CN113136666A - Cloth finishing method - Google Patents

Cloth finishing method Download PDF

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Publication number
CN113136666A
CN113136666A CN202110484025.3A CN202110484025A CN113136666A CN 113136666 A CN113136666 A CN 113136666A CN 202110484025 A CN202110484025 A CN 202110484025A CN 113136666 A CN113136666 A CN 113136666A
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Prior art keywords
solution
finishing agent
finishing
cloth
container
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王茂龙
杨刚
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Guangdong Esquel Textiles Co Ltd
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Guangdong Esquel Textiles Co Ltd
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Priority to CN202110484025.3A priority Critical patent/CN113136666A/en
Publication of CN113136666A publication Critical patent/CN113136666A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
    • D06B3/18—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics combined with squeezing, e.g. in padding machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The invention relates to a cloth finishing method, which comprises the following steps: establishing a corresponding relation between the concentration of the solution of the finishing agent and the absorption spectrum; providing a solution of a finish in a container; obtaining the concentration and volume of a solution of the finishing agent in an initial state; passing the piece of cloth through the container, applying a solution of the finish to the piece of cloth; and after the cloth passes through the container for a period of time, testing the absorption spectrum of the solution of the finishing agent at the moment, acquiring the concentration of the solution of the finishing agent in the container through the corresponding relation, acquiring the volume of the finishing agent at the moment, calculating the concentration of the solution for supplementing the finishing agent into the container, calculating the volume of the solution for supplementing the finishing agent into the container, and supplementing the solution for supplementing the finishing agent into the container. By replenishing the solution into the container, the concentration of the solution in the container can be accurately restored to the initial level, so that quality fluctuation during cloth finishing is reduced, and the uniformity of finishing agent application on different areas of the cloth is improved.

Description

Cloth finishing method
Technical Field
The invention relates to the technical field of textile dyeing and finishing, in particular to a cloth finishing method.
Background
In textile piece goods processing, it is often necessary to apply various chemical agents to finish the piece goods to improve various aspects of the properties of the piece goods. For example, by applying a softening agent, the hand of the piece goods can be improved; by applying the resin finishing agent, the flatness of the cloth after washing can be improved; a special finishing effect may be imparted to the cloth by applying an antibacterial finishing agent or the like, and the like.
At present, the method of applying chemical reagent to finish cloth is mostly carried out by adopting a setting machine. Specifically, a chemical reagent solution with a certain concentration is prepared in a liquid rolling tank of the setting machine, and after the cloth passes through the liquid rolling tank and absorbs the solution, the cloth is rolled by a padder so that the cloth is uniformly impregnated with the solution. However, it is unknown how much chemical is adsorbed on the cloth after the rolling. The cloth finished by the setting machine has fluctuation in finishing effect in different areas.
Disclosure of Invention
In view of this, there is a need for a method of finishing cloth that reduces quality fluctuations during the finishing of the cloth and improves the uniformity of the finish applied to different areas of the cloth.
The scheme of the cloth finishing method provided by the invention is as follows:
a cloth finishing method comprises the following steps:
establishing a corresponding relation between the concentration of the solution of the finishing agent and the absorption spectrum;
providing a solution of the finish in a container;
passing a piece of cloth through the container, applying a solution of the finish to the piece of cloth;
obtaining the concentration C of the solution of the finishing agent in the initial state0And volume V0；
After the cloth passes through the container for a period of time, testing the absorption spectrum of the solution of the finishing agent at the moment, and acquiring the concentration C of the solution of the finishing agent in the container through the corresponding relation1And obtaining the volume V of the finishing agent at that time1Then, the concentration C of the solution to be supplemented with the finishing agent in the container is calculated by the formula 12Calculating the volume V of the solution to be replenished with the finishing agent in the container by the formula 22；
C2＝(C0V0-C1V1)/(V0-V1) Formula 1;
V2＝V0-V1formula 2;
replenishing the container with a solution of the finish.
Compared with the prior art, the cloth finishing method has the following beneficial effects:
based on the current production practice, the content of the finishing agent in the absorption solution of the cloth is gradually reduced in the continuous liquid squeezing process, and the proportion of water is not consistent with the initial concentration. This results in the concentration of the solution in the container varying as production progresses, resulting in head-to-tail quality differences in the cloth after treatment. Although the concentration variation can be reduced by replenishing the feed liquid in the container, there is still a problem of quality fluctuation such as head-to-tail difference in the quality of the cloth. The cloth finishing method establishes the corresponding relation between the concentration of the solution of the finishing agent and the absorption spectrum, and obtains the concentration C of the solution of the finishing agent in the initial state0And volume V0After the cloth passes through the container for a period of time, the absorption spectrum of the solution of the finishing agent at the moment is tested, and the concentration C of the solution of the finishing agent in the container is obtained through the corresponding relation1And obtaining the volume V of the finishing agent at that time1And calculating the concentration C of the solution for supplementing the finishing agent into the container according to the formulas 1 and 22And volume V2The concentration of the solution in the container can be accurately recovered to the initial level, so that the quality fluctuation of cloth finishing is reduced, and the uniformity of finishing agent applied to different areas of the cloth is improved.
In one embodiment, the establishing the correspondence between the concentration of the solution of the finishing agent and the absorption spectrum includes:
preparing solutions of the finishing agent with different concentrations, respectively testing the absorption spectrum of each solution, calculating the corresponding absorbance through the absorption spectrum, and corresponding the concentration of the solution to the absorbance one by one through a data fitting method.
In one embodiment, the solutions for preparing the finishing agents with different concentrations are prepared in a manner that the concentrations are distributed in an equal difference gradient mode.
In one embodiment, the container is replenished with the solution of the finish once every set length of travel of the piece of cloth; or
The container is replenished with the solution of the finish once per set length of travel of the piece of cloth.
In one embodiment, the set time period is 0.5min to 18 min. Further, in one embodiment, the set time period is 1min to 10 min.
In one embodiment, the set length is 30m to 500 m. Further, in one embodiment, the set length is 100m to 300 m.
The cloth finishing method of the example supplements the solution of the finishing agent into the container at regular time or fixed distance, thus, the concentration and the volume of the solution needing to be supplemented for the first time can be only calculated, so that the initial concentration and the volume of the solution of the finishing agent in the container are recovered, and in the process of each subsequent finishing stage, the concentration and the volume of the solution needing to be supplemented do not need to be calculated again because the finishing conditions are the same as those in the first stage, and only the finishing agent solution with the concentration and the volume the same as those of the first supplementing solution needs to be supplemented into the container at regular time, so that the complexity of the production process is avoided.
In one embodiment, the concentration of the solution of the finishing agent in the container in the initial state is obtained by measuring the absorption spectrum of the solution of the finishing agent in the initial state and then by the corresponding relation.
In the cloth finishing method of the above example, the concentration of the solution of the finishing agent in the container in the initial state can be more accurately determined by testing the absorption spectrum of the solution of the finishing agent in the initial state and then obtaining the concentration of the solution of the finishing agent in the container in the initial state through the correspondence.
In one embodiment, the absorption spectrum is a near infrared absorption spectrum.
In one embodiment, the finish is one or more of a soft finish, a resin finish, an antimicrobial finish, an anti-slip finish, a formaldehyde absorbent, a water repellent finish, an oil repellent finish, a resin catalyst, a soil release finish.
In one embodiment, the piece goods finishing method further comprises the step of rolling the portion of the piece goods to which the solution of the finishing agent is applied.
In one embodiment, the piece goods finishing process is performed in a setting machine.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following examples. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The cloth finishing method provided by the embodiment of the invention comprises the following steps of:
establishing a corresponding relation between the concentration of the solution of the finishing agent and the absorption spectrum;
providing a solution of a finish in a container;
obtaining the concentration C of the solution of the finishing agent in the initial state0And volume V0；
Passing the piece of cloth through a container, a solution of a finish in the container being applied to the piece of cloth;
after the cloth passes through the container for a period of time, testing the absorption spectrum of the solution of the finishing agent at the moment, and acquiring the concentration C of the solution of the finishing agent in the container according to the corresponding relation between the absorption spectrum and the concentration1And the volume V of the finish at that time is obtained1The above parameters are substituted for formula 1 to calculate the concentration C of the solution to be replenished with finish in the container2Substituting formula 2 to calculate the volume V of solution needed to replenish the finish in the container2；
C2＝(C0V0-C1V1)/(V0-V1) Formula 1;
V2＝V0-V1formula 2;
replenishing the container with a solution of the finish.
The cloth finishing method establishes the corresponding relation between the concentration of the solution of the finishing agent and the absorption spectrum, and obtains the concentration C of the solution of the finishing agent in the initial state0And volume V0After the cloth passes through the container for a period of time, the absorption spectrum of the solution of the finishing agent at the moment is tested, and the concentration C of the solution of the finishing agent in the container is obtained through the corresponding relation1And obtaining the volume V of the finishing agent at that time1And calculating the concentration C of the solution for supplementing the finishing agent into the container according to the formulas 1 and 22And volume V2The concentration of the solution in the container can be accurately recovered to the initial level, so that the quality fluctuation of cloth finishing is reduced, and the uniformity of finishing agent applied to different areas of the cloth is improved.
In one example, establishing a correspondence of the concentration of the solution of the finish to the absorption spectrum includes:
preparing solutions of finishing agents with different concentrations, respectively testing the absorption spectrum of each solution, calculating the corresponding absorbance through the absorption spectrum, and corresponding the concentration of the solution to the absorbance one by one through a data fitting method.
The cloth finishing method of the above example provides a search basis for obtaining the real-time concentration of the solution of the finishing agent by establishing the corresponding relationship between the concentration of the solution and the absorption spectrum. It should be noted that the above steps can be performed by data processing software of the spectrometer.
In one example, solutions of finishing agents of different concentrations are formulated in an arithmetic gradient of concentration.
The concentration gradient of the manner of the medium-difference gradient distribution in the cloth finishing method of the above example can be set to a sufficiently wide concentration range according to the absorption matching degree of the specific cloth material and the finishing agent, thereby ensuring the rigor and accuracy of the data fitting result in the later period.
In one example, the concentration of the solution of the finishing agent in the container in the initial state is obtained by measuring the absorption spectrum of the solution of the finishing agent in the initial state and then by the corresponding relationship.
In the cloth finishing method of the above example, the concentration of the solution of the finishing agent in the initial state can be determined more accurately by testing the absorption spectrum of the solution of the finishing agent in the initial state and then obtaining the concentration of the solution of the finishing agent in the container in the initial state through the corresponding relationship.
In one example, the container is replenished with a solution of finish once every set length of travel of the piece of cloth.
The cloth finishing method of the example supplements the solution of the finishing agent into the container for one time at regular time, so that the concentration and the volume of the solution needing to be supplemented for the first time can be calculated only, the initial concentration and the volume of the solution of the finishing agent in the container are recovered, and in the process of each stage of subsequent finishing, as the finishing conditions are the same as those in the first stage, the concentration and the volume of the solution needing to be supplemented do not need to be calculated again, and only the finishing agent solution with the concentration and the volume the same as those of the solution needing to be supplemented for the first time needs to be supplemented into the container at regular time, so that the complexity of the production process is avoided.
In one example, the set time is 0.5min to 18min, namely, the solution of the finishing agent is replenished into the container once every 0.5min to 18min of the cloth. Further, in one example, the set time period is 1min to 10 min.
In one example, the container is replenished with a solution of finish once per set length of travel of the piece of cloth.
The cloth finishing method of the above example supplements the solution of the finishing agent to the container once when the cloth advances for a set length, so that the concentration and the volume of the solution to be supplemented for the first time can be calculated only, and the solution of the finishing agent in the container recovers the initial concentration and the volume.
In one example, the set length is 30m to 500m, i.e. the solution of the finishing agent is replenished into the container once every 30m to 500m of travel of the piece of cloth. Further, in one example, the length is set to 100m to 300 m.
The cloth finishing method of the above example supplements the solution to the container at regular time or fixed distance, and can accurately restore the concentration of the solution in the container to the initial level, thereby reducing the quality fluctuation during cloth finishing and improving the uniformity of the finishing agent applied to different areas of the cloth.
In one example, the concentration of the solution of the finishing agent in the container in the initial state is obtained by measuring the absorption spectrum of the solution of the finishing agent in the initial state and then by the corresponding relationship.
In one example, the absorption spectrum is a near infrared absorption spectrum. It will be appreciated that in this example, the solution is tested using a near infrared spectrometer to obtain a near infrared absorption spectrum.
In the present invention, the kind of finishing agent is not limited, and for example, the finishing agent may be, but not limited to, a soft finishing agent, a resin finishing agent, an antibacterial finishing agent, an anti-slip agent, a formaldehyde absorbent, a water-repellent finishing agent, an oil-repellent finishing agent, a resin catalyst, a soil release finishing agent, and the like. Alternatively, the finishing agent may be one kind thereof, or may be plural kinds thereof, for example, two kinds, three kinds, and the like. The plurality of finishing agents may be finishing agents for realizing the same function or finishing agents for realizing different functions.
When the finishing agents are various, the absorption spectra of the solutions of each finishing agent under different concentrations are respectively tested, and the corresponding relation between the concentration of the solution of each finishing agent and the absorption spectra is established. During finishing, a plurality of finishing agents are prepared into a combined solution, the initial solubility and the total initial volume of each finishing agent are recorded, and the concentration of the solution to be supplemented for each finishing agent and the volume of the solution to be supplemented into the container are obtained during subsequent calculation. For example, when two kinds of finishing agents including a first finishing agent and a second finishing agent are simultaneously used to finish cloth, the absorption spectra of the solution of the first finishing agent at different concentrations are tested to establish the correspondence between the concentration of the solution of the first finishing agent and the absorption spectra, and the absorption spectra of the solution of the second finishing agent at different concentrations are tested to establish the correspondence between the concentration of the solution of the second finishing agent and the absorption spectra. And then calculating the concentration of the solution to be supplemented by the first finishing agent, the concentration of the solution to be supplemented by the second finishing agent and the volume of the combined solution to be supplemented, and preparing a supplemented solution according to the concentrations and adding the supplemented solution into the container.
The softening finish may be, but is not limited to, long chain aliphatic, silicone softeners, polysiloxane softeners, silicone softeners, and the like. The resin finish can be, but is not limited to, a urea-formaldehyde resin finish, a melamine-formaldehyde resin finish, a thiourea resin finish, an epoxy resin finish, and the like. The antibacterial finishing agent can be, but is not limited to, a nano zinc oxide antibacterial agent, a nano silver-loaded inorganic antibacterial agent, a hydroxymethyl chitosan antibacterial agent, a hydroxyethyl ether chitosan antibacterial agent and the like. In the present invention, the specific kind of the conditioning agent is not limited.
In one embodiment, the piece goods finishing method further comprises the step of rolling the portion of the piece goods to which the solution of the finishing agent is applied.
The cloth finishing method of the above example may be performed using a setting machine.
In order that the invention may be more fully understood, reference will now be made to the following examples. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
The embodiment provides a cloth surface finishing method.
In the embodiment, the pure cotton woven oxford fabric with 40-inch warp yarns, 16-inch weft yarns, 80 warp density and 48 weft density is adopted. The finishing agent is flexible finishing agent ULTRATEX STS-D, hereinafter referred to as STS. A near infrared spectrum analyzer is adopted, and the model is NIRFlex _ N500.
The cloth surface finishing method of the embodiment comprises the following steps:
step 1, preparing STS solutions with different concentrations, wherein the concentrations are respectively 20g/L, 21g/L, 22g/L and 23g/L. And testing the absorption spectrum curve of the solution with each concentration on a near infrared spectrum analyzer, inputting corresponding concentration values, and establishing a corresponding relation between the solution concentration and the absorption spectrum.
And 2, producing the large-cargo cloth by adopting 30g/L STS solution as finishing working solution, preparing initial solution, and adding the initial solution into a mangle tank. Meanwhile, a small amount of solution is extracted and tested on a near infrared spectrum analyzer, and the concentration C of the actual initial solution is calculated by the near infrared spectrum analyzer0At 30.2g/L, the volume V of the solution in the mangle tank is recorded0Is 100L.
Step 3, after the setting machine is started to produce for 300 meters, a small amount of solution is extracted and tested on a near infrared spectrum analyzer, and the concentration C of the solution in the rolling bath is calculated and obtained instantly by the near infrared spectrum analyzer133.8g/L, while recording the volume V of the solution in the bath1Is 72L.
Step 4, calculating the concentration C of the supplementing liquid2And volume V of make-up solution2The following were used:
C2＝(30.2×100-33.8×72)/(100-72)＝20.94g/L；
V2＝100-72＝28L。
and 5, preparing a supplementary solution with the concentration of 20.94g/L and the volume of 28L, and adding the supplementary solution into the mangle.
When cloth with the length of 300 meters is produced subsequently, the replenishing solution with the concentration of 20.94g/L and the volume of 28L is prepared and added into the replenishing tank.
Example 2
The embodiment provides a cloth surface finishing method.
In the embodiment, pure cotton woven oxford fabric with 40-inch warp yarns, 16-inch weft yarns, 80 warp density and 48 weft density is adopted. The finishing agent is Nikosolt 209 which is an anti-slip agent and is hereinafter referred to as 209. A near infrared spectrum analyzer is adopted, and the model is NIRFlex _ N500.
The cloth surface finishing method of the embodiment comprises the following steps:
step 1, preparing STS solutions with different concentrations, wherein the concentrations are respectively 0.5g/L, 0.8g/L, 1g/L, 1.5g/L, 2g/L, 2.5g/L and 3g/L. And testing the absorption spectrum curve of the solution with each concentration on a near infrared spectrum analyzer, inputting corresponding concentration values, and establishing a corresponding relation between the solution concentration and the absorption spectrum.
And 2, producing the large-cargo cloth by adopting 5g/L STS solution as finishing working solution, preparing initial solution, and adding the initial solution into a mangle tank. Meanwhile, a small amount of solution is extracted and tested on a near infrared spectrum analyzer, and the concentration C of the actual initial solution is calculated by the near infrared spectrum analyzer0At 4.8g/L, the volume V of the solution in the mangle tank is recorded0Is 100L.
Step 3, after the setting machine is started to produce for 100 meters, a small amount of solution is extracted and tested on a near infrared spectrum analyzer, and the concentration C of the solution in the rolling bath is calculated and obtained instantly by the near infrared spectrum analyzer15.1g/L, while recording the volume V of the solution in the bath1Is 72L.
Step 4, calculating the concentration C of the supplementing liquid2And volume V of make-up solution2The following were used:
C2＝(4.8×100-5.1×72)/(100-72)＝4.03g/L；
V2＝100-72＝28L。
and 5, preparing a supplementary solution with the concentration of 4.03g/L and the volume of 28L, and adding the supplementary solution into the mangle.
When cloth with the length of 100 meters is produced subsequently, the replenishing solution with the concentration of 4.03g/L and the volume of 28L is prepared and added into the replenishing tank.
Example 3
The embodiment provides a cloth surface finishing method.
In the embodiment, the pure cotton woven oxford fabric with 40-inch warp yarns, 16-inch weft yarns, 80 warp density and 48 weft density is adopted. The finishing agent uses an antibacterial finishing agent Reputex 20. A near infrared spectrum analyzer is adopted, and the model is NIRFlex _ N500.
The cloth surface finishing method of the embodiment comprises the following steps:
step 1, preparing Reutex 20 solutions with different concentrations, wherein the concentrations are respectively 20g/L, 21g/L, 22g/L and 23g/L. And testing the absorption spectrum curve of the solution with each concentration on a near infrared spectrum analyzer, inputting corresponding concentration values, and establishing a corresponding relation between the solution concentration and the absorption spectrum.
And 2, producing the large-cargo cloth by adopting 30g/L STS solution as finishing working solution, preparing initial solution, and adding the initial solution into a mangle tank. Meanwhile, a small amount of solution is extracted and tested on a near infrared spectrum analyzer, and the concentration C of the actual initial solution is calculated by the near infrared spectrum analyzer0At 30.8g/L, the volume V of the solution in the mangle tank is recorded0Is 100L.
Step 3, after the setting machine starts to produce for 200 meters, a small amount of solution is extracted and tested on a near infrared spectrum analyzer, and the concentration C of the solution in the rolling bath is calculated and obtained instantly by the near infrared spectrum analyzer132.6g/L, while recording the volume V of the solution in the mangle tank1Is 72L.
Step 4, calculating the concentration C of the supplementing liquid2And volume V of make-up solution2The following were used:
C2＝(30.8×100-32.6×72)/(100-72)＝26.17g/L；
V2＝100-72＝28L。
and 5, preparing a supplementary solution with the concentration of 26.17g/L and the volume of 28L, and adding the supplementary solution into the mangle.
When cloth with the length of 200 meters is produced subsequently, the replenishing solution with the concentration of 26.17g/L and the volume of 28L is prepared and added into the replenishing tank.
Example 4
The embodiment provides a cloth surface finishing method.
In the embodiment, 40-inch warp yarns are adopted,The weft yarns are 16-inch pure cotton woven oxford fabric with the warp density of 80 pieces/inch and the weft density of 48 pieces/inch. The finishing agent comprises a resin finishing agent Fixapret F-ECO (ECO for short) and a resin catalyst MgCl26H2O, hereinafter referred to as MgCl2. A near infrared spectrum analyzer is adopted, and the model is NIRFlex _ N500.
The cloth surface finishing method of the embodiment comprises the following steps:
step 1, preparing resin finishing solutions with different concentrations, ECO and MgCl2The concentration is respectively 10g/L +1g/L, 30g/L +3g/L, 50g/L +5g/L, 80g/L +8g/L, 100g/L +10g/L, 120g/L +12g/L, 150g/L +15g/L, 180g/L +18g/L, 200g/L +20g/L and 250g/L +25g/L, and the total is 10 parts of solution. And testing the absorption spectrum curve of the solution with each concentration on a near infrared spectrum analyzer, inputting corresponding concentration values, and establishing a corresponding relation between the solution concentration and the absorption spectrum.
Step 2, producing the large goods cloth by adopting 150g/L ECO and 15g/L MgCl2The solution is used as finishing working solution, initial solution is prepared and added into a mangle. Meanwhile, a small amount of solution is extracted and tested on a near infrared spectrum analyzer, and the concentration C of the actual initial solution is calculated by the near infrared spectrum analyzer0Is ECO 148.8g/L, MgCl215.1g/L, volume V of solution in the mangle tank0Is 100L.
Step 3, after the setting machine is started to produce for 100 meters, a small amount of solution is extracted and tested on a near infrared spectrum analyzer, and the concentration C of the solution in the rolling bath is calculated and obtained instantly by the near infrared spectrum analyzer1Is ECO 152.8g/L, MgCl2At 15.3g/L, while recording the volume V of the solution in the bath1Is 72L.
Step 4, calculating the concentration C of the supplementing liquid2And volume V of make-up solution2The following were used:
C2(ECO)＝(148.8×100-152.8×72)/(100-72)＝138.51g/L；
C2(MgCl2)＝(15.1×100-15.3×72)/(100-72)＝14.59g/L；
V2＝100-72＝28L。
step 5,The preparation concentration is ECO 138.51g/L, MgCl214.59g/L of make-up solution, 28L in volume, was added to the mangle.
The above concentration was made ECO 138.51g/L, MgCl for every 100m length of cloth to be produced214.59g/L of a 28L volume of make-up solution was added to the fluid replacement tank.
The cloth finishing method establishes the corresponding relation between the concentration of the solution of the finishing agent and the absorption spectrum, and obtains the concentration C of the solution of the finishing agent in the initial state0And volume V0After the cloth passes through the container for a period of time, the absorption spectrum of the solution of the finishing agent at the moment is tested, and the concentration C of the solution of the finishing agent in the container is obtained through the corresponding relation1And obtaining the volume V of the finishing agent at that time1And calculating the concentration C of the solution for supplementing the finishing agent into the container according to the formulas 1 and 22And volume V2The concentration of the solution in the container can be accurately recovered to the initial level, so that the quality fluctuation of cloth finishing is reduced, and the uniformity of finishing agent applied to different areas of the cloth is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A cloth finishing method is characterized by comprising the following steps:
establishing a corresponding relation between the concentration of the solution of the finishing agent and the absorption spectrum;
providing a solution of the finish in a container;
obtaining the concentration C of the solution of the finishing agent in the initial state0And volume V0；
Passing a piece of cloth through the container, applying a solution of the finish to the piece of cloth;
after the cloth passes through the container for a period of time, testing the absorption spectrum of the solution of the finishing agent at the moment, and acquiring the concentration C of the solution of the finishing agent in the container through the corresponding relation1And obtaining the volume V of the finishing agent at that time1Then, the concentration C of the solution to be supplemented with the finishing agent in the container is calculated by the formula 12Calculating the volume V of the solution to be replenished with the finishing agent in the container by the formula 22；
C2＝(C0V0-C1V1)/(V0-V1) Formula 1;
V2＝V0-V1formula 2;
replenishing the container with a solution of the finish.
2. The cloth finishing method of claim 1, wherein the establishing a correspondence of the concentration of the solution of the finishing agent to the absorption spectrum comprises:
preparing solutions of the finishing agent with different concentrations, respectively testing the absorption spectrum of each solution, calculating the corresponding absorbance through the absorption spectrum, and corresponding the concentration of the solution to the absorbance one by one through a data fitting method.
3. The cloth finishing method of claim 2, wherein the solutions for preparing the finishing agents with different concentrations are prepared in a manner that the concentrations are distributed in an equal difference gradient.
4. The piece goods finishing method according to claim 1, wherein the container is replenished with the solution of the finishing agent once per set length of travel of the piece goods; or the container is replenished with the solution of the finishing agent once every set length of travel of the piece of cloth.
5. The cloth finishing method according to claim 4, wherein the set time period is 0.5min to 18 min.
6. The cloth finishing method according to claim 4, wherein the set length is 30m to 500 m.
7. The cloth finishing method of any of claims 1 to 6, wherein the concentration of the solution of the finishing agent in the container in the initial state is obtained by measuring an absorption spectrum of the solution of the finishing agent in the initial state and then by the correspondence.
8. The cloth finishing method of any of claims 1 to 6, wherein the absorption spectrum is a near infrared absorption spectrum.
9. The cloth finishing method of any of claims 1 to 6, wherein the finishing agent is one or more of a soft finishing agent, a resin finishing agent, an antibacterial finishing agent, an anti-slip agent, a formaldehyde absorbent, a waterproof finishing agent, an oil repellent finishing agent, a resin catalyst, and a soil release finishing agent.
10. The piece goods finishing method according to any one of claims 1 to 6, further comprising a step of rolling a portion of the piece goods to which the solution of the finishing agent is applied.
CN202110484025.3A 2021-04-30 2021-04-30 Cloth finishing method Pending CN113136666A (en)

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Application publication date: 20210720