[go: up one dir, main page]

CN101353864B - A method for finishing dry and cool knitted underwear or fabric - Google Patents

A method for finishing dry and cool knitted underwear or fabric Download PDF

Info

Publication number
CN101353864B
CN101353864B CN2008100369504A CN200810036950A CN101353864B CN 101353864 B CN101353864 B CN 101353864B CN 2008100369504 A CN2008100369504 A CN 2008100369504A CN 200810036950 A CN200810036950 A CN 200810036950A CN 101353864 B CN101353864 B CN 101353864B
Authority
CN
China
Prior art keywords
fabric
dry
knitted underwear
finishing
underwear
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.)
Expired - Fee Related
Application number
CN2008100369504A
Other languages
Chinese (zh)
Other versions
CN101353864A (en
Inventor
蔡再生
沈为
张佩华
程隆棣
曹春祥
罗珊珊
曹佳萍
归晓鸣
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.)
Shanghai Three Gun Group Co ltd
Donghua University
Original Assignee
Shanghai Three Gun Group Co ltd
Donghua University
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 Shanghai Three Gun Group Co ltd, Donghua University filed Critical Shanghai Three Gun Group Co ltd
Priority to CN2008100369504A priority Critical patent/CN101353864B/en
Publication of CN101353864A publication Critical patent/CN101353864A/en
Application granted granted Critical
Publication of CN101353864B publication Critical patent/CN101353864B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

本发明涉及一种干爽凉爽针织内衣或面料的整理方法,包括:1)按照企业常用方法的前处理;2)水洗;3)疏水芯材温敏型微胶囊整理;4)亲水剂后处理。使用本方法生产出的内衣具有良好的导湿干爽功能,既不但能把人体表面所排出的汗液吸收,而且还能将衣料中的水分迅速排出,这种内衣能使人体产生干爽、凉快、舒适的感觉。The invention relates to a method for finishing dry and cool knitted underwear or fabrics, comprising: 1) pretreatment according to the common method of enterprises; 2) washing with water; 3) finishing with temperature-sensitive microcapsules of hydrophobic core material; 4) post-treatment with hydrophilic agent . The underwear produced by this method has a good moisture-conducting and dry function. It can not only absorb the sweat discharged from the surface of the human body, but also quickly discharge the moisture in the clothing material. This underwear can make the human body feel dry, cool and comfortable. a feeling of.

Description

The method for sorting of a kind of dry-touch and cool knitted underwear or lining
Technical field
The invention belongs to the method for sorting field of clothes, particularly relate to the method for sorting of a kind of dry-touch and cool knitted underwear or lining.
Background technology
A clothes particularly major function of underwear (one side contacts the clothes of skin all can regard underwear as) are wearing comfortableness, this just requires garment material to have the good wet dry and comfortable function of leading, promptly not only can the sweat that human body surface is discharged be absorbed, and the moisture in the lining can also be discharged rapidly, this lining can make human body produce dry and comfortable, pleasantly cool, comfortable sensation.Though and linings such as cotton, hair, silk have moisture absorbing preferably, the hydrofuge poor performance, especially when human body is perspired in a large number, sweat can not in time be discharged and on one's body being close to, thereby can make the people produce clammy discomfort.
Summary of the invention
The method for sorting that the purpose of this invention is to provide a kind of dry-touch and cool knitted underwear or lining, the underwear that uses this method to produce has the good wet dry and comfortable function of leading, promptly not only can the sweat that human body surface is discharged be absorbed, and the moisture in the dress material can also be discharged rapidly, this underwear can make human body produce dry and comfortable, pleasantly cool, comfortable sensation.
The method for sorting of a kind of dry-touch and cool knitted underwear of the present invention or lining comprises step:
1) hydrophobic core material temperature sensitive type microcapsule arrangement
It is in 1: 8~15 the solution that knitted underwear or lining drop into bath raio, behind the room temperature dipping, dehydration, 80~100 ℃ were dried by the fire 3~5 minutes, 120~150 ℃ baked 40~90 seconds again, wherein, the composition of solution is hydrophobic core material temperature sensitive type microcapsule cwjn-1 8~12% (heavy to fabric), penetrating agent JFC (isobutyl group phenoxy group polyoxyethylene ethanol) 0.5~3% (heavy to fabric), adhesive 6~8% (heavy to fabric), and remainder is a water;
2) post processing
Putting into bath raio again through knitted underwear that step 1) is handled or lining is in 1: 8~10 the hydrophilizing agent Treatment Solution, transfer pH to 5.5~7 with acetic acid (HAC), behind 55~65 ℃ of dipping 30~45min, directly dehydration, oven dry, wherein, the component of hydrophilizing agent Treatment Solution is that hydrophilic finish agent 5~10% (heavy to fabric), penetrating agent JFC 0.5~3% (heavy to fabric), remainder are water.
Described knitted underwear or lining can be true qualities, bleach, brighten, dye, and its material can be the single fiber or the multiple fiber blend of cotton, viscose glue, wool, silk.
Described hydrophobic core material temperature sensitive type microcapsule cwjn-1 makes by following condition: NIPAAm (N-N-isopropylacrylamide): AAm (acrylamide) mol ratio 6: 1, MBAAm (N, N-methylene diacrylamine) 0.25% (to N-N-isopropylacrylamide and acrylamide weight sum); Scotchgard FC-805 (chromium complex of perfluorocarboxylic acid), the weight ratio of lecithin is 1: 1.2, and Scotchgard FC-805 is 30% of a NIPAAm weight, and all the other are water 30; Solution is under nitrogen protection, with mixing speed 600rmin -1Stirring 30min makes.
Described penetrating agent JFC is a kind of common anion surfactant, plays the effect of diffusion and uniformly penetrating.
Described adhesive is Helizarin binder FWT (BASF AG), Evo Protect FXM (De Sida company), a kind of among the Helizarin binder 4438 (BASF AG).
Described hydrophilic finish agent is a kind of among hydrophily consistent lubricant 3098 (Shenzhen two rainbow companies), hydrophily agent Lurotex (BASF AG), the hydrophily agent Sliligen SIH Nano (BASF AG).
The present invention applies temperature sensitive type microcapsule coated by hydrophobic core material with knitted underwear or lining earlier, pass through variations in temperature, temperature sense type microcapsules rupture discharges hydrophobic core material, makes its even distribution discrete point in surface in underwear, like forming capillary channel on the fiber or between fiber, make fabric produce core sucting action, therefore suction fast, water delivery, diffusion and volatilization migrate to fiber surface rapidly with sweat, and distribute, thereby reach the purpose of moisture absorbing and sweat releasing.
Owing to be the even distribution discrete point in surface in underwear, good fastness is arranged, simultaneously, when moisture state, can as cotton fiber, not lodge yet, can keep the micro climate state between fabric and skin all the time, with the not only moisture absorption of clothes of its production, diffusing wetting, and the air penetration performance is good, clothes are comfortable and easy to wear, no feeling of oppression and heat, and these are obviously different with hydrophobic fibre clothes and traditional three-prevention finishing.
Beneficial effect of the present invention:
The knitted underwear of producing by the inventive method has stronger wicking, very strong moisture absorbing and sweat releasing effect, thereby makes clothing have the sensation of cool and comfortable, even in the large amount of exercise occasion, also can keep dry and comfortable sticking body.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1: cotton underwear or lining
Hydrophobic core material temperature sensitive type microcapsule arrangement: it is in 1: 8 the solution that underwear or lining drop into bath raio, temperature sensitive type microcapsule cwjn-1 10% (heavy) to fabric, penetrating agent JFC 0.5% (heavy) to fabric, Helizarin binder FWT 6% (heavy) to fabric, behind the room temperature dipping, dehydration, oven dry (100 ℃ * 3min), bake (150 ℃ * 40s)
Post processing: add hydrophily consistent lubricant 3,098 5% (heavy to fabric), penetrating agent JFC is 3% (heavy to fabric), transfers pH to 5.5 with HAC, bath raio 1: 8, and behind 60 ℃ of dipping 30min, directly dehydration, oven dry.
Above arrangement sample is carried out hygroscopicity, perspire, gas permeability test, and it the results are shown in Table 1.
Table 1
Figure G2008100369504D00031
Embodiment 2: cotton/wool blended underwear or lining
Hydrophobic core material temperature sensitive type microcapsule arrangement: it is in 1: 8 the solution that underwear or lining drop into bath raio, temperature sensitive type microcapsule cwjn-1 12% (heavy) to fabric, penetrating agent JFC 1.5% (heavy) to fabric, Evo Protect FXM 8% (heavy) to fabric, behind the room temperature dipping, dehydration, oven dry (100 ℃ * 3min), bake (150 ℃ * 60s)
Post processing: add hydrophily agent Lurotex 8%, penetrating agent JFC is 0.5%, transfers pH to 5.5 with HAC, bath raio 1: 10, and behind 60 ℃ of dipping 40min, directly dehydration, oven dry.
Above arrangement sample is carried out hygroscopicity, perspire, gas permeability test, and it the results are shown in Table 2.
Table 2
Figure G2008100369504D00032
Embodiment 3: silk/cashmere blending underwear or lining
Hydrophobic core material temperature sensitive type microcapsule arrangement: it is in 1: 8 the solution that underwear or lining drop into bath raio, temperature sensitive type microcapsule cwjn-1 8% (heavy) to fabric, penetrating agent JFC 0.5% (heavy) to fabric, Helizarin binder 4,438 6% (heavy) to fabric, behind the room temperature dipping, dehydration, oven dry (80 ℃ * 3min), bake again (120 ℃ * 90s)
Post processing: add hydrophily agent Sliligen SIH Nano 8% (heavy to fabric), penetrating agent JFC is 1% (heavy to fabric), transfers pH to 6 with HAC, bath raio 1: 10, and behind 60 ℃ of dipping 30min, directly dehydration, oven dry.
Above arrangement sample is carried out hygroscopicity, perspire, gas permeability test, and it the results are shown in Table 3.
Table 3
Figure G2008100369504D00041

Claims (4)

1.一种干爽凉爽针织内衣或面料的整理方法,包括步骤:1. A method for finishing dry and cool knitted underwear or fabrics, comprising steps: 1)疏水芯材温敏型微胶囊整理1) Hydrophobic core material temperature-sensitive microcapsule finishing 针织内衣或面料投入浴比为1∶8~15的溶液中,室温浸渍后,脱水,80~100℃烘3~5分钟,再120~150℃焙烘40~90秒,其中,溶液的成分是对织物重8~12%的疏水芯材温敏型微胶囊cwjn-1、对织物重0.5~3%的渗透剂异丁基苯氧基聚氧乙烯乙醇JFC、对织物重6~8%的粘合剂,剩余部分是水;所述疏水芯材温敏型微胶囊cwjn-1的制备为:N-异丙基丙烯酰胺NIPAAm∶丙烯酰胺AAm摩尔比6∶1,对N-异丙基丙烯酰胺和丙烯酰胺重量之和0.25%的N,N-亚甲基二丙烯酰胺MBAAm;全氟羧酸的铬络合物Scotchgard FC-805∶卵磷脂重量比为1∶1.2,Scotchgard FC-805的用量对NIPAAm 30%,其余为水;溶液在氮气保护下,以搅拌速度600r·min-1搅拌30min;Knitted underwear or fabrics are put into a solution with a bath ratio of 1:8-15, soaked at room temperature, dehydrated, baked at 80-100°C for 3-5 minutes, and then baked at 120-150°C for 40-90 seconds. Among them, the composition of the solution It is a hydrophobic core material temperature-sensitive microcapsule cwjn-1 with a weight of 8-12% to the fabric, a penetrant isobutylphenoxypolyoxyethylene alcohol JFC with a weight of 0.5-3% to the fabric, and a weight of 6-8% to the fabric The binder, the remainder is water; the preparation of the hydrophobic core material temperature-sensitive microcapsule cwjn-1 is: N-isopropylacrylamide NIPAAm: acrylamide AAm molar ratio 6: 1, for N-isopropylacrylamide 0.25% N, N-methylenebisacrylamide MBAAm of the weight sum of methacrylamide and acrylamide; the chromium complex of perfluorocarboxylic acid Scotchgard FC-805: lecithin weight ratio is 1:1.2, Scotchgard FC- The amount of 805 is 30% of NIPAAm, and the rest is water; under the protection of nitrogen, the solution is stirred at a stirring speed of 600r·min −1 for 30min; 2)后处理2) Post-processing 经步骤1)处理后的针织内衣或面料再投入到浴比为1∶8~10的亲水剂处理溶液中,用醋酸调pH至5.5~7,55~65℃浸渍30~45min后,直接脱水,烘干,其中,处理浴的组分是对织物重5~10%的亲水性整理剂、对织物重0.5~3%的渗透剂异丁基苯氧基聚氧乙烯乙醇JFC、剩余部分是水。The knitted underwear or fabrics treated in step 1) are put into the hydrophilic agent treatment solution with a bath ratio of 1:8-10, adjusted to pH 5.5-7 with acetic acid, soaked at 55-65°C for 30-45 minutes, and directly Dehydration and drying, wherein, the components of the treatment bath are 5-10% of the weight of the fabric hydrophilic finishing agent, 0.5-3% of the weight of the fabric isobutylphenoxypolyoxyethylene alcohol JFC, the remaining Partly water. 2.根据权利要求1所述的干爽凉爽针织内衣或面料的整理方法,其特征在于:所述针织内衣或面料是本色、漂白、增白或染色的,其材质是棉、粘胶、羊毛、丝绸的单一纤维或多种纤维混纺的。2. The finishing method of dry and cool knitted underwear or fabric according to claim 1, characterized in that: said knitted underwear or fabric is natural color, bleached, whitened or dyed, and its material is cotton, viscose, wool, Silk is a single fiber or a blend of multiple fibers. 3.根据权利要求1所述的干爽凉爽针织内衣或面料的整理方法,其特征在于:所述粘合剂是巴斯夫公司的Helizarin binder FWT、德司达公司的Evo Protect FXM、巴斯夫公司的Helizarin binder 4438中的一种。3. The finishing method of dry and cool knitted underwear or fabric according to claim 1, characterized in that: said adhesive is Helizarin binder FWT of BASF, Evo Protect FXM of DyStar, Helizarin binder of BASF One of 4438. 4.根据权利要求1所述的干爽凉爽针织内衣或面料的整理方法,其特征在于:所述亲水性整理剂是深圳双虹公司的亲水性软油3098、巴斯夫公司的亲水性剂Lurotex、巴斯夫公司的亲水性剂Sliligen SIH Nano中的一种。4. The finishing method of dry and cool knitted underwear or fabric according to claim 1, characterized in that: said hydrophilic finishing agent is hydrophilic soft oil 3098 of Shenzhen Shuanghong Company, hydrophilic agent of BASF Company One of Lurotex, BASF's hydrophilic agent Sliligen SIH Nano.
CN2008100369504A 2008-05-04 2008-05-04 A method for finishing dry and cool knitted underwear or fabric Expired - Fee Related CN101353864B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008100369504A CN101353864B (en) 2008-05-04 2008-05-04 A method for finishing dry and cool knitted underwear or fabric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008100369504A CN101353864B (en) 2008-05-04 2008-05-04 A method for finishing dry and cool knitted underwear or fabric

Publications (2)

Publication Number Publication Date
CN101353864A CN101353864A (en) 2009-01-28
CN101353864B true CN101353864B (en) 2010-06-02

Family

ID=40306862

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008100369504A Expired - Fee Related CN101353864B (en) 2008-05-04 2008-05-04 A method for finishing dry and cool knitted underwear or fabric

Country Status (1)

Country Link
CN (1) CN101353864B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101694063B (en) * 2009-10-16 2012-07-04 无锡泰伯服饰有限公司 Finishing method of single-absorption and single-prevention fabric
CN101748606B (en) * 2009-12-14 2011-09-28 宁波雅戈尔日中纺织印染有限公司 Processing method of water-repelling ventilating cellulose fiber knitted fabric
CN102086590A (en) * 2010-12-20 2011-06-08 广东柏堡龙股份有限公司 Finishing method for adding vitamins to textile fabrics and garments
CN103726315B (en) * 2014-01-02 2015-09-02 江苏联发纺织股份有限公司 The preparation method of fabric pH value and humidity response light solidification one-way wet-guide multifunction finishing agent
CN103726316B (en) * 2014-01-02 2015-08-05 江苏联发纺织股份有限公司 The preparation method of fabric pH value and temperature-responsive photocuring one-way wet-guide multifunction finishing agent
CN104862967B (en) * 2014-02-24 2017-05-24 香港纺织及成衣研发中心有限公司 Fabric with surface cooling function and preparation method thereof
CN104131470B (en) * 2014-07-15 2016-03-23 浙江理工大学 Preparation method of fabric for preventing and treating mammary gland disease
CN104153217B (en) * 2014-07-29 2015-12-09 浙江新澳纺织股份有限公司 A kind of colouring processing method of hydrophobicity wool hydroscopic fast-drying
CN105780504A (en) * 2016-05-19 2016-07-20 广东妮可儿服饰有限公司 Manufacture method of cotton series healthy pajamas with sleep-promoting function
CN107385933B (en) * 2017-06-29 2019-12-03 北京宇田相变储能科技有限公司 A kind of one-way wet-guide composite functional fabric that free-floride is washable
KR101925995B1 (en) * 2018-05-21 2018-12-06 주식회사 타임리치 Composition and fabric comprising functional micro-capsule for sweat absorbing and quick drying knitting properties
CN108642768B (en) * 2018-06-15 2021-07-09 中原工学院 A kind of preparation method of moisture-absorbing and sweat-wicking fabric based on viscose fiber
CN110258142B (en) * 2019-06-14 2021-08-17 浙江华晨印染有限公司 Nylon-cotton fabric dyeing process
CN110952314B (en) * 2019-12-09 2022-04-15 武汉纺织大学 Method for preparing moisture-absorbing quick-drying cotton fabric
CN110846897B (en) * 2019-12-09 2022-06-10 武汉纺织大学 A kind of preparation method of bidirectional structure hygroscopic quick-drying cotton fabric
CN110924155B (en) * 2019-12-09 2022-04-15 武汉纺织大学 A method for preparing moisture-absorbing and quick-drying cotton fabric with internal and external hydrophobic and hydrophilic structure from acrylate
CN114232348B (en) * 2022-01-18 2024-08-09 常州旭荣针织印染有限公司 Moisture-absorbing quick-drying finishing method for cotton knitted fabric

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1589092A1 (en) * 2004-04-13 2005-10-26 INTERNATIONAL FLAVORS & FRAGRANCES INC. Stable Fragrance microcapsule suspension and process for using same
CN1851072A (en) * 2006-05-26 2006-10-25 天津工业大学 Polyacrylonitrile temperature-regulating fiber, and its manufacturing method
CN1966846A (en) * 2006-11-24 2007-05-23 华明浩 Method for preparing bidirectional thermal-adjustable fabric with phase change polyurethane heat-sensitive material microcapsule
CN101029421A (en) * 2007-04-17 2007-09-05 河北吉藁化纤有限责任公司 Intelligent temperature-adjusting viscose fibre and its production

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1589092A1 (en) * 2004-04-13 2005-10-26 INTERNATIONAL FLAVORS & FRAGRANCES INC. Stable Fragrance microcapsule suspension and process for using same
CN1851072A (en) * 2006-05-26 2006-10-25 天津工业大学 Polyacrylonitrile temperature-regulating fiber, and its manufacturing method
CN1966846A (en) * 2006-11-24 2007-05-23 华明浩 Method for preparing bidirectional thermal-adjustable fabric with phase change polyurethane heat-sensitive material microcapsule
CN101029421A (en) * 2007-04-17 2007-09-05 河北吉藁化纤有限责任公司 Intelligent temperature-adjusting viscose fibre and its production

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
任彦荣等.温度感应型微胶囊的制备研究.化工技术与开发34 1.2005,34(1),12-14.
任彦荣等.温度感应型微胶囊的制备研究.化工技术与开发34 1.2005,34(1),12-14. *
王春莹等.调温微胶囊的研制.印染 6.2002,(6),13-17.
王春莹等.调温微胶囊的研制.印染 6.2002,(6),13-17. *

Also Published As

Publication number Publication date
CN101353864A (en) 2009-01-28

Similar Documents

Publication Publication Date Title
CN101353864B (en) A method for finishing dry and cool knitted underwear or fabric
CN109554919A (en) A kind of skin care antibacterial microcapsule finishing agent and its preparation method and application
CN105239398B (en) Perspire pajama fabric
CN109930392B (en) Preparation method of washable long-acting cool cotton-containing knitted fabric
CN110359158A (en) A kind of moisture absorbing and sweat releasing and the polyester fabric of antibacterial and preparation method thereof
CN1986951A (en) Dyeing and finishing process of moisture-absorbing quick-drying polyester fiber fabric
CN108950842A (en) Hygroscopic, perspiratory and antibacterial fabric and preparation method thereof
CN106012538B (en) The production method of hydroscopic fast-drying one-way wet-guide double-layer fabric
CN105286096B (en) Sweat discharge underwear fabric
CN109208337A (en) A kind of three-dimensional two-way conduction hydroscopic fast-drying cotton fabric and its preparation and application
CN105544079A (en) One-way sweat conducting and removing fabric
CN109868664A (en) The preparation method of micro suede face fabric
CN112111842A (en) Preparation method of ultrathin super-elastic sweat-releasing thermal pajama and underwear fabric
CN105839430A (en) Cotton fabric moisture absorption and fast drying sorting method based on printing process
CN106592225A (en) Aromatherapy skin-protection type non-ironing finishing liquid for shirts and finishing method thereof
CN106835718B (en) A kind of method for sorting and pure cotton fabric of pure cotton fabric moisture absorbing and sweat releasing quick-drying
CN106592224A (en) Wear-resisting ironing-free finishing liquid of shirt and finishing method of wear-resisting ironing-free finishing liquid
CN107858831A (en) The preparation method of water suction gas permeability fabric
CN101694060B (en) After finishing method for sericin of cashmere product
CN106436298A (en) Water-absorption and moisture-conducting environment-friendly and anti-wrinkle non-ironing finishing liquid of shirts and finishing method of shirts
CN106758155A (en) The fire-retardant vapor-permeable type noniron finish liquid and its method for sorting of a kind of shirt
CN105506847B (en) Perspire T-shirt fabric
CN109023686A (en) A kind of underwear fabric and its processing technology
CN108382027A (en) A kind of processing technology of heat generating fiber composite material
CN104674544B (en) The tussah silk textiles that tussah silk textiles functional finishing agent, method for sorting and arrangement obtain

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
EE01 Entry into force of recordation of patent licensing contract

Assignee: Shanghai Knitting No.9 Plant

Assignor: Donghua University|Shanghai threegun (Group) Co., Ltd.

Contract record no.: 2011310000199

Denomination of invention: Finishing method of dry-touch and cool knitted underwear or fabric

Granted publication date: 20100602

License type: Exclusive License

Open date: 20090128

Record date: 20111008

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100602

Termination date: 20130504