CN106307645B - Improve bra steel ring and its processing method, the brassiere product with the steel ring - Google Patents
Improve bra steel ring and its processing method, the brassiere product with the steel ring Download PDFInfo
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- CN106307645B CN106307645B CN201510398545.7A CN201510398545A CN106307645B CN 106307645 B CN106307645 B CN 106307645B CN 201510398545 A CN201510398545 A CN 201510398545A CN 106307645 B CN106307645 B CN 106307645B
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- steel ring
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- improvement
- brassiere
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
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Abstract
The present invention relates to underwear technical field, specifically disclose a kind of improvement bra steel ring, the steel ring is integrally formed by modified thermoplastic polyurethane elastomer and is made after injecting mould, and the tow sides of the steel ring pass through between be correspondingly provided with relatively intensive groove, outer layer closely be embedded in the groove so as to be connected and fix with the steel ring after passing sequentially through the cold patch of glue spraying, molding.The invention also discloses the brassiere product of the processing method of the improvement bra steel ring and the application steel ring.Cost of the invention is low, manufacturing process one-shot forming, environmental protection, it has been greatly saved resource, bra body is closely fitted together to by the groove on steel ring so that the brassiere stationarity formed is good, water-fastness, it is unlikely to deform, replaceable expensive like product, has very high market popularization value, good in economic efficiency.
Description
Technical field
The present invention relates to underwear technical field, more particularly to a kind of improvement bra steel ring and its processing method, there is the steel
The brassiere product of circle.
Background technology
The function of steel ring in brassiere is to provide support.Traditional steel ring for brassiere is the wire being substantially formed in a U-shape, and is deposited
Dissociate in wire and moved in fabric sleeve, cause steel ring to influence the supporting role to brassiere and esthetic problems after moving, separately
Outside, wire, which need to be arranged in fabric sleeve, then increases processing cost.Existing research is kept away by the way that wire is arranged in plastic housing
Exempt from steel ring and puncture fabric sleeve, or mode is only placed in fabric sleeve etc. by plastic material to reduce the risk that steel ring punctures fabric sleeve,
But this steel ring but has the problems such as cost is high, it is required for that first steel ring is placed in fabric sleeve, to prevent steel ring from moving, it
Brassiere is processed into brassiere material main body afterwards, it has the drawbacks of post forming, adds the cost of product, and manufacturing process is complicated
Change.
As people are to brassiere comfort level, quality and higher pursuit attractive in appearance, brassiere and its steel ring material are also again constantly more
It is new to regenerate.Plasticity polyurethane elastomer material has that anti-aging excellent color inhibition, water resistance, strength high toughness be good, shape
The combination properties such as recovery, processability be good, its research for being applied to bra steel ring material not yet occurs in the market, with reference to essence
The mould of heart design, the one-time formed steel ring for being adapted to brassiere product that produces have great breakthrough and using valency
Value.
Therefore, it is necessary to further develop the structure and performance for improving bra steel ring, while processing and forming technology is optimized, to obtain
Obtain more preferable economic benefit, performance more preferably steel ring and brassiere product.
The content of the invention
For above-mentioned deficiency, it is an object of the present invention to provide a kind of cost is low, one-shot forming, stationarity is good, water-fast
Wash, on-deformable improvement bra steel ring.
The present invention also aims to, there is provided the processing method of foregoing improvement bra steel ring.
The present invention also aims to, there is provided utilize the brassiere product of foregoing improvement bra steel ring.
The present invention is that technical scheme is used by reaching above-mentioned purpose：
One kind improvement bra steel ring, the steel ring be integrally formed after injecting mould by modified thermoplastic polyurethane elastomer and
Be made, and the tow sides of the steel ring pass through between be correspondingly provided with relatively intensive groove, make brassiere cup
Ectonexine can closely be embedded in the groove so as to be connected and fix with the steel ring after passing sequentially through the cold patch of glue spraying, molding.
Further, described groove is pore structure.
Further, described steel ring is the arc-shaped steel ring that can be adapted with human breast shape, and it is on the inside of the breast
Arc length be the arc length on the outside of the breast 50-60%.
Further, the both ends of described steel ring are equipped with flat extension, and the length of the extension is the whole of the steel ring
The 2-4% of body length.
Further, described modified thermoplastic polyurethane elastomer is made up of the component of following parts by weight：Copolyether 48-
52 parts, dihydric alcohol 13-16 parts, isocyanates 33-36 parts, ureaformaldehyde/SiO 2 composite microsphere 15-20 parts, chitosan 5-8 parts,
Organotin 3-5 parts.
Further, described copolyether is oxirane/tetrahydrofuran copolyether, and the equal relative molecular mass of number is
3000-4000, hydroxyl value 26-40mgKOH/g；Described dihydric alcohol is 1,3 butylene glycol, 1,4- butanediols or 1,5- pentanediols
In one or more；Described isocyanates be tolylene diisocyanate or one kind in 1,5- naphthalene diisocyanates or
It is a variety of；The N- deacetylations of described chitosan are 70-85%；Described ureaformaldehyde/SiO 2 composite microsphere is lured using polymerization
Lead that coacervation of colloid method is made, its particle diameter is 30-100nm.
A kind of processing method of foregoing improvement bra steel ring, it comprises the following steps：
(1) preparation of modified thermoplastic polyurethane elastomeric material：The copolyether 48-52 parts measured are added into four mouthfuls of burnings
In bottle, logical nitrogen is vacuumized, 100 DEG C of removing moisture of temperature control, isocyanates 33-36 parts and organotin 3-5 parts is added, at the uniform velocity stirs
Mix, in 110 DEG C of prepolymerization reaction 1-2h, add dihydric alcohol 13-16 parts, ureaformaldehyde/SiO 2 composite microsphere 15-20 parts, shell afterwards
Glycan 5-8 parts are into flask, maintaining nitrogen purge under vacuum, and solution becomes more sticky after quick stirring reaction 1-2h, and stopping is taken out true
Empty and logical nitrogen, continue after reacting 3-5min, product is transferred in Teflon mould, is put into 110 DEG C of vacuum drying chambers
Middle curing 6-8h, it is stripped afterwards, pelletizing, it is standby after room temperature placement 8h；
(2) the modified thermoplastic polyurethane elastomeric material of gained is added in the barrel of injection machine, through 1500-2000r/
After s high-speed stirreds are uniform, in the mould that 185-200 DEG C is kneaded that injection customizes in advance, through cooling down, being molded, obtain improveing brassiere
Steel ring.
Further, described mould is the two-part mould being correspondingly arranged, and each mould part includes being used to accommodate institute
The chamber of modified thermoplastic polyurethane elastomer is stated, and is set in turn in the intracavitary and is used to make the positive and negative surface of steel ring position to be formed
Some projections of groove or pore structure.
One kind using brassiere made of foregoing improvement bra steel ring, the brassiere include by least two layers cup base material molding and
Into cup, described steel ring is located between two layers of cup base material, and the brassiere successively through cold patch, hot press moulding forms.
Described cup base material is sponge material or fiber cotton material.
The present invention compared with prior art, has the following advantages that：
1st, steel ring product of the invention is made of unique modified thermoplastic polyurethane elastomeric material, is had well
Caoutchouc elasticity, stretch-proof deformability is strong, and cost is low, water-tolerant, strength high toughness are good, recovery of shape, processability are good etc.
Excellent combination property.
2nd, in brassiere product of the invention the tow sides of steel ring be correspondingly provided between passing through it is relatively close
The groove of collection, outer layer closely be embedded in the groove after passing sequentially through the cold patch of glue spraying, molding thus with the steel
Circle is connected and fixed, and there is excellent steel ring stability maintenance, its processing mode can realize one-shot forming, its unique steel ring
Processing cost is reduced with the fixed form of bra body, optimizes properties of product, it is water-fastness, it is unlikely to deform, cost is low, through me
A large amount of client's practical applications feedback of department, it has obvious performance advantage and price advantage compared with similar products.
3rd, processing method rational technology of the present invention, cost is low, can be mass-produced application, market prospects are fabulous.
Above-mentioned is the general introduction of inventive technique scheme, below in conjunction with accompanying drawing and embodiment, the present invention is done further
Explanation.
Brief description of the drawings
Fig. 1 is the steel ring overall structure front view of the present invention；
Fig. 2 is the steel ring overall structure lateral plan of the present invention；
Fig. 3 is the mode host visual pattern for being used to manufacture steel ring of the present invention of the present embodiment；
In figure：Steel ring 1；Groove 2；Inner arc 3；Outer arc 4；Extension 5；Upper mould 6；Lower mould 7；Accommodating chamber 8；Projection 9.
Embodiment：
Embodiment 1：Referring to Fig. 1-3, improvement bra steel ring of the invention, the steel ring 1 is by modified thermoplastic polyurethane elasticity
Body is integrally formed and is made after injecting mould, and the tow sides of the steel ring 1 pass through between be correspondingly provided with
Relatively intensive groove 2, outer layer closely be embedded in the groove 2 after passing sequentially through the cold patch of glue spraying, molding so that
It is connected with the steel ring 1 and fixed；Described groove 2 is pore structure；Described steel ring 1 is that can mutually be fitted with human breast shape
The arc-shaped steel ring answered, and its length of inner arc 3 on the inside of breast is the 50-60% of the length of outer arc 4 on the outside of breast；Institute
The both ends for the steel ring 1 stated are equipped with flat extension 5, and the length of the extension 5 is the 2-4% of the entire length of the steel ring 1；
Described modified thermoplastic polyurethane elastomer is made up of the component of following parts by weight：Copolyether 48-52 parts, dihydric alcohol 13-
16 parts, isocyanates 33-36 parts, ureaformaldehyde/SiO 2 composite microsphere 15-20 parts, chitosan 5-8 parts, organotin 3-5 parts；Institute
The copolyether stated is oxirane/tetrahydrofuran copolyether, and the equal relative molecular mass of number is 3000-4000, hydroxyl value 26-
40mgKOH/g；Described dihydric alcohol is the one or more in 1,3 butylene glycol, 1,4- butanediols or 1,5- pentanediols；It is described
Isocyanates be the one or more in tolylene diisocyanate or 1,5- naphthalene diisocyanates；Described chitosan
N- deacetylations are 70-85%；Described ureaformaldehyde/SiO 2 composite microsphere is made of polymerisation induced coacervation of colloid method, it
Particle diameter is 30-100nm, the mandate hair for the Application No. 201210348849.9 that its specific preparation method is applied referring to Fudan University
The embodiment of specific embodiment 1 and 2 in bright patent " multilevel ordered single dispersing micron ball of mesopore-macropore and preparation method thereof ".
A kind of processing method of foregoing improvement bra steel ring, it comprises the following steps：
(1) preparation of modified thermoplastic polyurethane elastomeric material：The copolyether 48-52 parts measured are added into four mouthfuls of burnings
In bottle, logical nitrogen is vacuumized, 100 DEG C of removing moisture of temperature control, isocyanates 33-36 parts and organotin 3-5 parts is added, at the uniform velocity stirs
Mix, in 110 DEG C of prepolymerization reaction 1-2h, add dihydric alcohol 13-16 parts, ureaformaldehyde/SiO 2 composite microsphere 15-20 parts, shell afterwards
Glycan 5-8 parts are into flask, maintaining nitrogen purge under vacuum, and solution becomes more sticky after quick stirring reaction 1-2h, and stopping is taken out true
Empty and logical nitrogen, continue after reacting 3-5min, product is transferred in Teflon mould, is put into 110 DEG C of vacuum drying chambers
Middle curing 6-8h, it is stripped afterwards, pelletizing, it is standby after room temperature placement 8h；
(2) the modified thermoplastic polyurethane elastomer of gained is added in the barrel of injection machine, through 1500-2000r/s height
After speed stirs, in the mould that 185-200 DEG C is kneaded that injection customizes in advance, through cooling down, being molded, obtain improveing brassiere steel
Circle；Described mould is the two-part mould being correspondingly arranged, the closure that upper mould 6 is engaged with lower mould 7, and upper mould and lower mold portion
Dividing includes being used for the accommodating chamber 8 for accommodating the modified thermoplastic polyurethane elastomer, and is set in turn in the accommodating chamber 8
Some raised 9, according to different brassiere sizes and the setting demand of thickness, can adjust raised quantity and protrusion degree, so as to
The groove or pore structure for making the positive and negative surface formation of steel ring have different depth, so that steel ring can with bra base material ectonexine
Preferably it is closely joined together after close insertion through being bonded molding, further enhances the stationarity of steel ring in brassiere, avoid moving
It is dynamic.
One kind using brassiere made of foregoing improvement bra steel ring, the brassiere include by least two layers cup base material molding and
Into cup, described steel ring is located between two layers of cup base material, and the brassiere successively through cold patch, hot press moulding forms；
Described cup base material is sponge material or fiber cotton material.
Embodiment 2：The improvement bra steel ring and its processing method and utilize the improvement bra steel ring system that the present embodiment provides
Into brassiere, its overall technical architecture is substantially the same manner as Example 1, and difference is, the present embodiment provide improvement brassiere
The processing method of steel ring, it comprises the following steps：
(1) preparation of modified thermoplastic polyurethane elastomeric material：The 48 parts of addition four-hole boiling flasks of copolyether that will be measured
In, logical nitrogen is vacuumized, 100 DEG C of removing moisture of temperature control, 3 parts of 33 parts of isocyanates and organotin is added, at the uniform velocity stirs, in 110
DEG C prepolymerization reaction 1-2h, 16 parts of dihydric alcohol, 18 parts of ureaformaldehyde/SiO 2 composite microsphere, 5 parts of chitosan to flask are added afterwards
In, maintaining nitrogen purge under vacuum, solution becomes more sticky after quick stirring reaction 1-2h, and stopping vacuumizes and logical nitrogen, continues
After reacting 3-5min, product is transferred in Teflon mould, is put into 110 DEG C of vacuum drying chambers and cures 8h, take off afterwards
Mould, pelletizing, room temperature place 8h after it is standby；
(2) the modified thermoplastic polyurethane elastomer of gained is added in the barrel of injection machine, through 1500-2000r/s height
After speed stirs, in the mould that 195 DEG C are kneaded that injection customizes in advance, through cooling down, being molded, obtain improveing bra steel ring.
Embodiment 3：The improvement bra steel ring and its processing method and utilize the improvement bra steel ring system that the present embodiment provides
Into brassiere, its overall technical architecture and embodiment 1-2 are essentially identical, and difference is, the present embodiment provide improvement text
The processing method of chest steel ring, it comprises the following steps：
(1) preparation of modified thermoplastic polyurethane elastomeric material：The 50 parts of addition four-hole boiling flasks of copolyether that will be measured
In, logical nitrogen is vacuumized, 100 DEG C of removing moisture of temperature control, 5 parts of 35 parts of isocyanates and organotin is added, at the uniform velocity stirs, in 110
DEG C prepolymerization reaction 1-2h, 13 parts of dihydric alcohol, 20 parts of ureaformaldehyde/SiO 2 composite microsphere, 8 parts of chitosan to flask are added afterwards
In, maintaining nitrogen purge under vacuum, solution becomes more sticky after quick stirring reaction 1-2h, and stopping vacuumizes and logical nitrogen, continues
After reacting 3-5min, product is transferred in Teflon mould, is put into 110 DEG C of vacuum drying chambers and cures 6h, take off afterwards
Mould, pelletizing, room temperature place 8h after it is standby；
(2) the modified thermoplastic polyurethane elastomer of gained is added in the barrel of injection machine, through 1500-2000r/s height
After speed stirs, in the mould that 185 DEG C are kneaded that injection customizes in advance, through cooling down, being molded, obtain improveing bra steel ring.
Embodiment 4：The improvement bra steel ring and its processing method and utilize the improvement bra steel ring system that the present embodiment provides
Into brassiere, its overall technical architecture and embodiment 1-3 are essentially identical, and difference is, the present embodiment provide improvement text
The processing method of chest steel ring, it comprises the following steps：
(1) preparation of modified thermoplastic polyurethane elastomeric material：The 52 parts of addition four-hole boiling flasks of copolyether that will be measured
In, logical nitrogen is vacuumized, 100 DEG C of removing moisture of temperature control, 4 parts of 36 parts of isocyanates and organotin is added, at the uniform velocity stirs, in 110
DEG C prepolymerization reaction 1-2h, 15 parts of dihydric alcohol, 15 parts of ureaformaldehyde/SiO 2 composite microsphere, 7 parts of chitosan to flask are added afterwards
In, maintaining nitrogen purge under vacuum, solution becomes more sticky after quick stirring reaction 1-2h, and stopping vacuumizes and logical nitrogen, continues
After reacting 3-5min, product is transferred in Teflon mould, is put into 110 DEG C of vacuum drying chambers and cures 6h, take off afterwards
Mould, pelletizing, room temperature place 8h after it is standby；
(2) the modified thermoplastic polyurethane elastomer of gained is added in the barrel of injection machine, through 1500-2000r/s height
After speed stirs, in the mould that 190 DEG C are kneaded that injection customizes in advance, through cooling down, being molded, obtain improveing bra steel ring.
Embodiment 5：The improvement bra steel ring and its processing method and utilize the improvement bra steel ring system that the present embodiment provides
Into brassiere, its overall technical architecture and embodiment 1-3 are essentially identical, and difference is, the present embodiment provide improvement text
The processing method of chest steel ring, it comprises the following steps：
(1) preparation of modified thermoplastic polyurethane elastomeric material：The 49 parts of addition four-hole boiling flasks of copolyether that will be measured
In, logical nitrogen is vacuumized, 100 DEG C of removing moisture of temperature control, 4 parts of 34 parts of isocyanates and organotin is added, at the uniform velocity stirs, in 110
DEG C prepolymerization reaction 1-2h, 16 parts of dihydric alcohol, 16 parts of ureaformaldehyde/SiO 2 composite microsphere, 5 parts of chitosan to flask are added afterwards
In, maintaining nitrogen purge under vacuum, solution becomes more sticky after quick stirring reaction 1-2h, and stopping vacuumizes and logical nitrogen, continues
After reacting 3-5min, product is transferred in Teflon mould, is put into 110 DEG C of vacuum drying chambers and cures 7h, take off afterwards
Mould, pelletizing, room temperature place 8h after it is standby；
(2) the modified thermoplastic polyurethane elastomer of gained is added in the barrel of injection machine, through 1500-2000r/s height
After speed stirs, in the mould that 200 DEG C are kneaded that injection customizes in advance, through cooling down, being molded, obtain improveing bra steel ring.
The present invention is not limited to above-mentioned embodiment, and the specification is only shown as example, using with the above-mentioned reality of the present invention
Identical example or approximate structure, material, method are applied, the embodiment is changed and modified and limited without departing from claim
Fixed the scope of the present invention, and obtained bra steel ring and its processing method and brassiere product, the scope of the present invention it
It is interior.
Claims (10)
1. a kind of processing method for improveing bra steel ring, it is characterised in that comprise the following steps：
(1) preparation of modified thermoplastic polyurethane elastomeric material：The copolyether 48-52 parts measured are added into four-hole boiling flask
In, logical nitrogen is vacuumized, 100 DEG C of removing moisture of temperature control, isocyanates 33-36 parts and organotin 3-5 parts is added, at the uniform velocity stirs,
In 110 DEG C of prepolymerization reaction 1-2h, dihydric alcohol 13-16 parts, ureaformaldehyde/SiO 2 composite microsphere 15-20 parts, chitosan are added afterwards
5-8 parts are into flask, maintaining nitrogen purge under vacuum, and solution becomes more sticky after quick stirring reaction 1-2h, stopping vacuumize with
Logical nitrogen, continue after reacting 3-5min, product is transferred in Teflon mould, is put into ripe in 110 DEG C of vacuum drying chambers
Change 6-8h, afterwards the demoulding, pelletizing, it is standby after room temperature placement 8h；
(2) the modified thermoplastic polyurethane elastomeric material of gained is added in the barrel of injection machine, through 1500-2000r/s height
After speed stirs, in the mould that 185-200 DEG C is kneaded that injection customizes in advance, through cooling down, being molded, obtain improveing brassiere steel
Circle.
2. the processing method of improvement bra steel ring according to claim 1, it is characterised in that described mould sets to be corresponding
The two-part mould put, each mould part include being used for accommodating the chamber of the modified thermoplastic polyurethane elastomer, and according to
The secondary some projections for being arranged at the intracavitary and groove or pore structure being formed for positioning the positive and negative surface of steel ring.
3. a kind of obtained improvement bra steel ring of processing method as claimed in claim 1 or 2, it is characterised in that the steel ring is by changing
Property TPUE is integrally formed and is made after injecting mould, and the tow sides of the steel ring are from one end to another
Relatively intensive groove is correspondingly provided between end, makes outer layer in bra top body can be close after passing sequentially through the cold patch of glue spraying, molding
The embedded groove is so as to be connected and fix with the steel ring.
4. improvement bra steel ring according to claim 3, it is characterised in that described groove is pore structure.
5. improvement bra steel ring according to claim 4, it is characterised in that described steel ring is can be with human breast shape
Adaptable arc-shaped steel ring, and its arc length on the inside of breast is the 50-60% of the arc length on the outside of breast.
6. improvement bra steel ring according to claim 3, it is characterised in that the both ends of described steel ring are equipped with flat prolong
Extending portion, the length of the extension are the 2-4% of the entire length of the steel ring.
7. improvement bra steel ring according to claim 3, it is characterised in that described modified thermoplastic polyurethane elastomer
It is made up of the component of following parts by weight：Copolyether 48-52 parts, dihydric alcohol 13-16 parts, isocyanates 33-36 parts, ureaformaldehyde/bis-
Silica complex microsphere 15-20 parts, chitosan 5-8 parts, organotin 3-5 parts.
8. improvement bra steel ring according to claim 7, it is characterised in that described copolyether is oxirane/tetrahydrochysene
Furans copolyether, and the equal relative molecular mass of number is 3000-4000, hydroxyl value 26-40mgKOH/g；Described dihydric alcohol is 1,
One or more in 3- butanediols, 1,4- butanediols or 1,5- pentanediols；Described isocyanates is the isocyanide of benzylidene two
One or more in acid esters or 1,5- naphthalene diisocyanates；The N- deacetylations of described chitosan are 70-85%；Described
Ureaformaldehyde/SiO 2 composite microsphere uses polymerisation induced coacervation of colloid method to be made, its particle diameter is 30-100nm.
9. a kind of utilize the application that bra steel ring is improved made from the processing method of claim 1 or 2, it is characterised in that will
It is applied to brassiere, and the brassiere includes being located at described two by the cup that at least two layers of cup base material is molded, described steel ring
Between layer cup base material, and the brassiere forms through cold patch, hot press moulding successively.
10. the application of the obtained improvement bra steel ring of processing method according to claim 9, it is characterised in that described cup
Body base material is sponge material or fiber cotton material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510398545.7A CN106307645B (en) | 2015-07-07 | 2015-07-07 | Improve bra steel ring and its processing method, the brassiere product with the steel ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510398545.7A CN106307645B (en) | 2015-07-07 | 2015-07-07 | Improve bra steel ring and its processing method, the brassiere product with the steel ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106307645A CN106307645A (en) | 2017-01-11 |
| CN106307645B true CN106307645B (en) | 2018-01-16 |
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ID=57724926
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510398545.7A Expired - Fee Related CN106307645B (en) | 2015-07-07 | 2015-07-07 | Improve bra steel ring and its processing method, the brassiere product with the steel ring |
Country Status (1)
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| CN (1) | CN106307645B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2122112U (en) * | 1992-03-25 | 1992-11-18 | 江照政 | Handlebar cover |
| CN1228005C (en) * | 2002-11-11 | 2005-11-23 | 张穗龙 | Improved insert of brassiere |
| CN100391994C (en) * | 2006-05-16 | 2008-06-04 | 南京大学 | Preparation method of chitin modified water polyurethane elastic body |
| CN101497698A (en) * | 2009-01-22 | 2009-08-05 | 南京大学 | Preparation of chitosan-polyurethane ion complex elastomer material |
| JP5841055B2 (en) * | 2010-08-10 | 2016-01-06 | 株式会社カネカ | Curable composition |
| CN203873031U (en) * | 2014-05-27 | 2014-10-15 | 黄高兴 | Underwear and novel mould cup thereof |
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2015
- 2015-07-07 CN CN201510398545.7A patent/CN106307645B/en not_active Expired - Fee Related
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