WO2018040887A1 - Dioscorea cirrhosa drying technique and dioscorea cirrhosa drying device for manufacturing dioscorea cirrhosa fabric - Google Patents

Abstract

A Dioscorea cirrhosa drying technique and a Dioscorea cirrhosa drying device for manufacturing a Dioscorea cirrhosa fabric. The Dioscorea cirrhosa drying technique comprises the steps: (1) immersion dyeing step: fully-immersing a flat woven product in Dioscorea cirrhosa juice; (2) pre-heating step: heating, by using a heating device, equidistant areas from a top and bottom side or from only a single side of the flat woven product; (3) illuminating step: uniformly illuminating, by using an ultraviolet and/or infra-red light, areas equidistant from the top and bottom sides or from only a single side of the woven product; (4) uniform wetting; (5) uniform cooling; and (6) repeating the dyeing and illuminating steps: repeating steps (1) to (5) as required for 10-20 times. Using ultraviolet light to dry the Dioscorea cirrhosa eliminates the influence of weather and other natural factors when sun-drying the Dioscorea cirrhosa, improving the production efficiency for manufacturing a Dioscorea cirrhosa fabric, and enhancing the luster, color difference, and color fastness of the Dioscorea cirrhosa fabric. The invention improves the appearance and quality of the Dioscorea cirrhosa fabric, and realizes standardized production of a Dioscorea cirrhosa drying technique and stable manufacturing of a product complying with a standard of Dioscorea cirrhosa fabrics.

Description

[Name of invention made by ISA according to Rule 37.2] Preparation process and drying device for crepe silk

The present application claims the benefit of priority to the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit.

Technical field

The invention relates to a technique for preparing crepe silk, in particular to a drying process and a drying device for preparing crepe silk.

Background technique

The crepe silk is a fabric in which the yarn or silk fabric is impregnated and dried by a tuber juice of a plant called Dioscorea cirrhosa Lour. The ionic pond mud is uniformly applied to the surface of the fabric, and after repeated drying and washing, the juice of the plant which is made into the front black and the bottom brown fabric is dyed, and then becomes crepe and crepe.

Illumination plays a very important role in the production of silk. After the sun shines, the black color of the silk is more natural and shiny. Because the drying process requires extremely strict light intensity, the strength of the sun determines the time of silk production in a year. It is only started from mid-April to the end of October each year. Only the intensity of the sun in this period is suitable for drying, and the producers work hard almost every day. Every year from July to August (that is, the lunar calendar of the lunar calendar to the autumn festival) because the sun is too strong, the temperature is too high, the production of silk will become hard and brittle. After November, due to the dry monsoon in the north, it is not suitable for drying. Similarly, in the process of drying, it is necessary to determine the length of time for drying according to environmental factors such as sunlight intensity, temperature, air humidity, air volume, etc. If the drying time is too short, the silk color is poor, and the drying time is too long. It is also prone to sputum silk becoming hard and brittle.

It can be seen that in the process of preparing crepe silk by the traditional craftsmanship, the drying process is limited by many conditions: 1 the timing of drying needs to be limited by the weather, and there is not much weather for drying in one year; 2 drying The time is limited by the craftsman's experience based on the light intensity, humidity, air volume and other circumstances. The deviation is large, and the quality of silk is not uniform. 3 Due to the limitation of natural conditions, the compliance rate of the manufactured products (according to the national standard of crepe GB/T 22856-2009) is relatively low.

Summary of the invention

In order to overcome the defects of the prior art, the present invention provides a drying process and a drying device for preparing crepe silk. In the drying device, ultraviolet light or/and infrared light are used instead of natural light, and the environmental parameters of the drying process are controllable. It is beneficial to improve the production efficiency and product quality of the prepared crepe silk.

A drying process for preparing crepe silk, comprising the steps of:

(1) the dip dyeing step, the flat fabric is fully soaked in the yam juice, and the fabric is uniformly dyed for at least 20 minutes; the fabric is a silk fabric, a plant fiber fabric or a protein fiber fabric;

(2) preheating step, from the upper and lower sides of the flat fabric, equidistant or only one side heated by heating means for 2-3 minutes to partially evaporate the moisture of the yam juice on the fabric, the preheating temperature is 38 ° C ~ 42 ° C;

(3) Irradiation step, uniformly irradiating the fabric from the upper and lower sides of the fabric at equal distance or only on one side by ultraviolet rays and/or infrared rays, and the irradiation time is 10 to 15 minutes, and the ultraviolet and/or infrared irradiation intensity of the surface of the fabric is 10 to 20 μW/cm ^{2 .} ;

(4) a uniform wetting step, uniformly spraying steam from the upper and lower sides of the fabric to wet the fabric;

(5) cooling step, uniformly cooling the fabric from the upper and lower sides of the fabric;

(6) Repeating the dyeing process, repeating steps (1) to (5) as needed, and repeating the number of times 10 to 20 times;

(7) Subsequent processing, silking, storage.

Further, the irradiation time of the illuminating fabric was 12 minutes, and the ultraviolet ray irradiation intensity on the fabric was 15 μW/cm ² .

Further, the preheating temperature was 40 °C.

Further, the number of repetitions of the steps (1) to (5) is 15 times.

The drying device for preparing a crepe silk drying process comprises a box body, the two sides of the box body are relatively parallel arranged with a guide rail, and a horizontal moving device is arranged on the guide rail, and the fabric is flatly sandwiched between two In the horizontal moving device of the side, the box sequentially comprises a preheating station, an irradiation station, a uniform wetting station, a cooling station, and each working chamber has a closed box space;

Each station includes a work device including an upper working device disposed at a top of the case and/or a lower working device disposed at a bottom of the case, the upper working device and the lower working device being equidistant from the silk fabric;

An exhaust port is respectively disposed on two sides of the upper working device of the preheating station, and a front exhaust port and a rear air inlet are respectively disposed on two sides of the upper working device of the irradiation station; the preheating station and the irradiating device A temperature sensor and a humidity sensor are respectively arranged on the wall of the box to ensure a constant working temperature and working humidity in the box.

Further, a dip dyeing station is further disposed in front of the preheating station, the dip dyeing station includes a vertical rail and a segment guide rail, and the segment rail is slidably disposed on the vertical rail; the box of the impregnation station The body is disposed in the dip tank, and the bottom of the dip tank is provided with a stirrer.

Further, the horizontal moving device comprises a sliding block, the sliding block is spaced apart from a plurality of elastic stretching members, each elastic stretching member is connected with a spring clip, and the fabric is clamped in the spring clip; the rail comprises a rail body and a rail A rail strip is disposed on the body, and the rail body is further spaced apart from the plurality of guide slots, and the spring clip is slidably disposed in the guide slot.

Further, the working device of the preheating station is a heating device, and the heating device is an electric heating rod; the working device of the irradiation station is an ultraviolet irradiation device having a plurality of ultraviolet light emitting diode arrays or has multiple infrared illuminating devices Infrared illumination device for diode arrays.

Further, the working device of the uniform wetting station is a steam spraying device, the steam spraying device comprises a plurality of arrays of steam nozzles; the working device of the cooling station is a heat sink device (8), the heat sink device For axial flow fans.

Further, the illumination station includes a first illumination station and a second illumination station that are sequentially disposed, the second illumination station having a sleep state and a normal operation state that only maintain a constant temperature and humidity.

The purpose of drying is to dry the yam juice on the surface of the fabric to form a yellow-brown gel. The invention solves the technical problem of "the drying process is limited by manual dyeing and natural weather factors" by the following substantial techniques:

1) Integration, each station is integrated in the cabinet, and the process conditions are easy to control.

Compared with manual dyeing, from the dyeing to preheating to the irradiation to the wetting to cooling is a continuous overall space, each station has a relatively closed working space, making the process conditions of each station easy to control; The stations are in synergy with each other and immediately enter the next station from the previous station to work together.

2) Uniform, the fabric is spread out flatly, and the two sides are treated at the same time to ensure the uniformity of the fabric treatment:

Dip dyeing station, the fabric is immersed flat under the liquid level of the dyeing tank, and the uniform action of the mixer can ensure uniform dyeing;

The preheating station, the irradiation station, the uniform wetting station, and the cooling station are provided with working devices on the upper and lower sides of the fabric to ensure uniform treatment of the upper and lower surfaces of the fabric.

Especially in the irradiation station, ultraviolet radiation or infrared light is used to simulate the sunlight irradiation, but the natural irradiation always has the back surface which is not irradiated, and the upper and lower surfaces of the invention can be irradiated, thereby improving the dyeing color, chromatic aberration and surface glossiness of the crepe silk. ;

When single-sided staining, you can choose to turn on only one-sided illumination device;

The invention realizes the all-weather drying process and equipment which is not restricted by natural conditions by transforming the natural drying process into an indoor drying process by improving in integration and uniformity.

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

The invention adopts ultraviolet light or/and infrared light instead of sunlight to perform drying, and gets rid of the influence of natural factors such as weather, and can improve the production efficiency of preparing crepe silk, and shifts from 手工 绸 传统 from traditional hand-made to industrial production. The implementation conditions are provided. In addition, the present invention uses ultraviolet light or/and infrared light to dry, and the final obtained crepe silk has better gloss, color difference and color fastness, indicating that the use of ultraviolet light can greatly improve the appearance and quality of the crepe silk. In addition, the present application realizes the standardized production process of the drying process and can stably produce products conforming to the national crepe standard.

DRAWINGS

1 is a flow chart of a drying process for preparing crepe silk according to the present invention.

2 is a front view of a drying device for preparing a crepe silk fabric of the present invention.

3 is a cross-sectional view of the drying apparatus of the drying process for preparing crepe silk according to the present invention.

4 is a cross-sectional view of the G-G of the drying device for preparing a crepe silk fabric according to the present invention;

Fig. 5 is a cross-sectional view showing the enlarged structure of the horizontal moving device of the drying device for preparing the crepe silk of the present invention.

1 box, 2 exhaust, 3 heating, 5 first, 6 second, 7 steam spray, 8 heat sink, 9 temperature sensor, 10 humidity sensor, 11 fabric, 12 rail, 13 level Mobile unit, 14 dip tank, 15 vertical rails, 16-section rail

4.1 Irradiation position exhaust port, 4.2 illumination position air inlet,

5.1 first upper illumination device, 5.2 first lower illumination device,

6.1 second upper illumination device, 6.2 second lower illumination device,

7.1 steam spray device, 7.2 steam spray device,

8.1 heat sink, 8.2 heat sink

detailed description

As shown in the figure, the drying device comprises a box body 1. The two sides of the box body 1 are oppositely arranged with guide rails 12, and a horizontal moving device 13 is slidably arranged on the rails, and the fabric 11 is flat. Sandwiched in the horizontal moving device 13 on both sides. The fabric 11 is a woven or silk fabric or a plant fiber fabric or a protein fiber fabric. The box 1 comprises, in order, an infusion station H, a preheating station A, a first ultraviolet irradiation station B, a second ultraviolet irradiation station C, a uniform wetting station D, and a cooling station E. Each station has a closed cabinet space. A temperature sensor 9 and a humidity sensor 10 are respectively disposed on the wall of the preheating station A, the first ultraviolet irradiation station B and the second ultraviolet irradiation station C to ensure a suitable working temperature and working humidity in the box body. . The horizontal moving device 13 comprises a sliding block 13.1, and the sliding block 13.1 is spaced apart from a plurality of elastically extending members 13.2, each of which is connected to a spring clip 13.3. The fabric 11 is held in a spring clip 13.3. The guide rail 12 includes a guide rail body 12.1, A rail strip 12.2 is arranged on the rail body 12.1, and a plurality of guide chutes 12.3 are further spaced apart from the rail body 12.1. The spring clip 13.3 is slidably disposed in the guide chute.

The dip station H includes a vertical rail 15 and a segment rail 16 that is slidably disposed on the vertical rail 15. The tank of the impregnation station H is disposed in the dip tank 14, and the bottom of the dip tank 14 is provided with a stirrer 15 for uniformizing the dioscore juice. The dip tank 14 can be replaced by three, and different concentrations of yam juice are stored in the dip tank. When single-sided dyeing, the dip station H can also be designed as an alternative to evenly spraying the yam juice from the top. Or pay attention to control the height of the fabric when descending so that only the lower surface of the fabric contacts the yam noodle.

The preheating station A comprises a heating device 3 comprising an upper heating device 3.1 arranged at the top of the tank and a lower heating device 3.2 arranged at the bottom of the tank, said upper heating device 3.1 and the lower heating device 3.2 The distance to the silk fabric 11 is equal. An exhaust port 2 is respectively disposed on two sides of the upper heating device 3.1, and the exhaust port 2 is a front exhaust port 2.1 and a rear exhaust port 2.2, and the front exhaust port 2.1 and the rear exhaust port 2.2 For a plurality of intervals along the cross-section of the casing, the front exhaust port 2.1 and the rear exhaust port 2.2 are forced exhaust ports, and an axial flow fan is disposed therein. Preferably, the heating device 3 is an electric heating rod.

The first ultraviolet irradiation station B comprises a first illumination device 5 comprising a first upper illumination device 5.1 disposed at the top of the housing and a first lower illumination device 5.2 disposed at the bottom of the housing. The distance between the first upper illumination device 5.1 and the first lower illumination device 5.2 to the silk fabric 11 is equal. The first upper illumination device is respectively provided with an illumination position exhaust port 4.1, an illumination position air inlet port 4.2, an illumination position exhaust port 4.1, and an illumination position air inlet port 4.2 as a plurality of intervals along the cross section of the box body. . The exhaust port 4.1 before the irradiation position and the inlet port 4.2 after the irradiation position are forced exhaust ports of the internal axial fan for maintaining constant humidity and temperature in the station. Preferably, the first illumination device is an ultraviolet irradiation device having a plurality of ultraviolet light emitting diode arrays or an infrared irradiation device having a plurality of infrared light emitting diode arrays. The up and down illumination units can be individually controlled to meet single-sided dyeing needs.

The second ultraviolet irradiation station C includes a second illumination device 6 including a second upper illumination device 6.1 disposed at the top of the case and a second lower illumination device disposed at the bottom of the case Set 6.2. The distance between the second upper illuminating device 6.1 and the second lower illuminating device 6.2 to the silk fabric 11 is equal. The two sides of the second upper irradiation device are respectively provided with an irradiation port front exhaust port 4.1, an irradiation position rear air inlet port 4.2, an irradiation position before the exhaust port 4.1, and an irradiation position, and the air inlet port 4.2 is spaced along the cross section of the box body. Set multiple. The exhaust port 4.1 before the irradiation position and the inlet port 4.2 after the irradiation position are forced exhaust ports of the internal axial fan for maintaining constant humidity and temperature in the station. Preferably, the second illumination device is an ultraviolet irradiation device having a plurality of ultraviolet light emitting diode arrays or an infrared irradiation device having a plurality of infrared light emitting diode arrays. The second illumination device has a normal operating state and a sleep state that only maintains a constant temperature and humidity.

The uniform wetting station D comprises a steam spray device 7 comprising an upper steam spray device 7.1 disposed at the top of the tank and a lower steam spray device 7.2 disposed at the bottom of the tank. The distance between the upper steam spray device 7.1 and the lower steam spray device 7.2 to the fabric 11 is equal. The steam spray device 7 includes a plurality of arrays of steam showerheads.

The cooling station E includes a heat sink 8 including an upper heat sink 8.1 disposed at the top of the cabinet and a lower heat sink 8.2 disposed at the bottom of the cabinet. The distance between the upper heat sink 8.1 and the lower heat sink 8.2 to the fabric 11 is equal. The heat sink is an axial fan.

A drying process for preparing crepe silk, the fabric is silk fabric, plant fiber fabric or protein fiber fabric, comprising the steps of:

(1) dip dyeing step, fully soaking the flat fabric in the yam juice, and uniformly dyeing the fabric for at least 20 minutes;

(2) preheating step, heating from the upper and lower sides of the flat fabric by heating means for 2-3 minutes to partially evaporate the moisture of the potato mash juice on the fabric, the preheating temperature is 38 ° C ~ 42 ° C;

(3) Irradiation step, uniformly irradiating the fabric with ultraviolet rays and/or infrared rays from the upper and lower sides of the fabric at an equal distance for 10 to 15 minutes, and the ultraviolet and/or infrared irradiation intensity on the fabric is 10 to 20 μW/cm ² ;

(4) Uniform wetting step, evenly spraying steam from the upper and lower sides of the fabric to wet the fabric Wet treatment

(5) cooling step, uniformly cooling the fabric from the upper and lower sides of the fabric;

(6) Repeating the dyeing process, repeating steps (1) to (5) as needed, and repeating the number of times 10 to 20 times;

(7) Subsequent processing, silking, storage.

As shown in the figure, the specific working process of implementing the drying process by using the drying device is:

(1) The dip dyeing step, the fabric 11 is flatly clamped on the horizontal moving device 13, the horizontal moving device 13 is moved to the dip dyeing station, the agitator 15 is activated, and the segment guide rail 16 is lowered on the vertical rail 15 after 10-20 minutes. The fabric 11 is uniformly dyed for at least 20 minutes below the surface of the yam juice of the dip tank 14 at least 10-20 cm. The segment guide rail 16 is raised to interface with the guide rail 12.

(2) The preheating step moves the horizontal moving device 13 out of the dip station into the preheating station, and the preheating station that automatically controls the temperature maintains the tank at a constant temperature ranging from 38 °C to 42 °C. The fabric 11 is partially evaporated in the preheating station so that the moisture of the yam juice on the fabric is partially evaporated from the front vent 2.1 and the rear vent 2.2.

(3) The first illuminating step moves the horizontal moving device 13 out of the preheating station into the first illuminating station, and the first ultraviolet illuminating station that automatically controls the temperature maintains the box at a constant temperature, and the range of the constant temperature is 38. °C ~ 42 °C. The horizontal moving device 13 drives the fabric 11 to move between the upper and lower irradiation devices, and the irradiation device irradiates the fabric 11 with ultraviolet rays or/and infrared rays for 10 to 15 minutes, and the potato juice is solidified on the fabric 11 by ultraviolet or/and infrared irradiation. The ultraviolet or/and infrared ray irradiation intensity on the woven fabric 11 is 10 to 20 μW/cm ² . During this process, the water on the fabric 11 will continue to evaporate, and the evaporated water will be discharged through the front exhaust port 4.1, and the control device can also exchange air through the inlet port 4.2 to maintain the indoor air. Constant humidity and temperature. The up and down illumination devices can be controlled separately.

(4) a second illuminating step of moving the horizontal moving device 13 out of the first illuminating station into the second illuminating station, and automatically controlling the temperature of the first illuminating station to maintain the box at a constant temperature, the range of the constant temperature being 38 °C ~ 42 °C. The horizontal moving device 13 drives the fabric 11 to move between the upper and lower illuminating devices. The illuminating device irradiates the woven fabric 11 with ultraviolet rays or/and infrared rays for 10-15 minutes, and the yam juice is solidified on the fabric 11 by ultraviolet or/and infrared ray irradiation. The ultraviolet or/and infrared ray irradiation intensity on the woven fabric 11 is 10 to 20 μW/cm ² . During this process, the water on the fabric 11 will continue to evaporate, and the evaporated water will be discharged through the front exhaust port 4.1, and the control device can also exchange air through the inlet port 4.2 to maintain the indoor air. Constant humidity and temperature. The second illuminating step is optional. Depending on the depth of the dyeing, the second illuminating step may be omitted. Specifically, the drying device may select the second illuminating station to maintain only a constant temperature and humidity, and the illuminating device does not work. The up and down illumination devices can be controlled separately.

(5) a uniform wetting step, moving the horizontal moving device 13 out of the second irradiation station into the wetting station, the horizontal moving device 13 driving the fabric 11 to move between the upper and lower dampening devices, and opening the dampening device 7 to the fabric 11 The wetting treatment wets the fabric 30 and prevents the fabric 30 from becoming hard or brittle.

(6) The temperature lowering step moves the horizontal moving device 13 out of the wetting station into the cooling station, and the horizontal moving device 13 drives the fabric 11 to move between the upper and lower heat dissipating devices, and the heat dissipating device is turned on to force the fabric to cool down.

(7) Repeat steps (1) to (6) as needed, and repeat the number of times 10 to 20 times;

(8) Subsequent processing, silking, storage.

Example 1: The temperature in the tank in the above step (2) (3) is 38 ° C, the fabric (30) is heated between the heating device 3 for 3 minutes, and the irradiation device 7 in the step (3) is irradiated with the irradiation of the fabric 11. At a time of 10 minutes, the ultraviolet irradiation intensity on the fabric 11 was 20 μW/cm ² and the number of repetitions of the steps (1) to (5) was repeated 20 times.

Example 2: The difference compared to Example 1 was that infrared irradiation was used instead of ultraviolet irradiation.

Example 3: The difference was compared with Example 1, in that the fabric was irradiated with infrared rays and an ultraviolet lamp, and the irradiation intensity of infrared rays: the irradiation intensity of ultraviolet rays = 1:1, and the single ultraviolet irradiation was used instead of Example 1.

Example 4: The temperature in the tank in the above step (2) (3) is 42 ° C, the fabric (11) is heated between the heating device 3 for 2 minutes, and the irradiation time of the irradiating device in the step (3) is irradiated to the fabric 30. The ultraviolet irradiation intensity on the fabric 11 was 10 μW/cm ^{2 at} 15 minutes, and the number of repetitions of the steps (1) to (5) was repeated 10 times.

Example 5: The difference compared to Example 4 was that infrared irradiation was used instead of ultraviolet irradiation.

Example 6: The difference was compared with Example 4 in that the fabric was irradiated with infrared rays and an ultraviolet lamp, and the irradiation intensity of infrared rays: the irradiation intensity of ultraviolet rays = 2:1, and the alternative example 4 used single ultraviolet irradiation.

Example 7: The temperature in the tank in the above step (2) (3) is 40 ° C, the fabric (11) is heated between the heating device 3 for 2.5 minutes, and the irradiation time of the irradiating device in the step (3) is irradiated to the fabric 11 The ultraviolet irradiation intensity on the fabric 11 was 15 μW/cm ^{2 for} 12 minutes, and the number of repetitions of the steps (1) to (5) was repeated 15 times.

Example 8: The difference compared to Example 7 was that infrared irradiation was used instead of ultraviolet irradiation.

Example 9: The difference from Example 7 was that the fabric was irradiated with infrared rays and an ultraviolet lamp, and the irradiation intensity of infrared rays: the irradiation intensity of ultraviolet rays = 1.5:1, and the alternative example 7 used single ultraviolet irradiation.

Comparative test: using the same raw materials and the same batch of gauze fabric or silk fabric, using the same yam juice, the control group was using the traditional crepe silk preparation process, and the above Examples 1 to 3 were compared with the control group. It was only different from the drying process of the control group (the control group used natural sunlight). In the control group and Examples 1 to 3, 10 crepe silk fabrics of the same material and the same size were prepared, and the color, brightness and color fastness of the crepe silk were compared. The test method and inspection rules were respectively in accordance with GB. Chapters 3 and 4 of the /T15552-2007 are implemented (according to the provisions of Articles 5 and 6 of the crepe GB/T 22856-2009) and are not described in detail here.

(1) The color difference ≥ 4 is the superior product, the 3-4 grade is the first grade, and the third grade is the second grade. The color difference of the ten crepe yarns of the control group and Examples 1 to 9 is shown in Table 1 below:

Superior product

First grade

Second-class product

Control group	5	3	2
Example 1	9	1	0
Example 2	9	1	0
Example 3	10	0	0
Example 4	9	1	0
Example 5	9	1	0
Example 6	10	0	0
Example 7	9	1	0
Example 8	9	1	0
Example 9	10	0	0

Table 1 (unit: block)

It can be seen that the crepe yarns prepared in the examples 1 to 9 are relatively superior to the control group, and there is almost no color difference. Compared with the control group, the application can significantly improve the color difference grade of the crepe silk, and manufacture The crepe silk can meet the superior product standard 100% in the color difference index.

(2) Gloss evaluation criteria The crepe silk was coated with the surface gloss of one side of the yam juice. That is, the average value of the color brightness of each of the plurality of detection points of the crepe can be used as the gloss brightness of the crepe. The gloss is less than 30 for all sub-black, the gloss is semi-sub-black at 40-60, and the gloss is greater than 60 for bright black. The test results are shown in Table 2 below.

	Bright black	Semi-sub black	All black
Control group	0	3	7
Example 1	10	0	0
Example 2	10	0	0
Example 3	10	0	0
Example 4	10	0	0
Example 5	10	0	0

Example 6	10	0	0
Example 7	10	0	0
Example 8	10	1	0
Example 9	10	0	0

Table 2 (unit: block)

It can be seen from the test results of Table 2 that the crepe yarn prepared by the conventional process has a low gloss, the appearance is mostly black, and a very small amount is semi-sub-black, and the gloss of the crepe silk prepared in Example 1 - Example 9 The degree is high, all are bright black, and the bright black crepe silk is recognized as superior in the industry. In terms of glossiness, that is, only 50% of the control group superior products, and the products of Examples 1 to 9 are all superior products, the present invention can significantly improve the gloss of the crepe silk.

(3) According to the color fastness of crepe GB GB/T 22856-2009, it is divided into water fastness, soap fastness, perspiration fastness, dry rub fastness and light fastness. The water fastness, soap fastness and perspiration fastness of the superior products need to reach 3-4 grades, water fastness, soap fastness and perspiration resistance of first-class or second-class products. The color fastness should reach 3 grades, and the fast rubbing fastness of superior products, first-class products or second-class products must reach 3 grades, and the light fastness of superior products must reach 4 grades, first-class products or second-class products. The color fastness to light must reach level 3.

In the control group and the crepe yarns of each of the first to the ninth examples, the color fastness was detected, and the corresponding color fastness test results respectively satisfy the number of the superior products, as shown in Table 3:

Table 3 (unit: block)

It can be seen from the tests in Table 3 that Examples 1 to 9 have better color fastness to the control group, especially the dry rubbing fastness is significantly improved compared with the control group, and at least in Examples 1 to 9 90% of the products belong to superior products, and the rate of superior products is also significantly higher than that of the control group.

The invention realizes the all-weather drying equipment and process which is not restricted by natural conditions by transforming the natural drying process into an indoor drying process by improving in integration and uniformity.

Claims (10)

1. A drying process for preparing crepe silk, characterized in that it comprises the steps of:

   (1) the dip dyeing step, the flat fabric is fully soaked in the yam juice, and the fabric is uniformly dyed for at least 20 minutes; the fabric is a silk fabric, a plant fiber fabric or a protein fiber fabric;

   (2) preheating step, from the upper and lower sides of the flat fabric, equidistant or only one side heated by heating means for 2-3 minutes to partially evaporate the moisture of the yam juice on the fabric, the preheating temperature is 38 ° C ~ 42 ° C;

   (3) Irradiation step, uniformly irradiating the fabric from the upper and lower sides of the fabric at equal distance or only on one side by ultraviolet rays and/or infrared rays, and the irradiation time is 10 to 15 minutes, and the ultraviolet and/or infrared irradiation intensity of the surface of the fabric is 10 to 20 μW/cm ^{2 .} ;

   (4) a uniform wetting step, uniformly spraying steam from the upper and lower sides of the fabric to wet the fabric;

   (5) cooling step, uniformly cooling the fabric from the upper and lower sides of the fabric;

   (6) Repeat the dyeing, repeat steps (1) to (5) as needed, and repeat 10 to 20 times.
2. The drying process according to claim 1, wherein the irradiation time of the irradiation step is 12 minutes, and the ultraviolet irradiation intensity of the surface of the fabric is 15 μW/cm ² .
3. The drying process according to claim 1, wherein the preheating temperature is 40 °C.
4. The drying process according to claim 1, wherein the number of repetitions of the steps (1) to (5) is 15 times.
5. A drying device for preparing a crepe silk fabric according to any one of claims 1 to 4, comprising a box body (1), the two sides of the box body are oppositely arranged with a guide rail (12), on the rail The sliding device is provided with a horizontal moving device (13), and the fabric (11) is flatly sandwiched between the horizontal moving devices (13) on both sides, characterized in that

   The box comprises a preheating station (A), an irradiation station (B, C), a uniform wetting station (D), and a cooling station (E), and each station has a closed box space;

   Each station includes a work device including an upper work device disposed at the top of the case and/or a lower work device disposed at the bottom of the case, the distance between the upper work device and the lower work device to the fabric (11) equal;

   The upper working device of the preheating station (A) is respectively provided with an exhaust port (2), and the upper working device of the irradiation station (B, C) is respectively provided with a front exhaust port (4.1) and a rear air inlet (4.2); a temperature sensor (9) and a humidity sensor (10) are respectively disposed on the wall of the preheating station (A) and the irradiation station (B, C) to ensure the inside of the box Constant operating temperature and working humidity.
6. The drying device according to claim 5, characterized in that, before the preheating station (A), a dip station (H) is further provided, and the dip station (H) comprises a vertical rail (15), a segment rail (16), the segment rail (16) is slidably disposed on the vertical rail (15); the tank of the impregnation station (H) is disposed in the dip tank (14), the dip tank ( 14) A stirrer (15) is provided at the bottom.
7. A drying device according to claim 5, wherein said horizontal moving means (13) comprises a sliding block (13.1), and said sliding block (13.1) is provided with a plurality of elastically extending members (13.2) spaced apart, each The elastic expansion member (13.2) is connected to a spring clip (13.3), the fabric (11) is clamped in the spring clip (13.3); the guide rail (12) comprises a rail body (12.1), and the rail body is provided with a rail strip (12.2) A plurality of guide slots (12.3) are further spaced apart from the rail body (12.1), and the spring clips (13.3) are slidably disposed in the guide slots.
8. The drying device according to claim 5, wherein the working device of the preheating station (A) is a heating device (3), the heating device (3) is an electric heating rod; and the irradiation station ( The working device of B and C) is an ultraviolet irradiation device having a plurality of ultraviolet light emitting diode arrays or an infrared irradiation device having a plurality of infrared light emitting diode arrays.
9. The drying device according to claim 5, characterized in that the working device of the uniform wetting station (7) is a steam spraying device (7), the steam spraying device (7) comprising a plurality of arrays of steam nozzles The working device of the cooling station (E) is a heat sink (8), and the heat sink is an axial fan.
10. The drying device according to claim 5, wherein said irradiation station (B, C) The first illumination station (B) and the second illumination station (C) are sequentially disposed, and the second illumination station (C) has a sleep state and a normal operation state in which only constant temperature and humidity are maintained.

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