Bamboo fiber blanket fabric and preparation method thereof

Abstract

The invention relates to the technical field of textiles, and particularly discloses a bamboo fiber blanket fabric and a preparation method thereof. The invention discloses a bamboo fiber blanket fabric. Raw materials of the fabric comprise bamboo fibers and modified fibers, the raw materials of the modified fiber comprise the following components in parts by weight: 80-100 parts of a viscose spinning solution, 3-5 parts of an anti-mite extract, 1-3 parts of essential oil microcapsules and 1-3 parts of chitosan modified silver powder. The fabric disclosed by the invention not only has a relatively good anti-mite effect, but also has an excellent antibacterial effect.

Description

Technical Field

[0001] The present application relates to the technical field of textiles, and in particular to a bamboo fiber blanket fabric and a preparation method thereof. Background Art

[0002] As a necessity of life, home textile products not only bring physical comfort to people through their soft characteristics, but also affect people's emotions and physiological activities through their styles and cultural connotations. With the improvement of people's consumption level and the change of consumption consciousness, people's taste and cleanliness requirements for home textile products are getting higher and higher. Blankets are commonly used home textile products. There are many varieties of blankets on the market, most of which are chemical fiber fleece blankets, pure cotton multi-layer or honeycomb blankets. These blankets are made of chemical fiber fleece or pure cotton plus chemical fiber fillings. They have good warmth retention, but are easy to get dusty and breed bacteria and mites. Summary of the invention

[0003] In order to improve the anti-mite effect of fabrics, the present application provides a bamboo fiber blanket fabric and a preparation method thereof.

[0004] In the first aspect, the present application provides a bamboo fiber blanket fabric, which adopts the following technical solution: A bamboo fiber blanket fabric, the raw materials of the fabric comprising bamboo fiber and modified fiber; the raw materials of the modified fiber comprising the following components in parts by weight: 80-100 parts of viscose spinning solution, 3-5 parts of anti-mite extract, 1-3 parts of essential oil microcapsules, and 1-3 parts of chitosan modified silver powder.

[0005] By adopting the above technical scheme, anti-mite extracts, essential oil microcapsules and chitosan modified silver powder are added when viscose spinning solution is used for spinning. The anti-mite extracts and essential oil microcapsules have good anti-mite effects, and the chitosan modified silver powder makes the silver powder have a better dispersion effect. The silver powder itself has a good antibacterial and anti-mite effect, and the chitosan on the surface also has a certain anti-mite effect. Therefore, the combination of anti-mite extracts, essential oil microcapsules and chitosan modified silver powder makes the modified fiber have a good anti-mite effect, thereby improving the anti-mite effect of the final fabric.

[0006] In a specific embodiment, the anti-mite extract includes one or more of Artemisia annua extract, Artemisia argyi extract, Sophora flavescens extract, Stemona japonica extract, and Peppermint extract.

[0007] By adopting the above technical scheme, Artemisia annua extract, Artemisia argyi extract, Sophora flavescens extract, Stemona japonica extract and Peppermint extract all have good anti-mite effect, and are natural extracts with no side effects on the human body.

[0008] In a specific embodiment, the method for preparing the essential oil microcapsules comprises the following steps: The composite essential oil and methyl methacrylate are stirred and mixed uniformly to obtain a mixed phase; an initiator is added to the mixed phase, ultrasonically dispersed, and then poly(styrene-CO-maleic anhydride) is added, high-speed shearing and stirring are performed, and finally heating and stirring are performed for reaction to obtain essential oil microcapsules.

[0009] By adopting the above technical solution, the essential oil microcapsules can wrap the compound essential oil, so that the compound essential oil is slowly released, and the anti-mite effect of the fabric can be more lasting.

[0010] In a specific embodiment, the weight ratio of the composite essential oil, the methyl methacrylate, the initiator, and the poly(styrene-CO-maleic anhydride) is 1:(0.4-0.6):(0.01-0.02):(2.5-3.5).

[0011] By adopting the above technical scheme, the ratio of the raw material composite essential oil, methyl methacrylate, initiator, and poly(styrene-CO-maleic anhydride) is further limited, so that the essential oil microcapsules can be better formed.

[0012] In a specific embodiment, the composite essential oil includes a mixture of pure camphor essential oil, thyme essential oil, sweet orange essential oil, and lavender essential oil.

[0013] By adopting the above technical scheme, pure camphor essential oil, thyme essential oil, sweet orange essential oil and lavender essential oil all have good antibacterial and anti-mite effects, and can also emit a fresh fragrance.

[0014] In a specific embodiment, the method for preparing the chitosan-modified silver powder comprises the following steps: Dispersing nano silver powder in water to form a silver powder dispersion; Add chitosan to the acetic acid aqueous solution and stir evenly to completely dissolve the chitosan to obtain a chitosan solution; Adding the silver powder dispersion into the chitosan solution, stirring evenly to obtain a mixed solution; Add glutaraldehyde to the mixed solution, stir evenly, let stand, add sodium hydroxide solution, soak, filter, wash, dry and grind to obtain chitosan modified silver powder.

[0015] By adopting the above technical scheme, nano silver powder is first dispersed in water to obtain a silver powder dispersion, and then the silver powder dispersion is added to a chitosan solution, followed by adding glutaraldehyde to cross-link the hydroxyl groups on the chitosan so that the chitosan coats the silver powder, thereby obtaining chitosan-modified silver powder with a better dispersion effect.

[0016] In a specific embodiment, the mass fraction of silver powder in the silver powder dispersion is 1%-5%; the mass fraction of chitosan in the chitosan solution is 0.1%-0.5%; and the weight ratio of silver powder dispersion to chitosan solution in the mixed solution is 1:(8-10).

[0017] By adopting the above technical solution, the ratio of silver powder to chitosan is further limited, so that chitosan can be better coated on the surface of the silver powder, thereby improving the modification effect.

[0018] In a second aspect, the present application provides a method for preparing a bamboo fiber blanket fabric, which adopts the following technical solution: A method for preparing a bamboo fiber blanket fabric comprises the following steps: Preparation of modified fiber: firstly, adding the anti-mite extract into water to obtain an anti-mite extract aqueous solution, then adding the anti-mite extract aqueous solution, essential oil microcapsules, and chitosan modified silver powder into viscose spinning solution, stirring and mixing evenly, degassing, and then obtaining modified fiber according to a wet spinning process; Weaving: Blending bamboo fiber and modified fiber to weave fabric to obtain coarse fabric; Finishing: the rough fabric is subjected to spreading, singeing, pre-treatment, shaping, baking, pre-shrinking and curling to obtain the bamboo fiber blanket fabric.

[0019] By adopting the above technical scheme, the anti-mite extract aqueous solution, essential oil microcapsules, chitosan modified silver powder, and viscose spinning solution are first stirred and evenly mixed, then wet-spun to obtain modified fibers, and then the modified fibers and bamboo fibers are blended into fabrics. Finally, the obtained coarse fabric is subjected to slitting, singeing, pre-treatment, shaping, baking, pre-shrinking, and curling to obtain a bamboo fiber blanket fabric with good anti-mite effect.

[0020] In a specific implementation manner, in the weaving step, the weight ratio of the bamboo fiber to the modified fiber is 1:(0.1-0.3).

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. In the present application, when viscose spinning solution is used for spinning, anti-mite extract, essential oil microcapsules, and chitosan-modified silver powder are added. The anti-mite extract and essential oil microcapsules have good anti-mite effects. The chitosan-modified silver powder makes the silver powder have a good dispersion effect. The silver powder itself has a good antibacterial and anti-mite effect, and the chitosan on the surface also has a certain anti-mite effect. Therefore, the combination of the anti-mite extract, essential oil microcapsules, and chitosan-modified silver powder makes the modified fiber have a good anti-mite effect, thereby improving the anti-mite effect of the final fabric; 2. The essential oil microcapsules in this application can encapsulate the composite essential oil, so that the composite essential oil is slowly released, making the anti-mite effect of the fabric more lasting; 3. The method of the present application is to firstly stir and mix the anti-mite extract aqueous solution, essential oil microcapsules, chitosan modified silver powder and viscose spinning solution evenly, then wet-spin to obtain modified fibers, then blend the modified fibers and bamboo fibers into a blended fabric, and finally perform slitting, singeing, pre-treatment, shaping, baking, pre-shrinking and curling on the obtained coarse fabric to obtain a bamboo fiber blanket fabric with good anti-mite effect. DETAILED DESCRIPTION

[0022] The present application is further described in detail below with reference to the embodiments.

[0023] All raw materials in the embodiment can be obtained commercially. The anti-mite extract includes but is not limited to a mixture of one or more of Artemisia annua extract, Artemisia argyi extract, Sophora flavescens extract, Stemona tuberosa extract, and Peppermint extract. In the present application, a mixture of Artemisia argyi extract and Peppermint extract is preferred.

[0024] Preparation Example Preparation Example 1 Preparation Example 1 provides a method for preparing essential oil microcapsules, comprising the following steps: The composite essential oil and methyl methacrylate are stirred and mixed evenly to obtain a mixed phase; an initiator is added to the mixed phase, ultrasonically dispersed for 6 minutes, and then poly(styrene-CO-maleic anhydride) is added, and high-speed shear stirring is carried out at a speed of 6000r / min for 35 minutes, and finally heated to 75°C, stirred and reacted for 5 hours to obtain essential oil microcapsules; wherein the initiator is azobisisobutyronitrile; the composite essential oil is a mixture of pure camphor essential oil, thyme essential oil, sweet orange essential oil, and lavender essential oil, and the weight ratio of pure camphor essential oil, thyme essential oil, sweet orange essential oil, and lavender essential oil is 1:1:1:1; the weight ratio of the composite essential oil, methyl methacrylate, initiator, and poly(styrene-CO-maleic anhydride) is 1:0.4:0.01:2.5.

[0025] Preparation Example 2 The difference between Preparation Example 2 and Preparation Example 1 is that the weight ratio of the composite essential oil, methyl methacrylate, initiator, and poly(styrene-CO-maleic anhydride) is 1:0.5:0.015:3; the remaining steps are consistent with Preparation Example 1.

[0026] Preparation Example 3 The difference between Preparation Example 3 and Preparation Example 1 is that the weight ratio of the composite essential oil, methyl methacrylate, initiator, and poly(styrene-CO-maleic anhydride) is 1:0.6:0.02:3.5; the remaining steps are consistent with Preparation Example 1.

[0027] Preparation Example 4 The difference between Preparation Example 4 and Preparation Example 2 is that the composite essential oil is a mixture of pure camphor essential oil and thyme essential oil, and the weight ratio of pure camphor essential oil to thyme essential oil is 1:1; the remaining steps are consistent with Preparation Example 2.

[0028] Preparation Example 5 The difference between Preparation Example 5 and Preparation Example 2 is that the composite essential oil is a mixture of sweet orange essential oil and lavender essential oil, and the weight ratio of sweet orange essential oil to lavender essential oil is 1:1; the remaining steps are consistent with Preparation Example 2.

[0029] Preparation Example 6 Preparation Example 6 provides a method for preparing chitosan-modified silver powder, comprising the following steps: Adding nano silver powder into water and dispersing by ultrasonic for 40 minutes to form a silver powder dispersion liquid; wherein the mass fraction of silver powder in the silver powder dispersion liquid is 1%; Add chitosan to an aqueous solution of acetic acid with a volume fraction of 1%, stir evenly to dissolve the chitosan completely, and obtain a chitosan solution; wherein the mass fraction of chitosan in the chitosan solution is 0.1%; Adding the silver powder dispersion into the chitosan solution and stirring evenly to obtain a mixed solution; wherein the weight ratio of the silver powder dispersion to the chitosan solution in the mixed solution is 1:8; Add glutaraldehyde to the mixed solution, stir for 1 hour, let stand for 10 hours, add an appropriate amount of 0.1 mol / L sodium hydroxide solution, soak until the mixed solution becomes a gel, filter, wash, dry and grind to obtain chitosan modified silver powder; the weight ratio of glutaraldehyde to chitosan is 8:5.

[0030] Preparation Example 7 The difference between Preparation Example 7 and Preparation Example 6 is that the nano silver powder is added to water and ultrasonically dispersed for 40 minutes to form a silver powder dispersion; wherein the mass fraction of the silver powder in the silver powder dispersion is 3%; Add chitosan to an aqueous solution of acetic acid with a volume fraction of 1%, stir evenly to dissolve the chitosan completely, and obtain a chitosan solution; wherein the mass fraction of chitosan in the chitosan solution is 0.3%; The silver powder dispersion was added to the chitosan solution and stirred evenly to obtain a mixed solution; wherein the weight ratio of the silver powder dispersion to the chitosan solution in the mixed solution was 1:9; and the remaining steps were consistent with Preparation Example 6.

[0031] Preparation Example 8 The difference between Preparation Example 8 and Preparation Example 6 is that the nano silver powder is added to water and ultrasonically dispersed for 40 minutes to form a silver powder dispersion; wherein the mass fraction of the silver powder in the silver powder dispersion is 5%; Add chitosan to an aqueous solution of acetic acid with a volume fraction of 1%, stir evenly to dissolve the chitosan completely, and obtain a chitosan solution; wherein the mass fraction of chitosan in the chitosan solution is 0.5%; The silver powder dispersion was added to the chitosan solution and stirred evenly to obtain a mixed solution; wherein the weight ratio of the silver powder dispersion to the chitosan solution in the mixed solution was 1:10; and the remaining steps were consistent with Preparation Example 6. Example

[0032] Example 1 Embodiment 1 provides a method for preparing a bamboo fiber blanket fabric, comprising the following steps: Preparation of modified fiber: first, 3 kg of anti-mite extract was added to water to obtain an anti-mite extract aqueous solution with a concentration of 20%, and then the anti-mite extract aqueous solution, 1 kg of essential oil microcapsules in Preparation Example 1, and 1 kg of chitosan modified silver powder in Preparation Example 6 were added to 80 kg of viscose spinning solution, stirred and mixed evenly, degassed, and then the modified fiber was obtained according to the wet spinning process; wherein the anti-mite extract was a mixture of wormwood extract and mint extract, and the weight ratio of wormwood extract to mint extract was 1:1; the cellulose content in the viscose spinning solution was 8.9%; Weaving: blending bamboo fiber and modified fiber to obtain coarse fabric; wherein the weight ratio of bamboo fiber to modified fiber is 1:0.2; Finishing: the rough fabric is subjected to spreading, singeing, pre-treatment, shaping, baking, pre-shrinking and curling to obtain the bamboo fiber blanket fabric.

[0033] Example 2 The difference between Example 2 and Example 1 is that the essential oil microcapsules are the essential oil microcapsules in Preparation Example 2; and the remaining steps are consistent with Example 1.

[0034] Example 3 The difference between Example 3 and Example 1 is that the essential oil microcapsules are the essential oil microcapsules in Preparation Example 3; the remaining steps are consistent with Example 1.

[0035] Example 4 The difference between Example 4 and Example 1 is that the essential oil microcapsules are the essential oil microcapsules in Preparation Example 4; the remaining steps are consistent with Example 1.

[0036] Example 5 The difference between Example 5 and Example 1 is that the essential oil microcapsules are the essential oil microcapsules in Preparation Example 5; the remaining steps are consistent with Example 1.

[0037] Example 6 The difference between Example 6 and Example 3 is that the chitosan-modified silver powder is the chitosan-modified silver powder in Preparation Example 7; the remaining steps are consistent with Example 3.

[0038] Example 7 The difference between Example 7 and Example 3 is that the chitosan-modified silver powder is the chitosan-modified silver powder in Preparation Example 8; the remaining steps are consistent with Example 3.

[0039] Example 8 The difference between Example 8 and Example 6 is that the modified fiber is prepared by first adding 4 kg of anti-mite extract to water to obtain an anti-mite extract aqueous solution with a concentration of 20%, then adding the anti-mite extract aqueous solution, 2 kg of the essential oil microcapsules in Preparation Example 3, and 2 kg of the chitosan modified silver powder in Preparation Example 7 to 90 kg of viscose spinning solution, stirring and mixing evenly, degassing, and then obtaining the modified fiber according to the wet spinning process; the remaining steps are consistent with Example 6.

[0040] Example 9 The difference between Example 9 and Example 6 is that the modified fiber is prepared by first adding 5 kg of anti-mite extract to water to obtain an anti-mite extract aqueous solution with a concentration of 20%, then adding the anti-mite extract aqueous solution, 3 kg of essential oil microcapsules in Preparation Example 3, and 3 kg of chitosan modified silver powder in Preparation Example 7 to 100 kg of viscose spinning solution, stirring and mixing evenly, degassing, and then obtaining the modified fiber according to the wet spinning process; the remaining steps are consistent with Example 6.

[0041] Comparative Example Comparative Example 1 Comparative Example 1 provides a method for preparing a bamboo fiber blanket fabric, comprising the following steps: Weaving: Weaving bamboo fibers to obtain coarse fabrics; Finishing: the rough fabric is subjected to spreading, singeing, pre-treatment, shaping, baking, pre-shrinking and curling to obtain the bamboo fiber blanket fabric.

[0042] Comparative Example 2 The difference between Comparative Example 2 and Example 1 is that, in the preparation of the modified fiber, 5 kg of anti-mite extract is first added to water to obtain an anti-mite extract aqueous solution with a concentration of 20%, and then the anti-mite extract aqueous solution is added to 80 kg of viscose spinning solution, stirred and mixed evenly, degassed, and then the modified fiber is obtained according to the wet spinning process; the remaining steps are consistent with Example 1.

[0043] Comparative Example 3 The difference between Comparative Example 3 and Example 1 is that, in the preparation of the modified fiber, 5 kg of the essential oil microcapsules in Preparation Example 1 are added to 80 kg of viscose spinning solution, stirred and mixed evenly, degassed, and then the modified fiber is obtained according to the wet spinning process; the remaining steps are consistent with Example 1.

[0044] Comparative Example 4 The difference between Comparative Example 4 and Example 1 is that, in the preparation of the modified fiber, 5 kg of the chitosan-modified silver powder in Preparation Example 6 is added to 80 kg of viscose spinning solution, stirred and mixed evenly, degassed, and then the modified fiber is obtained according to the wet spinning process; the remaining steps are consistent with Example 1.

[0045] Performance testing of anti-mite performance: According to GB / T24253-2009 "Evaluation of anti-mite performance of textiles", the fabrics in each embodiment and comparative example were tested, and dust mites were selected as the test mites. Each test sample was tested in parallel in 5 groups, and the average value was taken to obtain the avoidance rate. The higher the avoidance rate, the better the anti-mite effect of the fabric.

[0046] Table 1 Fabric performance test results sample Avoidance rate (%) Example 1 86.5 Example 2 89.3 Example 3 87.9 Example 4 87.1 Example 5 87.3 Example 6 94.5 Example 7 92.0 Example 8 97.9 Example 9 96.5 Comparative Example 1 72.2 Comparative Example 2 80.5 Comparative Example 3 78.9 Comparative Example 4 81.3 Combining Example 1 and Comparative Examples 1-4, the anti-mite effect of the fabric in Example 1 is the best. It can be seen that when weaving, bamboo fiber and modified fiber are used to blend the fabric. The bamboo fiber itself has a certain anti-mite effect. The anti-mite extract, essential oil microcapsule and chitosan modified silver powder in the modified fiber make it have a better anti-mite effect, thereby improving the anti-mite effect of the final fabric.

[0047] Combined with Examples 1-3, the anti-mite effect of the fabric in Example 2 is the best. It can be seen that when preparing essential oil microcapsules, the ratio of the composite essential oil, methyl methacrylate, initiator, and poly(styrene-CO-maleic anhydride) in Preparation Example 2 is optimal, thereby obtaining the best anti-mite effect of the essential oil microcapsules.

[0048] In combination with Example 2, Example 4 and Example 5, the anti-mite effect of the fabric in Example 2 is the best. It can be seen that when preparing the essential oil microcapsules, the composite essential oil is preferably a mixture of pure camphor essential oil, thyme essential oil, sweet orange essential oil and lavender essential oil. The anti-mite effect of the essential oil microcapsules prepared by the combination of pure camphor essential oil, thyme essential oil, sweet orange essential oil and lavender essential oil is better.

[0049] Combining Example 2, Example 6 and Example 7, the anti-mite effect of the fabric in Example 6 is the best. It can be seen that when preparing chitosan modified silver powder, the ratio of silver powder to chitosan in Preparation Example 7 is optimal, so that the performance of chitosan modified silver powder is the best, and therefore the fabric finally obtained has the best anti-mite effect.

[0050] Combining Example 6, Example 8 and Example 9, the anti-mite effect of the fabric in Example 8 is the best. It can be seen that when preparing the modified fiber, the amount of raw materials used is increased, and the anti-mite effect of the fabric finally obtained shows a trend of first increasing and then decreasing.

[0051] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed. However, as long as it is within the scope of the claims of the present application, it shall be protected by the patent law.

Claims

1. A bamboo fiber blanket fabric, characterized in that: The raw materials of the fabric include bamboo fiber and modified fiber; the raw materials of the modified fiber include the following components in parts by weight: 80-100 parts of viscose spinning solution, 3-5 parts of anti-mite extract, 1-3 parts of essential oil microcapsules, and 1-3 parts of chitosan modified silver powder.

2. The bamboo fiber blanket fabric according to claim 1, characterized in that: The anti-mite extract includes one or more of an Artemisia annua extract, an Artemisia argyi extract, a Sophora flavescens extract, a Stemona japonica extract, and a Peppermint extract.

3. The bamboo fiber blanket fabric according to claim 1, characterized in that: The preparation method of the essential oil microcapsules comprises the following steps: The composite essential oil and methyl methacrylate are stirred and mixed uniformly to obtain a mixed phase; an initiator is added to the mixed phase, ultrasonically dispersed, and then poly(styrene-CO-maleic anhydride) is added, high-speed shearing and stirring are performed, and finally heating and stirring are performed for reaction to obtain essential oil microcapsules.

4. The bamboo fiber blanket fabric according to claim 3, characterized in that: The weight ratio of the composite essential oil, the methyl methacrylate, the initiator and the poly(styrene-CO-maleic anhydride) is 1:(0.4-0.6):(0.01-0.02):(2.5-3.5).

5. The bamboo fiber blanket fabric according to claim 3, characterized in that: The composite essential oil comprises a mixture of pure camphor essential oil, thyme essential oil, sweet orange essential oil and lavender essential oil.

6. The bamboo fiber blanket fabric according to claim 1, characterized in that: The preparation method of the chitosan modified silver powder comprises the following steps: Dispersing nano silver powder in water to form a silver powder dispersion; Add chitosan to the acetic acid aqueous solution and stir evenly to completely dissolve the chitosan to obtain a chitosan solution; Adding the silver powder dispersion into the chitosan solution, stirring evenly to obtain a mixed solution; Add glutaraldehyde to the mixed solution, stir evenly, let stand, add sodium hydroxide solution, soak, filter, wash, dry and grind to obtain chitosan modified silver powder.

7. The bamboo fiber blanket fabric according to claim 6, characterized in that: The mass fraction of silver powder in the silver powder dispersion is 1%-5%; the mass fraction of chitosan in the chitosan solution is 0.1%-0.5%; and the weight ratio of the silver powder dispersion to the chitosan solution in the mixed solution is 1:(8-10).

8. A method for preparing the bamboo fiber blanket fabric according to any one of claims 1 to 7, characterized in that: The following steps are involved: Preparation of modified fiber: firstly, adding the anti-mite extract into water to obtain an anti-mite extract aqueous solution, then adding the anti-mite extract aqueous solution, essential oil microcapsules, and chitosan modified silver powder into viscose spinning solution, stirring and mixing evenly, degassing, and then obtaining modified fiber according to a wet spinning process; Weaving: Blending bamboo fiber and modified fiber to weave fabric to obtain coarse fabric; Finishing: the rough fabric is subjected to spreading, singeing, pre-treatment, shaping, baking, pre-shrinking and curling to obtain the bamboo fiber blanket fabric.

9. The method for preparing a bamboo fiber blanket fabric according to claim 8, characterized in that: In the weaving step, the weight ratio of the bamboo fiber to the modified fiber is 1:(0.1-0.3).