CN105484070A - Polyester fiber dyeing process - Google Patents

Polyester fiber dyeing process Download PDF

Info

Publication number
CN105484070A
CN105484070A CN201510993340.3A CN201510993340A CN105484070A CN 105484070 A CN105484070 A CN 105484070A CN 201510993340 A CN201510993340 A CN 201510993340A CN 105484070 A CN105484070 A CN 105484070A
Authority
CN
China
Prior art keywords
polyster fibre
fixation
dyeing
temperature
dye
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.)
Pending
Application number
CN201510993340.3A
Other languages
Chinese (zh)
Inventor
陶文祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGSHU XIANGYING SPECIAL FIBER Co Ltd
Original Assignee
CHANGSHU XIANGYING SPECIAL FIBER Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHANGSHU XIANGYING SPECIAL FIBER Co Ltd filed Critical CHANGSHU XIANGYING SPECIAL FIBER Co Ltd
Priority to CN201510993340.3A priority Critical patent/CN105484070A/en
Publication of CN105484070A publication Critical patent/CN105484070A/en
Pending legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673Inorganic compounds
    • D06P1/67333Salts or hydroxides
    • D06P1/6735Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/653Nitrogen-free carboxylic acids or their salts
    • D06P1/6533Aliphatic, araliphatic or cycloaliphatic
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/34Material containing ester groups
    • D06P3/52Polyesters
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/02After-treatment

Abstract

The invention discloses a polyester fiber dyeing process, which comprises following steps (1) pretreatment; (2) dyeing; (3) soaping; (4) color fixing; (5) coiling. The polyester fiber dyeing process is simple and convenient to operate and easy to realize, and improves adsorptivity of polyester fiber to dye and enhances a color fixing effect of the dye by a reasonable process design, and the prepared polyester fiber has the advantages of good mechanical properties, uniform dyeing, no color fading after washing and excellent comprehensive properties.

Description

A kind of polyster fibre dyeing technique
Technical field
The present invention relates to polyster fibre field, particularly relate to a kind of polyster fibre dyeing technique.
Background technology
Polyster fibre is the hydrophobic fibre be made up of polyethylene terephthalate.Because terylene molecular chain structure is tight, lack the hydrophilic radical such as carboxyl, sulfonic group and can not the dyeing such as direct dyes, ACID DYES, basic-dyeable fibre be used.Existing colouring method uses disperse dyeing under mostly adopting High Temperature High Pressure, hot melt or carrier existence condition.But in high-temperature pressure dyeing, some DISPERSE DYES are high temperature resistant, and dispersion stabilization is poor, the uneven problem of dyeing is caused often to occur, simultaneously due to the restriction of device security under high-temperature and high-pressure conditions, clearly, this just seriously deviates from the development trend of ecological dyeing the problem that dyeing batch is little, bath raio is large, labour intensity is high, every consumption is large; Disperse dye normal pressure dyeing is mainly by adding carrier to accelerate expansion to polyster fibre and upper dye, thus reduction dyeing temperature, improve dye uptake, but carrier easily remains on fabric or fiber, affect the light fastness of azo dispersion dyes, pollute the environment and poison human body when using simultaneously, and also there is the problem of easily fading, affecting the wearability of fabric.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of polyster fibre dyeing technique, can solve the problems referred to above that existing polyster fibre dyeing exists.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of polyster fibre dyeing technique, comprise the steps:
(1) pre-treatment: be configured to pretreatment liquid with NaOH, without phosphorus degreaser and dispersant, then polyster fibre is immersed in pretreatment liquid with certain bath raio, carry out rinsing at a certain temperature, then in mixed liquor, slowly add acid solution, adjust ph is extremely neutral, clear water washes clean;
(2) dye: dye solution is warming up to 40 ~ 50 DEG C, then the polyster fibre after pre-treatment in step (1) is immersed in dye solution with certain bath raio, carry out dyeing process at a certain temperature;
(3) soap: by the polyster fibre after dyeing in step (2) with certain bath raio insert mass concentration be 4 ~ 5g/L soap in liquid, soap 15 ~ 25min under the condition of 90 ~ 98 DEG C, then rinses well with the clear water of 50 ~ 60 DEG C;
(4) fixation: the polyster fibre fixation liquid steam heat after soaping in step (3) is steamed 2 ~ 3h, is then cooled to room temperature, clean by clean water, then dry, bake, complete fixation treatment;
(5) rolling: by the polyster fibre rolling after fixation treatment in step (4), warehouse-in.
In a preferred embodiment of the present invention, in described step (1), in described pretreatment liquid, NaOH is 4 ~ 5g/L, without phosphorus degreaser is 5 ~ 6g/L, dispersant is 0.5 ~ 1g/L; Described rinsing process is: temperature 120 ~ 130 DEG C, time 10 ~ 20min.
In a preferred embodiment of the present invention, in described step (1), the formic acid solution of described acid solution to be mass concentration be 3 ~ 5g/L, its rate of addition is 1 ~ 5mL/min.
In a preferred embodiment of the present invention, in described step (2), the formula of described dye solution is: dyestuff 2.5 ~ 3.0owf%, dye leveller 1.0 ~ 1.3g/L, bleeding agent 1.0 ~ 1.5g/L; Described color fixing process is: first with the ramp to 90 DEG C of 2.5 ~ 3 DEG C/min, then with the ramp to 120 DEG C of 0.5 ~ 1 DEG C/min, and constant temperature keeps 10 ~ 15min, then is down to room temperature with the speed of 2.5 ~ 3 DEG C/min.
In a preferred embodiment of the present invention, in described step (4), the formula of described fixation liquid is: color-fixing agent 2.5 ~ 3.5g/L, glacial acetic acid 1 ~ 1.5g/L; The temperature of described fixation liquid steam is 100 ~ 110 DEG C.
In a preferred embodiment of the present invention, in described step (4), described stoving process is 80 ~ 90 DEG C dries 5 ~ 10min; Described baking is 120 ~ 130 DEG C and bakes 1 ~ 2.5min.
In a preferred embodiment of the present invention, in described step (1) ~ (4), described bath raio is 1:25 ~ 1:35.
The invention has the beneficial effects as follows: a kind of polyster fibre dyeing technique of the present invention, easy and simple to handle, easy realization, it is by rational technological design, not only increase the absorption property of polyster fibre to dyestuff, and enhancing the colour fixation of dyestuff, prepared dyeing polyster fibre has good mechanical property, even dyeing, the non-fading advantage of washing, excellent combination property.
Detailed description of the invention
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
The embodiment of the present invention comprises:
Embodiment 1
A kind of polyster fibre dyeing technique, comprises the steps:
(1) pre-treatment: be configured to pretreatment liquid with NaOH, without phosphorus degreaser and dispersant, then polyster fibre is immersed in pretreatment liquid with the bath raio of 1:25, rinsing 20min at the temperature of 120 DEG C, then in mixed liquor, add with the speed of 1mL/min the formic acid solution that mass concentration is 5g/L, adjust ph is extremely neutral, clear water washes clean; Wherein, the formula of described pretreatment liquid is: NaOH is 4g/L, without phosphorus degreaser is 5g/L, dispersant is 0.5g/L;
(2) dye: dye solution is warming up to 40 DEG C, then the polyster fibre after pre-treatment in step (1) is immersed in dye solution with the bath raio of 1:25, first with the ramp to 90 DEG C of 2.5 DEG C/min, then with the ramp to 120 DEG C of 0.5 DEG C/min, constant temperature keeps 10min, be down to room temperature with the speed of 2.5 DEG C/min again, complete dyeing process; Wherein, the formula of described dye solution is: dyestuff 2.5owf%, dye leveller 1.0g/L, bleeding agent 1.0g/L;
(3) soap: by the polyster fibre after dyeing in step (2), with the bath raio of 1:25, to insert mass concentration be 4g/L soaps in liquid, and soap 25min under the condition of 90 DEG C, then rinses well with the clear water of 50 ~ 60 DEG C;
(4) fixation: the polyster fibre fixation liquid steam heat after soaping in step (3) is steamed 2h, is then cooled to room temperature, clean by clean water, then dry 10min at 80 DEG C, at the temperature of 120 DEG C, bake 2.5min, complete fixation treatment; Wherein, the formula of described fixation liquid is: color-fixing agent 2.5g/L, glacial acetic acid 1g/L; The temperature of described fixation liquid steam is 100 DEG C;
(5) rolling: by the polyster fibre rolling after fixation treatment in step (4), warehouse-in.
Embodiment 2
A kind of polyster fibre dyeing technique, comprises the steps:
(1) pre-treatment: be configured to pretreatment liquid with NaOH, without phosphorus degreaser and dispersant, then polyster fibre is immersed in pretreatment liquid with the bath raio of 1:25, rinsing 10min at the temperature of 130 DEG C, then in mixed liquor, add with the speed of 5mL/min the formic acid solution that mass concentration is 5g/L, adjust ph is extremely neutral, clear water washes clean; Wherein, the formula of described pretreatment liquid is: NaOH is 5g/L, without phosphorus degreaser is 6g/L, dispersant is 1g/L;
(2) dye: dye solution is warming up to 50 DEG C, then the polyster fibre after pre-treatment in step (1) is immersed in dye solution with the bath raio of 1:25, first with the ramp to 90 DEG C of 3 DEG C/min, then with the ramp to 120 DEG C of 1 DEG C/min, constant temperature keeps 15min, be down to room temperature with the speed of 3 DEG C/min again, complete dyeing process; Wherein, the formula of described dye solution is: dyestuff 3.0owf%, dye leveller 1.3g/L, bleeding agent 1.5g/L;
(3) soap: by the polyster fibre after dyeing in step (2), with the bath raio of 1:25, to insert mass concentration be 5g/L soaps in liquid, and soap 25min under the condition of 90 DEG C, then rinses well with the clear water of 50 ~ 60 DEG C;
(4) fixation: the polyster fibre fixation liquid steam heat after soaping in step (3) is steamed 3h, is then cooled to room temperature, clean by clean water, then dry 5min at 90 DEG C, at the temperature of 130 DEG C, bake 1min, complete fixation treatment; Wherein, the formula of described fixation liquid is: color-fixing agent 3.5g/L, glacial acetic acid 1.5g/L; The temperature of described fixation liquid steam is 110 DEG C;
(5) rolling: by the polyster fibre rolling after fixation treatment in step (4), warehouse-in.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (7)

1. a polyster fibre dyeing technique, is characterized in that, comprises the steps:
(1) pre-treatment: be configured to pretreatment liquid with NaOH, without phosphorus degreaser and dispersant, then polyster fibre is immersed in pretreatment liquid with certain bath raio, carry out rinsing at a certain temperature, then in mixed liquor, slowly add acid solution, adjust ph is extremely neutral, clear water washes clean;
(2) dye: dye solution is warming up to 40 ~ 50 DEG C, then the polyster fibre after pre-treatment in step (1) is immersed in dye solution with certain bath raio, carry out dyeing process at a certain temperature;
(3) soap: by the polyster fibre after dyeing in step (2) with certain bath raio insert mass concentration be 4 ~ 5g/L soap in liquid, soap 15 ~ 25min under the condition of 90 ~ 98 DEG C, then rinses well with the clear water of 50 ~ 60 DEG C;
(4) fixation: the polyster fibre fixation liquid steam heat after soaping in step (3) is steamed 2 ~ 3h, is then cooled to room temperature, clean by clean water, then dry, bake, complete fixation treatment;
(5) rolling: by the polyster fibre rolling after fixation treatment in step (4), warehouse-in.
2. a kind of polyster fibre dyeing technique according to claim 1, is characterized in that, in described step (1), in described pretreatment liquid, NaOH is 4 ~ 5g/L, without phosphorus degreaser is 5 ~ 6g/L, dispersant is 0.5 ~ 1g/L; Described rinsing process is: temperature 120 ~ 130 DEG C, time 10 ~ 20min.
3. a kind of polyster fibre dyeing technique according to claim 1, is characterized in that, in described step (1), the formic acid solution of described acid solution to be mass concentration be 3 ~ 5g/L, its rate of addition is 1 ~ 5mL/min.
4. a kind of polyster fibre dyeing technique according to claim 1, is characterized in that, in described step (2), the formula of described dye solution is: dyestuff 2.5 ~ 3.0owf%, dye leveller 1.0 ~ 1.3g/L, bleeding agent 1.0 ~ 1.5g/L; Described color fixing process is: first with the ramp to 90 DEG C of 2.5 ~ 3 DEG C/min, then with the ramp to 120 DEG C of 0.5 ~ 1 DEG C/min, and constant temperature keeps 10 ~ 15min, then is down to room temperature with the speed of 2.5 ~ 3 DEG C/min.
5. a kind of polyster fibre dyeing technique according to claim 1, is characterized in that, in described step (4), the formula of described fixation liquid is: color-fixing agent 2.5 ~ 3.5g/L, glacial acetic acid 1 ~ 1.5g/L; The temperature of described fixation liquid steam is 100 ~ 110 DEG C.
6. a kind of polyster fibre dyeing technique according to claim 1, is characterized in that, in described step (4), described stoving process is 80 ~ 90 DEG C dries 5 ~ 10min; Described baking is 120 ~ 130 DEG C and bakes 1 ~ 2.5min.
7. a kind of polyster fibre dyeing technique according to claim 1, is characterized in that, in described step (1) ~ (4), described bath raio is 1:25 ~ 1:35.
CN201510993340.3A 2015-12-28 2015-12-28 Polyester fiber dyeing process Pending CN105484070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510993340.3A CN105484070A (en) 2015-12-28 2015-12-28 Polyester fiber dyeing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510993340.3A CN105484070A (en) 2015-12-28 2015-12-28 Polyester fiber dyeing process

Publications (1)

Publication Number Publication Date
CN105484070A true CN105484070A (en) 2016-04-13

Family

ID=55671319

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510993340.3A Pending CN105484070A (en) 2015-12-28 2015-12-28 Polyester fiber dyeing process

Country Status (1)

Country Link
CN (1) CN105484070A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106192260A (en) * 2016-08-04 2016-12-07 安徽中天纺织科技股份有限公司 The high-strength portable of a kind of water proof fire retardant and the preparation method of industry dyeing cloth
CN109295753A (en) * 2018-09-27 2019-02-01 桐乡市创新纺织有限公司 A kind of dyeing of polyester fiber
CN109295764A (en) * 2018-09-27 2019-02-01 桐乡市创新纺织有限公司 A kind of dyeing of polyester fiber
CN109403010A (en) * 2018-09-12 2019-03-01 浙江商隆印染有限公司 Terylene four sides elasticity cloth dyeing technique
CN110283476A (en) * 2019-06-28 2019-09-27 泉州师范学院 A kind of terylene can contaminate the preparation method and colouring method of natural dye
CN112411200A (en) * 2020-11-04 2021-02-26 郎溪远华纺织有限公司 Dyeing process of antibacterial bacteriostatic polyester fabric
CN114606782A (en) * 2022-03-16 2022-06-10 青岛科技大学 Dyeing method for improving dyeing performance of polyester fiber
CN115434165A (en) * 2022-09-01 2022-12-06 桐乡市龙翔纺织有限责任公司 Production process of skin-imitated knitted microfiber fabric

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1840777A (en) * 2005-04-01 2006-10-04 深圳市厚裕时装有限公司 Method for hand-painted coloration and dyeing of textile
CN101476207A (en) * 2008-12-19 2009-07-08 常熟市锦绣经纬编有限公司 Warp knitting terylene ginning velvet carpet and method of processing the same
CN102352545A (en) * 2011-07-01 2012-02-15 临沂绿因工贸有限公司 Water wave wool blanket and developing process thereof
CN103088541A (en) * 2013-01-31 2013-05-08 常熟市锦绣经纬编有限公司 Novel nap silk fabric and manufacture method thereof
CN104695240A (en) * 2015-04-07 2015-06-10 太仓天龙化纤有限公司 Chemical fiber dyeing technology with ultraviolet protection function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1840777A (en) * 2005-04-01 2006-10-04 深圳市厚裕时装有限公司 Method for hand-painted coloration and dyeing of textile
CN101476207A (en) * 2008-12-19 2009-07-08 常熟市锦绣经纬编有限公司 Warp knitting terylene ginning velvet carpet and method of processing the same
CN102352545A (en) * 2011-07-01 2012-02-15 临沂绿因工贸有限公司 Water wave wool blanket and developing process thereof
CN103088541A (en) * 2013-01-31 2013-05-08 常熟市锦绣经纬编有限公司 Novel nap silk fabric and manufacture method thereof
CN104695240A (en) * 2015-04-07 2015-06-10 太仓天龙化纤有限公司 Chemical fiber dyeing technology with ultraviolet protection function

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106192260A (en) * 2016-08-04 2016-12-07 安徽中天纺织科技股份有限公司 The high-strength portable of a kind of water proof fire retardant and the preparation method of industry dyeing cloth
CN106192260B (en) * 2016-08-04 2018-06-15 安徽中天纺织科技股份有限公司 A kind of preparation method of the high-strength portable of water proof fire retardant and industry dyeing cloth
CN109403010A (en) * 2018-09-12 2019-03-01 浙江商隆印染有限公司 Terylene four sides elasticity cloth dyeing technique
CN109295753A (en) * 2018-09-27 2019-02-01 桐乡市创新纺织有限公司 A kind of dyeing of polyester fiber
CN109295764A (en) * 2018-09-27 2019-02-01 桐乡市创新纺织有限公司 A kind of dyeing of polyester fiber
CN110283476A (en) * 2019-06-28 2019-09-27 泉州师范学院 A kind of terylene can contaminate the preparation method and colouring method of natural dye
CN112411200A (en) * 2020-11-04 2021-02-26 郎溪远华纺织有限公司 Dyeing process of antibacterial bacteriostatic polyester fabric
CN114606782A (en) * 2022-03-16 2022-06-10 青岛科技大学 Dyeing method for improving dyeing performance of polyester fiber
CN115434165A (en) * 2022-09-01 2022-12-06 桐乡市龙翔纺织有限责任公司 Production process of skin-imitated knitted microfiber fabric

Similar Documents

Publication Publication Date Title
CN105484070A (en) Polyester fiber dyeing process
CN104099788B (en) Eco-friendly cotton fabric dyeing process
CN102978980B (en) Polyester cotton one bath process dye
CN104790226B (en) Anti-staining dyeing method of polyamide-cotton fabric
CN105421105B (en) A kind of polyester-cotton blend disperse dyes and reactive dye One Bath Dyeing Process
CN102199884A (en) Method for dip-dyeing polyamide/cotton (viscose) fabrics with acid or neutral and reactive dyes in one-bath way
CN102162197A (en) Method for dip-dyeing polyester rayon (cotton) fabrics or yarns with disperse and reactive dyes by one-bath process
CN103993490B (en) A kind of terylene basic dyeing one auxiliary agent and application thereof
CN104358140B (en) Be applicable to the colouring method of polyamide fibre, aramid fiber blended textile
CN108166241A (en) Cotton knitwear short route dyeing and finishing technology method
CN107476081B (en) Dyeing and finishing process of polyester fiber-cellulose fiber mixed textile
CN108677562B (en) Pre-treatment-free dyeing method for polyester-cotton blended fiber
CN104831552A (en) Medium-dark color polyester fabric dyeing method
CN103938465A (en) High-temperature dyeing process for chemical fiber filament
CN106192470A (en) A kind of reactive dyes dyeing method of high colour-fast rate
CN105019263A (en) Printing and dyeing agent for polyester-nylon-cotton blended fabric and printing and dyeing technology using the same
CN109295764A (en) A kind of dyeing of polyester fiber
CN104746359A (en) Fluorescent paint dip-dyeing method of cotton fabrics
CN104278558A (en) Active dye applied to wool and wool dyeing method
CN103774461A (en) Method of dyeing acrylic fiber/hair/copper ammonia fiber blended knitting fabric by use of one-bath two-stage process
CN103806311A (en) Cheese dyeing posttreatment process
CN111455699A (en) Micro-water dyeing method suitable for wool
CN107287933A (en) A kind of colouring method of polyimide fiber or polyimides fabric
CN105951477A (en) Method for dyeing chemical-fiber textile cloth
CN103088678A (en) Method used for textile dyeing and finishing after-treatment

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160413