CN109234814A - It is a kind of to guarantee that the two of cocoon quality rushes drying means - Google Patents
It is a kind of to guarantee that the two of cocoon quality rushes drying means Download PDFInfo
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- CN109234814A CN109234814A CN201810810705.8A CN201810810705A CN109234814A CN 109234814 A CN109234814 A CN 109234814A CN 201810810705 A CN201810810705 A CN 201810810705A CN 109234814 A CN109234814 A CN 109234814A
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- cocoon
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
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- Life Sciences & Earth Sciences (AREA)
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- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- General Engineering & Computer Science (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention belongs to the technical field of drying of silk cocoon, guarantee that the two of cocoon quality rushes drying means more particularly to a kind of, including fresh silk cocoon immersion treatment 10-15 minutes in the ethanol solution hydrochloride that mass concentration is 0.5-1%, drains away the water after taking-up, handled to obtain the dry silk cocoon of primary drying with electromagnetic field；The dry silk cocoon of above-mentioned gained primary drying is peelled off into husks, is handled 12-14 minutes in the microwave that microwave frequency is 240-260W.The present invention is had the advantage that in the present invention compared with prior art by after ethanol solution hydrochloride immersion treatment, it is handled with electromagnetic field, baking rate can be made to reach 65% or so in a short time, and can guarantee drying uniformly, low fire microwave treatment, can effectively control oil yield in cooperation, under the premise of guaranteeing total baking rate, the raw silk tenacity for improving silk cocoon cleanliness, and the silk cocoon reel silk from cocoons after drying capable of being made to obtain is kept and common heated-air drying gained is essentially identical, improves cocoon quality.
Description
Technical field
The invention belongs to the technical field of drying of silk cocoon, and in particular to a kind of to guarantee that the two of cocoon quality rushes drying means.
Background technique
With the rapid development of microwave technology and increasingly mature, it has been widely used in industries such as food, chemical industry, with
And heating, drying and sterilization in daily life, with microwave come dried material have drying time is short, heating uniformity is good, hot
The seasonality of the features such as high-efficient, silk cocoon harvest are very strong, and the fresh silk cocoon after harvest must carry out pupa killing and drying process in time, fresh
Cocoon preservation is improper to be easy to go bad, such as moth, out maggot and mildew out, so that raw silk quality is influenced, currently, silk cocoon mostly uses heat
Wind seasoning, drying time is long, and effect is low, and cocoon drying low efficiency will cause fresh cocoon accumulation, and fever is rotten, influences silk quality,
Cocoon drying is the process that internal moisture diffuses through surface evaporation, while key is pupal cell moisture evolution inside silk cocoon,
Saving cocoon layer has moisture appropriate, and cocoon layer is first heated to higher temperature, is passing through heat transfer by traditional air drying methods
Pupal cell is heated, in order to avoid cocoon layer damage, drying temperature is had certain limitations, especially two rush the stage, and temperature is lower than primary drying,
Cocoon drying effect is influenced, therefore typically now uses microwave heating, can efficiently be conducted heat, but containing due to fresh cocoon pupal cell
Water is much higher than the water content of cocoon layer, and microwave heating effect is high, and quick heating, drying course can generate a large amount of aqueous vapor and cause in pupal cell
Big, generation thermal breakdown, i.e. pupal cell Decrepitation Phenomena are pressed through, so that dye cocoon in generating, restricts microwave technology answering in cocoon drying
With in the prior art by using low and middle-grade microwaves, control while can be improved cocoon drying effect after drying silk cocoon to hot wind primary drying
Oil cut rate is produced, but the common heated-air drying of gained silk productivity ratio is low, it is therefore desirable to further research.
Summary of the invention
The purpose of the present invention is being directed to existing problem, provide it is a kind of guarantee cocoon quality two rush drying means.
The present invention is achieved by the following technical solutions: it is a kind of to guarantee that the two of cocoon quality rushes drying means, including with
Lower content:
(1) fresh silk cocoon is dripped after taking-up immersion treatment 10-15 minutes in the ethanol solution hydrochloride that mass concentration is 0.5-1%
Solid carbon dioxide point, is handled with electromagnetic field, is after 1250Gs is handled 3-5 minutes in magnetic field strength, adjusting magnetic field strength is that 600Gs continues to locate
Reason 10 minutes obtains the dry silk cocoon of primary drying；
(2) the dry silk cocoon of above-mentioned gained primary drying is peelled off into husks, 12-14 points of processing in the microwave that microwave frequency is 240-260W
Clock.
As further improvement of these options, the baking rate of the dry silk cocoon of primary drying obtained by the step (1) is 64.3-
65.8%, the baking rate after the completion of step (2) is 38.5-40.5%.
As further improvement of these options, the fresh silk cocoon is in ethanol solution hydrochloride when immersion treatment, week
Phase property ultrasonic treatment, every ultrasonic treatment 20s stop 40 seconds, alternately.
As further improvement of these options, the intensity of the ultrasonic treatment is 28-32kHz.
As further improvement of these options, the ethanol solution hydrochloride further includes being equivalent to its weight 0.2-0.4%
Diversiform-leaved poplar buck extract.
As further improvement of these options, the preparation method of the diversiform-leaved poplar buck extract is that diversiform-leaved poplar alkali cleans
After crush, be to be impregnated 30-40 minutes in 40-45 DEG C of water in temperature, then extract, obtain under conditions of 600-800 revs/min
To Aqueous extracts, after 0.22 μm of ultrafiltration membrane carries out ultrafiltration, drying to water content is 1-3%；The weight ratio of the diversiform-leaved poplar alkali and water
For 1:4-6.
As further improvement of these options, smashed partial size is 200 mesh after the diversiform-leaved poplar alkali removal of impurities.
The present invention is had the advantage that in the present invention compared with prior art by using after ethanol solution hydrochloride immersion treatment
Electromagnetic field processing, can make in a short time baking rate reach 65% or so, and can guarantee drying uniformly, in cooperation at low fire microwave
Reason, can effectively control oil yield, under the premise of guaranteeing total baking rate, improve silk cocoon cleanliness, and the silk cocoon reel silk from cocoons after drying can be made to obtain
Raw silk tenacity keep and essentially identical obtained by common heated-air drying, raising cocoon quality.
Specific embodiment
Embodiment 1
It is a kind of to guarantee that the two of cocoon quality rushes drying means, including the following contents:
(1) fresh silk cocoon is drained the water after taking-up immersion treatment 12 minutes in the ethanol solution hydrochloride that mass concentration is 0.8%
Point, it is handled with electromagnetic field, is after 1250Gs is handled 4 minutes in magnetic field strength, adjusting magnetic field strength is that 600Gs continues with 10 points
Clock obtains the dry silk cocoon of primary drying；
(2) the dry silk cocoon of above-mentioned gained primary drying is peelled off into husks, is handled 13 minutes in the microwave that microwave frequency is 250W.
Wherein, the baking rate of the dry silk cocoon of primary drying obtained by the step (1) is 65.27%, and the baking rate after the completion of step (2) is
39.74%。
Wherein, the fresh silk cocoon when immersion treatment, is periodically ultrasonically treated, every ultrasonic treatment in ethanol solution hydrochloride
20s, stops 40 seconds, alternately.
Wherein, the intensity of the ultrasonic treatment is 30kHz.
Embodiment 2
It is a kind of to guarantee that the two of cocoon quality rushes drying means, including the following contents:
(1) fresh silk cocoon is drained the water after taking-up immersion treatment 15 minutes in the ethanol solution hydrochloride that mass concentration is 0.5%
Point, it is handled with electromagnetic field, is that 1250Gs is handled after five minutes in magnetic field strength, adjusting magnetic field strength is that 600Gs continues with 10 points
Clock obtains the dry silk cocoon of primary drying；
(2) the dry silk cocoon of above-mentioned gained primary drying is peelled off into husks, is handled 14 minutes in the microwave that microwave frequency is 240W.
Wherein, the baking rate of the dry silk cocoon of primary drying obtained by the step (1) is 64.35%, and the baking rate after the completion of step (2) is
39.52%。
Wherein, the fresh silk cocoon when immersion treatment, is periodically ultrasonically treated, every ultrasonic treatment in ethanol solution hydrochloride
20s, stops 40 seconds, alternately.
Wherein, the intensity of the ultrasonic treatment is 32kHz.
Embodiment 3
It is a kind of to guarantee that the two of cocoon quality rushes drying means, including the following contents:
(1) fresh silk cocoon is drained away the water after taking-up immersion treatment 10 minutes in the ethanol solution hydrochloride that mass concentration is 1%,
It is handled with electromagnetic field, is after 1250Gs is handled 3 minutes in magnetic field strength, adjusting magnetic field strength is that 600Gs is continued with 10 minutes,
Obtain the dry silk cocoon of primary drying；
(2) the dry silk cocoon of above-mentioned gained primary drying is peelled off into husks, is handled 12 minutes in the microwave that microwave frequency is 260W.
Wherein, the baking rate of the dry silk cocoon of primary drying obtained by the step (1) is 65.84%, and the baking rate after the completion of step (2) is
40.59%。
Wherein, the fresh silk cocoon when immersion treatment, is periodically ultrasonically treated, every ultrasonic treatment in ethanol solution hydrochloride
20s, stops 40 seconds, alternately.
Wherein, the intensity of the ultrasonic treatment is 28kHz.
Embodiment 4
It is a kind of to guarantee that the two of cocoon quality rushes drying means, including the following contents:
(1) fresh silk cocoon is drained the water after taking-up immersion treatment 12 minutes in the ethanol solution hydrochloride that mass concentration is 0.8%
Point, it is handled with electromagnetic field, is after 1250Gs is handled 4 minutes in magnetic field strength, adjusting magnetic field strength is that 600Gs continues with 10 points
Clock obtains the dry silk cocoon of primary drying；
(2) the dry silk cocoon of above-mentioned gained primary drying is peelled off into husks, is handled 13 minutes in the microwave that microwave frequency is 250W.
Wherein, the baking rate of the dry silk cocoon of primary drying obtained by the step (1) is 64.86%, and the baking rate after the completion of step (2) is
39.43%。
Wherein, the fresh silk cocoon when immersion treatment, is periodically ultrasonically treated, every ultrasonic treatment in ethanol solution hydrochloride
20s, stops 40 seconds, alternately.
Wherein, the intensity of the ultrasonic treatment is 30kHz.
Wherein, the ethanol solution hydrochloride further includes the diversiform-leaved poplar buck extract for being equivalent to its weight 0.3%.
Wherein, the preparation method of the diversiform-leaved poplar buck extract is that will crush after the removal of impurities of diversiform-leaved poplar alkali, the water for being 42 DEG C in temperature
It is middle to impregnate 35 minutes, it is then extracted under conditions of 700 revs/min, obtains Aqueous extracts, carry out ultrafiltration through 0.22 μm of ultrafiltration membrane
Afterwards, drying to water content is 2%；The weight ratio of the diversiform-leaved poplar alkali and water is 1:5.
Wherein, smashed partial size is 200 mesh after the diversiform-leaved poplar alkali removal of impurities.
Control group 1 is set, and by immersion treatment process is removed in ethanol solution hydrochloride in embodiment 1, remaining content is constant；
Control group 2 is set, electromagnetic field processing step in embodiment 1 is removed, is substituted for and is air-dried with hot air circulation, the cocoon drying time is 2 small
When, each layer temperature setting are as follows: 1 layer 100 DEG C, 2 layers 110 DEG C, 3 layers 95 DEG C, 4 layers 85 DEG C, remaining content is constant；Control group 3 is set,
With the primary drying cocoon of heated-air drying baking rate 60% or so in " experimental study that microwave two rushes dry silk cocoon " (bright wait writes in east), use
Low fire screen microwave carries out processing in 18 minutes in 280W, tests each group drying effect and raw silk strong sandstorm, reference
Standard GB/T 1798-2008 " raw silk test method ", with XL-1 type Yarn Strength instrument to the raw silk obtained by sample cocoon institute reel silk from cocoons
23.3dtex carries out strength of filament and elongation detection, tensile strength 500mm/min, pretightning force 1.5cN；
Obtain following result:
Table 1
| Group | Primary drying baking rate (%) | Total baking rate (%) | Oil yield (%) | Strongly (N/dtex) | Elongation (%) |
| Embodiment 1 | 65.27 | 39.74 | 0.35 | 4.45 | 24.7 |
| Embodiment 2 | 64.35 | 39.52 | 0.42 | 4.46 | 23.4 |
| Embodiment 3 | 65.84 | 40.59 | 0.37 | 4.45 | 24.8 |
| Embodiment 4 | 64.86 | 39.43 | 0.25 | 4.48 | 25.6 |
| Control group 1 | 62.75 | 38.13 | 2.74 | 3.75 | 19.5 |
| Control group 2 | 65.12 | 42.60 | 1.86 | 4.42 | 20.3 |
| Control group 3 | 63.95 | 39.01 | 2.50 | 4.44 | 21.4 |
Can be seen that by data in table 1 can be improved Cocoon Quality compared with prior art in the present invention, be conducive to improve silk
The quality of product.
Claims (7)
1. a kind of guarantee that the two of cocoon quality rushes drying means, which is characterized in that including the following contents:
(1) fresh silk cocoon is dripped after taking-up immersion treatment 10-15 minutes in the ethanol solution hydrochloride that mass concentration is 0.5-1%
Solid carbon dioxide point, is handled with electromagnetic field, is after 1250Gs is handled 3-5 minutes in magnetic field strength, adjusting magnetic field strength is that 600Gs continues to locate
Reason 10 minutes obtains the dry silk cocoon of primary drying；
(2) the dry silk cocoon of above-mentioned gained primary drying is peelled off into husks, 12-14 points of processing in the microwave that microwave frequency is 240-260W
Clock.
2. a kind of as described in claim 1 guarantee that the two of cocoon quality rushes drying means, which is characterized in that step (1) institute
The baking rate for obtaining the dry silk cocoon of primary drying is 64.3-65.8%, and the baking rate after the completion of step (2) is 38.5-40.5%.
3. a kind of as described in claim 1 guarantee that the two of cocoon quality rushes drying means, which is characterized in that the fresh silk cocoon exists
It in ethanol solution hydrochloride when immersion treatment, is periodically ultrasonically treated, every ultrasonic treatment 20s stops 40 seconds, alternately.
4. a kind of as claimed in claim 3 guarantee that the two of cocoon quality rushes drying means, which is characterized in that the ultrasonic treatment
Intensity is 28-32kHz.
5. a kind of guarantee that the two of cocoon quality rushes drying means as described in claim 1, which is characterized in that the acidic alcohol is molten
Liquid further includes the diversiform-leaved poplar buck extract for being equivalent to its weight 0.2-0.4%.
6. a kind of as claimed in claim 5 guarantee that the two of cocoon quality rushes drying means, which is characterized in that the diversiform-leaved poplar buck mentions
The preparation method of object is that will crush after the removal of impurities of diversiform-leaved poplar alkali, impregnate 30-40 minutes in the water that temperature is 40-45 DEG C, then exist
It is extracted under conditions of 600-800 revs/min, obtains Aqueous extracts, it is dry to water content after 0.22 μm of ultrafiltration membrane carries out ultrafiltration
For 1-3%；The weight ratio of the diversiform-leaved poplar alkali and water is 1:4-6.
7. a kind of as claimed in claim 6 guarantee that the two of cocoon quality rushes drying means, which is characterized in that the diversiform-leaved poplar alkali removal of impurities
Smashed partial size is 200 mesh afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810810705.8A CN109234814A (en) | 2018-07-23 | 2018-07-23 | It is a kind of to guarantee that the two of cocoon quality rushes drying means |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810810705.8A CN109234814A (en) | 2018-07-23 | 2018-07-23 | It is a kind of to guarantee that the two of cocoon quality rushes drying means |
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|---|---|---|---|---|
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