阅读说明：本技术 一种竹束深度染色处理方法 (Deep dyeing treatment method for bamboo bundles ) 是由 杨杰 彭坚 薛志成 于 2019-11-29 设计创作，主要内容包括：本发明涉及竹束染色技术领域,且本发明公开了一种竹束深度染色处理方法,包括以下步骤,首先选取原材料,挑选表面没有无青无黄的竹束,并将竹束进行裁剪,保证裁剪后的竹束长宽的尺寸一致,对裁剪后的竹束进行灰尘清理,并将清理后的竹束进行碾压疏解,使竹束成为无节竹束,将无节竹束放入容器内部,并向容器内部添加浓度为0.3～2.4％酸性溶液进行浸泡,溶液温度为75～100℃,浸泡时间为2～5h。本发明通过控制竹束染色步骤及染色方法,能使染色剂有效渗入竹束内部,从而使竹束不易掉色,通过设置固色剂和助染剂,能够有效的增强竹束的染色情况,实现竹束的深度均匀染色,且对竹束内部达到染透的效果,使竹材不易掉色。(The invention relates to the technical field of bamboo bundle dyeing, and discloses a bamboo bundle deep dyeing treatment method which comprises the following steps of selecting raw materials, selecting bamboo bundles without green or yellow on the surface, cutting the bamboo bundles, ensuring the length and width of the cut bamboo bundles to be consistent, cleaning the cut bamboo bundles with dust, rolling and untwining the cleaned bamboo bundles to form the knotless bamboo bundles, placing the knotless bamboo bundles into a container, adding an acid solution with the concentration of 0.3-2.4% into the container, and soaking for 2-5 hours at the solution temperature of 75-100 ℃. According to the invention, through controlling the dyeing steps and the dyeing method of the bamboo bundles, the dyeing agent can effectively permeate into the bamboo bundles, so that the bamboo bundles are not easy to fade, and through arranging the color fixing agent and the dyeing assistant, the dyeing condition of the bamboo bundles can be effectively enhanced, the deep uniform dyeing of the bamboo bundles is realized, and the effect of dye penetration on the interior of the bamboo bundles is achieved, so that the bamboo is not easy to fade.)

1. The deep dyeing treatment method for the bamboo bundles is characterized by comprising the following steps of:

s1: firstly, selecting raw materials, selecting bamboo bundles without green or yellow on the surface, and cutting the bamboo bundles to ensure that the length and width of the cut bamboo bundles are consistent;

s2: cleaning the cut bamboo bundles with dust, and rolling and untwining the cleaned bamboo bundles to form the bamboo bundles without joints;

s3: placing the knotless bamboo bundles into a container, adding an acid solution with the concentration of 0.3-2.4% into the container, and soaking for 2-5 hours at the temperature of 75-100 ℃ to ensure that the interior of the bamboo bundles is completely contacted with the acid solution;

s4: taking out the soaked knotless bamboo bundles from the interior of the container, and simultaneously putting the knotless bamboo bundles into a hydrogen peroxide solution with the concentration of 3% for bleaching operation, wherein the temperature of the hydrogen peroxide solution is 50-65 ℃, and the bleaching time is 1-2.5 hours;

s5: after bleaching of the knotless bamboo bundles is finished, washing the surfaces of the knotless bamboo bundles by using clear water, and removing hydrogen peroxide solution remained on the surfaces of the knotless bamboo bundles;

s6: conveying the cleaned knotless bamboo bundles to the interior of a softening furnace for softening and drying, and simultaneously adding clear water into the softening furnace to avoid excessive softening of the knotless bamboo bundles and ensure that the water content of the knotless bamboo bundles subjected to softening and drying treatment is 8-12%;

s7: cooling the treated knotless bamboo bundles to room temperature;

s8: firstly, taking an acid dye with the mass concentration of 0.8-1.5%, adding the taken acid dye into a pressure furnace, enhancing the pressure of the pressure furnace to be 0.5-1.5 MPa, heating to 100-150 ℃, adding the softened and dried knotless bamboo bundles into the pressure furnace, and keeping the temperature and the pressure for 10-20 min;

s9: after the pressure furnace in the step seven is subjected to heat preservation and pressure maintenance for 10-20 min, adding a dyeing assistant into the pressure furnace, and improving the dyeing effect of the knotless bamboo bundles;

s10: increasing the pressure of the pressure furnace to 5-8 MPa, maintaining the pressure for 48-72 hours, reducing the temperature of the pressure furnace to 60-75 ℃ after the pressure maintaining is finished, adding a color fixing agent into the pressure furnace, and fixing the color of the knot-free bamboo bundles for 30-45 min;

s11: after the color fixing treatment is finished, taking out the knot-free bamboo bundle from the interior of the pressure furnace, cleaning the knot-free bamboo bundle for 2-3 times by using clear water, and cleaning the dye which is not adsorbed on the bamboo bundle;

s12: and (3) putting the cleaned knotless bamboo bundles into a drying oven for drying treatment, taking out the knotless bamboo bundles from the drying oven after the treatment is finished, and cooling to room temperature to obtain the deeply dyed bamboo bundles.

2. The deep dyeing treatment method for bamboo bundles according to claim 1, characterized in that the dyeing rate of the bamboo bundles can be effectively improved by soaking the knotless bamboo bundles in an acid solution in the third step.

3. The bamboo bundle deep dyeing treatment method according to claim 1, characterized in that the clean water described in the fourth step is preferably distilled water, but does not exclude pure water and purified water.

4. The bamboo bundle deep dyeing treatment method according to claim 1, wherein the drying time described in the sixth step is 15 to 20 min.

5. The deep dyeing treatment method for bamboo bundles according to claim 1, wherein the drying temperature of the drying oven in the twelfth step is 90-110 ℃, and the drying time is 1.5-2.5 h.

6. The method for deeply dyeing bamboo bundles according to claim 1, wherein the dyeing assistant described in the ninth step is a sodium sulfate solution with a concentration of 0.2-0.5%, and the fixing agent described in the tenth step is a sodium carbonate solution with a concentration of 0.5-1%.

Technical Field

The invention relates to the technical field of bamboo bundle dyeing, in particular to a deep dyeing treatment method for bamboo bundles.

Background

The bamboo products are frequently used in daily life, generally in pure natural colors, but the bamboo products are often needed to be dyed due to visual characteristics and decorative characteristics. The bamboo wood can react with hydrogen in the air to change color in natural environment; the phenolic substance in the bamboo is very easy to be oxidized after contacting with air to generate the quinone substance with darker color, the degradation product of lignin in the bamboo is also extremely unstable to light and is easy to degrade under the irradiation of the quinone substance, the cellulose content in the bamboo is reduced under the action of microorganisms, the lignin content is relatively increased, and the content of the chromogenic gene is increased along with the reduction of the cellulose content in the bamboo. In addition, the path from the bamboo growing place to the processing base is usually far, most of cut bamboo can not be properly pretreated timely, effectively and thoroughly, so that organic matters and nutrient substances in the bamboo are converted under the change of air temperature in the storage and transportation process (such as the fact that nutrient substances in the bamboo, such as sugar, protein and the like are easy to mildew and are easy to generate phenomena of rotten strips, black knots and the like), and the material taking of the surface material is directly or indirectly influenced; the physical and chemical properties of the bamboo are not changed in the above cases, but the natural appearance of the bamboo is seriously affected. In order to improve the appearance of bamboo, people try to dye the bamboo; but due to the specific physical and chemical properties of the bamboo wood, the bamboo wood is difficult to color.

The surface of the bamboo bundle is mostly colored by the conventional deep dyeing method for the bamboo bundle, the bamboo can only be dyed by the dyeing method, the bamboo bundle cannot be uniformly and thoroughly dyed by dyeing liquid, the chromaticity of the dyed bamboo bundle is different, and the processed bamboo bundle is easy to fade, fade and the like to leak the ground color.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a bamboo bundle deep dyeing treatment method, which solves the problems that the surface layer of a bamboo bundle is mostly colored in the conventional bamboo bundle deep dyeing treatment method, the bamboo can only be dyed on the surface of the bamboo bundle by the dyeing method, the bamboo bundle cannot be uniformly and thoroughly dyed by dyeing liquid, the dyed bamboo bundle is different in chromaticity, and the processed bamboo bundle is easy to fade, fade and the like to leak out of the ground color.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a bamboo bundle deep dyeing treatment method comprises the following steps:

s1: firstly, selecting raw materials, selecting bamboo bundles without green or yellow on the surface, and cutting the bamboo bundles to ensure that the length and width of the cut bamboo bundles are consistent.

S2: and cleaning the cut bamboo bundles with dust, and rolling and untwining the cleaned bamboo bundles to form the knotless bamboo bundles.

S3: placing the knotless bamboo bundles into a container, adding an acid solution with the concentration of 0.3-2.4% into the container, and soaking for 2-5 hours at the temperature of 75-100 ℃ to ensure that the interior of the bamboo bundles is completely contacted with the acid solution.

S4: and taking out the soaked knotless bamboo bundles from the interior of the container, and simultaneously putting the knotless bamboo bundles into a hydrogen peroxide solution with the concentration of 3% for bleaching operation, wherein the temperature of the hydrogen peroxide solution is 50-65 ℃, and the bleaching time is 1-2.5 h.

S5: after bleaching of the knotless bamboo bundles is completed, the surfaces of the knotless bamboo bundles are washed by clear water, and hydrogen peroxide solution remained on the surfaces of the knotless bamboo bundles is removed.

S6: and (3) delivering the cleaned knotless bamboo bundles to the interior of a softening furnace for softening and drying, and simultaneously adding clear water into the interior of the softening furnace, so that the knotless bamboo bundles are prevented from being softened excessively, and the water content of the knotless bamboo bundles subjected to softening and drying treatment is ensured to be 8-12%.

S7: and cooling the treated knotless bamboo bundles to room temperature.

S8: firstly, taking an acid dye with the mass concentration of 0.8-1.5%, adding the taken acid dye into a pressure furnace, enhancing the pressure of the pressure furnace to be 0.5-1.5 MPa, raising the temperature to 100-150 ℃, adding the softened and dried knotless bamboo bundles into the pressure furnace, and keeping the temperature and the pressure for 10-20 min.

S9: and (5) after the pressure furnace in the step seven is subjected to heat preservation and pressure maintenance for 10-20 min, adding a dyeing assistant into the pressure furnace, and improving the dyeing effect of the knotless bamboo bundles.

S10: and increasing the pressure of the pressure furnace to 5-8 MPa, maintaining the pressure for 48-72 hours, reducing the temperature of the pressure furnace to 60-75 ℃ after the pressure maintaining is finished, adding a color fixing agent into the pressure furnace, and fixing the color of the knot-free bamboo bundles for 30-45 min.

S11: and after the color fixing treatment is finished, taking out the knot-free bamboo bundle from the interior of the pressure furnace, cleaning the knot-free bamboo bundle for 2-3 times by using clear water, and cleaning the dye which is not adsorbed on the bamboo bundle.

S12: and (3) putting the cleaned knotless bamboo bundles into a drying oven for drying treatment, taking out the knotless bamboo bundles from the drying oven after the treatment is finished, and cooling to room temperature to obtain the deeply dyed bamboo bundles.

Preferably, in the third step, the knotless bamboo bundles are soaked in the acid solution, so that the dye uptake of the bamboo bundles can be effectively improved.

Preferably, the clean water described in step four is preferably distilled water, but does not exclude pure and purified water.

Preferably, the drying time described in the fifth step is 15-20 min.

Preferably, in the eleventh step, the drying temperature of the drying oven is 90-110 ℃, and the drying time is 1.5-2.5 hours.

Preferably, the dyeing assistant described in the step eight is a sodium sulfate solution with a concentration of 0.2-0.5%, and the fixing agent described in the step nine is a sodium carbonate solution with a concentration of 0.5-1%.

(III) advantageous effects

Compared with the prior art, the invention provides a bamboo bundle deep dyeing treatment method, which has the following beneficial effects:

according to the bamboo bundle deep dyeing treatment method, through controlling the bamboo bundle dyeing step and the dyeing method, the dyeing agent can effectively permeate into the bamboo bundles, so that the bamboo bundles are not prone to fading, the dyeing condition of the bamboo bundles can be effectively enhanced through the arrangement of the color fixing agent and the dyeing assistant, the deep uniform dyeing of the bamboo bundles is achieved, the dye penetration effect is achieved in the bamboo bundles, the bamboo is not prone to fading, the problem that the existing bamboo bundle deep dyeing treatment method is mainly used for dyeing the surface layer of the bamboo bundles, the dyeing method enables the surface of the bamboo bundles to be dyed only, the dyeing liquid cannot be used for uniformly and thoroughly dyeing the bamboo bundles, the chromaticity of the dyed bamboo bundles is different, and the situation that the ground color such as fading and fading is easy to occur in the processed bamboo bundles is solved.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.