CN109402743B - Dry cocoon reeling method - Google Patents
Dry cocoon reeling method Download PDFInfo
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- CN109402743B CN109402743B CN201811637189.XA CN201811637189A CN109402743B CN 109402743 B CN109402743 B CN 109402743B CN 201811637189 A CN201811637189 A CN 201811637189A CN 109402743 B CN109402743 B CN 109402743B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
- D01B7/00—Obtaining silk fibres or filaments
- D01B7/04—Reeling silk
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Abstract
The invention relates to the technical field of silk reeling textile, and discloses a dry cocoon silk reeling method; the problems of low production efficiency and poor rough and quality raw silk of the traditional dry cocoon reeling are solved; soaking dry cocoon shells in clear water, soaking in lime water, performing vacuum infiltration by using mixed penetrating fluid A, boiling the alkali water for 20-40min, adding mixed penetrating fluid B again for infiltration treatment, then soaking in circulating clear water, washing with clear water, performing silk reeling after dehydration treatment, wherein the groping end soup temperature is 50-60 ℃, the groping end soup temperature and the reeling end soup temperature are both 30-35 ℃, and the pH value is 7-7.5; the dry cocoon reeling method of the invention can lead the swelling and dissolving of sericin of the cocoon layer to be proper, and the adhesive force between cocoon silks to be properly reduced, thus the cocoon is easy to be reeled and groped in the subsequent reeling process, the raw silk is clean and well cohered, and the dry cocoon reeling method has unique luster, crease resistance, good dyeing property, high color fastness, large economic value and low consumption of raw material cocoons.
Description
Technical Field
The invention relates to the technical field of silk reeling textile, in particular to a dry cocoon silk reeling method.
Background
With the development of science and technology, especially the application of new equipment such as a high-speed loom and the like in weaving, new requirements are provided for the quality of raw silk: the strength, cohesive force, cleanness and cleanness of the raw silk are improved, so that the raw silk meets the requirements of high tension and strong friction of a high-speed loom. The traditional fresh cocoon silk processing is to directly carry out reeling without drying and boiling cocoons, the process reduces silk making links, reduces cost and energy consumption, and simultaneously keeps the unique original attribute of the cocoon silk, but the cocoon silk processed by the production mode has the problems of low sericin viscosity, poor binding degree between cocoon silks, large sericin content on the surface of the cocoon silk, large rigidity, rough hand feeling and the like, the problems of end breakage, fluffing, sericin powder falling off, poor dyeing performance and the like are easy to occur in the manufacturing process, and the fresh cocoon silk can not meet the weaving requirement of high-quality silk fabric.
The process of drawing silk from silkworm cocoons is generally called reeling, because the fresh cocoons are purchased for only a short period of several days before moths are produced, and the incubation of moths can damage silkworm layers, so that the quality of finished products is influenced, generally, after the fresh cocoons are purchased, the fresh cocoons are firstly baked and dehydrated into dry cocoons, and the storage period of the dry cocoons is longer; the traditional silk reeling adopts dry cocoon silk reeling, and the dry cocoon silk reeling comprises the stages of groping, end brushing, end collecting of cocoon silk, picking and sheathing, reeling and separating, end feeding and end receiving when the cocoon silk of partial cocoon is reeled or the end is broken in the middle, and winding and drying of raw silk; during groping end, cocoon without end is put into a groping end pot containing high-temperature soup at about 90 ℃ to be cooked thoroughly so as to grove end; in order to reduce the adhesion force between the cocoon filaments and to sequentially dissociate the cocoon filaments during the reeling process, the normal end cocoons are put into reeling soup at 40 ℃. The reeling method comprises the following steps: 1. the process is complex, the energy consumption is large, and the production efficiency is low; 2. the fresh pupae can not be effectively utilized, thus causing resource waste; 3. the low yield causes the low economic benefit.
The cocoon cooking process of the dry cocoons plays an important role in the reeling process. Cocoon cooking is a key process in a silk making process, silk making is carried out by adopting a process technology of outer vacuum infiltration and inner cooking in China at present, and silkworm cocoons are subjected to vacuum infiltration water absorption treatment before cooking, so that the cooked cocoons are fully infiltrated and uniformly cooked, the outer layers and the middle and inner layers of the cocoons are fully protected, and the thread falling of the inner layers and the rough layers is reduced. However, because the cocoon shells of the silkworm cocoons are numerous, the resistance to water absorption and permeation is large, and the water absorption and permeation effects of the cocoon shells are small, the requirements on temperature, pressure, time and flow are extremely high during vacuum permeation and water absorption treatment, and the operation is difficult.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a dry cocoon reeling method. Solves the problems of low production efficiency and poor rough and quality raw silk of the traditional dry cocoon reeling.
The invention is realized by the following technical scheme.
A dry cocoon reeling method comprises the following steps:
1) and (4) soaking the dry cocoon shells in clear water for 24 hours, and draining.
2) Soaking the cocoon shells obtained after the treatment in the step 1) in lime water with the mass percentage concentration of 0.08% -0.12% for 4-5 hours.
3) Performing vacuum infiltration on the silkworm cocoons soaked in the step 2) by using a mixed infiltration liquid A, wherein the mixed infiltration liquid A is a mixture of a tea extract, sesame oil and sodium silicate, and the mass ratio of the tea extract to the sesame oil to the sodium silicate is 2:2: 0.5; the tea extract is prepared by circularly extracting fresh tea with ethanol and concentrating.
4) Boiling the silkworm cocoon prepared in the step 3) for 20-40min by using 0.1-0.2% of alkaline water by mass percentage.
5) Putting the silkworm cocoons prepared in the step 4) into an infiltration device, and adding a mixed infiltration liquid B for infiltration treatment, wherein the mixed infiltration liquid B is a mixed liquid of citric acid and polyacrylamide, and the mass ratio of the citric acid to the polyacrylamide is 2: 1.
6) Soaking the silkworm cocoons obtained in the step 5) in circulating clear water for 2-3 hours, and then washing the silkworm cocoons clean with clear water to obtain semi-finished products.
7) And (5) dehydrating the semi-finished product.
8) Reeling silk on the dewatered semi-finished product, wherein the groping end soup temperature is 50-60 deg.C, the groping end soup temperature and the reeling end soup temperature are both 30-35 deg.C, and the pH value is 7-7.5.
Preferably, the vacuum infiltration parameters are that the pressure in the infiltration device is 0.08-0.09Mpa, the temperature of the mixed infiltration liquid A or B is 36-45 ℃, and the infiltration time is 1-5 min.
Compared with the prior art, the invention has the beneficial effects that.
According to the invention, the silkworm cocoons are subjected to vacuum infiltration before and after being cooked, and the mixed solution of the tea extract, the sesame oil and the sodium silicate is adopted for soaking and infiltration during the first vacuum infiltration, so that the adhesive force among silks is properly reduced while stains on the surfaces of the silkworm cocoons are effectively removed, the subsequent cocoon cooking is facilitated, and a foundation is laid for reducing the pH value in the cocoon cooking process; the purpose of smoothly dissociating cocoon silks is achieved, and the reelability effect of the silkworm cocoons is better; the cocoon cooking is carried out on the basis, so that the middle-inner layer of the silkworm cocoon is favorably cooked, the outer layer is protected, the cooking is uniform, and the reelability of the raw material cocoon is improved; after the silkworm cocoons are cooked, the silkworm cocoons are soaked in the water solution containing the inhibitor, so that the reelability of the silkworm cocoons can be stabilized, and the problem of quality reduction of raw silk excessively dissolved by sericin is avoided. And then vacuum infiltration is carried out again, and the water spouting of the silkworm cocoons is enhanced by adopting the mixed solution of citric acid and polyacrylamide, so that the defect of impurity adsorption in the following procedures of rough removal, repeated shaking, drying and the like caused by adopting a single ionic fabric softener in the prior art is effectively overcome.
Compared with the silk obtained by the conventional cocoon cooking method, the silk obtained by the dry cocoon cooking method has uniform and excellent performances in the aspects of tensile strength, breaking growth rate, reelability, cleanliness and cleanliness, the dry cocoon reeling method can ensure that the sericin of a cocoon layer is moderately swelled and dissolved, and the adhesive force among the cocoon silks is properly reduced, so that the silkworm cocoons are easy to reel and grope in the subsequent reeling process, the raw silk is clean and well cohered, and the dry cocoon cooking method has unique luster, good crease resistance and dyeability, high color fastness, high economic value and low consumption of raw material cocoons; the method has the advantages of simple process, convenient operation, low production cost and excellent quality of the obtained silk, can improve the economic benefit of the cocoon silk industry, meets the diversified demands of domestic and foreign markets, and has good development prospect. The quality of the silk floss processed by the method reaches the original pure manual processing quality, and the silk floss is pure white and soft and completely meets the relevant requirements of silk floss detection.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail with reference to the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solutions of the present invention are described in detail below with reference to examples, but the scope of protection is not limited thereto.
Example 1
A dry cocoon reeling method comprises the following steps:
1) and (4) soaking the dry cocoon shells in clear water for 24 hours, and draining.
2) Soaking the cocoon shells obtained after the treatment in the step 1) in lime water with the mass percentage concentration of 0.08% for 5 hours.
3) Performing vacuum infiltration on the silkworm cocoons soaked in the step 2) by using a mixed infiltration liquid A, wherein the mixed infiltration liquid A is a mixture of a tea extract, sesame oil and sodium silicate, and the mass ratio of the tea extract to the sesame oil to the sodium silicate is 2:2: 0.5; the tea extract is prepared by circularly extracting fresh green tea leaves by using ethanol and concentrating; the parameters of vacuum infiltration are that the pressure in the infiltration device is 0.09Mpa, the temperature of the mixed penetrating fluid A is 45 ℃, and the infiltration time is 1 min.
4) Boiling the silkworm cocoons prepared in the step 3) for 40min by using alkaline water with the mass percentage concentration of 0.1%.
5) Putting the silkworm cocoons prepared in the step 4) into an infiltration device, and adding a mixed infiltration liquid B for infiltration treatment, wherein the mixed infiltration liquid B is a mixed liquid of citric acid and polyacrylamide, and the mass ratio of the citric acid to the polyacrylamide is 2: 1. The parameters of vacuum infiltration are that the pressure in the infiltration device is 0.08Mpa, the temperature of the mixed infiltration liquid B is 36 ℃, and the infiltration time is 5 min.
6) Soaking the silkworm cocoons obtained in the step 5) in circulating clear water for 2 hours, and then washing the silkworm cocoons clean with clear water to obtain semi-finished products.
7) And dehydrating the semi-finished product by using drying equipment.
8) And reeling the dehydrated semi-finished product, wherein the groping end soup temperature is 50 ℃, the groping end soup temperature and the reeling end soup temperature are both 30 ℃, and the pH value is 7, so as to obtain raw silk.
Example 2
A dry cocoon reeling method comprises the following steps:
1) and (4) soaking the dry cocoon shells in clear water for 24 hours, and draining.
2) Soaking the cocoon shells obtained after the treatment in the step 1) in lime water with the mass percentage concentration of 0.12% for 4 hours.
3) Performing vacuum infiltration on the silkworm cocoons soaked in the step 2) by using a mixed infiltration liquid A, wherein the mixed infiltration liquid A is a mixture of a tea extract, sesame oil and sodium silicate, and the mass ratio of the tea extract to the sesame oil to the sodium silicate is 2:2: 0.5; the tea extract is prepared by circularly extracting fresh green tea leaves by using ethanol and concentrating; the parameters of vacuum infiltration are that the pressure in the infiltration device is 0.08Mpa, the temperature of the mixed penetrating fluid A is 36 ℃, and the infiltration time is 5 min.
4) Boiling the silkworm cocoons prepared in the step 3) for 20min by using alkaline water with the mass percentage concentration of 0.2%.
5) Putting the silkworm cocoons prepared in the step 4) into an infiltration device, and adding a mixed infiltration liquid B for infiltration treatment, wherein the mixed infiltration liquid B is a mixed liquid of citric acid and polyacrylamide, and the mass ratio of the citric acid to the polyacrylamide is 2: 1. The parameters of vacuum infiltration are that the pressure in the infiltration device is 0.085Mpa, the temperature of the mixed penetrating fluid B is 40 ℃, and the infiltration time is 3 min.
6) Soaking the silkworm cocoons obtained in the step 5) in circulating clear water for 3 hours, and then washing the silkworm cocoons clean with clear water to obtain semi-finished products.
7) And dehydrating the semi-finished product by using drying equipment.
8) And reeling the dehydrated semi-finished product, wherein the groping end soup temperature is 60 ℃, the groping end soup temperature and the reeling end soup temperature are both 35 ℃, and the pH value is 7.5, so as to obtain raw silk.
Example 3
A dry cocoon reeling method comprises the following steps:
1) and (4) soaking the dry cocoon shells in clear water for 24 hours, and draining.
2) Soaking the cocoon shells obtained after the treatment in the step 1) in lime water with the mass percentage concentration of 0.10% for 4.5 hours.
3) Performing vacuum infiltration on the silkworm cocoons soaked in the step 2) by using a mixed infiltration liquid A, wherein the mixed infiltration liquid A is a mixture of a tea extract, sesame oil and sodium silicate, and the mass ratio of the tea extract to the sesame oil to the sodium silicate is 2:2: 0.5; the tea extract is prepared by circularly extracting fresh green tea leaves by using ethanol and concentrating; the parameters of vacuum infiltration are that the pressure in the infiltration device is 0.085Mpa, the temperature of the mixed penetrating fluid A is 39 ℃, and the infiltration time is 2 min.
4) Boiling the silkworm cocoons prepared in the step 3) for 30min by using alkaline water with the mass percentage concentration of 0.15%.
5) Putting the silkworm cocoons prepared in the step 4) into an infiltration device, and adding a mixed infiltration liquid B for infiltration treatment, wherein the mixed infiltration liquid B is a mixed liquid of citric acid and polyacrylamide, and the mass ratio of the citric acid to the polyacrylamide is 2: 1. The parameters of vacuum infiltration are that the pressure in the infiltration device is 0.086Mpa, the temperature of the mixed penetrating fluid B is 42 ℃, and the infiltration time is 4 min.
6) Soaking the silkworm cocoons obtained in the step 5) in circulating clear water for 3 hours, and then washing the silkworm cocoons clean with clear water to obtain semi-finished products.
7) And dehydrating the semi-finished product by using drying equipment.
8) And reeling silk on the dehydrated semi-finished product, wherein the groping end soup temperature is 55 ℃, the groping end soup temperature and the reeling end soup temperature are both 32 ℃, and the pH value is 7, so as to obtain raw silk.
While the invention has been described in further detail with reference to specific preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (2)
1. A dry cocoon reeling method is characterized by comprising the following steps:
1) soaking the dry cocoon shells in clear water for 24 hours, and draining;
2) soaking the cocoon shell obtained after the treatment in the step 1) in lime water with the mass percentage concentration of 0.08% -0.12% for 4-5 hours;
3) performing vacuum infiltration on the silkworm cocoons soaked in the step 2) by using a mixed infiltration liquid A, wherein the mixed infiltration liquid A is a mixture of a tea extract, sesame oil and sodium silicate, and the mass ratio of the tea extract to the sesame oil to the sodium silicate is 2:2: 0.5; the tea extract is prepared by circularly extracting fresh tea leaves by using ethanol and concentrating;
4) boiling the silkworm cocoons prepared in the step 3) for 20-40min by using 0.1-0.2% of alkaline water by mass percentage;
5) putting the silkworm cocoons prepared in the step 4) into an infiltration device, and adding a mixed infiltration liquid B for infiltration treatment, wherein the mixed infiltration liquid B is a mixed liquid of citric acid and polyacrylamide, and the mass ratio of the citric acid to the polyacrylamide is 2: 1;
6) soaking the silkworm cocoons obtained in the step 5) in circulating clear water for 2-3 hours, and then washing the silkworm cocoons clean with clear water to obtain semi-finished products;
7) dehydrating the semi-finished product;
8) reeling silk on the dewatered semi-finished product, wherein the groping end soup temperature is 50-60 deg.C, the groping end soup temperature and the reeling end soup temperature are both 30-35 deg.C, and the pH value is 7-7.5.
2. The dry cocoon reeling method of claim 1, wherein the vacuum infiltration parameters are that the pressure in the infiltration apparatus is 0.08-0.09Mpa, the temperature of the mixed infiltration liquid A or B is 36-45 ℃, and the infiltration time is 1-5 min.
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CN104213201B (en) * | 2014-09-01 | 2016-06-01 | 贵州黄平县海翔丝绸有限公司 | A kind of method of dry cocoon shell filature |
CN104372415B (en) * | 2014-11-17 | 2016-08-24 | 浙江大学 | A kind of method improving fresh cocoon reeling raw silk cohesion |
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CN107881569A (en) * | 2017-12-05 | 2018-04-06 | 广西立盛茧丝绸有限公司 | A kind of dried cocoon boiling method |
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Address after: 048000 Shudi village, Sitou Township, Yangcheng County, Jincheng City, Shanxi Province Patentee after: Shanxi yujiahao Silk Industry Co.,Ltd. Address before: 048012 Shudi village, Sitou Township, Yangcheng County, Jincheng City, Shanxi Province Patentee before: YANGCHENG YUJIAHAO SILK INDUSTRY Co.,Ltd. |
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