CN105113301B - A kind of natural animal-plant source color fixing agent and preparation method thereof and color fixing process - Google Patents

Abstract

The invention provides a novel natural animal and plant source color fixing agent and its preparation method and color fixing process. The specific preparation method is: (1) in parts by weight, 1 part of chitosan is added to 35-40 parts of hydrochloric acid solution , stirring at room temperature until chitosan is completely dissolved, then adding 100-150 parts of dehydrated alcohol, stirring, filtering, and drying the precipitate to obtain chitosan quaternary ammonium salt powder; (2) by weight, 1 part of Wash the fresh pigskin to remove the hair and dirt on the surface, add 25-30 parts of deionized water after dicing and mincing, heat and stir, add 0.05-0.1 part of biodegradable enzyme, microwave irradiation, deactivate the enzyme and centrifuge, dry the precipitate Obtain pigskin glue; (3) in parts by weight, add 80-90 parts respectively to the aloe vera gel of 25-35 parts of chitosan quaternary ammonium salt powder, 15-30 parts and 20-25 parts of pigskin glue In distilled water, stir until completely dissolved, add citric acid, filter and purify, and concentrate to obtain natural animal and plant source color fixing agent, which can achieve the purpose of natural green color fixing for natural plant dyes.

Description

A kind of natural animal and plant source color fixing agent and its preparation method and color fixing process

Technical field:

The invention belongs to the technical field of textile materials, and in particular relates to a color-fixing agent of natural animal and plant origin, a preparation method and a color-fixing process thereof.

Background technique:

my country is the first country to use natural dyes for dyeing. The four famous brocades, blue calico, batik, tie-dye and other national intangible cultural heritages are all dyed with the help of natural plants. Natural plant dyeing is the dyeing of plants with pigments obtained from naturally growing plants. Compared with artificial synthetic dyes, natural plant dyes have the characteristics of non-toxic, harmless and non-polluting dyeing, and have good biodegradability and environmental compatibility, and the residual filter residue can also be used as fertilizer after treatment. In addition, many plants used to extract dyes are Chinese herbal medicines, which have anti-inflammatory and bactericidal effects, and can endow fabrics with various health benefits such as antibacterial, insect-proof, and skin allergies.

However, natural dyeing is generally direct dyeing or mordant dyeing. Mordant dyeing generally uses traditional mordants containing heavy metal ions to improve color fastness, which is not good for the environment. The dyeing process of direct dyeing takes a long time and the utilization rate of dyestuffs is low. It is difficult to meet people's requirements for color, and due to immature dyeing process and other reasons, the color fastness of dyeing is low, which cannot meet people's use and consumption requirements. Adding chemically synthesized color-fixing agents in the direct dyeing process can increase the dyeing rate of natural vegetable dyes, but these color-fixing agents may remain or decompose substances harmful to the human body and the environment during synthesis and application engineering, making natural Plant dyes lose their naturalness, so the improvement of dyeing and fixing process of natural plant dyes is the focus of the development of natural plant dyes.

Chinese patent CN 101245563B (disclosure date 2008.8.20) discloses an environmentally friendly acid color fixing agent and its preparation method. It is mixed with isopropanol, acrylic acid and sodium persulfate in deionized water, and treated after heating to obtain acrylic acid color fixing agent, and then mix acrylic acid color fixing agent with penetrating agent, complexing agent, organic solvent, sodium hydroxide and water to obtain a high-efficiency, environmentally friendly and cost-effective color fixing agent. The raw material of the color fixing agent is environmentally friendly and has no harmful substances , Each component can cooperate with each other, so that the effect of color fastness is better. Chinese patent CN 102704289B (disclosure date 2012.10.3) discloses a method for fixing the color of natural plant indigo dyes for batik, in which the fiber products dyed with natural plant indigo and dried are immersed in an alkaline solution of hydrogen peroxide and detergent. Boil and oxidize and defloat, then soak in a solution of compound color-fixing agent composed of animal glue and polyquaternium, wash and dry to obtain plant fiber products, which retain the indigo fragrance of fabrics and bright colors. Friction is not easy to fade, no formaldehyde, green and environmental protection.

It can be seen from the above prior art that the current environmentally friendly color fixing agents are chemically synthesized or partially chemically synthesized, and do not contain harmful substances such as formaldehyde. Therefore, it is necessary to develop a natural animal and plant source color fixing agent.

Invention content:

The technical problem to be solved in the present invention is to provide a natural animal and plant source color fixing agent and its preparation method and color fixing process, using chitosan derivatives, plant jelly aloe gel and animal glue pigskin glue as main raw materials , the obtained natural animal and botanical garden color fixing agent can improve the dyeing performance of natural plant dyes from many aspects, and achieve the purpose of green color fixing.

In order to solve the problems of the technologies described above, the technical solution of the present invention is:

A natural animal and plant source color fixing agent is characterized in that the natural animal and plant source color fixing agent mainly includes chitosan derivatives, plant jelly extracts, animal glue and auxiliary agents.

Preferably, the chitosan derivative is chitosan quaternary ammonium salt, the plant gelatinous extract is aloe vera gel, and the animal glue is pig skin glue.

The present invention also provides a preparation method of natural animal and plant source color fixing agent, which is characterized in that: comprising the following steps:

(1) In parts by weight, add 1 part of chitosan to 35-40 parts of hydrochloric acid solution, stir at room temperature until chitosan is completely dissolved, then add 100-150 parts of absolute ethanol, stir, filter, and precipitate Dry to obtain chitosan quaternary ammonium salt powder;

(2) In parts by weight, wash 1 part of fresh pigskin to remove the hair and dirt on the surface, dice and mince it, add 25-30 parts of deionized water, heat and stir, and add 0.05-0.1 part of biodegradable pigskin Enzyme, microwave irradiation, enzyme inactivation centrifugation, drying and precipitation to obtain pigskin glue;

(3) by weight, the chitosan quaternary ammonium salt powder prepared by the step (1) of 25-35 parts, the aloe gel of 15-30 parts and the pigskin prepared by the step (2) of 20-25 parts Add 80-90 parts of the glue to distilled water, stir until completely dissolved, add citric acid, filter and purify, and concentrate to obtain a natural animal and plant source color fixing agent.

As the preference of the above technical solution, in the step (1), the chitosan is low molecular weight chitosan.

As a preference of the above technical solution, in the step (1), the concentration of the hydrochloric acid solution is 0.1-0.5 mol/L.

As a preference of the above technical solution, in the step (2), the heating and stirring temperature is 50-60°C.

As a preference of the above technical solution, in the step (2), the microwave power is 1-3KW/m ² , and the microwave time is 60-90min.

As a preference of the above technical solution, in the step (3), the solid content of the natural animal and plant source color fixing agent is 65-70%.

As a preference of the above technical solution, in the step (3), the pH value of the natural animal and plant source color fixing agent is 5.5-6.5.

The present invention also provides a color fixing process of a natural animal and plant source color fixing agent, which is characterized in that: comprising the following steps:

Immerse the fabric dyed with natural vegetable dyes into the natural animal and plant source color fixing agent, the bath ratio is 1:25, soak at 60°C for 25-30min, take it out, dehydrate, pre-dry at 110°C for 2min, and then Bake at 140° C. for 2 minutes, and take out to obtain the finished textile.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The penetrability of chitosan containing low molecular weight in the natural animal and plant source color fixing agent of the present invention is stronger, can go deep into the inside of dye molecule, play the effect of fixing color from inside, by the chitosan of low molecular weight Sugar can release positive ions and form ionic bonds with anions in natural plant dyes to achieve the purpose of color fixation. Moreover, chitosan itself has excellent biocompatibility, degradability and antibacterial and antibacterial properties, and does not damage the naturalness of natural plant dyes.

(2) The natural animal and plant source color fixing agent of the present invention contains aloe vera gel, which belongs to plant source extracts. Bonding and coating can effectively improve the washing fastness of natural dyes, and aloe vera gel has anti-inflammatory, anti-virus, detumescence and other effects, and can give fabrics certain health care properties.

(3) Pigskin glue is also contained in the natural animal and plant source color-fixing agent of the present invention, and the main component in the pigskin glue is collagen protein, and collagen protein becomes fibrous, can interweave each other and form net shape, and viscosity is very good, can The dye is tightly covered, and it is not easy to fall off or change color, so as to achieve the purpose of improving color fastness.

(4) The natural animal and plant source extract contained in the natural animal and plant source color fixing agent of the present invention can play the purpose of fixing the color of natural plant dyes from many aspects, and achieve the required color of the fabric through certain process conditions. Standard fastness without compromising its naturalness.

detailed description:

The present invention will be described in detail below in conjunction with specific embodiments, where the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

Example 1:

(1) In parts by weight, add 1 part of low molecular weight chitosan to 35 parts of 0.1mol/L hydrochloric acid solution, stir at room temperature until chitosan is completely dissolved, then add 100 parts of absolute ethanol, stir, and filter and drying the precipitate to obtain chitosan quaternary ammonium salt powder.

(2) In parts by weight, wash 1 part of fresh pigskin to remove the hair and dirt on the surface, cut into cubes and mince, add 25 parts of deionized water, heat and stir at 50°C for 30 minutes, and add 0.05 part of biodegradation enzyme , irradiated with microwaves at a power of 1KW/m ² for 60min, centrifuged to inactivate the enzyme, dried and precipitated to obtain pigskin glue.

(3) by weight, the chitosan quaternary ammonium salt powder prepared by 25 parts of steps (1), 15 parts of aloe gel and the pigskin glue prepared by 20 parts of steps (2) were added to 80 parts of Stir in distilled water until it is completely dissolved, add citric acid to adjust the pH value to 5.5, filter and purify, and concentrate to obtain a natural animal and plant source color-fixing agent with a solid content of 65%.

Example 2:

(1) In parts by weight, add 1 part of low molecular weight chitosan to 40 parts of 0.5mol/L hydrochloric acid solution, stir at room temperature until the chitosan is completely dissolved, then add 150 parts of dehydrated alcohol, stir, and filter and drying the precipitate to obtain chitosan quaternary ammonium salt powder.

(2) In parts by weight, wash 1 part of fresh pigskin to remove the hair and dirt on the surface, cut into cubes and mince, add 30 parts of deionized water, heat and stir at 60°C for 50 minutes, and add 0.1 part of biodegradable enzyme , irradiated with microwaves at a power of 3KW/m ² for 90min, centrifuged to inactivate the enzyme, dried and precipitated to obtain pigskin glue.

(3) by weight, the chitosan quaternary ammonium salt powder prepared by 35 parts of steps (1), 30 parts of aloe gel and the pigskin glue prepared by 25 parts of steps (2) were added to 90 parts of Stir in distilled water until completely dissolved, add citric acid to adjust the pH value to 6.5, filter and purify, and concentrate to obtain a natural animal and plant source color fixing agent with a solid content of 70%.

Example 3:

(1) In parts by weight, add 1 part of low molecular weight chitosan into 37 parts of 0.3mol/L hydrochloric acid solution, stir at room temperature until chitosan is completely dissolved, then add 120 parts of dehydrated alcohol, stir, filter and drying the precipitate to obtain chitosan quaternary ammonium salt powder.

(2) In parts by weight, wash 1 part of fresh pigskin to remove the hair and dirt on the surface, mince it into cubes, add 26 parts of deionized water, heat and stir at 55°C for 40 minutes, and add 0.08 parts of biodegradable enzyme , irradiated with microwaves at a power of 2KW/ ^m2 for 70min, centrifuged to inactivate the enzyme, dried and precipitated to obtain pigskin glue.

(3) by weight, the chitosan quaternary ammonium salt powder prepared by 30 parts of steps (1), 20 parts of aloe gel and the pigskin glue prepared by 22 parts of steps (2) were added to 85 parts of Stir in distilled water until it is completely dissolved, add citric acid to adjust the pH value to 6, filter and purify, and concentrate to obtain a natural animal and plant source color fixing agent with a solid content of 68%.

Example 4:

(1) In parts by weight, add 1 part of low molecular weight chitosan to 38 parts of 0.2mol/L hydrochloric acid solution, stir at room temperature until chitosan is completely dissolved, then add 130 parts of dehydrated alcohol, stir, filter and drying the precipitate to obtain chitosan quaternary ammonium salt powder.

(2) In parts by weight, wash 1 part of fresh pigskin to remove the hair and dirt on the surface, cut into cubes and mince, add 28 parts of deionized water, heat and stir at 57°C for 30-50min, add 0.06 part of biological Degrade the enzyme, irradiate with microwaves at a power of ^1-3KW /m2 for 75 minutes, inactivate the enzyme, centrifuge, dry and precipitate to obtain pigskin glue.

(3) by weight, the chitosan quaternary ammonium salt powder prepared by 33 parts of steps (1), 25 parts of aloe gel and the pigskin glue prepared by 21 parts of steps (2) were added to 88 parts of Stir in distilled water until it is completely dissolved, add citric acid to adjust the pH value to 5.9, filter and purify, and concentrate to obtain a natural animal and plant source color fixing agent with a solid content of 66%.

Example 5:

(1) In parts by weight, add 1 part of low molecular weight chitosan into 39 parts of 0.4mol/L hydrochloric acid solution, stir at room temperature until chitosan is completely dissolved, then add 140 parts of dehydrated alcohol, stir, filter and drying the precipitate to obtain chitosan quaternary ammonium salt powder.

(2) In parts by weight, wash 1 part of fresh pigskin to remove the hair and dirt on the surface, cut into cubes and mince, add 29 parts of deionized water, heat and stir at 57°C for 45 minutes, and add 0.08 parts of biodegradable enzyme , irradiated with microwaves at a power of 1.5KW/ ^m2 for 70min, centrifuged to inactivate the enzyme, dried and precipitated to obtain pigskin glue.

(3) by weight, the chitosan quaternary ammonium salt powder prepared by 28 parts of steps (1), 19 parts of aloe gel and 20 parts of pigskin glue prepared by steps (2) were added to 80 parts of Stir in distilled water until completely dissolved, add citric acid to adjust the pH value to 6.3, filter and purify, and concentrate to obtain a natural animal and plant source color fixing agent with a solid content of 68%.

Embodiment 6:

(1) In parts by weight, add 1 part of low molecular weight chitosan to 35 parts of 0.5mol/L hydrochloric acid solution, stir at room temperature until the chitosan is completely dissolved, then add 140 parts of dehydrated alcohol, stir, filter and drying the precipitate to obtain chitosan quaternary ammonium salt powder.

(2) In parts by weight, wash 1 part of fresh pigskin to remove the hair and dirt on the surface, cut into cubes and mince, add 28 parts of deionized water, heat and stir at 55°C for 40 minutes, and add 0.07 parts of biodegradation enzyme , irradiated with microwaves at a power of 2.5KW/ ^m2 for 80min, centrifuged to inactivate the enzyme, dried and precipitated to obtain pigskin glue.

(3) by weight, the chitosan quaternary ammonium salt powder prepared by 30 parts of steps (1), 30 parts of aloe gel and the pigskin glue prepared by 20 parts of steps (2) were added to 90 parts of Stir in distilled water until it is completely dissolved, add citric acid to adjust the pH value to 6.0, filter and purify, and concentrate to obtain a natural animal and plant source color fixing agent with a solid content of 67%.

The color fixing method of Examples 1-6 is as follows: immerse the fabric dyed by natural plant dyes into natural animal and plant source color fixing agent, the bath ratio is 1:25, soak at 60°C for 25-30min, take out, and dehydrate , pre-baked at 110° C. for 2 minutes, and then baked at 140° C. for 2 minutes, and took it out to obtain the finished textile.

After testing, the results of the color fastness of the finished textile products and unfixed textile products prepared by the natural animal and plant source color-fixing agent prepared in Examples 1-6 are as follows:

As can be seen from the above table, the natural animal and plant source color fixing agent prepared by the present invention has remarkable color fixing effect, and the color fastness to washing, color fastness to sunlight and color fastness to rubbing of textiles are all obviously improved, meeting the requirements of textiles for wearing, and The green naturalness of the natural plant dyed fabric is maintained, and it has certain health care value.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention.

Claims (2)

1. a kind of natural animal-plant source color fixing agent, it is characterised in that natural animal-plant source color fixing agent mainly includes chitosan The gluey extract of derivative, plant, animal glue and auxiliary agent, the chitosan derivatives are chitosan hydrochloride, the natural plant gum Shape extract is aloe gel, and the animal glue is pig skin gelatin；

Wherein, a kind of preparation method of natural animal-plant source color fixing agent, comprises the following steps：

(1) by weight, by the hydrochloric acid solution of 1 part of 35-40 parts of chitosan addition, it is stirred at room temperature completely molten to chitosan The absolute ethyl alcohol of liquid, then 100-150 parts of addition, is stirred, filtering, and precipitation drying is obtained into chitosan hydrochloride powder；

(2) by weight, 1 part of fresh porcine skin is cleaned to the hair and dirt for removing surface, 25-30 is added after rubbing of dicing The deionized water of part, heating stirring, the biodegradable enzyme of 0.05-0.1 parts of addition, microwave irradiation, the enzyme that goes out centrifugation, drying is precipitated To pig skin gelatin；

(3) by weight, chitosan hydrochloride powder, 15-30 parts of the aloe gel prepared by (1) the step of 25-35 parts The pig skin gelatin prepared with (2) the step of 20-25 parts is separately added into 80-90 parts of distilled water, and stirring adds lemon to being completely dissolved Lemon acid, filtering purification, is concentrated to give natural animal-plant source color fixing agent；

Wherein, in the step (1), chitosan is the chitosan of low molecule amount, and the concentration of hydrochloric acid solution is 0.1-0.5mol/L；

Wherein, in the step (2), the temperature of heating stirring is 50-60 DEG C, and the power of microwave is 1-3kW/m², the microwave time is 60-90min；

Wherein, in the step (3), the solid content of natural animal-plant source color fixing agent is 65-70%, natural animal-plant source color fixing agent PH value be 5.5-6.5.

2. a kind of natural animal-plant source color fixing agent according to claim 1, it is characterised in that：The natural animal-plant source is consolidated The color fixing process of toner comprises the following steps：The fabric dyed through natural plant dye is impregnated into natural animal-plant source fixation In agent, bath raio is 1:25,25-30min is impregnated at 60 DEG C, is taken out, dehydration, the preliminary drying 2min at 110 DEG C, then at 140 DEG C 2min is bakeed, taking-up obtains final nonwoven product.