CN115434054A - Multicolor fiber uniform mixing processing technology - Google Patents
Multicolor fiber uniform mixing processing technology Download PDFInfo
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- CN115434054A CN115434054A CN202211332991.4A CN202211332991A CN115434054A CN 115434054 A CN115434054 A CN 115434054A CN 202211332991 A CN202211332991 A CN 202211332991A CN 115434054 A CN115434054 A CN 115434054A
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- Prior art keywords
- fiber strand
- color
- fiber
- value
- mixing
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- 239000000835 fiber Substances 0.000 title claims abstract description 85
- 238000005516 engineering process Methods 0.000 title claims abstract description 16
- 238000009987 spinning Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000010801 machine learning Methods 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
- D02G3/346—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns with coloured effects, i.e. by differential dyeing process
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention discloses a uniform mixing processing technology for multicolor fibers, which is characterized by comprising the following steps of: (1) spinning yarns: the first fiber strand and the second fiber strand keep a certain linear speed difference according to the color mixing requirement; (2) establishing a color mixing knowledge base: constructing a corresponding relation between the mixing ratio and the color characteristic value, and storing the corresponding relation into a mixed color knowledge base; (3) Installing a high-speed camera at a yarn leading-out end, extracting a color characteristic value of the yarn, and acquiring a real-time mixing ratio from stored data of a mixing knowledge base; comparing the real-time mixing ratio with the target mixing ratio to determine a deviation value; (4) If the deviation value is larger than the threshold value range, the linear speed difference of the first fiber strand and the second fiber strand is adjusted until the deviation value falls back to the threshold value range. The invention solves the problem of uniformity of multi-color fiber mixing and ensures the consistency and stability of the obtained color spun yarn.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to a uniform mixing processing technology for multicolor fibers.
Background
The color spinning is characterized in that two or more fibers with different colors are adopted for spinning, the color spinning becomes a new branch of the textile industry due to unique advantages of the color spinning, and the exploration of a special production technology of the color spinning is a demand of the industry development. The color spinning process adopts not only natural color fibers but also colored fibers, such as dyed cotton fibers or colored chemical fibers. The colored fiber and the natural fiber have different properties, the spinnability of the colored fiber after dyeing is generally reduced, and the spinnability of the colored fiber and the natural fiber is different, and the spinning process needs to be changed correspondingly.
In the prior art, in order to ensure the quality and the quality stability of the colored spun yarn, the uniformity and the consistency of multicolor fibers in the mixing and the colored spinning process need to be ensured.
Disclosure of Invention
The invention provides a uniform mixing processing technology for multicolor fibers, which solves the problem of uniformity of multicolor fiber mixing and ensures the consistency and stability of the quality control of the obtained colored spun yarns.
The invention provides a uniform mixing processing technology for multicolor fibers, which is characterized by comprising the following steps:
(1) The process flow for spinning the yarns comprises the following steps: respectively drawing the first fiber strand and the second fiber strand by adopting a drawing roller, respectively feeding the first fiber strand and the second fiber strand into an air nozzle for twisting into yarns by a tension control device and a godet roller at a certain linear speed, and finally leading out the formed yarns; the first fiber strand and the second fiber strand keep a certain linear velocity difference according to the color mixing requirement;
(2) Establishing a color mixing knowledge base: scanning a yarn sample formed by the mixing ratio of the first fiber strand and the second fiber strand to acquire a sample image, determining a color fixed characteristic value of the sample, constructing a corresponding relationship between the mixing ratio and the color characteristic value, and storing the corresponding relationship into a color mixing knowledge base;
(3) Installing a high-speed camera at a yarn leading-out end for acquiring image information in the yarn production process, extracting a color characteristic value of the image information, and acquiring a real-time mixing ratio of a first fiber strand and a second fiber strand in the yarn from stored data of a mixing knowledge base; comparing the real-time mixing ratio with the target mixing ratio to determine a deviation value;
(4) If the deviation value is less than or equal to the threshold value range, the first fiber strand and the second fiber strand are spun with the current linear velocity difference; if the deviation value is larger than the threshold value range, the linear speed difference of the first fiber strand and the second fiber strand is adjusted until the deviation value falls back to the threshold value range.
Further, the step (4) further includes establishing a corresponding relationship between the deviation value and the linear velocity difference adjustment value by machine learning, constructing a linear velocity adjustment knowledge base, and storing the linear velocity difference adjustment value corresponding to the corresponding deviation value.
Further, the high-speed camera obtains the variance values of the yarn color characteristic values obtained in the time ranges of the front t and the rear t of a certain collection point, and the mean values of the variance values of all the collection points in the interval of the front t and the rear t of the certain collection point are obtained to obtain a central value; and taking the central value as a color characteristic value, and comparing the central value with a mixed knowledge base to obtain a deviation value.
Further, the color mixture knowledge base stores a correspondence of a mixture ratio and a variance of the color characteristic value.
Furthermore, the first fiber strand adopts polyester fiber with a first color, and the second fiber strand adopts cotton fiber with a second color.
Further, the color characteristic values mainly include lightness values, chroma and chromaticity indexes.
Further, the acquisition area of the high-speed camera is 30 × 30mm.
The technical scheme of the invention at least comprises the following advantages:
(1) The processing technology for uniformly mixing the multicolor fibers can solve the problem of uniformity of the multicolor fiber mixture and ensure the consistency and stability of the obtained color spun yarns;
(2) The invention adopts the central value, can avoid the error of the collected data, and is close to the actual mixing ratio of the yarns to the maximum extent.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the following detailed description, and it should be understood that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art based on the embodiments of the present invention without any creative effort, fall within the protection scope of the present invention.
The invention relates to a multicolor fiber uniform mixing processing technology, which comprises the following steps:
(1) The process flow for spinning the yarns comprises the following steps: respectively stretching a first fiber strand and a second fiber strand by adopting a drafting roller, wherein in the embodiment, the first fiber strand adopts polyester fiber with a first color, and the second fiber strand adopts cotton fiber with a second color; the first fiber strand and the second fiber strand are respectively pulled and fed into an air nozzle through a tension control device and a godet roller at a certain linear velocity, continuously blown off and rotated along with air flow to be continuously twisted into yarn, and finally the formed yarn is led out; the first fiber strand and the second fiber strand need to keep a certain linear velocity difference, and the linear velocity difference is determined by the appearance and the color mixing effect of the mixed first fiber strand and the mixed second fiber strand;
(2) Establishing a color mixing knowledge base: scanning a yarn sample formed by mixing the first fiber strand and the second fiber strand to acquire a sample image, determining the color fixed characteristic value of the sample, mainly comprising a brightness value, a chroma, a chromaticity index and the like, constructing a corresponding relation between the mixing ratio and the color characteristic value, and storing the corresponding relation into a color mixing knowledge base;
(3) Installing a high-speed camera at a yarn leading-out end for acquiring image information in the yarn production process, extracting a color characteristic value of the image information, and acquiring a real-time mixing ratio of a first fiber strand and a second fiber strand in the yarn from stored data of a mixing knowledge base; comparing the real-time mixing ratio with the target mixing ratio to determine a deviation value;
(4) If the deviation value is less than or equal to the threshold value range, the first fiber strand and the second fiber strand are spun with the current linear velocity difference; if the deviation value is larger than the threshold value range, the linear speed difference of the first fiber strand and the second fiber strand is adjusted until the deviation value falls back to the threshold value range; meanwhile, machine learning is adopted, the corresponding relation between the deviation value and the linear velocity difference adjusting value is established, a linear velocity adjusting knowledge base is established, and the linear velocity difference adjusting value corresponding to the corresponding deviation value is stored.
Due to the fact that a high-speed camera in the yarn spinning process has certain deviation in the image acquisition process, such as complex scanning background and yarn angle, it cannot be guaranteed that the mixed appearance condition of the yarn can be reflected by the image of each frame. Therefore, the method introduces a central value concept, wherein the central value refers to a continuous process of drawing yarn images acquired by a high-speed camera, the variance value is obtained from the yarn color characteristic values acquired within the time ranges of the front t and the rear t of a certain acquisition point, and the mean value of the variance values of all acquisition points within the interval of the front t and the rear t of the certain acquisition point is the central value; and taking the central value as a color characteristic value, and comparing the central value with a mixed knowledge base to obtain a deviation value. In this way, errors in the data acquisition can be avoided, with the greatest possibility of approaching the actual mixing ratio of the yarns.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (7)
1. The multicolor fiber uniform mixing processing technology is characterized by comprising the following steps of:
(1) The process flow for spinning the yarns comprises the following steps: respectively drawing the first fiber strand and the second fiber strand by adopting a drawing roller, respectively feeding the first fiber strand and the second fiber strand into an air nozzle for twisting into yarns by a tension control device and a godet roller at a certain linear speed, and finally leading out the formed yarns; the first fiber strand and the second fiber strand keep a certain linear velocity difference according to the color mixing requirement;
(2) Establishing a color mixing knowledge base: scanning a yarn sample formed by the mixing ratio of the first fiber strand and the second fiber strand to acquire a sample image, determining a color fixed characteristic value of the sample, constructing a corresponding relationship between the mixing ratio and the color characteristic value, and storing the corresponding relationship into a mixed color knowledge base;
(3) Installing a high-speed camera at a yarn leading-out end, collecting image information in the yarn production process, extracting color characteristic values of the image information, and acquiring a real-time mixing ratio of a first fiber strand and a second fiber strand in the yarn according to stored data of a mixing knowledge base; comparing the real-time mixing ratio with the target mixing ratio to determine a deviation value;
(4) If the deviation value is less than or equal to the threshold value range, the first fiber strand and the second fiber strand are spun with the current linear velocity difference; if the deviation value is larger than the threshold value range, the linear speed difference of the first fiber strand and the second fiber strand is adjusted until the deviation value falls back to the threshold value range.
2. The multicolor fiber uniform mixing processing technology as claimed in claim 1, characterized in that: and (4) establishing a corresponding relation between the deviation value and the linear velocity difference adjustment value by adopting machine learning, constructing a linear velocity adjustment knowledge base, and storing the corresponding linear velocity difference adjustment value under the corresponding deviation value.
3. The multicolor fiber uniform mixing processing technology as claimed in claim 1, characterized in that: the high-speed camera obtains the yarn color characteristic value in the time range of the front t and the back t of a certain collection point, calculates the variance value, and calculates the mean value of the variance values of all the collection points in the interval of the front t and the back t of the certain collection point to obtain a central value; and taking the central value as a color characteristic value, and comparing the central value with a mixed knowledge base to obtain a deviation value.
4. The multicolor fiber uniform mixing processing technology as claimed in claim 3, characterized in that: the color mixing knowledge base stores the corresponding relation between the mixing ratio and the variance of the color characteristic value.
5. The multicolor fiber uniform mixing processing technology as claimed in claim 1, characterized in that: the first fiber strand adopts polyester fiber with a first color, and the second fiber strand adopts cotton fiber with a second color.
6. The multicolor fiber uniform mixing processing technology as claimed in claim 1, characterized in that: the color characteristic values mainly comprise brightness values, chroma and chromaticity indexes.
7. The multicolor fiber uniform mixing processing technology as claimed in claim 1, characterized in that: the acquisition area of the high-speed camera is 30 multiplied by 30mm.
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CN104762714A (en) * | 2015-03-27 | 2015-07-08 | 江南大学 | Yarn method and device for implementing color mixing of double-color roving through asynchronous/synchronous two-stage drafting |
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CN111501243A (en) * | 2020-05-09 | 2020-08-07 | 苏州基列德智能制造有限公司 | Spray dyeing system and method |
CN113089167A (en) * | 2021-03-16 | 2021-07-09 | 上海水星家用纺织品股份有限公司 | AI technology-based colored fiber fabric preparation method |
WO2022012088A1 (en) * | 2020-07-11 | 2022-01-20 | 江南大学 | Timing control spinning method for multi-channel ring spinning frame, and control system |
CN114742892A (en) * | 2022-04-01 | 2022-07-12 | 南通博纳纺织品有限公司 | Textile cotton blending machine control method based on image processing |
CN114972549A (en) * | 2022-05-13 | 2022-08-30 | 东华大学 | Color fiber color measuring and matching method based on global and local characteristics |
-
2022
- 2022-10-28 CN CN202211332991.4A patent/CN115434054A/en active Pending
Patent Citations (10)
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US5633722A (en) * | 1995-06-08 | 1997-05-27 | Wasinger; Eric M. | System for color and shade monitoring of fabrics or garments during processing |
CH688479A5 (en) * | 1996-04-04 | 1997-10-15 | Rieter Ag Maschf | Nub yarn manufacture is simplified, accelerated and choice broadened |
CN104762714A (en) * | 2015-03-27 | 2015-07-08 | 江南大学 | Yarn method and device for implementing color mixing of double-color roving through asynchronous/synchronous two-stage drafting |
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WO2022012088A1 (en) * | 2020-07-11 | 2022-01-20 | 江南大学 | Timing control spinning method for multi-channel ring spinning frame, and control system |
CN113089167A (en) * | 2021-03-16 | 2021-07-09 | 上海水星家用纺织品股份有限公司 | AI technology-based colored fiber fabric preparation method |
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