KR101039217B1 - Enhanced Health Functional Patterned Fabrics Printed with Tannin and Process for Preparation thereof - Google Patents

Abstract

The present invention relates to a functional pattern cloth and a method of manufacturing the same by coating the tannins extracted from persimmon leaves evenly on the fibers and the tannins and the constituent fibers are bound to each other. In the present invention is composed of a main material for imparting a pattern to the fabric with a tannin solution dissolved persimmon leaf in a solvent as a printing solution, the tannin printing pattern cloth that maximizes the function of the tannin present on the surface and the inside of the patterned area and its It provides a manufacturing method. The functional reinforced tannin pattern cloth of the present invention is capable of various patterns with antimicrobial, deodorant, biocompatibility, and is an excellent invention to increase the fastness, which is a disadvantage of natural dyeing, and can be used to manufacture clothes and ornaments having the functionality preferred by modern people. It is a pattern cloth.

Tannins, pattern cloth, natural dyeing, functional

Description

Patterned fabric reinforced with tannins and its manufacturing method {Enhanced Health Functional Patterned Fabrics Printed with Tannin and Process for Preparation Technical}

Natural dyes mean dyes produced biochemically by plants, animals, and microorganisms, and are widely used as colorants for coatings, cosmetics, foods, and pharmaceuticals. Among the above-mentioned natural dyes, vegetable dyes can be divided into monochromatic dyes in which only one type of dye is used and monochromatic dyes in which various colors are produced by combining various metal salts with one type of dye. Monochromatic dyes are dyes obtained by extracting soluble pigment components from dyes such as gardenia and turmeric, and dipping the fibers in the salt solution, and dyeing by reducing the insoluble pigments with alkali, such as lamb, and oxidizing and coloring them in the air. There are basic dyes that cause precipitation by mixing with other dyes, such as vat salt dye, yellow wall, sulfur lead, etc., which return to the insoluble dyes and improve the fastness. Polychromatic dyes include casamine, root, turmeric, and the like. There are two methods for dyeing these dyes: a mordant method in which a metal salt is immobilized on a fiber and a dye is developed, and a post-treatment method in which a dye is dyed on a fiber and a color is developed by a metal salt. The natural dyes that we have traditionally used are not harmful to the human body, have high safety to the skin, and are widely used as dyeing materials because they can make people very comfortable and develop various products by various and natural colors. have.

In general, tannins are largely classified in two ways. First, hydrolysable tannins, which are hydrolyzed to produce gallic acid or ergacetic acid, and condensed tannins, in which red or brown precipitates form Provabene by polymerizing several molecules. Can be divided into In addition, tannins may be classified into pyrogallo-based tannins obtained by alkali dissolution and catechol-based tannins classified into catechol-based and derivatives thereof. This is a testament to the fact that tannins do not mean a single compound but can be classified as a complex name for various constructs (Richard W. Hemingway and Joseph J. Karchesy, Chemistry and significance of condensed Tannins, Plenum Press, 1989). Tannins have been widely used in various industrial fields for a long time, and have recently been shown to have a medical effect along with leather and wood additives, deodorants, preservatives and dyes. In general, tannins are very widely distributed in the plant kingdom and are found in unripe fruits and seeds, and decrease as the fruit matures. Representatives of plants that have a lot of tannins in nature are diverse, such as gallastia, gluttony, smark, chestnut, oak, balonia, mangrove, oak bark, mimosa, acorn, red wine, among them persimmon and persimmon leaf. Tannin is the most familiar and easy to use material.

In recent years, increasing interest in health is increasing interest in natural dyeing, and natural dyeing products are also urgently needed to develop biocompatible and patterned fabrics that can satisfy various palatability of modern people.

The present invention relates to a pattern cloth and a method for producing the biocompatibility and various patterns by extracting tannins from persimmon or persimmon leaves. Natural dyeing is a traditional cultural technique of breathing with nature, but most of them have been maintained by domestic craft industry and are not widely spread to the general public. However, in recent years, public interest in natural dyeing products has increased, and high interest in health and well-being has resulted in the demand for technology development for standardization, automation, and mass production of natural dyeing technologies. Natural dyeing, unlike chemical dyeing, uses natural plants and minerals as raw materials, so it does not emit environmental pollutants. Dyeing is divided into natural dyes using natural dyes and artificial dyes using synthetic dyes. Synthetic dyes have been mostly used to obtain various colors and excellent dyeing results. However, it has been found that the use of synthetic dyes adversely affects the human body such as the release of various environmental pollutants and atopic dermatitis in the case of textile products using synthetic dyes. Natural dyestuffs have no limitations on minerals or animals, but are mainly used for plant shells, stems, fruits and roots.In order to be widely used as dyes, it is easy to obtain raw materials, easy to extract dyes, and simple dyeing process. It is good to have good dyeing and fastness of chlorine.

Technical status related to natural dyes and natural dyes, manufacturing method of cockscomb natural dyes and natural fiber dyeing method using cockscomb natural dyes (Korean patent application 10-2003-0369939), manufacturing method of ginseng natural dyes and dyeing natural fiber using ginseng natural dyes Method (Korean patent application 10-2003-063462), ocher dye production method and natural fiber dyeing method using ocher dye (Korean patent registration No. 0321991), natural mugwort dyeing method and natural fiber dyeing method using natural mugwort dye (Korean patent application 10-2003-082790), natural dyeing method using a ship (Korean Patent Registration No. 0608174), such as natural dyeing technology using a natural or vegetable material as a dye has been reported, but various patterns by extracting the dye from the vegetable raw material This possible natural dyeing technique has not been reported to date.

The current state of technology development using tannins is as follows. Anti-inflammatory analgesic composition comprising tannin-containing thawed skin extract (Korean patent application 10-2007-47976), separation method of tannins from persimmon (Korean Patent Registration No. 0758236), oxidative hair dye composition containing persimmon (leaf) tannins ( Republic of Korea Patent Application 10-2007-07830), a composition comprising Lactobacillus plantarum strains in combination with tannins and Lactobacillus plantarum strains (Korean Patent Application 10-2005-701890), functional cosmetics containing tannins as an active ingredient ( Korean Patent Registration No. 78134), adhesive composition using tannins and manufacturing method of adhesives using them (Korean Patent Application No. 10-2000-22031) Tannins are widely used as pharmaceuticals and cosmetics materials, but natural dyeings that are excellent in human compatibility and enhance dyeing There is no technology used as a material until now.

Tannin is an aromatic compound having a large number of phenolic hydroxyl groups, and is mostly in the form of a mixture of several substances rather than being separated into a single phase as a single substance. Such persimmon leaf tannin can be obtained in a white or light brown amorphous powder or a transparent or light brown liquid depending on the extraction method or purification method. When you eat foods such as persimmons, green tea, and acorns, the astringent taste is tannin and is widely distributed in nature.

Tannin is a generic term for high-molecular polyphenolic ingredients with astringent and astringent taste as a vegetable component. Tannin is present in a mixture of sugars, proteins, phenolic substances, lignin, and inorganic salts in plants. Tannins extracted from persimmon leaves are phonolic condensed tannins with many hydroxyl groups and have many ionized terminal residues. These ionic moieties are known to be capable of ionic bonds and hydrogen bonds with ionized moieties of fibrin to enhance color fastness to enhance color fastness. Tannins vary widely in plant varieties and are biosynthesized from leaves, migrated to fruit, and accumulated in tannin cells. Tannins of persimmon and persimmon leaves are heat-stable and have high hydrophilic phenolic hydroxyl groups, which are easily gelled at high concentrations and form bonds or complexes such as hydrogen bonds and non-covalent bonds as polymers. It has a variety of reactivity. Persimmon leaf tannin is a typical condensed tannin mixture and consists of 1: 1: 2: 2 catechin, catechin-3-gallate, gallocatechin, and gallocatechin-3-gallate, respectively. Other components contain large amounts of substances with various structures and terminal residues belonging to the proanthocyanidine group (Stripe, F. and Corie, ED: The regulation of rat liver xanthine oxidase. J. Biol. Chem., 244, 3855) (1969). Since tannin of persimmon leaves is heat stable, hydrothermal extraction is common. Persimmon leaf tannin can be separated by drying a small amount of distilled water in dried pulverized persimmon leaves, heated at 120 ° C. for 1 hour, concentrated under reduced pressure, and powdered to obtain Okonogi and the like (Okonogi, T., Hattor, Z., Ogiso, A. and Mitsui, S: Detoxification by persimmon tannin of snake venoms and bacterial toxin.Toxicon, 17, 524 (1970)). Persimmon leaf tannin has recently been reported a variety of functionalities. Medically, there are blood pressure lowering, antimutation, antioxidant, and free radical free radical removal. In addition, some functions as deodorant, leather, wood, fiber additives, and preservatives are known. Traditionally, persimmon leaf tannins have been used for dyeing fibers and are known to develop unique colors either alone or as a mordant (Lee Jong-nam, Natural Dye, p. 192, 382, Hyunamsa, 2004).

The present invention is to develop a pattern cloth and a method of manufacturing a pattern that is excellent in biocompatibility and various patterns using tannin extracted from persimmon or persimmon leaves.

Natural dyeing is faint in color and harmless to humans, but it has the disadvantage of not dyeing several colors on a single cloth. In the case of chemical dyeing, it is possible not only to dye yarns, but also to produce various colors using printing techniques such as textiles, and in fact, commercial production has been performed. However, natural dyeing can be made of multi-color dyeing fabrics after weaving after weaving into various colors in the yarn stage, but it is not easy to dye various colors commercially when weaving fabrics that are already monochromatic or bleached. to be. This is because in the case of natural dyeing, in most cases, the dye is dyed in a salt solution having a polychromatic dye and then dyed only in the color of the dye reacting to a specific mordant. Of course, it can be partially colored with different mordant or dyed with different dyes, but in this case, the color is difficult to show the desired pattern, and when partially dyed with different dyes, the dyes act as mordants and spread the color. Of course, unwanted colors may develop. As such, there is a disadvantage that natural dyeing is monotonized by dyeing with only one color. Currently, in order to form a pattern in natural dyeing, one or more of the methods of folding, twisting, and rolling the fabric are used to create a pattern dye using a discoloration difference depending on the degree of exposure of the fabric to air. As a result, they cannot express various patterns or colors, which does not satisfy consumer preferences.

Therefore, in the present invention, while maintaining the general advantages of natural dyeing to diversify the pattern of the product, to achieve a functional reinforcement pattern cloth that can express a variety of colors and its manufacturing method.

In the present invention, to solve the problems of the general natural dyeing mentioned above, it is possible to complete a pattern cloth and a method of manufacturing a pattern that can be a variety of patterns with tannins extracted from persimmon or persimmon leaves, and can express a variety of colors .

Tannin used in the present invention was used to extract from persimmon or persimmon leaves. Persimmons were harvested after immature persimmons began to bear fruit, and persimmon leaves were collected when the color of persimmon leaves was the most blue in late summer. Through the step of extracting and concentrating the tannins from the collected persimmon or persimmon leaves using an organic solvent or an organic acid, the manufacturing step of the printing pattern cloth and the stabilization treatment process, to complete the pattern cloth reinforced with the functionality of tannin and a method of manufacturing the same.

Various patterns are possible using the present invention tannins, and the health functional reinforced pattern cloth and its manufacturing method can improve the fastness, which is a disadvantage of natural dyeing, satisfy various preferences of consumers, biocompatibility, antimicrobial and deodorant This is an excellent new medical material. Pattern cloth that can express various patterns with tannins is an excellent invention that is highly applicable to various materials because it can be used as a raw material of clothing or various household goods.

When using the present invention tannins will be described in detail the functional fabric and the method for manufacturing the same as follows.

In the present invention, a pattern cloth reinforced with tannins and a method of manufacturing the same, persimmon leaf tannin was stable to heat and obtained by a hydrothermal extraction method, and persimmon leaf tannin was separated by Okonigi method. Okonigi method was used to put a small amount of distilled water in 100g of dried persimmon leaf pulverized and heated at 120 ℃ for 1 hour and extracted with 150mL acetone to make a concentrated solution. 100 ml of methanol was added to the persimmon leaf concentrate, filtered, and 80 ml of diethyl ether was added to the filtrate. The pH was adjusted to 4.0 using hydrochloric acid, and dialyzed again using a cellulose membrane, followed by freeze-drying to obtain powdery tannin. Tannin extract can be used persimmon or persimmon leaf selected from ethanol, acetone, butanol, ethyl acetate, at least one selected from the organic solvent of 50% concentration and selected from vacuum concentration, reduced pressure concentration, atmospheric concentration It was concentrated using.

The affinity treatment of the fibers to be dyed is immersed in a solution of caustic soda soaked completely and wetted to remove residual caustic soda solution, aged at room temperature for 1 day, treated with acetic acid solution, followed by dehydration for affinity treatment.

The printing cloth fabric is closely contacted with a screen plate planted on the affinity treated cotton cloth and coated with a tannin concentrate to remove excess tannin solution and form a pattern to condition at room temperature. The conditioned tannin printing cloth is placed in a dryer and dried. The partially dried fabric is uniformly covered with tannins on the patterned portion and the raw fabric portion forms a printed patterned fabric composed of constituent fibers. It is put in a hot air dryer and heat stabilized to prepare a tannin printing cloth.

The stabilization process is completed by stabilizing the tannin pattern area by collecting the dried printing cloth fabric, immersed in an aqueous solution of caustic soda, and then chemically treated with water and rinsed until neutral with hot water and cold water.

Claims (2)

Process of preparing tannin powder and tannin extract from persimmon or persimmon leaf, affinity treatment of the fiber to be dyed, and forming a tannin printing cloth by adhering a patterned screen plate to a cotton cloth treated with affinity, drying printing A method for producing a tannin pattern cloth, wherein the pattern cloth is collected and immersed in an aqueous solution of caustic soda to stabilize the tannin pattern cloth. Tannin pattern cloth prepared according to the method of claim 1.