CN112127068A - Polylactic acid fiber cone yarn dyeing process - Google Patents
Polylactic acid fiber cone yarn dyeing process Download PDFInfo
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- CN112127068A CN112127068A CN202010905523.6A CN202010905523A CN112127068A CN 112127068 A CN112127068 A CN 112127068A CN 202010905523 A CN202010905523 A CN 202010905523A CN 112127068 A CN112127068 A CN 112127068A
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- Prior art keywords
- dyeing
- yarn
- acid fiber
- polylactic acid
- cone yarn
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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
- D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
- D06B3/09—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments as packages, e.g. cheeses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
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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
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
-
- 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
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
- D06B15/10—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by use of centrifugal force
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Abstract
The invention relates to the technical field of chemical textile processing, and discloses a polylactic acid fiber cone yarn dyeing process, which is characterized by comprising the following steps of: the method comprises the following steps: the method comprises the following steps: loosening the cylinder; step two: loading into a cage; step three: dyeing; step four: dehydrating; step five: drying; step six: and (6) rewinding. The invention ensures the dyeing performance of the lactic acid fiber at the dyeing temperature, provides the dye with the dosage of 10 percent, the dosage of the dispersing agent NNO of 1g/L, the pH value of 5, the bath ratio of 1:50, the dyeing temperature of 110 ℃, and the heat preservation time of 20min, and can achieve the best dyeing effect.
Description
Technical Field
The invention relates to the technical field of textile processing, in particular to a polylactic acid fiber cone yarn dyeing process.
Background
At present, the polylactic acid fiber is prepared by fermenting starch-containing agricultural products such as corn, wheat and beet to generate lactic acid, and then performing polycondensation and melt spinning, the polylactic acid fiber is a synthetic fiber with the raw materials of which the planting is easy and the wastes can be naturally degraded in the nature, the fabric has good hand feeling and drapability, ultraviolet resistance, lower flammability and excellent processing performance, is suitable for various fashionable dress, casual dress, sports goods, sanitary goods and the like, has wide application prospect, colored woven clothing is favored by consumers, the demand of dyed yarns for producing colored woven cloth is greatly increased, compared with hank dyeing, the cheese dyeing has the advantages of shorter process flow, low energy consumption, low fiber loss, high finished product quality, less yarn breakage and the like, has wide development prospect, and becomes the first choice of yarn dyeing production enterprises.
Factors influencing the dyeing quality of the cone yarn are many and difficult to control, quality problems such as color difference, dyeing defect, difficult dyeing and the like can be caused by slight negligence, and the produced and processed yarns are not environment-friendly, so that the design of a polylactic acid fiber cone yarn dyeing process is necessary, the PH and the heat preservation time in the prior art influence the dyeing effect, and the improvement is needed.
Disclosure of Invention
The invention aims to provide a polylactic acid fiber cone yarn dyeing process, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a polylactic acid fiber cone yarn dyeing process comprises the following steps:
the method comprises the following steps: loosening the cylinder; the blank yarns with different specifications are turned on the plastic bobbin according to the plan requirement through a loose bobbin winder, certain defects and impurities on the yarns are removed, the quality of the yarns is improved, the knots of the yarns on the bobbin are small and firm, and a larger yarn winding angle is adopted;
step two: loading into a cage; installing the loose tube yarn on a yarn rod of a yarn cage according to requirements, and fixing the loose tube yarn for dyeing;
step three: dyeing; placing the cone yarn on a cone yarn fixing frame in a cone yarn dyeing device; according to the following steps of 1: 1-50 bath ratio, namely pretreating the cone yarn by using dyeing pretreatment liquid, adding a diffusant NNO into a dyeing agent, and adjusting alkalinity;
step four: dehydrating; after the yarn dyeing processing is finished, dewatering is carried out, and the dewatering is finished by adopting a centrifugal dehydrator to run at a high speed;
step five: drying; drying the yarn dehydrated in the fourth step by adopting a high-frequency dryer, and drying the yarn by an upper heating plate and a lower heating plate; an exhaust fan is fixedly arranged at the drying rear side of the high-frequency dryer to exhaust steam;
step six: rewinding; the dyed cheese is turned over to form a well-formed cheese meeting the unwinding requirements.
In a preferred embodiment of the present invention, in the first step, a winding tension reducing device and a winding pressure reducing device are provided to reduce the winding density of the bobbin, so that the winding density of the inner and outer layers is uniform, and the loose bobbin yarn with uniform density and good formation is formed.
In a preferred embodiment of the present invention, in the third step, a dispersing agent NNO is added to the dyeing agent, and the pH of the dyeing solution is adjusted to 5, so as to ensure that the dyeing time is 20 min.
In a preferred embodiment of the present invention, in the step 4, the dewatering is performed in a centrifugal dewatering machine under the condition that the rotation speed is kept at 3000r/min for 30min.
In the third step, the dyeing temperature is ensured in the dyeing performance of the lactic acid fiber, the dye dosage is 10%, the dosage of the dispersing agent NNO is 1g/L, the pH value is 5, the bath ratio is 1:50, the dyeing temperature is 110 ℃, and the heat preservation time is 20 min.
In the third step, the dyeing is kept warm for 30min, the temperature is reduced to about 60 ℃ for reduction, and sodium hydrosulfite 3gL. soda 3gL. detergent Suwra3gL is added to wash off the loose color on the fiber and improve the dyeing wet fastness and wash the fiber.
In a preferred embodiment of the present invention, the alkalinity regulator in step three is acetic acid, and the temperature is raised to 70 ℃ after the treatment for 5 min.
In the fifth step, the drying time is 2min, and the drying temperature is 80 ℃.
Compared with the prior art, the invention has the following beneficial effects:
the method can achieve the best dyeing effect by ensuring the dyeing performance of the lactic acid fiber at the dyeing temperature, providing the dye with the dosage of 10 percent, the dosage of the dispersing agent NNO of 1g/L, the pH value of 5, the bath ratio of 1:50, the dyeing temperature of 110 ℃ and the heat preservation time of 20 min.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of the steps of the dyeing process of polylactic acid fiber cone yarn of the invention
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention; in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the present invention provides a technical solution: a polylactic acid fiber cone yarn dyeing process comprises the following steps:
the method comprises the following steps: loosening the cylinder; the blank yarns with different specifications are turned on the plastic bobbin according to the plan requirement through a loose bobbin winder, certain defects and impurities on the yarns are removed, the quality of the yarns is improved, the knots of the yarns on the bobbin are small and firm, and a larger yarn winding angle is adopted;
step two: loading into a cage; installing the loose tube yarn on a yarn rod of a yarn cage according to requirements, and fixing the loose tube yarn for dyeing;
step three: dyeing; placing the cone yarn on a cone yarn fixing frame in a cone yarn dyeing device; according to the following steps of 1: 1-50 bath ratio, namely pretreating the cone yarn by using dyeing pretreatment liquid, adding a diffusant NNO into a dyeing agent, and adjusting alkalinity;
step four: dehydrating; after the yarn dyeing processing is finished, dewatering is carried out, and the dewatering is finished by adopting a centrifugal dehydrator to run at a high speed;
step five: drying; drying the yarn dehydrated in the fourth step by adopting a high-frequency dryer, and drying the yarn by an upper heating plate and a lower heating plate; an exhaust fan is fixedly arranged at the drying rear side of the high-frequency dryer to exhaust steam;
step six: rewinding; the dyed cheese is turned over to form a well-formed cheese meeting the unwinding requirements.
In this embodiment, in the first step, a winding tension gradually-decreasing device and a winding pressure gradually-decreasing device are provided to decrease the winding density of the bobbin, so that the winding densities of the inner layer and the outer layer are uniform, and the loose bobbin yarn with uniform density and good forming is formed.
In the third step of this embodiment, a diffusing agent NNO is added to the staining agent, and the pH of the staining solution is adjusted to 5, so as to ensure that the staining time is 20 min.
In the embodiment, in the step 4, the dehydration is performed in a centrifugal dehydrator for 30min under the condition that the rotating speed is ensured to be 3000 r/min.
In the third step, the dyeing performance of the lactic acid fiber at the dyeing temperature is ensured, the dye consumption is 10%, the diffusant NNO consumption is 1g/L, the pH value is 5, the bath ratio is 1:50, the dyeing temperature is 110 ℃, and the heat preservation time is 20 min.
In the third step, the dyeing is carried out for 30min, then the temperature is reduced to about 60 ℃ for reduction, and sodium hydrosulfite 3gL. soda 3gL. detergent Suwra3gL is added to wash off the loose color on the fiber, and meanwhile, the dyeing wet fastness is improved and the fiber is washed.
In this embodiment, the alkalinity regulator in step three is acetic acid, and the temperature is raised to 70 ℃ after the treatment for 5 min.
In this embodiment, in the fifth step, the drying time is 2min, and the drying temperature is 80 ℃.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A polylactic acid fiber cone yarn dyeing process is characterized in that: the method comprises the following steps:
the method comprises the following steps: loosening the cylinder; the blank yarns with different specifications are turned on the plastic bobbin according to the plan requirement through a loose bobbin winder, certain defects and impurities on the yarns are removed, the quality of the yarns is improved, the knots of the yarns on the bobbin are small and firm, and a larger yarn winding angle is adopted;
step two: loading into a cage; installing the loose tube yarn on a yarn rod of a yarn cage according to requirements, and fixing the loose tube yarn for dyeing;
step three: dyeing; placing the cone yarn on a cone yarn fixing frame in a cone yarn dyeing device; according to the following steps of 1: 1-50 bath ratio, namely pretreating the cone yarn by using dyeing pretreatment liquid, adding a diffusant NNO into a dyeing agent, and adjusting alkalinity;
step four: dehydrating; after the yarn dyeing processing is finished, dewatering is carried out, and the dewatering is finished by adopting a centrifugal dehydrator to run at a high speed;
step five: drying; drying the yarn dehydrated in the fourth step by adopting a high-frequency dryer, and drying the yarn by an upper heating plate and a lower heating plate; an exhaust fan is fixedly arranged at the drying rear side of the high-frequency dryer to exhaust steam;
step six: rewinding; the dyed cheese is turned over to form a well-formed cheese meeting the unwinding requirements.
2. The dyeing process of the polylactic acid fiber cone yarn according to claim 1, characterized in that: in the first step, a winding tension gradually-reducing device and a winding pressure gradually-reducing device are arranged, so that the winding density of the bobbin is reduced, the winding density of the inner layer and the outer layer is uniform, and the loose bobbin yarn with consistent density and good forming is formed.
3. The dyeing process of the polylactic acid fiber cone yarn according to claim 1, characterized in that: and in the third step, a diffusant NNO is added into the dyeing agent, and the pH value of the dyeing solution is adjusted to be 5, so that the dyeing time is ensured to be 20 min.
4. The dyeing process of the polylactic acid fiber cone yarn according to claim 1, characterized in that: and in the step 4, dewatering is carried out in a centrifugal dewatering machine for 30min under the condition that the rotating speed is ensured to be 3000 r/min.
5. The dyeing process of the polylactic acid fiber cone yarn according to claim 1, characterized in that: in the third step, the dyeing performance of the lactic acid fiber at the dyeing temperature is ensured, the dye consumption is 10%, the diffusant NNO consumption is 1g/L, the pH value is 5, the bath ratio is 1:50, the dyeing temperature is 110 ℃, and the heat preservation time is 20 min.
6. The dyeing process of the polylactic acid fiber cone yarn according to claim 1, characterized in that: and in the third step, the dyeing is carried out for 30min, then the temperature is reduced to about 60 ℃ for reduction, and sodium hydrosulfite 3gL. soda 3gL. detergent Suwra3gL is added so as to wash off the loose color on the fiber, and simultaneously, the dyeing wet fastness is improved and the fiber is washed.
7. The dyeing process of the polylactic acid fiber cone yarn according to claim 1, characterized in that: and the alkalinity regulator in the third step is acetic acid, and the temperature is raised to 70 ℃ after the treatment for 5 min.
8. The dyeing process of the polylactic acid fiber cone yarn according to claim 1, characterized in that: in the fifth step, the drying time is 2min, and the drying temperature is 80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010905523.6A CN112127068A (en) | 2020-09-01 | 2020-09-01 | Polylactic acid fiber cone yarn dyeing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010905523.6A CN112127068A (en) | 2020-09-01 | 2020-09-01 | Polylactic acid fiber cone yarn dyeing process |
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| CN112127068A true CN112127068A (en) | 2020-12-25 |
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| CN202010905523.6A Pending CN112127068A (en) | 2020-09-01 | 2020-09-01 | Polylactic acid fiber cone yarn dyeing process |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003049374A (en) * | 2001-08-02 | 2003-02-21 | Unitika Textiles Ltd | Dyeing process for polylactic fiber |
| JP2005042268A (en) * | 2003-07-25 | 2005-02-17 | Nippon Techno Boon:Kk | Method for dyeing polylactic acid fiber |
| CN101270551A (en) * | 2008-04-30 | 2008-09-24 | 浙江理工大学 | Polylactic acid fibre disperse dyeing accelerant |
| CN102444036A (en) * | 2011-09-21 | 2012-05-09 | 东华大学 | Microcapsule dyeing method for polylactic acid fiber and/or polylactic acid fiber product |
| CN110184768A (en) * | 2019-05-21 | 2019-08-30 | 上海依欧实业发展有限公司 | A kind of acid fiber by polylactic cheese yarn dyeing technique |
| CN111172779A (en) * | 2020-01-11 | 2020-05-19 | 长江纺织（浙江）有限公司 | Dyeing process of polyester superfine denier fiber yarn |
-
2020
- 2020-09-01 CN CN202010905523.6A patent/CN112127068A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003049374A (en) * | 2001-08-02 | 2003-02-21 | Unitika Textiles Ltd | Dyeing process for polylactic fiber |
| JP2005042268A (en) * | 2003-07-25 | 2005-02-17 | Nippon Techno Boon:Kk | Method for dyeing polylactic acid fiber |
| CN101270551A (en) * | 2008-04-30 | 2008-09-24 | 浙江理工大学 | Polylactic acid fibre disperse dyeing accelerant |
| CN102444036A (en) * | 2011-09-21 | 2012-05-09 | 东华大学 | Microcapsule dyeing method for polylactic acid fiber and/or polylactic acid fiber product |
| CN110184768A (en) * | 2019-05-21 | 2019-08-30 | 上海依欧实业发展有限公司 | A kind of acid fiber by polylactic cheese yarn dyeing technique |
| CN111172779A (en) * | 2020-01-11 | 2020-05-19 | 长江纺织（浙江）有限公司 | Dyeing process of polyester superfine denier fiber yarn |
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Application publication date: 20201225 |