CN104674538A - Rapid non-alkali scouring and bleaching, cleaning, dyeing and finishing process for cotton knitted fabric - Google Patents
Rapid non-alkali scouring and bleaching, cleaning, dyeing and finishing process for cotton knitted fabric Download PDFInfo
- Publication number
- CN104674538A CN104674538A CN201510078985.4A CN201510078985A CN104674538A CN 104674538 A CN104674538 A CN 104674538A CN 201510078985 A CN201510078985 A CN 201510078985A CN 104674538 A CN104674538 A CN 104674538A
- Authority
- CN
- China
- Prior art keywords
- bleaching
- free
- cotton
- activator
- scouringed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Detergent Compositions (AREA)
- Coloring (AREA)
Abstract
The invention provides a rapid non-alkali scouring and bleaching, cleaning, dyeing and finishing process for a cotton knitted fabric. The process is characterized by comprising the following steps: scouring and bleaching; deoxidizing; washing with water; and dyeing, wherein scouring and bleaching are carried out under a faintly acid or neutral condition; hydrogen peroxide is activated through an activating agent. With the adoption of the process, a plurality of water washing and neutralizing processes can be saved; the processes are decreased; water can be saved; the wastewater pollution degree is particularly greatly reduced; the COD is reduced by more than 10 times that of the traditional process; the process is particularly suitable for preprocessing of high-count, high-density, thick and heavy pure cotton knitted fabrics; the clean production process is completely met; the process is worthy of popularization.
Description
Technical field
The present invention relates to a kind of dyeing and finishing technology, particularly, relate to a kind of cotton knitting quick alkali-free and to scouring and bleaching clean dyeing and finishing technology.
Background technology
At present, in the dyeing and finishing process of cotton fiber, yarn, fabric, use a large amount of alkaline agents, traditional technique: cotton pre-treatment hydrogen peroxide adds the chemical agent such as alkaline agent and surfactant and scourings and bleaching, and these alkaline agents have soda ash (Na
2cO
3), caustic soda (NaOH), sodium bicarbonate (NaHCO
3).
But the use of a large amount of alkali, the waste water environmental pollution produced comparatively seriously contaminates, and needs the huge cost of consumption to neutralize for alkali, and the cost needing natural environment huge is degraded.
In addition, in order to ensure effect of scouringing and bleaching, need to act on for a long time through high temperature, need a large amount of washings and neutralization could ensure Color by near for the pH value of working solution less than 8.0 after scouringing and bleaching, cause technique water consumption large like this, blowdown is very serious.
In addition, traditional Scouring and bleaching process through 98 DEG C of tradition scouring and bleaching → 90 DEG C washing → 60 DEG C of washing → neutralization → deoxygenation → washing poststainings.Whole technical process often must through at least five steps, causes the multiple wastes such as equipment, artificial, time, the energy.
Summary of the invention
The present invention is intended to overcome above-mentioned defect, provides a kind of cotton knitting quick alkali-free to scouring and bleaching clean dyeing and finishing technology.
The quick Scouring and bleaching process of the present invention's ingenious employing alkali-free, uses special catalyst activator activating hydrogen peroxide to improve bleaching effect, realizes cotton knitting alkali-free and exempt to neutralize the object of scouringing and bleaching fast, effectively can carry out alkali-free cleaner production.
Particularly, a kind of cotton knitting quick alkali-free provided by the invention is scouringed and bleaching clean dyeing and finishing technology, it is characterized in that: by scouringing and bleaching, deoxygenation, washing poststaining operation form; Above-mentioned process of scouringing and bleaching is carried out, by activator by Activation of Hydrogen Peroxide Solution under faintly acid or neutrallty condition.
Wherein, above-mentioned activator comprises the sodium alginate accounting for activator gross weight 1-99%;
The pH value of above-mentioned activator is preferably 3.5-4.2;
The composition of one or more in the nonanoyloxybenzene sulfonate of 1-99%, caustic soda, ethylenediamine phosphate, phosphoric acid propane diamine, dimethylbenzene, prodan, ammonium sulfate, ammonium chloride, ferrous sulfate, ammonium hydroxide, cationic surfactant, anion surfactant, amphoteric surfactant, non-ionic surface active agent, water can also be contained in above-mentioned activator;
In above-mentioned activator, the mass ratio of sodium alginate and other component is preferably 1:0.1-1.2;
Above-mentioned activator most preferably is CHT activator FBA.
In addition, above-mentioned in the process of scouringing and bleaching, ealkaline buffer can also be added;
Above-mentioned ealkaline buffer preferably from pH be the ealkaline buffer of 9.3-10.8;
Above-mentioned ealkaline buffer most preferably is CHT buffer FBA;
The mass ratio of above-mentioned activator and ealkaline buffer is preferably 1:0.1-5;
Above-mentioned ealkaline buffer can be selected from the similar buffer solution system such as phosphate buffer, borate buffer solution, ammoniacal liquor-ammonium chloride buffer solution.
In addition, present invention also offers the knitting quick alkali-free of above-mentioned cotton and to scouring and bleaching clean dyeing and finishing technology, its concrete technology step is as follows:
Step one, in container, determine water and enter cloth, at room temperature add activator and degreaser respectively;
In above-mentioned steps one, container is that tradition is scouringed and bleaching with equipment;
Determining the bath raio that water enters cloth is 1:10-15, runs 6-15 minute after adding mentioned reagent;
The consumption of above-mentioned activator is preferably 2.0-5.0g/L;
The consumption of above-mentioned degreaser is preferably 0.2-0.8g/L;
When needing to add ealkaline buffer, the mass ratio of above-mentioned activator and ealkaline buffer is 1:0.5-1.5, most preferably is 1:1;
Most preferred addition manner is for adding in container after being mixed with ealkaline buffer by above-mentioned activator again, and this process is preferably cryogenic conditions (namely, carrying out under the condition of less than 40 DEG C).
Step 2, add hydrogen peroxide; This process should add separately.
In above-mentioned steps two, the hydrogen peroxide of above-mentioned hydrogen peroxide to be mass concentration be 25-35%, its consumption be the 1-1.5 of activator level doubly, be preferably 5.0-10.0g/L;
Preferably 3-10 minute is run after adding above-mentioned hydrogen peroxide.
Step 3, be warming up to 90 DEG C, insulation 20-40 minute;
It is worthy of note, hydrogen peroxide carries out the process heated again after adding;
In above-mentioned steps three, the speed of intensification is 2-5 DEG C/min, most preferably is 1-2 DEG C/min;
Step 4, be cooled to less than 70 DEG C, draining;
In above-mentioned steps four, the speed of cooling is 2-5 DEG C/min, most preferably is 2-3 DEG C/min.
Step 5, be warming up to 30-40 DEG C, add except oxygenase, be incubated draining after 10-30 minute;
The above-mentioned consumption except oxygenase is 0.2-0.5g/L.
Step 6, wash poststaining at least one times.
effect of the present invention:
The invention provides a kind of cotton knitting quick alkali-free to scouring and bleaching dyeing and finishing technology, save in multiple tracks washing and operation, shortened process, conserve water, particularly contaminated wastewater degree reduces greatly, and its COD value will reduce by more than 10 times than traditional handicraft, the special pre-treatment be applicable to containing the heavy thick and heavy pure cotton fabric of high-count and high-density of slurry, meet process for cleanly preparing completely, be worthy to be popularized.
Particularly, scouring and bleaching in process for cleanly preparing at the knitting quick alkali-free of cotton of the present invention, this activator can catalysis and improve the hydrogen peroxide ability of bleaching under low temperature, weak acid or neutrallty condition, and routine needs to activate in the basic conditions.
In addition, this type of activator that the present invention relates to, its main component is sodium alginate, after composite with other component, there is good wetting and emulsifiability, cotton fiber degreasing, paraffin removal are had certain effect, and good to the hardness ions of conventional amount used, acid and alkaline stability, more can not affect the phenomenons such as generation frost because of external environment, thus avoid unnecessary energy loss in use occurs.
And for heat and the fabric of alkali sensitivity, activator and the composite system of buffer can be used to carry out the operation of scouringing and bleaching, in this system, buffer can coordinate activator it acts on to hydrogen peroxide, can be used for the ph stability of steady operation liquid.
In addition, adding of this buffer can not only reduce the damage of purificant to fabric fibre, improves the whiteness after fabric rinsing, at low temperature and can also complete the operation of scouringing and bleaching in the short period, so realize saving time, the effect of energy-conservation, clean environment firendly.
In addition, it is worthy of note, when using process conditions of the present invention, for the fabric not being suitable for hydrogen peroxide bleaching process in traditional handicraft, also can carry out the whitening procedure of hydrogen peroxide under this condition.
Namely, 90 DEG C of → deoxygenation → washing poststainings of scouringing and bleaching fast in addition, as can be seen from the quick Scouring and bleaching process step of alkali-free of the present invention, only need can complete whole process of scouringing and bleaching through following operation.
By adjusting known with the process ration and cost etc. of tradition at least five-step approach, 90 DEG C of quick Scouring and bleaching process of alkali-free provided by the invention can save twice washing with together with neutralize, technique shortening consuming time 30-40%, water consumption reduces about 60%, reduces 20-30% than traditional handicraft power consumption and air consumption.
And knitted fabric is after processing scouringed and bleaching fast by alkali-free, raffinate pH value can control at 7.0-8.0, and whiteness value reaches 60-70%, and 30min capillary effect value reaches more than 7.0.
In sum, quick alkali-free of the present invention is scouringed and bleaching production technology, by adopting suitable processing technology, and the process technology coordinating corresponding auxiliary agent to realize cotton knitting alkali-free to exempt to neutralize and scouring and bleaching fast.
Through repetition test research and optimization, show that related auxiliaries obtains suitable amounts and process conditions, make the pH value of working solution after scouringing and bleaching between 7-8, directly the processing such as deoxygenation, polishing, dyeing can be carried out after discharge opeing, achieve shortened process, conserve water, reduce the object of sewage discharge.
Specific embodiment
Embodiment one,
1. the two yarn+40STK/1 drawn needle double-sided cloth of fabric: 20STK
2. alkali-free Scouring and bleaching process is filled a prescription and condition fast:
A. scouring and bleaching bath raio: 1:10, determines water level and enter cloth.Normal temperature adds oil removing spirit DM-1130 0.6g/L respectively, and CHT activator FBA and each 4.0g/L of CHT buffer FBA, first pours into after secondary cylinder stirs and slowly add;
B. high temperature is scouringed and bleaching: adjuvant usedly add rear operation 6min, slowly adds 35% hydrogen peroxide 10.0g/L, runs 3min and is warmed up to 90 DEG C with 2 DEG C per minute, be incubated 40 minutes, cool to 70 DEG C, direct draining with 3 DEG C per minute;
C. deoxygenation: be warming up to 40 DEG C and add except oxygenase KAT 0.5g/L, be incubated 10 minutes, be incubated complete direct draining, wash water 1 time, dyeing;
D. points for attention: CHT activator FBA and CHT buffer FBA uses identical amount just can reach activating hydrogen peroxide bleaching optimum efficiency in scouringing and bleaching and bathing; Hydrogen peroxide needs finally to add separately to heat up again, avoids adding influence effect with activator simultaneously.
3. to scouring and bleaching effect assessment
Method of testing is pressed:
Raffinate pH value METTLER-TOLEDO SevenEasy type of scouringing and bleaching desk-top PH measurement examination;
Whiteness value HunterLab ColorQues t XE spectrophotometric color measurement instrument measures;
Capillary effect is pressed FZ/T 01071-1999 " textiles capillary effect test method " and is measured.
After using quick alkali-free Scouring and bleaching process, after scouringing and bleaching, raffinate pH value can control 7.8, and whiteness value reaches 68%, 30min capillary effect value and reaches more than 7.6, considerably reduce water power vapour consumption than traditional handicraft simultaneously and technique consuming time.
Embodiment two,
1. fabric: 32STK/1SZ+10S/C twill left to right is plucking flannelette not
2. alkali-free Scouring and bleaching process is filled a prescription and condition fast:
A. scouring and bleaching bath raio: 1:15, determines water level and enter cloth.Normal temperature adds oil removing spirit DM-1130 0.4g/L respectively, and CHT activator FBA and each 2.5g/L of CHT buffer FBA, first pours into after secondary cylinder stirs and slowly add;
B. high temperature is scouringed and bleaching: adjuvant usedly add rear operation 6min, slowly adds 35% hydrogen peroxide 8.0g/L, runs 3min and is warmed up to 90 DEG C with 2 DEG C per minute, be incubated 30 minutes, cool to 70 DEG C, direct draining with 3 DEG C per minute;
C. deoxygenation: be warming up to 40 DEG C and add except oxygenase KAT 0.3g/L, be incubated 10 minutes, be incubated complete direct draining, wash water 1 time, dyeing;
D. points for attention: CHT activator FBA and CHT buffer FBA uses identical amount just can reach activating hydrogen peroxide bleaching optimum efficiency in scouringing and bleaching and bathing; Hydrogen peroxide needs finally to add separately to heat up again, avoids adding influence effect with activator simultaneously.
3. to scouring and bleaching effect assessment
Method of testing is pressed:
Raffinate pH value METTLER-TOLEDO SevenEasy type of scouringing and bleaching desk-top PH measurement examination;
Whiteness value HunterLab ColorQues t XE spectrophotometric color measurement instrument measures;
Capillary effect is pressed FZ/T 01071-1999 " textiles capillary effect test method " and is measured.
After using quick alkali-free Scouring and bleaching process, after scouringing and bleaching, raffinate pH value can control 7.8, and whiteness value reaches 68%, 30min capillary effect value and reaches more than 7.6, considerably reduce water power vapour consumption than traditional handicraft simultaneously and technique consuming time.
In above-described embodiment one and two, degreaser also can be selected from other auxiliary agent that deoils for textile finishing link such as ZJ-CH13, GL-DOW-168, SL-1, JD-9436, LD-100C; Its consumption can also be the different proportions such as 0.2g/L, 0.4g/L, 0.6g/L, 0.8g/L;
Activator also can be selected from the activator component containing sodium alginate such as sodium alginate/water (99/1 or 1/99), DM-1430/ sodium alginate (10/90), sodium alginate/TBCC (50/50), sodium alginate/oxalic acid/NOBS (10/50/40), sodium alginate/APEO/ water/oxalic acid (35/15/45/5); Its consumption can also be the different proportions such as 2g/L, 2.5g/L, 3g/L, 3.5g/L, 4g/L, 4.5g/L, 5g/L;
Buffer also can be selected from pH between 9-11 as buffer solution systems such as phosphate buffer, borate buffer solution, ammoniacal liquor-ammonium chloride buffer solution; Its consumption can also be the different proportions such as 2g/L, 2.5g/L, 3g/L, 3.5g/L, 4g/L, 4.5g/L, 5g/L;
35%H
20
2consumption be the different proportions such as 5.0g/L, 6.5g/L, 7.0g/L, 7.5g/L, 8.5g/L, 9.5g/L, 10g/L;
Except oxygenase also can be selected from, DM-8697, YZ-702, CY--50, BY-50000 etc. are conventional removes oxygenase series, and its consumption can also be the different proportions such as 0.2g/L, 0.3g/L, 0.4g/L, 0.5g/L.
Claims (10)
1. the knitting quick alkali-free of cotton is scouringed and bleaching a clean dyeing and finishing technology, it is characterized in that: by scouringing and bleaching, deoxygenation, washing poststaining operation form;
Wherein, described in, process of scouringing and bleaching is carried out, by activator by Activation of Hydrogen Peroxide Solution under faintly acid or neutrallty condition.
2. knitting quick alkali-free as claimed in claim 1 a kind of cotton is scouringed and bleaching clean dyeing and finishing technology, it is characterized in that: described activator comprises the sodium alginate accounting for activator gross weight 1-99%.
3. knitting quick alkali-free as claimed in claim 1 a kind of cotton is scouringed and bleaching clean dyeing and finishing technology, it is characterized in that: described activator is CHT activator FBA.
4. knitting quick alkali-free as claimed in claim 1 a kind of cotton is scouringed and bleaching clean dyeing and finishing technology, and it is characterized in that, concrete technology step is as follows:
Step one, in container, determine water and enter cloth, at room temperature add activator and degreaser respectively;
Step 2, add hydrogen peroxide;
Step 3, be warming up to 90 DEG C, insulation 20-40 minute;
Step 4, be cooled to less than 70 DEG C, draining;
Step 5, be warming up to 30-40 DEG C, add except oxygenase, be incubated draining after 10-30 minute;
Step 6, wash poststaining at least one times.
5. knitting quick alkali-free as claimed in claim 4 a kind of cotton is scouringed and bleaching clean dyeing and finishing technology, it is characterized in that: the consumption of described activator is 2.0-5.0g/L;
The consumption of described degreaser is 0.2-0.8g/L;
The hydrogen peroxide of described hydrogen peroxide to be mass concentration be 25-35%, its consumption is 5.0-10.0g/L;
The described consumption except oxygenase is 0.2-0.5g/L.
6. knitting quick alkali-free as claimed in claim 4 a kind of cotton is scouringed and bleaching clean dyeing and finishing technology, it is characterized in that:
In step one, determining the bath raio that water enters cloth is 1:10-15, runs 6-15 minute after adding all reagent;
In step 2, after adding hydrogen peroxide, run 3-10 minute;
In step 3, the speed of intensification is 1-2 DEG C/min;
In step 4, the speed of cooling is 2-3 DEG C/min.
7. the cotton knitting quick alkali-free of the one as described in as arbitrary in claim 1-5 is scouringed and bleaching clean dyeing and finishing technology, it is characterized in that:
In the process of scouringing and bleaching, ealkaline buffer can also be added;
The mass ratio of described activator and ealkaline buffer is 1:0.1-5.
8. knitting quick alkali-free as claimed in claim 6 a kind of cotton is scouringed and bleaching clean dyeing and finishing technology, it is characterized in that: described ealkaline buffer is CHT buffer FBA.
9. knitting quick alkali-free as claimed in claim 6 a kind of cotton is scouringed and bleaching clean dyeing and finishing technology, it is characterized in that: the mass ratio of described activator and ealkaline buffer is 1:1.
10. knitting quick alkali-free as claimed in claim 6 a kind of cotton is scouringed and bleaching clean dyeing and finishing technology, it is characterized in that: add in container after described activator mixes with ealkaline buffer again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078985.4A CN104674538B (en) | 2015-02-13 | 2015-02-13 | A kind of cotton knitting quick alkali-free is scouringed and bleaching cleaning dyeing and finishing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078985.4A CN104674538B (en) | 2015-02-13 | 2015-02-13 | A kind of cotton knitting quick alkali-free is scouringed and bleaching cleaning dyeing and finishing technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104674538A true CN104674538A (en) | 2015-06-03 |
| CN104674538B CN104674538B (en) | 2016-11-02 |
Family
ID=53310088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510078985.4A Active CN104674538B (en) | 2015-02-13 | 2015-02-13 | A kind of cotton knitting quick alkali-free is scouringed and bleaching cleaning dyeing and finishing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104674538B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105177981A (en) * | 2015-09-23 | 2015-12-23 | 博森织染（嘉兴）有限公司 | Low-temperature bleaching pretreatment process of cotton and wool fabric |
| CN105369581A (en) * | 2015-11-04 | 2016-03-02 | 泉州市新宏化工贸易有限公司 | Deoxygenization technology adopted after cotton fabric scouring and bleaching and cotton cleaning agent |
| CN107675527A (en) * | 2017-09-06 | 2018-02-09 | 浙江弘盛纺织科技有限公司 | A kind of acrylic fibers, polyamide fibre mix the dyeing of knitted fabric |
| CN110735334A (en) * | 2019-10-16 | 2020-01-31 | 花法科技有限公司 | Continuous production process for printing and dyeing pretreatment of polyamide-spandex blended fabrics |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194907A (en) * | 2013-03-13 | 2013-07-10 | 上海嘉乐股份有限公司 | Pretreatment process for cotton knitted fabric low-temperature scouring and bleaching one bath two steps and washing deoxygenation one bath one step method |
-
2015
- 2015-02-13 CN CN201510078985.4A patent/CN104674538B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194907A (en) * | 2013-03-13 | 2013-07-10 | 上海嘉乐股份有限公司 | Pretreatment process for cotton knitted fabric low-temperature scouring and bleaching one bath two steps and washing deoxygenation one bath one step method |
Non-Patent Citations (1)
| Title |
|---|
| 李卓: "新助剂指南（一）", 《国外纺织技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105177981A (en) * | 2015-09-23 | 2015-12-23 | 博森织染（嘉兴）有限公司 | Low-temperature bleaching pretreatment process of cotton and wool fabric |
| CN105369581A (en) * | 2015-11-04 | 2016-03-02 | 泉州市新宏化工贸易有限公司 | Deoxygenization technology adopted after cotton fabric scouring and bleaching and cotton cleaning agent |
| CN107675527A (en) * | 2017-09-06 | 2018-02-09 | 浙江弘盛纺织科技有限公司 | A kind of acrylic fibers, polyamide fibre mix the dyeing of knitted fabric |
| CN110735334A (en) * | 2019-10-16 | 2020-01-31 | 花法科技有限公司 | Continuous production process for printing and dyeing pretreatment of polyamide-spandex blended fabrics |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104674538B (en) | 2016-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101487183B (en) | Method for environment-friendly low-temperature scouring and bleaching in spinning dyeing and finishing | |
| CN104099788B (en) | Eco-friendly cotton fabric dyeing process | |
| CN102392371B (en) | Method for dyeing fabric containing polyester fiber and cotton fiber | |
| CN101845744A (en) | Low-temperature scouring and bleaching assistant and preparation method and application thereof | |
| CN101914848B (en) | Pre-treatment auxiliary agent for cotton knitted fabrics, preparation method and application thereof | |
| CN104674538A (en) | Rapid non-alkali scouring and bleaching, cleaning, dyeing and finishing process for cotton knitted fabric | |
| CN104264491B (en) | A kind of cotton fabrics one bathes low-temperature refining, bleaching and surface cleaning processing method | |
| CN102720056B (en) | Low-temperature scouring agent as well as preparation method and application thereof | |
| CN102505503A (en) | Pre-processing, polishing and dyeing one-bath process for cotton knitted fabric | |
| CN102704259A (en) | Low-temperature scouring and bleaching agent and application thereof | |
| CN106884338A (en) | A kind of dyeing technique of cotton knitwear | |
| CN105803799A (en) | Rope-form pretreatment process based on low-alkaline scouring agent | |
| CN102965982A (en) | Deoxidizing and polishing one-bath process dyeing of polyester cotton knitted fabric | |
| CN105220543A (en) | Fabric containing viscose and nylon fibre is carried out to the method for one-bath process | |
| CN102877313B (en) | Ultralow bath ratio beam dyeing method | |
| CN104420362A (en) | Bamboo fiber dyeing technology | |
| CN102392343B (en) | Pretreatment and bath-treatment method for modifying cotton fabrics | |
| CN102220702A (en) | Integrated technology for preprocessing and dying knitted fabric | |
| CN102926234A (en) | Activated dye accelerating agent and dyeing method | |
| CN104947469A (en) | One-bath bleaching and dyeing treatment process for dyed polyester-cotton twill fabric | |
| CN108103805A (en) | A kind of looped fabric gas-liquid environmental protection bleaching and dyeing method | |
| CN101798746B (en) | Energy-saving scouring and bleaching method | |
| CN101349003B (en) | Knitting facing sectional type bleaching and dyeing process | |
| CN103173994A (en) | Co-bath treatment method for modification pretreatment of fabric | |
| CN102517871A (en) | Dyeing processing technology for polyester cotton knitted fabric |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A fast alkali free scouring and bleaching clean dyeing and finishing process for cotton knitting Effective date of registration: 20211115 Granted publication date: 20161102 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch Pledgor: SHANGHAI JIALE Co.,Ltd. Registration number: Y2021310000100 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220621 Granted publication date: 20161102 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch Pledgor: SHANGHAI JIALE Co.,Ltd. Registration number: Y2021310000100 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A fast alkali free scouring and bleaching clean dyeing and finishing process for cotton knitting Effective date of registration: 20220624 Granted publication date: 20161102 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch Pledgor: SHANGHAI JIALE Co.,Ltd. Registration number: Y2022310000085 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |