TWI683043B - Silk collagen fiber, fabric and producing method thereof - Google Patents

Abstract

Present invention is related to a silk collagen fiber, fabric and producing method thereof. The producing method of the silk collagen fiber comprises steps of: poaching silk fiber with alkaline solution, silk collagen can be extracted from silk gelatin and sericin waste as well as the waste materials within silk, silk collagen extract is centrifuged and heated to remove water to obtain a collagen bulk,, grinding the silk collagen bulk into silk collagen powder, adding a water-based heat resistance agent solution with the silk collagen powder to form a suspension solution, adding a dispersing agent and a modified agent into the suspension solution to form a collagen solution, adding a polymer precursor into the collagen solution through a in-situ polymerization and a silk collagen contained polymer will be formed, chopping the silk collagen contained polymer into pieces, and spinning the pieces into fiber to form the silk collagen fiber of the present invention. The present invention successfully obtains the silk collagen fiber by adding the heat resistance agent. The heat resistance agent will form a heat resistance layer outside the silk collagen powder to increase heat resistance ability to the silk collagen and produced filament and staple fibers containing silk collagen successfully.

Description

Silk collagen fiber, fabric and manufacturing method thereof

An artificial long fiber, especially a silk collagen fiber containing silk collagen with high moisture absorption and water retention, and having cosmetic properties.

At present, fiber fabrics require high functionality, such as different functions of moisture absorption, water retention, heat dissipation or heat absorption. Among them, collagen is a material with high moisture absorption and can effectively retain water for a long time, and collagen is one of the components of the human body It is highly skin-friendly, so if it can be used for skin or human body fibers or fabrics, it is a high-quality source of raw materials. However, collagen cannot withstand high temperature. The high temperature generated in the general fiber manufacturing process may cause it to lose its activity, and the effect of moisture absorption and water retention will be greatly reduced or lost. This problem needs to be solved.

In order to solve the aforementioned problem that collagen cannot withstand high temperature, it is more difficult to apply to the general fiber manufacturing process. The present invention provides a silk collagen fiber and its fabric and manufacturing method to overcome the shortcomings of the existing technology. The manufacturing method steps of the silk collagen fiber include: alkali boiled silk, silk sericin waste, inferior silk quality or silk scraps can be extracted into silk collagen extract; centrifugally filter the silk collagen extract and Heat the water to remove the water, get the silk collagen block, and grind it into silk collagen powder; add the silk collagen powder to an aqueous heat-resistant auxiliary solution to form a suspension liquid, and then add the dispersant and modifier to form a Collagen solution; wherein: the aqueous heat-resistant auxiliary solution contains an aqueous heat-resistant auxiliary agent and a solvent in a solution state, the aqueous heat-resistant auxiliary agent coats the suspended silk collagen powder; a polymer precursor After mixing with the collagen solution, through in-situ polymerization reaction, a polymer containing collagen is formed and stretched into a plastic masterbatch containing collagen; and the plastic masterbatch containing collagen is drawn into silk collagen fiber.

Preferably, the polymer is nylon 6, polyethylene terephthalate or regenerated cellulose; the polymer precursor is caprolactam, polydimethyl terephthalate or cellulose; the The high molecular nylon 6 is produced by ring-opening polymerization of caprolactam and water; and the polyethylene terephthalate and ethylene glycol are subjected to condensation polymerization to obtain polydimethyl terephthalate.

Preferably, when the polymer is nylon 6, the water-based heat-resistant auxiliary agent is alcohol.

Preferably, the silk collagen fibers are long fibers or short fibers.

Preferably, the source of the cellulose is wood or bamboo.

Preferably, after adding an initiator and a catalyst to produce an in-situ polymerization reaction, a cooling paste and/or a thermal paste is further added. The cooling paste is a suspension of calcium powder, magnesium powder or calcium-magnesium composite powder Liquid, the thermal paste is a suspension of silica, alumina or silica/alumina composite powder

The present invention also provides silk collagen fibers and fabrics produced by the above-mentioned process.

It can be known from the above description that the present invention has the following advantages:

1. The present invention introduces a heat-resistant additive to coat the surface of silk collagen to form a heat-resistant layer (Core shell structure) to increase the heat-resistant properties of silk collagen and improve its defect of losing activity due to high temperature. Long and short silk fibers.

2. The process provided by the present invention successfully mixes silk collagen with polymers to form fibers. Its fiber products have the advantages of superior moisture absorption, moisture retention, beauty, heat dissipation and ultraviolet resistance, and are very suitable for skin-friendly On textiles, furthermore, through the addition of functional powder, the invention can make the fiber products have automatic temperature adjustment, breathability, strong moisture absorption and moisturization, more anti-mite and antibacterial, and have health care for long-term use.

3. The source of collagen used in the present invention is silk, and silk protein is animal protein. It is the best skin-friendly among all fiber materials. Not only is it soft to the touch, but also light and breathable, it can hardly feel its existence. It is fluffy and natural. Raised, the fiber and its products are very durable and comfortable.

A preferred embodiment of the manufacturing method of the present invention includes the following steps: Step 1: Alkali boiled silk, extracted into silk collagen extract, the silk is discarded from sericin, inferior silk or silk waste can be extracted Become a silk collagen extract; Step 2: Centrifugally filter the silk collagen extract and heat water to remove water to obtain a silk collagen block, which is ball milled into silk collagen powder; Step 3: The silk collagen protein The powder is added to an aqueous heat-resistant auxiliary solution to form a suspension liquid, and then a dispersant and a modifier are added to form a collagen solution; the aqueous heat-resistant auxiliary solution contains an aqueous heat-resistant auxiliary and a solvent that can make it into a solution state , The solvent is preferably water, and the aqueous heat-resistant auxiliary agent will coat the suspended silk collagen powder; Step 4: a polymer precursor is mixed with the collagen solution and then formed by in-situ polymerization to form The polymer solution containing collagen is dehydrated and solidified and stretched into a plastic masterbatch containing collagen; and Step 5: Dilute the plastic masterbatch containing collagen to the required solid content. The fiber is the silk collagen fiber of the present invention.

Among them, the alkaline water used in the present invention is an alkaline solution, preferably an alkaline solution prepared using components such as sodium carbonate, potassium carbonate, or sodium hydroxide. The polymer described in the aforementioned step 5 is preferably nylon 6 (Naylon 6), polyethylene terephthalate (PET), cellulose or regenerated cellulose, and the precursor of nylon 6 is caprolactam (CPL), the precursor of polyethylene terephthalate is polydimethyl terephthalate, the precursor of regenerated cellulose is natural fiber, and the source can be wood or bamboo; and the polymer nylon 6 series It is produced by ring-opening polymerization of caprolactam (CPL) and water, and polyethylene terephthalate and ethylene glycol are condensed and polymerized to obtain polydimethyl terephthalate.

The water-based heat-resistant auxiliary is mainly used when the polymer is nylon 6, cellulose or regenerated cellulose, and if the polymer is polyethylene terephthalate, alcohol-based heat-resistant auxiliary is preferably used . The water-based heat-resistant auxiliary agent is coated on the outside of the silk collagen powder, which can increase the heat resistance of the silk collagen powder and avoid the decrease or loss of silk collagen activity caused by high temperature in the subsequent manufacturing process.

In the step 5 of the present invention, ore powder suspension can be further added for mixing, preferably nanometer or submicron level functional powder, such as suspension of calcium powder, magnesium powder or calcium-magnesium composite powder, As the addition of the cooling paste, silica, alumina or silica/alumina composite powder suspension can also be added as the thermal paste to achieve the effect of cooling and/or thermal sensation of the fiber. According to a preferred embodiment of the present invention, a fiber cross-sectional micrograph of the silk collagen fiber added with a cooling functional powder is shown in FIG. 1. Further, the silk collagen fiber of the present invention preferably contains 0.25 wt% of silk collagen powder. Please refer to FIG. 2, which is an optical micrograph of the silk collagen plastic masterbatch added with a cool-featured functional powder according to a preferred embodiment of the present invention, and the cool-featured and heat-featured functional powder can be seen from FIG. 2 Distributed in plastic masterbatch. Further, the present invention preferably contains 1.2 wt% of functional ore powder.

The in-situ polymerization method used in the present invention is mainly to use a dispersant to effectively add nano-level or sub-micron-level functional powder to the precursor solution and disperse it uniformly. After the precursor is polymerized, the functional material can be uniformly dispersed in the polymer to form a composite material.

The silk collagen fiber or the better cool silk collagen fiber obtained in the previous step 6 can be made into a processed yarn by stretch false twisting method, and then made into an elastic knitted fabric using a circular knitting machine, which is then refined and bleached , Predetermined, dip-dyeing and shaping processing into fabric products, can be used as a multi-functional outdoor, leisure and underwear products and bedding cloth, or by virtue of the characteristics of high moisture absorption and water retention, the present invention can also be applied to mask skin material Or cosmetic cotton is not limited here.

Please refer to Table 1 below, which is the physical properties table of the processed silk produced by using the cold-sensing silk collagen fiber obtained by the aforementioned process of the present invention by extending false twisting. Test items Measured value CV% Danny D 74.3 0.79 strength g/D 4.61 3.58 Elongation % 32.1 4.01 Elongation % 63.67 7.12 Elasticity % 57.51 6.32 Oil content % 1.06 7.66

Please refer to Table 2 below, which is made of elastic knitted fabrics of 28G and 32G by circular knitting machine using the above-mentioned processed yarns. The measurement of water absorption and moisturizing properties. From the measurement results, it can be seen that the present invention does have excellent water absorption Moisturizing function. (The so-called 28G means 28 stitches in one inch, and 32G means 32 stitches in one inch.) Contacts Test Specification 28 G 32 G Cloth weight - 225 g/yd 315 g/yd Width - 60 in 60 in thickness - 0.455 mm 0.585 mm Cool-sensing collagen yarn ratio - 42.5% 84.0% Water absorption area FTTS-FA-004 Level 4 (1174 mm ² ) Level 4 (1301 mm ² ) Water absorption height vertical Level 3 (97 mm) vertical Level 3 (95 mm) Weft direction Level 4 (100 mm) Weft direction Level 3 (99 mm) 40 minutes residual moisture content Level 2 (38.50%) Level 2 (41.8%) Q-max FTTS-FA-019 0.184 W/cm ² 0.200 W/cm ² UV resistance AATCC 183 50+ (229) 50+ (109) Thermal image temperature difference FTTS-FA-010 2.2 ℃ 0.8 ℃ Friction stimulation coefficient - 7.4% 7.4%

It can be seen from the above test results that the present invention has excellent physical properties, more powerful and lasting moisturizing function, can absorb 50 times the moisture, and make the skin rich in moisturizing properties; if it is applied to summer clothing and underwear, it can quickly distribute the sweat discharged by the human body With heat, it feels extremely cool and comfortable. At 25 ^o C and 50% relative humidity, the silk collagen was tested after three days and its moisturizing power was still around 95%.

The fiber product of the present invention has excellent compatibility with human skin, coupled with a smooth surface, the friction stimulation coefficient to the human body is only 7.4%, which is the lowest among other types of fibers, and the collagen of the present invention has a low molecular weight and can be worn immediately It penetrates the stratum corneum of the skin and is quickly absorbed by cells. The inner layer of silk collagen contains fibroin (Fibroin), accounting for about 75%; the outer layer contains sericin (Sericin) accounting for about 25%, while fibroin has 35% silk. The volume gap, the sericin coated on the outer layer contains hydrophilic side chain amino groups, so that the silk collagen has good moisture absorption and anti-UV function that can absorb and reflect light. Silk collagen has the ability to absorb UV light, the average anti-UVB ability is 90%, and the anti-UVA is more than 50%. Silk collagen is rich in 18 kinds of amino acids, which can promote metabolism and stabilize the spirit, especially Cysteine can prevent the formation of melanin and capture the formation of free radicals. Proline (Proline) is collagen The main raw material for synthesis; histidine (Histidine) can avoid UV damage.

The above are only preferred embodiments of the present invention and are not intended to limit the scope of the claimed rights of the present invention. Any other equivalent changes or modifications made without departing from the spirit of the present invention should be included in the present invention Within the scope of patent application.

1 is a microscopic view of a fiber cross section of a cool-sensing silk collagen fiber added with a cool-sensing functional powder according to a preferred embodiment of the present invention. FIG. 2 is an optical microscope image of a cool-sensing silk collagen fiber added with a cool-sensing functional powder according to a preferred embodiment of the present invention.

Claims (8)

A method for manufacturing silk collagen fiber, the steps of which include: boiling silk in alkali water, extracting silk collagen to obtain silk collagen extract, the silk is discarded by sericin, inferior silk or silk waste; centrifugally filtering the silk Collagen extract and heated to remove water to obtain silk collagen block, and grind into silk collagen powder; add the silk collagen powder to an aqueous heat-resistant auxiliary solution to form a suspension liquid, then add dispersant and The modifier forms a collagen solution; wherein: the aqueous heat-resistant auxiliary solution contains an aqueous heat-resistant auxiliary and a solvent to form a solution, the aqueous heat-resistant auxiliary is an alcohol to coat the suspended silk collagen powder ; Mixing a polymer precursor with the collagen solution and then in situ polymerization to form a polymer containing collagen, and stretch to cut into a plastic masterbatch containing collagen; and adjust the plastic containing collagen The solid content of the masterbatch is more than 0.25wt% and the silk is silk collagen fiber. For example, the method for manufacturing silk collagen fibers according to item 1 of the patent application, wherein: the polymer is nylon 6, polyethylene terephthalate, cellulose or regenerated cellulose; the polymer precursor is hex Internal amide, polydimethyl terephthalate or natural fiber; the polymer nylon 6 is made by ring-opening polymerization of caprolactam and water; and the polyethylene terephthalate and ethylene glycol are condensed Polymerization reaction to obtain polydimethyl terephthalate. For example, the method for manufacturing silk collagen fiber according to item 1 of the patent application, the silk collagen fiber is a long fiber or a short fiber. For example, in the method for manufacturing silk collagen fiber in the second patent application, the source of the cellulose is wood or bamboo. For example, in the method for manufacturing silk collagen fibers according to item 1 of the patent application scope, an initiator and a catalyst are added to produce an in-situ polymerization reaction, and a cooling paste and/or a thermal paste are further added. The cooling paste is A suspension of calcium powder, magnesium powder or calcium-magnesium composite powder, the thermal paste is a suspension of silica, alumina or silica/alumina composite powder. A silk collagen fiber, which is made by a method for manufacturing silk collagen fiber according to items 1 to 5 of the patent application. A silk collagen fiber woven fabric comprising several silk collagen fibers made by a method for manufacturing silk collagen fibers according to items 1 to 5 of the patent application. The silk collagen fiber woven fabric as described in item 7 of the patent application scope is an elastic breathable woven fabric made by several pieces of the silk collagen fiber by extension false twisting and then woven by a circular knitting machine.

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