Preparation process of warm ginger filament and warm ginger warm-keeping fabric

Abstract

The application discloses a preparation process of ginger warming filament, which comprises the following steps: S10, ginger active substance extract solution is prepared; S20, ginger active substance / nano-silicon dioxide sustained-release bodies are prepared; after the ginger active substance extract solution is mixed and diluted with anhydrous ethanol, nano-silicon dioxide is added, ultrasonic dispersion is carried out at 20-40 DEG C for at least 30 min, and then stirring adsorption is carried out at room temperature for 2-3 h, so that the ginger active substance is loaded on nano-silicon dioxide mesoporous; after vacuum drying at 40-60 DEG C to remove ethanol, grinding is carried out, and then the ginger active substance / nano-silicon dioxide sustained-release bodies are obtained; S30, ginger warming functional master batch is prepared; and S40, spinning is carried out. The ginger warming filament prepared by the preparation process has the advantages of improving the extraction rate of active substances in ginger, reducing the volatilization of volatile substances such as gingerol and gingerol, and further improving the warmth retention and moisture permeability of the ginger warming filament. The application further discloses a ginger warming fabric, which can improve the antibacterial and warming effects, and has the advantages of functional durability and wearing comfort.

Claims

1. A process for preparing warm ginger shreds, characterized in that, Includes the following steps: S10. Preparation of ginger active substance extract Fresh ginger with a 6-gingerol content of not less than 0.15% was pulverized and added to an extractant. The mixture was extracted and filtered at a temperature of 40–60°C. Nano-activated carbon was then added and the mixture was dried to obtain ginger extract. Add ginger extract to an appropriate amount of solvent and stir to dissolve at a temperature of 40-60℃ to obtain ginger active substance extract. S20. Preparation of ginger active substances / nano-silica sustained-release formulation The ginger active substance extract was dissolved in anhydrous ethanol, and then nano-silica was added to form a complex, with the nano-silica accounting for 70% to 80% of the complex. The complex was ultrasonically dispersed at 20 to 40°C for at least 30 minutes, and then stirred and adsorbed at room temperature for 2 to 3 hours to allow the ginger active substance to enter the mesopores of the nano-silica. After vacuum drying at 40 to 60°C to remove the ethanol, the mixture was ground to obtain a ginger active substance / nano-silica sustained-release mixture. S30. Preparation of Warming Ginger Functional Masterbatch 65-75 parts by weight of PET chips, 25-35 parts of the ginger active substance / nano silica slow-release agent, 3-5 parts of compatibilizer, 2-3 parts of antioxidant and 3-5 parts of dispersant are mixed and melt-blended and granulated to obtain warm ginger functional masterbatch. S40. Spinning The warm ginger functional masterbatch is dried and then melt-blended with fiber-forming polymer masterbatch in a preset ratio to form a spinning melt. The spinning melt is then subjected to fiber forming and post-treatment to obtain warm ginger filaments.

2. The preparation process of the warm ginger shreds according to claim 1, characterized in that, The specific process of step S10 is as follows: S11. Pretreatment: Select fresh ginger with a 6-gingerol content of not less than 0.15%, wash, peel, slice, vacuum dry at 60-80℃ until the moisture content is not higher than 5%, and pulverize to 80-120 mesh to obtain ginger powder; S12. Extraction of active substances from ginger: The ginger powder is mixed with the extractant, and ultrasonic extraction is performed within a temperature range of 40-60℃. The filtrate is collected and combined after each extraction. The extractant comprises the following raw materials in parts by weight: Isohexane: 6-10 parts Ethanol: 16-20 parts Citric acid: 6-10 parts Water: 15-20 parts; Nano-activated carbon was added to the filtrate, and the mixture was stirred and adsorbed for at least 30 minutes before drying to obtain ginger extract. S13. Pre-stabilization treatment of ginger active substances: The ginger extract and the composite stabilizer are added together to deionized water and stirred at 40-60°C to dissolve, thereby obtaining a ginger active substance extract; wherein, the composite stabilizer comprises the following raw materials in parts by weight: Sodium zincate: 1.2–1.8 parts Hydroxyethyl fatty alcohol: 0.8–1.2 parts, Alkyl ammonium polyoxyethylene glycol: 2.2–2.8 parts; The amount of the composite stabilizer added is 0.4 to 0.7% of the mass of ginger extract.

3. The preparation process of the warm ginger shreds according to claim 2, characterized in that, In step S12, the ginger powder is mixed with the extractant, and gradient ultrasonic extraction is performed at least three times with increasing temperature and power within a temperature range of 40-60°C. Specifically, the gradient ultrasonic extraction involves: First extraction: Extract for 4-6 hours at 40-45℃ and ultrasonic power of 300-500W; Second extraction: Extract for 2-3 hours at 45-50℃ and ultrasonic power of 500-800W; Third extraction: Extract for 1.5 to 2 hours at 50–60℃ and ultrasonic power of 800–1000W; In step S12, the weight ratio of added nano-activated carbon is 1%.

4. The preparation process of the warm ginger shreds according to claim 1, characterized in that, The specific steps of step S30 are as follows: the PET chips, ginger active material / nano silica slow-release agent, compatibilizer, antioxidant and dispersant are put into a mixer and stirred at 800-1200 r / min for 5-10 minutes, and then put into a twin-screw extruder and melt-blended and extruded at 180℃-250℃. After water cooling and pelletizing, the warm ginger functional masterbatch is obtained. The compatibilizer is maleic anhydride-grafted polyester or acrylate-maleic anhydride copolymer, and the dispersant is a low-molecular-weight wax.

5. The preparation process of the warm ginger shreds according to claim 1, characterized in that, Step S40 includes: S41. The warm ginger functional masterbatch is dried and then melt-blended with fiber-forming polymer masterbatch in a preset ratio to form a spinning melt, wherein the fiber-forming polymer masterbatch is one or more of polyester masterbatch, nylon masterbatch, and polypropylene masterbatch. S42. The spinning melt is metered, filtered, and spun into fine melt streams; S43. The molten stream is sequentially subjected to cooling and solidification, removal of volatile substances, and bundled oiling treatment, followed by network interlacing and multi-stage hot stretching and heat setting treatment to obtain the warm ginger filament; the cooling and forming adopts an annular side-blowing cooling device, and the multi-stage hot stretching is sequentially completed by three sets of hot rollers with increasing temperature, and the heat setting temperature is set at 130℃~160℃.

6. The preparation process of the warm ginger shreds according to claim 1, characterized in that, In step S20, the nano-silica has a particle size range of 15-200 nm, a specific surface area of ​​400-800 m² / g, and a pore size of 2-5 nm.

7. A warm ginger-infused fabric, characterized in that, It includes a surface layer (1), a bottom layer (3), and an intermediate connecting layer (2) connecting the surface layer (1) and the bottom layer (3) formed by weft knitting of the yarn according to the smallest knitting unit; the yarn includes cotton yarn, polyester fiber yarn, and warm ginger filament prepared by the preparation process of warm ginger filament according to any one of claims 1 to 6, wherein the surface layer (1) is woven from at least cotton yarn and / or polyester fiber yarn, the bottom layer (3) is woven from at least warm ginger filament, and the intermediate connecting layer (2) is woven from at least polyester fiber yarn and / or cotton yarn; The top layer (1) is composed of loops formed by upper needles, the bottom layer (3) is composed of loops formed by lower needles and loops formed by lower needles, and the intermediate connecting layer (2) is composed of loops formed by upper needles, loops formed by lower needles and lower needle floats; or, the top layer (1) is composed of loops formed by upper needles and upper needle floats, the bottom layer (33) is composed of loops formed by lower needles, and the intermediate connecting layer (2) is composed of loops formed by upper needles, upper needle floats, lower needle floats and loops formed by lower needles.

8. The warm ginger insulation fabric according to claim 7, characterized in that, The minimum knitting unit comprises 12 rows, each row formed by an upper needle plate with one needle track and a lower needle cylinder with two needle tracks. The needle arrangement of the upper needle plate is 101010, and the needle arrangement of the lower needle cylinder is 121212. The upper needle plate of the first row is for tucking, and the lower needle cylinder contains float thread and tucking thread in sequence. The upper needle plate of the second row is for floating thread, and the lower needle cylinder is for gathering loops and forming loops in sequence; The upper needle plate of the third row is a loop, and the lower needle cylinder contains float thread, float thread, and so on. The upper needle plate of the fourth row is for tucking, and the lower needle cylinder contains float thread and tucking thread in sequence. The upper needle plate of the fifth row is a floating thread, and the lower needle cylinder is successively formed into loops; The upper needle plate of the sixth row is a circle, and the lower needle cylinder consists of float thread and float thread in sequence. The upper needle plate of the 7th row is for tucking, and the lower needle cylinder is for tucking and floating thread in sequence; The upper needle plate of the 8th row is for floating thread, and the lower needle cylinder is for forming loops and gathering loops in sequence; The upper needle plate of the 9th row is circular, and the lower needle cylinder consists of float thread and float thread in sequence. The upper needle plate of the 10th row is for tucking, and the lower needle cylinder is for tucking and floating thread in sequence; The upper needle plate of the 11th row is a floating thread, and the lower needle cylinder is successively formed into loops and loops; The upper needle plate of the 12th row is a circle, and the lower needle cylinder contains float thread, float thread, and so on. The first, fourth, seventh, and tenth braids form the intermediate connecting layer (2), the second, fifth, eighth, and eleventh braids form the bottom layer (3), and the third, sixth, ninth, and twelfth braids form the top layer (1).

9. The warm ginger insulation fabric according to claim 7, characterized in that, The minimum knitting unit comprises 6 rows, each row formed by a two-needle track upper needle plate and a two-needle track lower needle cylinder. The needle arrangement of the upper needle plate is 2121, and the needle arrangement of the lower needle cylinder is 1212, wherein: The upper needle plate of the first row consists of floating thread and loops, while the lower needle cylinder consists of floating thread and loops. The upper needle plate of the second row consists of floating thread, floating thread, and the lower needle cylinder consists of loops, loops; The upper needle plate of the third row consists of floating thread and loops, while the lower needle cylinder consists of floating thread and floating thread. The upper needle plate of the fourth row consists of loops and floats, while the lower needle cylinder consists of tucks and floats. The upper needle plate of the fifth row consists of floating thread, floating thread, and the lower needle cylinder consists of loops, loops; The upper needle plate of the 6th row consists of loops, floats, and the lower needle cylinder consists of floats and floats. The first and fourth braids form the intermediate connecting layer (2), the second and fifth braids form the bottom layer (3), and the third and sixth braids form the top layer (1).

10. The warm ginger insulation fabric according to any one of claims 7 to 9, characterized in that, The polyester fiber yarn is T800 yarn or polyester yarn; the specification of the warm ginger filament is 150D / 144F, the specification of the cotton yarn is 40S, the specification of the polyester yarn is 75D / 24F polyester, and the specification of the T800 yarn is 25D / 48F.

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