Jojoba oil textile finishing agent as well as preparation method and application thereof

Abstract

The invention relates to the field of functional finishing agents, and particularly discloses a jojoba oil textile finishing agent as well as a preparation method and application thereof. The anti-static agent comprises the following components in parts by weight: 20-30 parts of jojoba oil, 0-5 parts of squalane, 3-5 parts of an emulsifier, 1-2 parts of an alcohol co-emulsifier, 10-15 parts of an organic silicon softener, 5-10 parts of a waterborne polyurethane adhesive, 5-8 parts of an antistatic agent, 0-0.4 part of a preservative and 50-65 parts of water. The jojoba oil finishing agent is prepared by taking the jojoba oil as main grease and squalane as auxiliary grease, screening the emulsifier and adopting a direct emulsification process, and the prepared finishing agent is simple in process and stable in character. The jojoba oil is stable in character and not prone to volatilization, a microcapsule coating process is not needed, a tedious process is avoided by adopting a direct emulsification method, the jojoba oil is more easily absorbed close to the skin after the jojoba oil is applied to the fabric, and the overall hand feeling, the moisturizing performance and the antistatic performance of the fabric are greatly improved through the synergistic effect of the jojoba oil and the antistatic agent; the effect is obviously improved compared with that of singly using the antistatic agent.

Description

Technical Field

[0001] This invention relates to the field of functional finishing agents for fabrics, specifically to a jojoba oil textile finishing agent, its preparation method, and its application. Background Technology

[0002] Jojoba oil is the seed oil of the jojoba plant, belonging to the oleophobic family. As early as the 1940s in Europe, jojoba oil had already attracted the attention of the scientific community. Naturally extracted jojoba oil's main components are wax esters formed from long-chain unsaturated fatty acids and long-chain unsaturated fatty alcohols. It appears as a golden-yellow, transparent liquid, hence the name "liquid gold wax." Jojoba oil is mild in nature and does not irritate human skin or eyes. Due to its structural similarity to human epidermal sebum, it can mix with human sebum and is easily absorbed by the skin after application, forming a thin, non-greasy lipid layer with excellent moisturizing effects. Through long-term research and application, researchers have found that jojoba oil has a good auxiliary healing effect on burns and wounds; applying jojoba oil directly to the skin makes it smooth, soft, and non-greasy; when made into hair care products, it makes hair soft, shiny, and improves hair quality; it has an inhibitory effect on hair loss and dandruff; and it has a certain anti-inflammatory and swelling-reducing effect on common skin conditions such as acne and pimples. Therefore, jojoba oil has been widely used in various cosmetic products such as shampoos, conditioners, lubricants, moisturizers, and sunscreens.

[0003] Furthermore, jojoba oil is resistant to oxidation and rancidity, significantly different from other natural unsaturated oils. It does not easily become rancid during long-term storage and maintains its chemical stability. Even under high temperature and pressure conditions, it retains excellent stability, providing a fundamental guarantee for its application in various industries. Currently, the development and application of jojoba oil are mainly concentrated in the cosmetics, pharmaceutical, food, lubricant, and other fine chemical industries, with limited application in the textile field.

[0004] Jojoba oil is a liquid wax ester, similar to human sebum, and easily absorbed by the skin. Fabrics treated with jojoba oil are expected to release its natural components under pressure and friction, allowing for skin absorption and moisturizing effects. Currently, there is a lack of technology to effectively fix jojoba oil to fibers, making it difficult to achieve a lasting finish through conventional chemical cross-linking or coating processes. Therefore, developing a simple and multifunctional textile finishing agent using jojoba oil is of great significance.

[0005] Currently, there are also applications of plant extract oils in textile finishing. Chinese patent "CN109925983A" discloses a double-layer microcapsule based on shea butter and a method for finishing it into textile fabrics. The finished fabric can achieve the effects of moisturizing and preventing skin aging. However, it uses double-layer microcapsule encapsulation technology to encapsulate shea butter to prevent the oil from evaporating too quickly. The process is relatively complicated and costly. Summary of the Invention

[0006] In view of the above problems and shortcomings, the purpose of this invention is to provide a jojoba oil textile finishing agent, its preparation method and application.

[0007] To achieve the above objectives, in a first aspect, the present invention provides a jojoba oil textile finishing agent, comprising, by weight: 20-30 parts jojoba oil, 0-5 parts squalane, 3-5 parts emulsifier, 1-2 parts alcohol co-emulsifier, 10-15 parts silicone softener, 5-10 parts waterborne polyurethane adhesive, 5-8 parts antistatic agent, 0-0.4 parts preservative, and 50-65 parts water;

[0008] The emulsifier is composed of emulsifier A and emulsifier B in a mass ratio of 1:2 to 4, wherein emulsifier A is selected from at least one of Span-20, Span-40, Span-60, and Span-80, and emulsifier B is selected from at least one of Tween-40, Tween-60, and Tween-80.

[0009] As a further preferred embodiment of the present invention, the jojoba oil is an oil obtained by cold pressing jojoba seeds. The main component of jojoba oil is C. 42 -C 44 It contains liquid wax esters, which also contain abundant vitamins A, B, and E.

[0010] As a further preferred embodiment of the present invention, the alcohol co-emulsifier is selected from at least one of n-butanol, propylene glycol, 1,3-butanediol, and glycerol.

[0011] As a further preferred embodiment of the present invention, the organosilicon softener is an amino silicone oil and a polyether silicone oil, with a mass ratio of 1:1.5 to 1:2.

[0012] As a further preferred embodiment of the present invention, the antistatic agent is a nonionic surfactant and / or a cationic surfactant; more specifically, the antistatic agent is preferably polyethylene glycol and a quaternary ammonium salt cationic surfactant, with a mass ratio of 1 to 2:1, wherein the molecular weight of polyethylene glycol is 400 to 1000.

[0013] The present invention may use at least one of the commonly used preservatives in fabric finishing agents, such as sorbic acid and its salts, benzoic acid and its salts, isothiazolinones (such as Kathon), polyhexamethylene biguanide hydrochloride (PHMB), and o-phenylphenol.

[0014] According to a second aspect of the present invention, the present invention also provides a method for preparing a jojoba oil textile finishing agent, comprising:

[0015] (1) Mix the silicone softener with jojoba oil and stir until homogeneous to obtain solution A;

[0016] (2) Add emulsifier, alcohol co-emulsifier and waterborne polyurethane adhesive to water and stir evenly to obtain solution B;

[0017] (3) Mix solutions A and B together and homogenize them for 5 to 10 minutes using a homogenizer at 80,000 to 10,000 r / min until they are evenly mixed to obtain jojoba oil textile finishing agent.

[0018] According to a third aspect of the present invention, the present invention also provides an application of jojoba oil textile finishing agent on textiles, the application method being as follows:

[0019] S1. Weigh out jojoba oil textile finishing agent, add water to prepare a finishing agent solution of 20-30 g / L, and use the finishing agent solution to perform two dips and two nips on the textile fabric, with a nip-off rate of 90%-100%.

[0020] S2. After the finished textile is pre-dried at 90-100℃ for 3-5 minutes, it is then baked at 130-150℃ for 1-1.5 minutes to obtain jojoba oil-finished fabric.

[0021] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0022] (1) This invention uses jojoba oil as the main oil and squalane (a hydrogenated form of olive oil squalene) as an optional auxiliary oil. A jojoba oil finishing agent was prepared using a direct emulsification process after screening emulsifiers. The prepared finishing agent has a simple process and stable properties. Jojoba oil itself is stable and not easily volatile, therefore microencapsulation is unnecessary. The direct emulsification method avoids cumbersome processes, and the jojoba oil is more easily absorbed by the skin after being applied to fabrics.

[0023] (2) Applying jojoba oil finishing agent to fabric finishing, and working synergistically with antistatic agent, can significantly improve the overall hand feel, moisturizing properties and antistatic properties of the fabric, which is significantly better than using antistatic agent alone.

[0024] (3) The properties of jojoba oil and squalane-assisted oil in jojoba oil finishing agent complement each other, and achieve the comprehensive effects of "long-lasting moisturizing and stabilizing, gentle on the skin" through synergistic effect.

[0025] (4) Textile finishing agents were prepared using jojoba oil as raw material, which broadened their application in the textile field. Attached Figure Description

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] Figure 1 The images show the physical product of the jojoba oil textile finishing agent prepared in Example 1, (a) bottle label, and (b) macroscopic state of the finishing agent.

[0028] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0030] Unless otherwise defined, the technical terms used in the following embodiments have the same meanings as commonly understood by those skilled in the art to which this invention pertains. Unless otherwise specified, the experimental reagents used in the following embodiments are conventional biochemical reagents; and the experimental methods described are conventional methods.

[0031] Example 1

[0032] (I) Material preparation of jojoba oil textile finishing agent:

[0033] 25 parts jojoba oil, 0.8 parts Span-80, 3.2 parts Tween-80, 1 part propylene glycol, 8 parts amino silicone oil, 5 parts polyether silicone oil, 8 parts waterborne polyurethane, 4 parts polyethylene glycol-600, 2 parts octadecyltrimethylammonium chloride, 0.3 parts potassium sorbate, and 55 parts water.

[0034] (II) Preparation of jojoba oil finishing agent for textiles:

[0035] (1) Mix amino silicone oil, polyether silicone oil and jojoba oil, stir evenly to obtain solution A;

[0036] (2) Add Span-80, Tween-80, propylene glycol, waterborne polyurethane, polyethylene glycol-600, octadecyltrimethylammonium chloride, and potassium sorbate to water and stir until homogeneous to obtain solution B.

[0037] (3) Slowly add solution B to solution A and homogenize for 6 minutes at 10000 r / min using a homogenizer to obtain jojoba oil textile finishing agent.

[0038] (III) Preparation of jojoba oil-treated fabrics:

[0039] S1. Weigh the jojoba oil textile finishing agent prepared above, add water to prepare a finishing agent solution of 30 g / L, and use the finishing agent solution to perform two dips and two nips on the cotton fabric, with a nip-off rate of 100%.

[0040] S2. The finished textile is pre-dried at 100℃ for 3 minutes and then baked at 150℃ for 1 minute to obtain jojoba oil-finished fabric.

[0041] Comparative Example 1

[0042] As a control experiment for Example 1, the only difference was that no co-emulsifier was added, i.e., propylene glycol was omitted.

[0043] The fresh jojoba oil textile finishing agent prepared in Example 1 is as follows: Figure 1 As shown, the emulsion is light yellow with only a small amount of fine foam. In contrast, Comparative Example 1 did not add any emulsifier, which is not conducive to the emulsification of the finishing agent, resulting in larger foam. Therefore, during the finishing process of fabrics, Example 1 will not have its reaction cycle affected by foam, nor will it cause oil spots due to uneven finishing.

[0044] Comparative Example 2

[0045] As a control experiment for Example 1, the only difference was that Tween-80 was omitted and Span-80 (4.0 parts) was used as the single emulsifier.

[0046] Comparative Example 3

[0047] As a control experiment for Example 1, the only difference was that Tween-80 was omitted and Span-80 (8.0 parts) was used as the single emulsifier.

[0048] Comparative Example 4

[0049] As a control experiment for Example 1, the only difference was that Span-80 was omitted and Tween-80 (4.0 parts) was used as the single emulsifier.

[0050] Comparative Example 5

[0051] As a control experiment for Example 1, the only difference was that Span-80 was omitted and Tween-80 (8.0 parts) was used as the single emulsifier.

[0052] Comparative Example 6

[0053] As a control experiment for Example 1, the difference is that the total amount of emulsifier used is 1 part, of which Span-80 is 0.2 parts and Tween-80 is 0.8 parts.

[0054] Comparative Example 7

[0055] As a control experiment for Example 1, the difference was that the total amount of emulsifier used was 8 parts, of which Span-80 was 1.6 parts and Tween-80 was 6.4 parts.

[0056] Example 2

[0057] (I) Material preparation of jojoba oil textile finishing agent:

[0058] 20 parts jojoba oil, 0.9 parts Span-20, 2.1 parts Tween-40, 1 part glycerin, 6 parts amino silicone oil, 4 parts polyether silicone oil, 5 parts waterborne polyurethane, 3.5 parts polyethylene glycol-400, 1.75 parts octadecyltrimethylammonium chloride, 0.2 parts potassium sorbate, and 50 parts water.

[0059] (II) Preparation of jojoba oil finishing agent for textiles:

[0060] (1) Mix amino silicone oil, polyether silicone oil and jojoba oil, stir evenly to obtain solution A;

[0061] (2) Add Span-20, Tween-40, glycerin, waterborne polyurethane, polyethylene glycol-400, octadecyltrimethylammonium chloride, and potassium sorbate to water and stir until homogeneous to obtain solution B.

[0062] (3) Slowly add solution B to solution A, homogenize with a homogenizer at 10000r / min for 5min, mix evenly, and obtain jojoba oil textile finishing agent.

[0063] (III) Preparation of jojoba oil-finished fabric: The method is the same as in Example 1.

[0064] Example 3

[0065] (I) Material preparation of jojoba oil textile finishing agent:

[0066] 30 parts jojoba oil, 1.5 parts Span-40, 3.5 parts Tween-60, 2 parts n-butanol, 10 parts amino silicone oil, 5 parts polyether silicone oil, 10 parts waterborne polyurethane, 5 parts polyethylene glycol-1000, 2.5 parts octadecyltrimethylammonium chloride, 0.4 parts potassium sorbate, and 65 parts water.

[0067] (I) Preparation of jojoba oil finishing agent for textiles:

[0068] (1) Mix amino silicone oil, polyether silicone oil and jojoba oil, stir evenly to obtain solution A;

[0069] (2) Add Span-40, Tween-60, n-butanol, waterborne polyurethane, polyethylene glycol-1000, octadecyltrimethylammonium chloride, and potassium sorbate to water and stir until homogeneous to obtain solution B.

[0070] (3) Slowly add solution B to solution A, homogenize with a homogenizer at 10000r / min for 8min, mix evenly, and obtain jojoba oil textile finishing agent.

[0071] (III) Preparation of jojoba oil-finished fabric: The method is the same as in Example 1.

[0072] Example 4

[0073] (I) Material preparation of jojoba oil textile finishing agent:

[0074] 25 parts jojoba oil, 0.8 parts Span-60, 3.2 parts Tween-60, 1 part 1,3-butanediol, 9 parts amino silicone oil, 6 parts polyether silicone oil, 8 parts waterborne polyurethane, 4 parts polyethylene glycol-800, 2 parts octadecyltrimethylammonium chloride, 0.3 parts potassium sorbate, and 60 parts water.

[0075] (II) Preparation of jojoba oil finishing agent for textiles:

[0076] (1) Mix amino silicone oil, polyether silicone oil and jojoba oil, stir evenly to obtain solution A;

[0077] (2) Add Span-60, Tween-60, propylene glycol, waterborne polyurethane, polyethylene glycol-800, octadecyltrimethylammonium chloride, and potassium sorbate to water and stir until homogeneous to obtain solution B.

[0078] (3) Slowly add solution B to solution A, homogenize with a homogenizer at 10000r / min for 6min, mix evenly, and obtain jojoba oil textile finishing agent.

[0079] (III) Preparation of jojoba oil-finished fabric: The method is the same as in Example 1.

[0080] Example 5

[0081] The only difference from Example 1 is that the jojoba oil textile finishing agent also includes 1 part squalane in its composition.

[0082] Example 6

[0083] The only difference from Example 1 is that the jojoba oil textile finishing agent also includes 3 parts of squalane in its composition.

[0084] Example 7

[0085] The only difference from Example 1 is that the jojoba oil textile finishing agent also includes 5 parts of squalane in its composition.

[0086] Example 8

[0087] The only difference from Example 1 is that the jojoba oil textile finishing agent also includes 10 parts of squalane in its composition.

[0088] Comparative Example 8

[0089] The only difference from Example 1 is that jojoba oil is not added to the material of the jojoba oil textile finishing agent, that is, a conventional textile finishing agent without jojoba oil is prepared.

[0090] Comparative Example 9

[0091] The only difference from Example 1 is that the amount of jojoba oil added to the jojoba oil textile finishing agent is 10 parts, that is, the jojoba oil textile finishing agent with too low a content of jojoba oil is prepared.

[0092] Comparative Example 10

[0093] The only difference from Example 1 is that the amount of jojoba oil added to the jojoba oil textile finishing agent is 40 parts, that is, a jojoba oil textile finishing agent with an excessive amount of jojoba oil is prepared.

[0094] I. Performance Testing of Finishing Agents

[0095] The stability of the finishing agents prepared in Example 1 and Comparative Examples 1-7 was evaluated. Samples from each example and comparative example were taken and placed in a dry, dark place at room temperature. After standing for 1 day, 15 days, 30 days and 60 days, the unevenness and stratification of each sample were observed. The results are summarized in Table 1.

[0096] Table 1 Results of stability test of finishing agent

[0097]

[0098]

[0099] As shown in Table 1, the finishing agent sample of Example 1 remained stable after being stored at room temperature for two months without stratification. In contrast, Comparative Example 1, which did not add a co-emulsifier, showed decreased stability and stratification after 30 days. The finishing agents prepared using normal or excessive amounts of a single emulsifier in Comparative Examples 2-5 all exhibited poor stability, with a maximum storage time of no more than 30 days. In Comparative Example 6, insufficient emulsifier resulted in stratification after only 15 days. In Comparative Examples 7 and 8, adding too little or too much emulsifier was detrimental to the stability of the finishing agents. The addition of squalane in Examples 6 and 7 did not affect the stability of the finishing agents. In practical applications, finishing agents with poor stability are prone to demulsification, stratification, and precipitation during storage, leading to product failure. They require frequent stirring or may become unusable, resulting in limited long-term storage and the need for immediate preparation and use, making them unsuitable for large-scale industrial production. When preparing working solutions, finishing agents with poor stability may experience demulsification, flocculation, and oil floating due to water quality issues, abnormal pH values, or when compounded with other auxiliaries (such as softeners and crosslinking agents). Furthermore, unstable working solutions have uneven distribution of active ingredients, which can lead to insufficient or excessive treatment of certain areas when applied to fabrics. Uneven application of oil-based finishing agents can easily cause oil stains.

[0100] II. Performance Testing of Finished Fabrics

[0101] Antistatic performance test: The textiles were tested according to GB / T 12703.5-2020 "Test methods for electrostatic properties of textiles - Part 5: Rotational mechanical friction method".

[0102] Hand feel test: The physical hand feel evaluation method is adopted. After the finished fabric is cooled and re-moistened, it is comprehensively evaluated by professional hand feel evaluators in terms of softness, smoothness, and fluffiness. The original fabric hand feel is set as level 1, and the highest is level 5.

[0103] Textile moisture regain test: The moisture regain of textiles is determined according to GB / T 9995-1997 "Determination of moisture content and moisture regain of textile materials by oven drying method".

[0104] The results of the above antistatic properties, hand feel and moisture regain tests are summarized in Tables 2 and 3, respectively.

[0105] Table 2. Test results of antistatic properties of finished fabrics

[0106]

[0107]

[0108] As shown in Table 2, the finishing agents prepared in Examples 1-4 exhibit superior antistatic properties compared to untreated cotton fabrics. The antistatic properties decreased slightly after 10 washes, while the untreated fabric became rougher and had a higher coefficient of friction after washing, making it more prone to static electricity and resulting in a higher static voltage. Examples 5-8 further added different amounts of squalane, and the antistatic properties of the fabrics increased with the amount of squalane added. However, adding excessive squalane did not significantly improve the antistatic properties of the fabrics. Comparative Examples 8 and 9 showed poor antistatic effects in fabrics treated without or with insufficient amounts of jojoba oil, with a more pronounced decrease in performance after washing. Comparative Example 10 added excessive jojoba oil, but no further significant improvement in antistatic and wash resistance was observed.

[0109] Table 3. Results of tests on the moisture retention properties and hand feel of finished fabrics.

[0110]

[0111] As shown in Table 3, the finishing agents prepared in Examples 1-4 significantly improved the moisture regain and moisturizing performance of the untreated cotton fabric compared to the untreated fabric, achieving a hand feel of grade 5. The performance decreased slightly after 10 washes, while the untreated fabric had a poor hand feel of only grade 1. This indicates that jojoba oil can improve the wet performance and hand feel of the fabric, and the effect is stable, with no significant decrease in effect after 10 washes.

[0112] In Examples 5-8, different amounts of squalane were added. The fabric moisture regain increased with the increase of squalane dosage. This is because squalane and jojoba oil form a "double water-locking" effect, which prolongs the moisturizing effect. However, after adding excessive squalane, the fabric's moisturizing performance was not significantly improved, but the hand feel decreased to level 3.

[0113] Compared with Example 1, the fabrics treated with no jojoba oil or insufficient jojoba oil in Comparative Examples 8 and 9 showed limited improvement in moisturizing performance, and their moisturizing performance and hand feel decreased after washing; Comparative Example 10 added excessive jojoba oil, and the fabric moisture regain did not show any further significant improvement, and the hand feel also decreased significantly.

[0114] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and various changes or modifications can be made to these embodiments without departing from the principles and essence of the present invention. The scope of protection of the present invention is defined only by the appended claims.

Claims

1. A jojoba oil textile finishing agent, characterized in that, By weight, it includes: 20-30 parts jojoba oil, 0-5 parts squalane, 3-5 parts emulsifier, 1-2 parts alcohol co-emulsifier, 10-15 parts silicone softener, 5-10 parts waterborne polyurethane adhesive, 5-8 parts antistatic agent, 0-0.4 parts preservative, and 50-65 parts water. The emulsifier is composed of emulsifier A and emulsifier B in a mass ratio of 1:2 to 4, wherein emulsifier A is selected from at least one of Span-20, Span-40, Span-60, and Span-80, and emulsifier B is selected from at least one of Tween-40, Tween-60, and Tween-80.

2. The jojoba oil textile finishing agent according to claim 1, characterized in that, Jojoba oil is the oil obtained by cold pressing jojoba seeds.

3. The jojoba oil textile finishing agent according to claim 1, characterized in that, The alcohol-based co-emulsifier is selected from at least one of n-butanol, propylene glycol, 1,3-butanediol, and glycerol.

4. The jojoba oil textile finishing agent according to claim 1, characterized in that, The organosilicon softener is an amino silicone oil and a polyether silicone oil, with a mass ratio of 1:1.5 to 1:

2.

5. The jojoba oil textile finishing agent according to claim 1, characterized in that, The antistatic agent is a nonionic surfactant and / or a cationic surfactant.

6. The jojoba oil textile finishing agent according to claim 5, characterized in that, The antistatic agent is selected from polyethylene glycol and quaternary ammonium salt cationic surfactants, with a mass ratio of 1 to 2:1, wherein the molecular weight of polyethylene glycol is 400 to 1000.

7. The method for preparing the jojoba oil textile finishing agent according to any one of claims 1-6, characterized in that, include: (1) Mix the silicone softener with jojoba oil and stir until homogeneous to obtain solution A; (2) Add emulsifier, alcohol co-emulsifier and waterborne polyurethane adhesive to water and stir evenly to obtain solution B; (3) Mix solutions A and B together and homogenize them for 5 to 10 minutes using a homogenizer at 80,000 to 10,000 r / min until they are evenly mixed to obtain jojoba oil textile finishing agent.

8. The application of the jojoba oil textile finishing agent as described in any one of claims 1-6 on textiles, characterized in that, The method is as follows: S1. Weigh out jojoba oil textile finishing agent, add water to prepare a finishing agent solution of 20-30 g / L, and use the finishing agent solution to perform two dips and two nips on the textile fabric, with a nip-off rate of 90%-100%. S2. After the finished textile is pre-dried at 90-100℃ for 3-5 minutes, it is then baked at 130-150℃ for 1-1.5 minutes to obtain jojoba oil-finished fabric.

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