Method for prejudging yarn dyeing performance, electronic device and storage medium

Patent metadata

Field	Value
Publication number	US-2025207324-A1
Application number	US-202418956134-A
Country	US
Kind code	A1
Filing date	Nov 22, 2024
Priority date	Dec 21, 2023
Publication date	Jun 26, 2025
Grant date	—

Abstract

Provided is a method for prejudging yarn dyeing performance, an electronic device and a computer-readable storage medium. The method includes: determining a yarn normally dyed for a yarn to be judged; performing spectral detection on the yarn normally dyed to obtain first spectral information; calculating a covariance by simulation through a Gaussian process kernel; obtaining a plurality of pieces of continuous second spectrum information for the yarn to be judged, and establishing a Gaussian process regression model; obtaining third spectrum information for a yarn to be detected; performing a subtraction operation on the third spectral information and the second spectral information; and judging the yarn dyeing performance according to a matrix value obtained by the subtraction operation.

First claim

What is claimed is:

1 . A method for prejudging yarn dyeing performance, comprising:
determining a yarn sample normally dyed in a same batch for a yarn sample to be judged; performing spectral detection on the yarn sample normally dyed in the same batch to obtain first spectral information [x i , y i ], wherein x i is a wave number sampling value, y i is a spectral information intensity, and i is a natural number from 1 to 400; calculating a covariance by simulation through a Gaussian process kernel (RBF Kernel) of a following calculation formula I based on the first spectral information:

k
=

σ
2

⁢
exp
⁢

(

-



t
m

-

t
n



2

2
⁢

l
2

)

(
I
)

wherein σ is 0.5, 1 is 1.0, t m corresponds to a value of y i when i=m, t n corresponds to a value of y i when i=n, and m and n are natural numbers from 1 to 400 respectively;

obtaining a plurality of pieces of continuous second spectral information [x j , y j ] for a yarn sample in a batch to be judged with a wave number sampling step, and establishing a Gaussian process regression model according to the covariance, wherein the plurality of pieces of continuous second spectral information [x j , y j ] is a 2×N 1 matrix, wherein j=1, 2, . . . , N 1 , and N 1 is a sampling number of the yarn sample in the batch to be judged and is a natural number greater than 200;
obtaining third spectrum information [a j , b j ] for a yarn sample to be detected, wherein the third spectrum information [a j , b j ] is a 2×N 2 matrix, N 2 is a sampling number of the yarn sample to be detected, and N 2 is equal to N 1 ;
performing a subtraction operation on the 2×N 2 matrix of the third spectral information [a j , b j ] and the 2×N 1 matrix of the second spectral information [x j , y j ] to obtain a 2×N 3 matrix [u j , v j ], wherein N 3 is equal to N 1 and N 2 ; and
judging dyeing performance of the yarn sample to be detected according to a value of v j .

2 . The method of claim 1 , wherein the judging the dyeing performance of the yarn sample to be detected according to the value of v j comprises: when the value of v j is within an interval [−0.01, 0.01], judging that the yarn sample to be detected is normally dyed; or, when the value of v j is greater than 0.01, judging that the yarn sample to be detected is darkly dyed; or, when the value of v j is less than −0.01, judging that the yarn sample to be detected is lightly dyed.

3 . The method of claim 1 , wherein the spectrum adopts Raman spectrum.

4 . The method of claim 1 , wherein the wave number sampling step is 2 to 10 cm −1 and the sampling number is 200 to 400 in the step of establishing the Gaussian process regression model.

5 . The method of claim 4 , wherein when the wave number sampling step is 10 cm −1 , the sampling number N is 200; or when the wave number sampling step is 5 cm −1 , the sampling number N is 400.

6 . The method of claim 1 , wherein the yarn sample normally dyed in the same batch is manually judged by using the yarn sample to be judged through a hosiery dyeing method comprising garter knitting, dyeing and color judgment.

7 . The method of claim 1 , wherein the yarn is selected from partially oriented yarns, fully drawn yarns and draw textured yarns.

8 . An electronic device, comprising:
at least one processing unit; and a storage unit in signal communication with the at least one processing unit; wherein the storage unit stores an instruction executable by the at least one processing unit, to enable the at least one processing unit to execute: determining a yarn sample normally dyed in a same batch for a yarn sample to be judged; performing spectral detection on the yarn sample normally dyed in the same batch to obtain first spectral information [x i , y i ], wherein x i is a wave number sampling value, y i is a spectral information intensity, and i is a natural number from 1 to 400; calculating a covariance by simulation through a Gaussian process kernel (RBF Kernel) of a following calculation formula I based on the first spectral information:

k
=

σ
2

⁢
exp
⁢

(

-



t
m

-

t
n



2

2
⁢

l
2

)

(
I
)

wherein σ is 0.5, 1 is 1.0, t m corresponds to a value of y i when i=m, t n corresponds to a value of y i when i=n, and m and n are natural numbers from 1 to 400 respectively;

ob

Assignees

• Zhejiang Hengyi Petrochemical Co Ltd

Inventors

• Wang Peng
• Peng Xiantao
• Qiu Yibo
• Liu Mingyi
• Wang Dandan
• Jin Junliang
• Shen Jun
• Wu Xuan

Classifications

• G01N33/365

  Filiform textiles, e.g. yarns · CPC title

• G01N21/8915

  non-woven textile material · CPC title

• D06P1/0032 Primary

  Determining dye recipes and dyeing parameters; Colour matching or monitoring · CPC title

• G01N21/65 Primary

  Raman scattering · CPC title