CN207411539U - A kind of water-soluble non-woven fabrics gauze mask of environment-friendly type - Google Patents
A kind of water-soluble non-woven fabrics gauze mask of environment-friendly type Download PDFInfo
- Publication number
- CN207411539U CN207411539U CN201721360134.XU CN201721360134U CN207411539U CN 207411539 U CN207411539 U CN 207411539U CN 201721360134 U CN201721360134 U CN 201721360134U CN 207411539 U CN207411539 U CN 207411539U
- Authority
- CN
- China
- Prior art keywords
- protective cover
- fixedly connected
- nonwoven
- band
- drawstring
- 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
Links
Abstract
The utility model discloses a kind of water-soluble non-woven fabrics gauze masks of environment-friendly type; including protective cover and outer protective cover in first; the surface of protective cover is fixedly connected with nonwoven frenulum in described first; the surface of outer protective cover is fixedly connected with nonwoven filtration band; the surface of nonwoven filtration band is fixedly connected with protective cover in second, and the surface of protective cover is fixedly connected with the first drawstring in second.The water-soluble non-woven fabrics gauze mask of the environment-friendly type; when needing replacing mask use; protective cover, the first drawstring, the first ear band, the second drawstring, nonwoven in protective cover in disassemble first, nonwoven frenulum, nonwoven filtration band, second are adjusted in warm water more than frenulum, connection ring band and the second ear band degree of being placed on and degraded; economic and environment-friendly free of contamination effect is reached; so as to effectively solve general mask, strainability declines in use for some time, and the problem of do not wash clean the filter effect that can influence mask to a certain extent clearly.
Description
Technical field
The utility model is related to the water-soluble non-woven fabrics gauze masks of field of nonwoven fabric technology, specially a kind of environment-friendly type.
Background technology
Non-woven fabrics refers to non-woven cloth or is nonwoven fabric, is a kind of fabric that need not be spinned cotton and woven cloth and be formed, and simply will
Textile staple or long filament are oriented or randomizing, forms fibre net structure, then using the side such as mechanical, hot sticky or chemical
Method is reinforced, and has moisture-proof, ventilative, flexible, light, not combustion-supporting, easy decomposition, nontoxic nonirritant, rich in color, price
The features such as cheap, recyclable, water-soluble non-woven fabrics are one kind of non-woven fabrics, the various characteristics for not only possessing non-woven fabrics, but also
Easily degradation at a certain temperature, the articles for use of water-soluble non-woven fabrics manufacture are not only economic and environment-friendly, and using effect exceed it is general same
Class product, mask are usually used in daily life, and in more usual haze weather, mask is even more essential, in work
In the production process of factory, mask is also a kind of essential protection apparatus, but general mask is in use for some time
Strainability declines, and does not wash clean can influence the filter effect of mask to a certain extent clearly, so needing a kind of environmental protection
The water-soluble non-woven fabrics gauze mask of type.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of water-soluble non-woven fabrics gauze mask of environment-friendly type, solves
Strainability declines general mask in use for some time, and does not wash clean can influence mask to a certain extent clearly
The problem of filter effect.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs：A kind of water-soluble nothing of environment-friendly type
Woven fabric mask, including protective cover and outer protective cover in first, the surface of protective cover is fixedly connected with nonwoven frenulum in described first,
The surface of the outer protective cover is fixedly connected with nonwoven filtration band, and the surface of the nonwoven filtration band, which is fixedly connected in second, to be protected
Shield, the surface of protective cover is fixedly connected with the first drawstring in described second, and the surface of first drawstring is fixedly connected with
One ear band, one end of the first ear band are fixedly connected with the second drawstring, and the surface of protective cover is provided with snuffing in described second
Mouthful, the surface of protective cover is provided with pieza in described second, and the surface of protective cover is fixedly connected with nonwoven tune in described first
Save frenulum.
The surface of the outer protective cover is fixedly connected with ear loop, and the inner wall of the outer protective cover is fixedly connected with the first system
Band, the inner wall of the outer protective cover are fixedly connected with the second strap loop.
Preferably, the surface of protective cover is fixedly connected with connection ring band in described first, and the surface of the connection ring band is consolidated
Surely it is connected with the second ear band.
Preferably, the surface of the snuffing mouth is located at the surface of pieza, is set between the pieza and snuffing mouth
There is nonwoven filter bag.
Preferably, the surface of the outer protective cover offers filtering mouth, and the inner wall of the filtering mouth is fixedly connected with filtering
Net, the surface of the outer protective cover are arc-shaped shape.
Preferably, the quantity of the nonwoven filtration band be three, three nonwoven filtration bands with first in protective cover
Surface be fixedly connected, the surface of the surfaces of three nonwoven filtration bands with protective cover in second is fixedly connected.
Preferably, protective cover in described first, nonwoven frenulum, nonwoven filtration band, protective cover, the first drawstring, in second
The material that one ear band, the second drawstring, nonwoven adjust frenulum, connection ring band and the second ear band includes water-soluble non-woven fabrics.
(3) advantageous effect
The utility model provides a kind of water-soluble non-woven fabrics gauze mask of environment-friendly type, possesses following advantageous effect：
(1), the water-soluble non-woven fabrics gauze mask of the environment-friendly type is fixedly connected with nonwoven by the surface for setting protective cover in first
Frenulum, the inner wall of outer protective cover are fixedly connected with the first strap loop, and the surface of protective cover is fixedly connected with nonwoven adjusting in first
Frenulum, the inner wall of outer protective cover are fixedly connected with the second strap loop, when needing using mask, by nonwoven frenulum and the first frenulum
Ring bind will adjust frenulum and the second strap loop bind, when requiring replacement, nonwoven frenulum and the first strap loop unbinded, will
It adjusts frenulum to unbind with the second strap loop, achieved the effect that environmentally friendly practical and is replaced convenient for mask.
(2), the water-soluble non-woven fabrics gauze mask of the environment-friendly type is fixedly connected with nonwoven filtration by the surface for setting outer protective cover
Band, the surface of snuffing mouth is located at the surface of pieza, nonwoven filtration band is provided between pieza and snuffing mouth, when mask makes
Used time crosses air filtering and circulates respectively from snuffing mouth and pieza, achieved the effect that slow down respiratory pressure convenient for air circulation.
(3), the water-soluble non-woven fabrics gauze mask of the environment-friendly type is fixedly connected with first by the surface for setting protective cover in second
Drawstring, the surface of the first drawstring are fixedly connected with the first ear band, and one end of the first ear band is fixedly connected with the second drawstring, works as mask
In use, pulling the first drawstring and the second drawstring respectively by stretching the first ear band, protective cover is reached in second close to face
Practical effect.
(4), the water-soluble non-woven fabrics gauze mask of the environment-friendly type, by setting protective cover, nonwoven frenulum, nonwoven filtration in first
Band, protective cover, the first drawstring, the first ear band, the second drawstring, nonwoven adjust frenulum, connection ring band and the second ear band in second
Material includes water-soluble non-woven fabrics, when needing replacing mask in use, protective cover, nonwoven system in by disassemble first
Band, nonwoven filtration band, in second protective cover, the first drawstring, the first ear band, the second drawstring, nonwoven adjust frenulum, connection ring band and
It degrades in warm water more than second ear band degree of being placed on, has reached economic and environment-friendly free of contamination effect, so as to effectively solve
Strainability declines general mask in use for some time, and does not wash clean can influence mask to a certain extent clearly
The problem of filter effect.
Description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model outer protective cover structure front view；
Fig. 3 is the utility model outer protective cover structural side view；
Fig. 4 is protective cover structural side view in the utility model first.
In figure：Protective cover in 1 first, 2 outer protective covers, 3 nonwoven frenulums, 4 nonwoven filtration bands, protective cover, 6 in 5 second
One drawstring, 7 first ear bands, 8 second drawstrings, 9 snuffing mouths, 10 piezas, 11 nonwovens adjust frenulum, 12 ear loops, 13 first systems
Band, 14 second strap loops, 15 connection ring bands, 16 second ear bands, 17 filtering mouths, 18 filter screens.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
- 4 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of water-soluble non-woven fabrics gauze mask of environment-friendly type, bag
Include protective cover 1 and outer protective cover 2 in first, the surface of protective cover 1 is fixedly connected with nonwoven frenulum 3 in first, protection in first
The surface of cover 1 is fixedly connected with connection ring band 15, and the surface of connection ring band 15 is fixedly connected with the second ear band 16, outer protective cover 2
Surface be fixedly connected with nonwoven filtration band 4, the surface of nonwoven filtration band 4 is fixedly connected with protective cover 5 in second, nonwoven filtration
It it is three with 4 quantity, surface of three nonwoven filtration bands 4 with protective cover in first 1 is fixedly connected, three nonwoven filtration bands
Surface of 4 surface with protective cover in second 5 is fixedly connected, and the surface of protective cover 5 is fixedly connected with the first drawstring in second
6, the surface of the first drawstring 6 is fixedly connected with the first ear band 7, and one end of the first ear band 7 is fixedly connected with the second drawstring 8, passes through
The surface of protective cover 5 in second is set to be fixedly connected with the first drawstring 6, the surface of the first drawstring 6 is fixedly connected with the first ear band
7, one end of the first ear band 7 is fixedly connected with the second drawstring 8, when mask in use, pulling the respectively by stretching the first ear band 7
One drawstring 6 and the second drawstring 8 have achieved the effect that protective cover 5 is practical close to face in second, the surface of protective cover 5 in second
It is provided with snuffing mouth 9, the surface of protective cover 5 is provided with pieza 10 in second, and the surface of snuffing mouth 9 is being located at pieza 10 just
Top is provided with nonwoven filtration band 4 between pieza 10 and snuffing mouth 9, be fixedly connected with by the surface for setting outer protective cover 2
Nonwoven filtration band 4, the surface of snuffing mouth 9 are located at the surface of pieza 10, nonwoven are provided between pieza 10 and snuffing mouth 9
Filter bag 4 when mask circulates in use, crossing air filtering from snuffing mouth 9 and pieza 10, has reached and subtracted convenient for air circulation respectively
The effect of slow respiratory pressure, the surface of protective cover 1 is fixedly connected with nonwoven and adjusts frenulum 11 in first, protective cover 1, nothing in first
Protective cover 5, the first drawstring 6, the first ear band 7, the second drawstring 8, nonwoven adjust frenulum in spinning frenulum 3, nonwoven filtration band 4, second
11st, the material of 15 and second ear band 16 of connection ring band includes water-soluble non-woven fabrics, by setting protective cover 1, nonwoven in first
Protective cover 5 in frenulum 3, nonwoven filtration band 4, second, the first drawstring 6, the first ear band 7, the second drawstring 8, nonwoven adjust frenulum 11,
The material of 15 and second ear band 16 of connection ring band includes water-soluble non-woven fabrics, when needing replacing mask in use, will be under dismounting
Protective cover 1, nonwoven frenulum 3 in first come, protective cover 5 in nonwoven filtration band 4, second, the first drawstring 6, the first ear band 7, the
Two drawstrings 8, nonwoven adjust frenulum 11,15 and second ear band 16 of connection ring band is placed in 50 degree or more of warm water and degrades, and reach
Economic and environment-friendly free of contamination effect.
The surface of outer protective cover 2 is fixedly connected with ear loop 12, and the surface of outer protective cover 2 offers filtering mouth 17, filtering
The inner wall of mouth 17 is fixedly connected with filter screen 18, and the surface of outer protective cover 2 is arc-shaped shape, and the inner wall of outer protective cover 2, which is fixed, to be connected
The first strap loop 13 is connected to, the inner wall of outer protective cover 2 is fixedly connected with the second strap loop 14, by setting protective cover 1 in first
Surface be fixedly connected with nonwoven frenulum 3, the inner wall of outer protective cover 2 is fixedly connected with the first strap loop 13, protective cover 1 in first
Surface be fixedly connected with nonwoven and adjust frenulum 11, the inner wall of outer protective cover 2 is fixedly connected with the second strap loop 14, when needing to make
During with mask, by 3 and first strap loop of nonwoven frenulum, 13 bind, 11 and second strap loop of frenulum, 14 bind will be adjusted, work as needs
During replacement, nonwoven frenulum 3 and the first strap loop 13 are unbinded, frenulum 11 will be adjusted and unbinded with the second strap loop 14, reached ring
Effect practical and that mask is convenient for replace is protected, so as to effectively solve general mask strainability in use for some time
The problem of declining, and not washing clean the filter effect that can influence mask to a certain extent clearly.
Operation principle：When the environment-friendly type water-soluble non-woven fabrics gauze mask in use, when need using mask when, by nonwoven frenulum
3 and 13 bind of the first strap loop, 11 and second strap loop of frenulum, 14 bind will be adjusted, when mask in use, passing through stretching first
Ear band 7 pulls the first drawstring 6 and the second drawstring 8 respectively, crosses air filtering and circulates respectively from snuffing mouth 9 and pieza 10, works as needs
During replacement, nonwoven frenulum 3 and the first strap loop 13 are unbinded, frenulum 11 will be adjusted and unbinded with the second strap loop 14, it will be under dismounting
Protective cover 1, nonwoven frenulum 3 in first come, protective cover 5 in nonwoven filtration band 4, second, the first drawstring 6, the first ear band 7, the
Two drawstrings 8, nonwoven adjust frenulum 11,15 and second ear band 16 of connection ring band is placed in 50 degree or more of warm water and degrades, so as to
The replacement for completing the water-soluble non-woven fabrics gauze mask of entire environment-friendly type uses process.
In conclusion the water-soluble non-woven fabrics gauze mask of the environment-friendly type, is fixedly connected by the surface for setting protective cover 1 in first
There is a nonwoven frenulum 3, the inner wall of outer protective cover 2 is fixedly connected with the first strap loop 13, and the surface of protective cover 1 is fixedly connected in first
There is nonwoven to adjust frenulum 11, the inner wall of outer protective cover 2 is fixedly connected with the second strap loop 14, when needing using mask, by nothing
3 and first strap loop of frenulum, 13 bind is spun, 11 and second strap loop of frenulum, 14 bind will be adjusted, when requiring replacement, by nonwoven
Frenulum 3 is unbinded with the first strap loop 13, will be adjusted frenulum 11 and be unbinded with the second strap loop 14, has been reached environmentally friendly practical and has been convenient for mouth
The effect replaced is covered, nonwoven filtration band 4 is fixedly connected with by the surface for setting outer protective cover 2, the surface of snuffing mouth 9 is located at mouth
The surface of suction inlet 10 is provided with nonwoven filtration band 4 between pieza 10 and snuffing mouth 9, when mask in use, crossing air filtering point
It does not circulate from snuffing mouth 9 and pieza 10, has achieved the effect that slow down respiratory pressure convenient for air circulation, by setting in second
The surface of protective cover 5 is fixedly connected with the first drawstring 6, and the surface of the first drawstring 6 is fixedly connected with the first ear band 7, the first ear band 7
One end be fixedly connected with the second drawstring 8, when mask in use, pulling the first drawstring 6 and the respectively by stretching the first ear band 7
Two drawstrings 8 have achieved the effect that protective cover 5 is practical close to face in second, by setting protective cover 1, nonwoven frenulum in first
3rd, protective cover 5, the first drawstring 6, the first ear band 7, the second drawstring 8, nonwoven adjust frenulum 11, connection in nonwoven filtration band 4, second
The material of 15 and second ear band 16 of annulus includes water-soluble non-woven fabrics, when needing replacing mask in use, will disassemble
Protective cover 1 in first, nonwoven frenulum 3, protective cover 5, the first drawstring 6, the first ear band 7, second are drawn in nonwoven filtration band 4, second
Rope 8, nonwoven adjust frenulum 11,15 and second ear band 16 of connection ring band is placed in 50 degree or more of warm water and degrades, and have reached warp
It helps environment friendly and pollution-free effect, so as to effectively solve general mask, strainability declines in use for some time, and
And the problem of not washing clean the filter effect that can influence mask to a certain extent clearly.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that in the case where not departing from the principle of the utility model and spirit can these embodiments be carried out with a variety of variations, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of water-soluble non-woven fabrics gauze mask of environment-friendly type, including protective cover (1) and outer protective cover (2) in first, it is characterised in that：
The surface of protective cover (1) is fixedly connected with nonwoven frenulum (3) in described first, and the surface of the outer protective cover (2) is fixedly connected
There is nonwoven filter bag (4), the surface of the nonwoven filtration band (4) is fixedly connected with protective cover in second (5), is protected in described second
The surface of shield (5) is fixedly connected with the first drawstring (6), and the surface of first drawstring (6) is fixedly connected with the first ear band
(7), one end of the first ear band (7) is fixedly connected with the second drawstring (8), and the surface of protective cover (5) is set in described second
There is a snuffing mouth (9), the surface of protective cover (5) is provided with pieza (10) in described second, the table of protective cover (1) in described first
Face is fixedly connected with nonwoven and adjusts frenulum (11)；
The surface of the outer protective cover (2) is fixedly connected with ear loop (12), and the inner wall of the outer protective cover (2) is fixedly connected with
First strap loop (13), the inner wall of the outer protective cover (2) are fixedly connected with the second strap loop (14).
2. a kind of water-soluble non-woven fabrics gauze mask of environment-friendly type according to claim 1, it is characterised in that：Protection in described first
The surface of cover (1) is fixedly connected with connection ring band (15), and the surface of the connection ring band (15) is fixedly connected with the second ear band
(16)。
3. a kind of water-soluble non-woven fabrics gauze mask of environment-friendly type according to claim 1, it is characterised in that：The snuffing mouth (9)
Surface be located at the surface of pieza (10), be provided with nonwoven filtration band between the pieza (10) and snuffing mouth (9)
(4)。
4. a kind of water-soluble non-woven fabrics gauze mask of environment-friendly type according to claim 1, it is characterised in that：The outer protective cover
(2) surface offers filtering mouth (17), and the inner wall of the filtering mouth (17) is fixedly connected with filter screen (18), the outer protection
The surface of cover (2) is arc-shaped shape.
5. a kind of water-soluble non-woven fabrics gauze mask of environment-friendly type according to claim 1, it is characterised in that：The nonwoven filtration band
(4) quantity is three, and surface of three nonwoven filtration bands (4) with protective cover in first (1) is fixedly connected, three institutes
Surface of the surface of nonwoven filtration band (4) with protective cover in second (5) is stated to be fixedly connected.
6. a kind of water-soluble non-woven fabrics gauze mask of environment-friendly type according to claim 1, it is characterised in that：Protection in described first
Cover (1), nonwoven frenulum (3), nonwoven filtration band (4), protective cover (5), the first drawstring (6), the first ear band (7), second in second
The material that drawstring (8), nonwoven adjust frenulum (11), connection ring band (15) and the second ear band (16) includes water-soluble non-woven fabrics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721360134.XU CN207411539U (en) | 2017-10-21 | 2017-10-21 | A kind of water-soluble non-woven fabrics gauze mask of environment-friendly type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721360134.XU CN207411539U (en) | 2017-10-21 | 2017-10-21 | A kind of water-soluble non-woven fabrics gauze mask of environment-friendly type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207411539U true CN207411539U (en) | 2018-05-29 |
Family
ID=62312186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721360134.XU Expired - Fee Related CN207411539U (en) | 2017-10-21 | 2017-10-21 | A kind of water-soluble non-woven fabrics gauze mask of environment-friendly type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207411539U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111227356A (en) * | 2020-03-09 | 2020-06-05 | 吉祥三宝高科纺织有限公司 | Membrane mask |
| WO2022047072A1 (en) * | 2020-08-26 | 2022-03-03 | Solved Inc. | Wearable items formed from water-dissolvable material |
-
2017
- 2017-10-21 CN CN201721360134.XU patent/CN207411539U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111227356A (en) * | 2020-03-09 | 2020-06-05 | 吉祥三宝高科纺织有限公司 | Membrane mask |
| CN111227356B (en) * | 2020-03-09 | 2021-09-24 | 吉祥三宝高科纺织有限公司 | Membrane mask |
| WO2022047072A1 (en) * | 2020-08-26 | 2022-03-03 | Solved Inc. | Wearable items formed from water-dissolvable material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207411539U (en) | A kind of water-soluble non-woven fabrics gauze mask of environment-friendly type | |
| CN207722132U (en) | A kind of weaving textile chlorination equipment | |
| KR20110032055A (en) | Manufacturing method a korean paper mask | |
| CN208838444U (en) | A kind of sustained release negative oxygen ion flame-retardant and anti-static is medical every curtain | |
| CN208260425U (en) | A kind of weaving vehicle device dust-extraction unit | |
| CN207775455U (en) | A kind of antibacterial deodourizing denim | |
| CN205802630U (en) | A kind of multiple field protection against the tide weaving roll stand | |
| CN205970222U (en) | Energy -conserving environment -friendly fabric is used in life | |
| CN206887345U (en) | A kind of weaving loom weaving dirt collection device | |
| CN207767580U (en) | A kind of novel anti-wadding mask | |
| CN208609967U (en) | A kind of environmental protection carbon fiber mask | |
| CN207749207U (en) | A kind of novel high tenacity ecology nonwoven fabric manufacture filtering Windspout knot screen | |
| CN206778027U (en) | A kind of high filtration PM2.5 nonwoven fabric construct | |
| CN205063774U (en) | Air purification window screening of making by alloy silk | |
| CN209718802U (en) | A kind of super soft non-woven fabrics | |
| CN202347174U (en) | Grid ring for antistatic compact spinning | |
| CN209679673U (en) | A kind of filter cloth for band filter for just clearing up durable type | |
| CN111590984A (en) | Environment-friendly three-in-one material for laminating hot melt adhesive for mask and preparation method thereof | |
| CN212332018U (en) | Reusable sterile non-woven fabric | |
| CN208927826U (en) | Fire-retardant filter cotton | |
| CN110216927A (en) | A kind of environmental protection breathable compound nonwoven cloth | |
| CN206078793U (en) | Prevent mosquito bites's screen cloth | |
| CN205587412U (en) | Weaving dirt collection device | |
| CN208857451U (en) | Needing machine waste silk clears up air duct and needing machine | |
| CN209714582U (en) | For producing the circular blow wind filter device of High Tenacity Low Shrinkage Polyester Staple |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 Termination date: 20181021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |