressing can be 25 MPa, 25.5 MPa, 26 MPa, 26.5 MPa, 27 MPa, 27.5 MPa, 28 MPa, 28.5 MPa, 29 MPa, 29.5 MPa, 30 MPa, or a range consisting of any two of the above values.

[0078] For example, in different embodiments, the time for hot pressing can be 35 min, 37 min, 39 min, 41 min, 43 min, 45 min, or a range consisting of any two of the above values.

[0079] Specifically, the hot pressing molding includes a first hot pressing molding process, a second hot pressing molding process, a third hot pressing molding process and a fourth hot pressing molding process performed in sequence. The temperature of the first hot pressing molding is 128-130°C, the temperature of the second hot pressing molding is 123-126°C, the temperature of the third hot pressing molding is 117-121°C, and the temperature of the fourth hot pressing molding is 100-105°C.

[0080] Through multi-stage gradient cooling hot pressing molding treatment, the thermal expansion and contraction effect of the pores of calcium starch octenyl succinate is reduced, so that the internal and external pore structures of calcium starch octenyl succinate remain basically unchanged, avoiding the overflow of organic antimicrobial agents from the pores of calcium starch octenyl succinate, thereby improving the antibacterial effect of the lubricating strip.

[0081] Specifically, the cooling rates of the second hot pressing molding, the third hot pressing molding, and the fourth hot pressing molding are each independently 3-5° C. / min.

[0082] In a third aspect, a razor is provided, comprising a handle, a blade holder and a blade mounted on the blade holder, wherein the blade holder is provided with the lubricating strip for the razor or the lubricating strip for the razor prepared by the method for preparing the lubricating strip for the razor.

[0083] In the following examples and comparative examples, unless otherwise specified, all parts are parts by weight.

[0084] Example 1

[0085] This embodiment provides a lubricating strip for a razor, comprising the following components in parts by weight: 40 parts of hydrogenated styrene-butadiene block copolymer, 35 parts of oxidized polyethylene, 2 parts of benzethonium chloride, 4 parts of benzalkonium chloride, 3 parts of aloe extract, 4.5 parts of oleic acid, 1.5 parts of stearic acid, 5 parts of ethylhexyl isopalmitate, 0.5 part of sodium hyaluronate, 5 parts of calcium starch octenylsuccinate, and 4 parts of tocopherol.

[0086] This embodiment also provides a method for preparing a lubricating strip for a razor, comprising the following steps:

[0087] S1: 4.5 parts of oleic acid, 1.5 parts of stearic acid, 5 parts of ethylhexyl isopalmitate, and 0.5 parts of sodium hyaluronate were stirred at 70°C and 350 rpm for 10 minutes to obtain a first gel;

[0088] S2: 2 parts of benzethonium chloride and the first gel obtained in step S1 were stirred at 350 rpm for 10 minutes to obtain a second gel;

[0089] S3: The second gel obtained in step S2 and 5 parts of calcium starch octenylsuccinate were stirred at 350 rpm for 10 minutes, and then 3 parts of aloe extract and 4 parts of benzalkonium chloride were added and stirred at 350 rpm for 10 minutes to obtain an antibacterial composition;

[0090] S4: After uniformly mixing the antibacterial composition obtained in step S3, 4 parts of tocopherol, 40 parts of hydrogenated styrene-butadiene block copolymer and 35 parts of polyethylene oxide, the mixture is added into a mold and sequentially subjected to a first hot pressing molding treatment, a second hot pressing molding treatment, a third hot pressing molding treatment and a fourth hot pressing molding treatment, wherein the temperature of the first hot pressing molding treatment is 130°C, the temperature of the second hot pressing molding treatment is 125°C, the temperature of the third hot pressing molding treatment is 120°C, and the temperature of the fourth hot pressing molding treatment is 100°C; the pressure of the first hot pressing molding treatment, the second hot pressing molding treatment, the third hot pressing molding treatment and the fourth hot pressing molding treatment is 28 MPa, and the time is 10 min; the cooling rate of the second hot pressing molding treatment, the third hot pressing molding treatment and the fourth hot pressing molding treatment is 5°C / min, to obtain a lubricating strip for a razor.

[0091] Example 2

[0092] This embodiment provides a lubricating strip for a razor, comprising the following components in parts by weight: 35 parts of hydrogenated styrene-butadiene block copolymer, 40 parts of oxidized polyethylene, 0.1 parts of benzethonium chloride, 8 parts of benzalkonium chloride, 2 parts of aloe extract, 3 parts of oleic acid, 2 parts of stearic acid, 6 parts of isopropyl myristate, 1 part of sodium polyglutamate, 8 parts of calcium starch octenylsuccinate, and 3 parts of tocopherol.

[0093] This embodiment also provides a method for preparing a lubricating strip for a razor, comprising the following steps:

[0094] S1: 3 parts of oleic acid, 2 parts of stearic acid, 6 parts of isopropyl myristate, and 1 part of sodium polyglutamate were stirred at 60°C and 350 rpm for 10 minutes to obtain a first gel;

[0095] S2: 0.1 parts of benzethonium chloride, 3 parts of benzalkonium chloride, and the first gel obtained in step S1 were stirred at 350 rpm for 10 minutes to obtain a second gel;

[0096] S3: The second gel obtained in step S2 and 8 parts of calcium starch octenylsuccinate were stirred at 350 rpm for 10 minutes, and then 2 parts of aloe extract and 5 parts of benzalkonium chloride were added, and the mixture was stirred at 350 rpm for 10 minutes to obtain an antibacterial composition;

[0097] S4: After uniformly mixing the antibacterial composition obtained in step S3, 3 parts of tocopherol, 35 parts of hydrogenated styrene-butadiene block copolymer and 40 parts of polyethylene oxide, the mixture is added into a mold and sequentially subjected to a first hot pressing molding treatment, a second hot pressing molding treatment, a third hot pressing molding treatment and a fourth hot pressing molding treatment, wherein the temperature of the first hot pressing molding treatment is 128°C, the temperature of the second hot pressing molding treatment is 123°C, the temperature of the third hot pressing molding treatment is 117°C, and the temperature of the fourth hot pressing molding treatment is 105°C; the pressure of the first hot pressing molding treatment, the second hot pressing molding treatment, the third hot pressing molding treatment and the fourth hot pressing molding treatment is 30 MPa, and the time is 10 min; the cooling rate of the second hot pressing molding treatment, the third hot pressing molding treatment and the fourth hot pressing molding treatment is 3°C / min, to obtain a lubricating strip for a razor.

[0098] Example 3

[0099] This embodiment provides a lubricating strip for a razor, comprising the following components in parts by weight: 50 parts of hydrogenated styrene-butadiene block copolymer, 30 parts of oxidized polyethylene, 5 parts of benzethonium chloride, 0.01 parts of benzalkonium chloride, 4 parts of aloe extract, 6 parts of lauric acid, 1 part of behenic acid, 3 parts of caprylic / capric triglyceride, 0.1 parts of sodium hyaluronate, 1 part of calcium starch octenylsuccinate, and 6 parts of tocopherol.

[0100] This embodiment also provides a method for preparing a lubricating strip for a razor, comprising the following steps:

[0101] S1: 6 parts of lauric acid, 1 part of behenic acid, 3 parts of caprylic / capric triglyceride, and 0.1 part of sodium hyaluronate were stirred at 60°C and 350 rpm for 10 minutes to obtain a first gel;

[0102] S2: 2 parts of benzethonium chloride and the first gel obtained in step S1 were stirred at 350 rpm for 10 minutes to obtain a second gel;

[0103] S3: The second gel obtained in step S2 and 1 part of calcium starch octenylsuccinate were stirred at 350 rpm for 10 minutes, and then 4 parts of aloe extract, 3 parts of benzethonium chloride and 0.01 part of benzalkonium chloride were added, and the mixture was stirred at 350 rpm for 10 minutes to obtain an antibacterial composition;

[0104] S4: After uniformly mixing the antibacterial composition obtained in step S3, 6 parts of tocopherol, 50 parts of hydrogenated styrene-butadiene block copolymer and 30 parts of polyethylene oxide, the mixture is added into a mold and sequentially subjected to a first hot pressing molding treatment, a second hot pressing molding treatment, a third hot pressing molding treatment and a fourth hot pressing molding treatment, wherein the temperature of the first hot pressing molding treatment is 130°C, the temperature of the second hot pressing molding treatment is 125°C, the temperature of the third hot pressing molding treatment is 120°C, and the temperature of the fourth hot pressing molding treatment is 100°C; the pressure of the first hot pressing molding treatment, the second hot pressing molding treatment, the third hot pressing molding treatment and the fourth hot pressing molding treatment is 28 MPa, and the time is 10 min; the cooling rate of the second hot pressing molding treatment, the third hot pressing molding treatment and the fourth hot pressing molding treatment is 3°C / min, to obtain a lubricating strip for a razor.

[0105] Example 4

[0106] This embodiment provides a lubricating strip for a razor, comprising the following components in parts by weight: 40 parts of hydrogenated styrene-butadiene block copolymer, 35 parts of oxidized polyethylene, 6 parts of glutamidoethylimidazole, 3 parts of aloe extract, 4.5 parts of oleic acid, 1.5 parts of stearic acid, 5 parts of ethylhexyl isopalmitate, 0.5 part of sodium hyaluronate, 5 parts of calcium starch octenylsuccinate, and 4 parts of tocopherol.

[0107] The preparation method of the lubricating strip for razors in this embodiment is the same as that in Example 1.

[0108] Example 5

[0109] This embodiment provides a lubricating strip for a razor, comprising the following components in parts by weight: 40 parts of hydrogenated styrene-butadiene block copolymer, 35 parts of oxidized polyethylene, 6 parts of o-tolyl biguanide, 3 parts of aloe extract, 4.5 parts of oleic acid, 1.5 parts of stearic acid, 5 parts of ethylhexyl isopalmitate, 0.5 part of sodium hyaluronate, 5 parts of calcium starch octenylsuccinate, and 4 parts of tocopherol.

[0110] The preparation method of the lubricating strip for razors in this embodiment is the same as that in Example 1.

[0111] Example 6

[0112] This embodiment provides a lubricating strip for a razor, comprising the following components in parts by weight: 40 parts of hydrogenated styrene-butadiene block copolymer, 35 parts of oxidized polyethylene, 6 parts of p-aminophenol, 3 parts of aloe extract, 4.5 parts of oleic acid, 1.5 parts of stearic acid, 5 parts of ethylhexyl isopalmitate, 0.5 part of sodium hyaluronate, 5 parts of calcium starch octenylsuccinate, and 4 parts of tocopherol.

[0113] The preparation method of the lubricating strip for razors in this embodiment is the same as that in Example 1.

[0114] Example 7

[0115] This embodiment provides a lubricating strip for a razor, the components of which are the same as those in Example 1.

[0116] The method for preparing a lubricating strip for a razor in this embodiment differs from that in Example 1 in that step S4 is different. Step S4 in this embodiment comprises uniformly mixing the antibacterial composition obtained in step S3, 4 parts of tocopherol, 40 parts of hydrogenated styrene-butadiene block copolymer, and 35 parts of polyethylene oxide, and then adding the mixture to a mold for sequentially performing a first hot pressing process and a second hot pressing process. The temperature for the first hot pressing process is 130° C., and the temperature for the second hot pressing process is 100° C. The pressure for both the first and second hot pressing processes is 28 MPa, and the time for both processes is 20 minutes. The cooling rate for the second hot pressing process is 5° C. / min, thereby obtaining a lubricating strip for a razor.

[0117] Example 8

[0118] This embodiment provides a lubricating strip for a razor, the components of which are the same as those in Example 1.

[0119] The method for preparing a lubricating strip for a razor in this embodiment differs from that in Example 1 in that step S4 is different. Step S4 in this embodiment comprises uniformly mixing the antibacterial composition obtained in step S3, 4 parts of tocopherol, 40 parts of hydrogenated styrene-butadiene block copolymer, and 35 parts of polyethylene oxide, and then adding the mixture into a mold for hot pressing to obtain a lubricating strip for a razor. The hot pressing temperature is 115° C., the pressure is 28 MPa, and the time is 40 minutes.

[0120] Example 9

[0121] This embodiment provides a lubricating strip for a razor, the components of which are the same as those in Example 1.

[0122] The method for preparing a lubricating strip for a razor in this embodiment differs from that in Example 1 in that step S4 is different. Step S4 in this embodiment comprises: uniformly mixing the antibacterial composition obtained in step S3, 4 parts of tocopherol, 40 parts of hydrogenated styrene-butadiene block copolymer, and 35 parts of polyethylene oxide, adding the mixture to a mold and sequentially performing a first, second, third, and fourth hot pressing molding process. The temperature for the first, second, third, and fourth hot pressing molding processes is 140° C., 125° C., 110° C., and 100° C. The pressure for each of the first, second, third, and fourth hot pressing molding processes is 28 MPa, and the duration is 10 min. The cooling rate for each of the second, third, and fourth hot pressing molding processes is 5° C. / min, thereby obtaining a lubricating strip for a razor.

[0123] Example 10

[0124] This embodiment provides a lubricating strip for a razor, the components of which are the same as those in Example 1.

[0125] The method for preparing a lubricating strip for a razor in this embodiment differs from that in Example 1 in that step S3 is different. In this embodiment, step S3 comprises stirring the second gel obtained in step S2, 5 parts of calcium starch octenylsuccinate, 3 parts of aloe extract, and 4 parts of benzalkonium chloride at 350 rpm for 10 minutes to obtain an antibacterial composition.

[0126] Example 11

[0127] This embodiment provides a lubricating strip for a razor, the components of which are the same as those in Example 1.

[0128] The method for preparing the lubricating strip for a shaver in this embodiment differs from that in embodiment 1 in that step S2 and step S3 are different. Step S2 and step S3 in this embodiment are:

[0129] S2: 2 parts of benzethonium chloride, 3 parts of aloe extract, 4 parts of benzalkonium chloride, and the gel obtained in step S1 were stirred at 350 rpm for 10 minutes to obtain a second gel;

[0130] S3: The second gel obtained in step S2 and 5 parts of calcium starch octenylsuccinate were stirred at 350 rpm for 20 minutes to obtain an antibacterial composition.

[0131] Example 12

[0132] This embodiment provides a lubricating strip for a razor, the components of which are the same as those in Example 1.

[0133] The preparation method of the lubricating strip for a razor in this embodiment differs from that in Example 1 in that the preparation method of the antibacterial composition is different. The preparation method of the antibacterial composition in this embodiment is as follows: 2 parts of benzethonium chloride, 4 parts of benzalkonium chloride, 3 parts of aloe extract, 4.5 parts of oleic acid, 1.5 parts of stearic acid, 5 parts of ethylhexyl isopalmitate, 0.5 part of sodium hyaluronate, and 5 parts of calcium starch octenylsuccinate are stirred at 350 rpm for 30 minutes to obtain the antibacterial composition.

[0134] Comparative Example 1

[0135] This comparative example provides a lubricating strip for a razor, comprising the following components in parts by weight: 40 parts of hydrogenated styrene-butadiene block copolymer, 35 parts of oxidized polyethylene, 2 parts of benzethonium chloride, 4 parts of benzalkonium chloride, 3 parts of aloe extract, 5 parts of oleic acid, 1.5 parts of stearic acid, 5 parts of ethylhexyl isopalmitate, 5 parts of calcium starch octenylsuccinate, and 4 parts of tocopherol.

[0136] This comparative example also provides a method for preparing a lubricating strip for a razor, comprising the following steps:

[0137] S1: 5 parts of oleic acid, 1.5 parts of stearic acid, and 5 parts of ethylhexyl isopalmitate were stirred at 70° C. and 350 rpm for 10 min to obtain a first mixture;

[0138] S2: stirring 2 parts of benzethonium chloride and the gel obtained in step S1 at 350 rpm for 10 minutes to obtain a second mixture;

[0139] S3: The second mixture obtained in step S2 and 5 parts of calcium starch octenylsuccinate were stirred at 350 rpm for 10 minutes, and then 3 parts of aloe extract and 4 parts of benzalkonium chloride were added, and the mixture was stirred at 350 rpm for 10 minutes to obtain an antibacterial composition;

[0140] S4: After uniformly mixing the antibacterial composition obtained in step S3, 4 parts of tocopherol, 40 parts of hydrogenated styrene-butadiene block copolymer and 35 parts of polyethylene oxide, the mixture is added into a mold and sequentially subjected to a first hot pressing molding treatment, a second hot pressing molding treatment, a third hot pressing molding treatment and a fourth hot pressing molding treatment, wherein the temperature of the first hot pressing molding treatment is 130°C, the temperature of the second hot pressing molding treatment is 125°C, the temperature of the third hot pressing molding treatment is 120°C, and the temperature of the fourth hot pressing molding treatment is 100°C; the pressure of the first hot pressing molding treatment, the second hot pressing molding treatment, the third hot pressing molding treatment and the fourth hot pressing molding treatment is 28 MPa, and the time is 10 min; the cooling rate of the second hot pressing molding treatment, the third hot pressing molding treatment and the fourth hot pressing molding treatment is 5°C / min, to obtain a lubricating strip for a razor.

[0141] Comparative Example 2

[0142] This comparative example provides a lubricating strip for a razor, comprising the following components in parts by weight: 40 parts of hydrogenated styrene-butadiene block copolymer, 35 parts of oxidized polyethylene, 2 parts of benzethonium chloride, 4 parts of benzalkonium chloride, 3 parts of aloe extract, 11.5 parts of sodium hyaluronate, 5 parts of calcium starch octenylsuccinate, and 4 parts of tocopherol.

[0143] This comparative example also provides a method for preparing a lubricating strip for a razor, comprising the following steps:

[0144] S1: 11.5 parts of sodium hyaluronate were stirred at 70°C and 350 rpm for 10 min to obtain a gel;

[0145] S2: 2 parts of benzethonium chloride and the gel obtained in step S1 were stirred at 350 rpm for 10 minutes to obtain a second gel;

[0146] S3: The second gel obtained in step S2 and 5 parts of calcium starch octenylsuccinate were stirred at 350 rpm for 10 minutes, and then 3 parts of aloe extract and 4 parts of benzalkonium chloride were added and stirred at 350 rpm for 10 minutes to obtain an antibacterial composition;

[0147] S4: After uniformly mixing the antibacterial composition obtained in step S3, 4 parts of tocopherol, 40 parts of hydrogenated styrene-butadiene block copolymer and 35 parts of polyethylene oxide, the mixture is added into a mold and sequentially subjected to a first hot pressing molding treatment, a second hot pressing molding treatment, a third hot pressing molding treatment and a fourth hot pressing molding treatment, wherein the temperature of the first hot pressing molding treatment is 130°C, the temperature of the second hot pressing molding treatment is 125°C, the temperature of the third hot pressing molding treatment is 120°C, and the temperature of the fourth hot pressing molding treatment is 100°C; the pressure of the first hot pressing molding treatment, the second hot pressing molding treatment, the third hot pressing molding treatment and the fourth hot pressing molding treatment is 28 MPa, and the time is 10 min; the cooling rate of the second hot pressing molding treatment, the third hot pressing molding treatment and the fourth hot pressing molding treatment is 5°C / min, to obtain a lubricating strip for a razor.

[0148] Comparative Example 3

[0149] This comparative example provides a lubricating strip for a razor, the composition of which differs from that of Example 1 in that porous starch is used instead of calcium starch octenylsuccinate.

[0150] The difference between the preparation method of the lubricating strip for razors in this comparative example and that in Example 1 is that porous starch is used instead of calcium starch octenylsuccinate.

[0151] Performance Testing

[0152] The lubricating strips for razors obtained in the examples and comparative examples were subjected to performance tests using the following methods:

[0153] (1) Immediate antibacterial effect: When the lubricating strip is used for the first time, the antibacterial test suspension quantitative method in accordance with 7.3 of the "QB / T2738 Evaluation Method for Antibacterial and Antibacterial Effects of Daily Chemical Products" is used for testing;

[0154]

[0155] Where I is the average colony count of the control sample; II is the average colony count of the test sample.

[0156] (2) Long-term antibacterial effect: After the lubricating strips were used 10 times, the antibacterial test suspension quantitative method in 7.3 of the “QB / T2738 Evaluation Method for Antibacterial and Antibacterial Effects of Daily Chemical Products” was used for testing.

[0157]

[0158] Where I is the average colony count of the control sample; II is the average colony count of the test sample.

[0159] The test results are shown in Table 1.

[0160] Table 1

[0161] Immediate antibacterial rate Long-term antibacterial rate Example 1 100％ 90％ Example 2 93％ 80％ Example 3 92％ 81％ Example 4 92％ 82％ Example 5 93％ 83％ Example 6 95％ 86％ Example 7 98％ 87％ Example 8 96％ 86％ Example 9 96％ 86％ Example 10 95％ 84％ Example 11 93％ 81％ Example 12 92％ 83％ Comparative Example 1 91％ 75％ Comparative Example 2 90％ 75％ Comparative Example 3 90％ 74％

[0162] From the experimental data in Table 1, it can be seen that the instant antibacterial rate of the lubricating strip for razors of the present application is ≥92%, and the long-term antibacterial rate is ≥80%, indicating that the lubricating strip for razors of the present application has high instant antibacterial effect and long-term antibacterial effect.

[0163] From the experimental data of Examples 1 and 4-6, it can be seen that when the organic antibacterial agent is a quaternary ammonium salt antibacterial agent and / or a phenolic antibacterial agent, the instant antibacterial rate of the obtained razor lubricating strip is ≥95%, and the long-term antibacterial rate is ≥86%. This shows that when the organic antibacterial agent is a quaternary ammonium salt antibacterial agent and / or a phenolic antibacterial agent, the instant antibacterial effect and long-term antibacterial effect of the razor lubricating strip can be further improved.

[0164] From the experimental data of Example 1 and Examples 7-9, it can be seen that when the hot pressing forming is a multi-stage gradient cooling treatment, the immediate antibacterial rate of the obtained lubricating strip for razors is ≥98%, and the long-term antibacterial rate is ≥87%, indicating that when the hot pressing forming is a multi-stage gradient cooling treatment, the immediate antibacterial effect and long-term antibacterial effect of the obtained lubricating strip for razors are higher.

[0165] From the experimental data of Examples 1 and 10-12, it can be seen that when the pores of the porous substrate are filled with the second gel containing the organic antibacterial agent, and the organic antibacterial agent and aloe vera extract are adsorbed on the surface of the porous substrate, the resulting lubricating strip for a razor has an immediate antibacterial rate ≥100%, and a long-term antibacterial rate ≥90%. This indicates that when the pores of the porous substrate are filled with the second gel containing the organic antibacterial agent, and the organic antibacterial agent and aloe vera extract are adsorbed on the surface of the porous substrate, the immediate antibacterial effect and long-term antibacterial effect of the lubricating strip for a razor can be further improved.

[0166] The experimental data of Example 1 and Comparative Examples 1-3 show that when the antibacterial composition lacks sodium salt or oil phase components, or when other porous substrates are used, the resulting lubricating strip for a razor has an immediate antibacterial rate of ≤91% and a long-term antibacterial rate of ≤75%. This indicates that only by using calcium starch octenylsuccinate as the porous substrate and the antibacterial composition containing both sodium salt and oil phase components can a lubricating strip for a razor with high immediate and long-term antibacterial effects be obtained.

[0167] Finally, it should be noted that the above examples are used to illustrate the technical solutions of the present disclosure and not to limit the protection scope of the present disclosure. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present disclosure.

Claims

1. A lubricating strip for a razor, characterized in that: The invention comprises an antibacterial composition, which comprises the following components in parts by weight: 1-8 parts of calcium starch octenylsuccinate, 4-8 parts of fatty acids, 3-6 parts of fatty acid esters, 0.001-1 parts of sodium salts, 2-10 parts of organic antibacterial agents, and 2-4 parts of aloe extracts; the sodium salt is at least one of sodium hyaluronate and sodium polyglutamate.

2. The lubricating strip for a razor according to claim 1, wherein: The fatty acid includes at least one of oleic acid, stearic acid, lauric acid, myristic acid, and behenic acid.

3. The lubricating strip for a razor according to claim 1, wherein: The fatty acid ester is at least one of ethylhexyl isopalmitate, isopropyl palmitate, isopropyl myristate, caprylic / capric triglyceride, and isononyl isononanoate.

4. The lubricating strip for a razor according to claim 1, wherein: The organic antibacterial agent is at least one of urea antibacterial agents, imidazole antibacterial agents, isothiazolone antibacterial agents, quaternary ammonium salt antibacterial agents, biguanide antibacterial agents, and phenolic antibacterial agents.

5. The lubricating strip for a razor according to claim 4, wherein: The quaternary ammonium salt antibacterial agent is at least one of benzethonium chloride and benzalkonium chloride.

6. The lubricating strip for a razor according to claim 1, wherein: The preparation method of the antibacterial composition comprises the following steps: S1: heating and stirring the fatty acid, fatty acid ester and sodium salt to obtain a first gel; S2: mixing part of the organic antimicrobial agent with the first gel obtained in step S1 to obtain a second gel; S3: After the second gel and calcium starch octenylsuccinate are evenly mixed, the aloe vera extract and the remaining organic antibacterial agent are added and mixed evenly to obtain an antibacterial composition.

7. The lubricating strip for a razor according to claim 1, wherein: The lubricating strip for razors further comprises 35-50 parts by weight of hydrogenated styrene-butadiene block copolymer, 30-40 parts by weight of oxidized polyethylene and 3-6 parts of antioxidant.

8. A method for preparing a lubricating strip for a razor according to claim 7, characterized in that: The following steps are involved: The antibacterial composition, the antioxidant, the hydrogenated styrene-butadiene block copolymer and the oxidized polyethylene are uniformly mixed to obtain a mixture; The mixed material is hot-pressed to obtain a lubricating strip for a razor.

9. The method for preparing a lubricating strip for a razor according to claim 8, wherein: The temperature of the hot pressing molding is 100-130° C., the pressure is 25-30 MPa, and the time is 35-45 minutes.

10. A razor comprising a handle, a blade holder and a blade mounted on the blade holder, characterized in that: The razor holder is provided with a lubricating strip for a razor according to any one of claims 1 to 7 or a lubricating strip for a razor prepared by the method for preparing a lubricating strip for a razor according to any one of claims 8 to 9.

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