CN112826160B - Color-changing mask and color-changing warning method for mask service time - Google Patents
Color-changing mask and color-changing warning method for mask service time Download PDFInfo
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- CN112826160B CN112826160B CN202011360256.5A CN202011360256A CN112826160B CN 112826160 B CN112826160 B CN 112826160B CN 202011360256 A CN202011360256 A CN 202011360256A CN 112826160 B CN112826160 B CN 112826160B
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000008859 change Effects 0.000 claims abstract description 38
- 230000008569 process Effects 0.000 claims abstract description 14
- 239000004744 fabric Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 4
- 238000005562 fading Methods 0.000 claims description 28
- 239000004745 nonwoven fabric Substances 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 230000002427 irreversible effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000007 visual effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 35
- 230000006870 function Effects 0.000 description 6
- 239000011521 glass Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 206010011469 Crying Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/02—Layered materials
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2500/00—Materials for garments
- A41D2500/30—Non-woven
Abstract
The invention discloses a color-changing mask and a color-changing warning method for the service time of the mask, the color-changing mask comprises a main body and a hanging belt, wherein the main body comprises a skin-friendly layer, a melt-blown cloth layer and a non-woven cloth layer, the non-woven cloth layer is printed with a color-changing layer, the color-changing layer comprises a gradual change part which is colorless when being dried and a prompt part which is colored when being dried, the gradual change part is drawn by water-color-development humidity-sensitive ink, and the prompt part is drawn by water-color-development humidity-sensitive ink; when the mask is used, a user recognizes the front face and the back face of the mask through the prompting part, the mask absorbs water vapor in the breathing process, the gradual change part gradually develops color from the middle of the mask main body to the two sides, and the prompting color of the prompting part gradually disappears from the middle of the mask main body to the two sides. The color-changing mask and the color-changing warning method for the service time of the mask, which are obtained by the invention, are convenient to manufacture, reduce the influence of the color-changing structure on the air tightness and wearing comfort of the mask, and can give more visual and accurate prompt information.
Description
Technical Field
The invention relates to a mask, in particular to a color-changing mask and a color-changing warning method for the service time of the mask.
Background
In order to cope with atmospheric pollution and large-scale infectious diseases, masks are increasingly required for daily life of people, however, the filtering capability of the masks is weakened along with time, and when the masks are worn for a certain period of time, the masks lose their protective functions, so that a mask with a time prompting capability is required.
Chinese patent CN200820024394.4 discloses a color-changing mask with color-changing filter paper and transparent glass paper added on the mask, the mask has the following disadvantages: 1. in order to ensure reliable color change of the color-changing filter paper, the color-changing filter paper is added between the inner filter layer and the outer filter layer of the mask as an interlayer, so that the quality requirement on the color-changing filter paper is high, the production process is greatly changed, and the production cost is increased; 2. the size of the glass paper added at the upper part and the lower part of the mask is difficult to determine, when the glass paper is narrower, the color change of the color-changing paper is not easy to observe due to reflection, water vapor and the like, and when the size of the mask is larger, the service life and the air permeability of the mask are influenced, and in addition, the process has higher requirements for ensuring the safety and the leak-free of the joint of the glass paper and other parts of the mask; 3. the color-changing filter paper is adopted for replacement prompt, so that a user cannot accurately judge the using state of the mask in actual use, and the mask can only be replaced in advance to cause waste for ensuring safety.
Therefore, the color-changing mask has complex processing technology, high material requirement and high cost of mass production, can cause waste and can not meet the increasingly larger use requirement.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide the color-changing mask which is convenient to manufacture and can accurately prompt a user and the color-changing warning method of the mask using time.
In order to achieve the above purpose, the color-changing mask comprises a main body and a hanging belt, wherein the main body comprises a skin-friendly layer, a melt-blown cloth layer and a non-woven cloth layer, the non-woven cloth layer is printed with the color-changing layer, the color-changing layer comprises a gradual change part in a colorless state when being dried and a prompt part in a color when being dried, the gradual change part is drawn by water-sensitive color-developing humidity-sensitive ink, the prompt part is drawn by water-sensitive color-sensitive ink, and the gradual change part and the prompt part extend outwards from the middle of the main body at positions corresponding to the mouth and the nose of a user.
In order to facilitate quantitative observation of the using state of the mask, the gradual change part comprises humidity sensing color development blocks which are arranged on the surface of the non-woven fabric layer in an equal interval array, and the prompting part comprises a plurality of humidity sensing color development blocks which are arranged on the surface of the non-woven fabric layer in an equal interval array.
In order to more intuitively show the use state of the mask, the queues formed by the humidity sensing color development blocks are arc-shaped on the surface of the non-woven fabric layer, and the queues formed by the humidity sensing color development blocks are arc-shaped on the surface of the non-woven fabric layer.
In order to further intuitively show the use state of the mask, the reminding effect of the mask replacement prompt is enhanced, the humidity-sensitive color-developing blocks and the humidity-sensitive color-fading blocks are all round, the humidity-sensitive color-developing blocks and the humidity-sensitive color-fading blocks which are positioned at two ends of each queue are solid circles, and the other humidity-sensitive color-developing blocks and the humidity-sensitive color-fading blocks are all circular.
In order to avoid the mask from being used repeatedly by mistake, the surface side of the skin-friendly layer is printed with a warning color-changing coating by adopting water-sensitive color-developing humidity-sensitive ink, and the gradual change part, the prompt part and the warning color-changing coating are all made of irreversible humidity-sensitive ink.
The color-changing warning method for the mask using time comprises the steps that the color-changing mask is used, before the mask is used for the first time, the gradual change part is colorless, and the prompting part presents non-transparent prompting color; when the mask is used, a user recognizes the front face and the back face of the mask through the prompting part, after the mask is worn, the mask absorbs vapor in the breathing process, the gradual change part gradually develops from the middle of the mask main body to the outside, and the prompting color of the prompting part gradually disappears from the middle of the mask main body to the outside.
In order to intuitively show the service time of the mask, the color-changing time of each moisture-sensitive color-developing block is x minutes, the complete color-changing time of each moisture-sensitive color-changing block is y minutes, and the color-changing warning process of the mask is as follows: a. when the wearing time t of the mask reaches x minutes, the shape and the color of the humidity sensing color development block positioned in the middle of the mask main body are completely displayed;
b. when the wearing time t of the mask reaches y minutes, the shape and the color of the damp-sensitive fading block positioned in the middle of the mask main body completely disappear;
c. when the wearing time t of the mask reaches 2x minutes, the shape and the color of the humidity sensing and developing block adjacent to the previous humidity sensing and developing block completely appear;
d. when the wearing time t of the mask reaches 2y minutes, the shape and the color of the damp-sensitive fading block adjacent to the last completely-displayed damp-sensitive fading block completely disappear;
e. repeating the process c and the process d until the shapes and the colors of all the moisture sensitive color development blocks are completely displayed and the shapes and the colors of all the moisture sensitive color development blocks are completely disappeared, and the mask reaches the longest wearing time.
When the mask reaches the longest wearing time, the solid round humidity-sensitive color-developing block completely appears, and the solid round humidity-sensitive color-fading block completely disappears.
The color-changing mask and the color-changing warning method for the service time of the mask, which are obtained by the invention, realize the effective prompt of the service time of the mask by printing the humidity-sensitive ink on the surface of the mask, and have the advantages that compared with the prior mask with the color-changing function, the color-changing mask has the following advantages: 1. the ink is directly printed on the non-woven fabric layer at the outermost layer in use, other structures of the mask are not modified, the manufacturing is convenient, the influence of the color-changing structure on the air tightness and wearing comfort of the mask is reduced, and the safety of the mask is ensured while the color-changing prompt function is provided; 2. through evenly distributed's sense wet color development piece and sense wet fading piece, realize the timing function to gauze mask live time, compare traditional product, utilize simpler structure, give more directly perceived accurate prompt message, make the user estimate the time of changing the gauze mask more accurately, improve the availability factor of gauze mask, reduce the waste of gauze mask.
Drawings
FIG. 1 is an exploded view of a color-changing mask according to example 1 of the color-changing warning method for the use time of the mask of the present invention;
fig. 2 is a front view of the color-changing mask of example 1 after the maximum use time is reached;
FIG. 3 is a front view of the color-changing mask of example 2 of the color-changing warning method for use time of the color-changing mask of the present invention before use;
fig. 4 is a front view of the color-changing mask of example 2 during use;
fig. 5 is a front view of the color-changing mask before use in embodiment 3 of the color-changing warning method for use time of the color-changing mask of the present invention;
FIG. 6 is a front view of the color shifting mask of example 3 after the maximum use time is reached;
fig. 7 is a rear view of the color-changing mask of example 3 after the maximum use time is reached.
In the figure: the main body 1, the hanging belt 2, the decorative pattern 3, the non-woven fabric layer 10, the melt-blown cloth layer 11, the skin-friendly layer 12, the gradual change part 13, the prompt part 14, the humidity-sensitive color development block 130 and the humidity-sensitive color fading block 140.
Detailed Description
The invention will be further described with reference to the drawings and examples.
Example 1:
the color-changing mask described in this embodiment, as shown in fig. 1 and fig. 2, comprises a main body 1 and a hanging belt 2, wherein the main body 1 comprises a skin-friendly layer 12, a melt-blown cloth layer 11 and a non-woven cloth layer 10, the non-woven cloth layer 10 is printed with a color-changing layer, as shown in fig. 1, the color-changing layer comprises a gradual change part 13 in a colorless state when being dried and a prompt part 14 in a color when being dried, the gradual change part 13 is drawn by water-color-development humidity-sensitive ink, the prompt part 14 is drawn by water-color-development humidity-sensitive ink, and the gradual change part 13 and the prompt part 14 extend outwards from the middle of the main body 1 corresponding to the mouth and nose of a user.
The embodiment provides a color-changing warning method for the service time of a mask, which comprises the steps that the color-changing mask is used, before the mask is used for the first time, the gradual change part 13 is colorless, and the prompting part 14 presents non-transparent prompting color; when the mask is used, a user recognizes the front and the back of the mask through the prompting part 14, and when the mask is worn, the mask absorbs vapor in the breathing process, the gradual change part 13 gradually develops from the middle of the mask body 1 to the outside, and the prompting color of the prompting part 14 gradually disappears from the middle of the mask body 1 to the outside.
In actual use, as shown in fig. 2, when the gradation portion 13 is completely colored or the prompting portion 14 is completely disappeared, the user needs to replace the mask.
The color-changing mask and the color-changing warning method for the service time of the mask, provided by the embodiment, have the advantages that the color-changing mask is printed with the moisture-sensitive ink on the surface of the mask to effectively prompt the service time of the mask, compared with the existing mask with the color-changing function, and the color-changing mask has the advantages that the ink is directly printed on the non-woven fabric layer 10 on the outermost layer in use, other structures of the mask are not modified, the manufacturing is convenient, the influence of the color-changing structure on the air tightness and wearing comfort of the mask is reduced, and the safety of the mask is ensured while the color-changing prompt function is provided.
Example 2:
as shown in fig. 3, in addition to the features described in embodiment 1, in order to facilitate quantitative observation of the usage state of the mask, the gradual change portion 13 includes humidity sensitive color development blocks 130 arranged in equally spaced rows on the surface of the nonwoven fabric layer 10, and the prompt portion 14 includes a plurality of humidity sensitive color development blocks 140 arranged in equally spaced rows on the surface of the nonwoven fabric layer 10.
In addition to the features described in embodiment 1, in order to intuitively display the usage time of the mask, the color-changing time of each humidity-sensitive color-developing block 130 is x minutes, the complete color-changing time of each humidity-sensitive color-fading block 140 is y minutes, and the color-changing warning process of the mask is as follows: a. when the mask is worn for x minutes, the shape and color of the humidity sensing and developing block 130 positioned in the middle of the mask main body 1 are completely displayed;
b. when the wearing time t of the mask reaches y minutes, the shape and color of the humidity sensing fading block 140 positioned in the middle of the mask body 1 completely disappear;
c. when the mask is worn for 2x minutes, the shape and color of the humidity sensitive color development block 130 adjacent to the previous completely developed humidity sensitive color development block 130 are completely developed, as shown in fig. 4;
d. when the mask is worn for 2y minutes, the shape and color of the humidity sensitive color fading block 140 adjacent to the previous completely developed humidity sensitive color fading block 140 completely disappears, as shown in fig. 4;
e. process c and process d are repeated until all of the shape and color of the humidity sensitive color development block 130 are completely developed and all of the shape and color of the humidity sensitive color development block 140 are completely disappeared, at which point the mask reaches its maximum wearing time.
In this embodiment, the color change time of each humidity sensitive color development block 130 is 20 minutes, the total color change time of each humidity sensitive color fading block 140 is 20 minutes, and the maximum wearing time of the mask shown in fig. 3 is 80 minutes.
According to the color-changing mask and the color-changing warning method for the mask service time, through the humidity-sensing color-developing blocks 130 and the humidity-sensing color-fading blocks 140 which are uniformly distributed, the timing function of the mask service time is achieved, compared with a traditional product, the color-changing mask and the color-changing warning method for the mask service time utilize a simpler structure, more visual and accurate prompt information is given, a user can estimate the time for replacing the mask more accurately, the service efficiency of the mask is improved, and the waste of the mask is reduced.
Example 3:
in addition to the features described in embodiment 2, as shown in fig. 5, in order to more intuitively show the usage state of the mask, the queues formed by the humidity sensing color development blocks 130 are arc-shaped on the surface of the non-woven fabric layer 10, and the queues formed by the humidity sensing color development blocks 140 are arc-shaped on the surface of the non-woven fabric layer 10; in this embodiment, a decorative pattern 3 that does not change color is printed on the surface of the mask nonwoven fabric layer 10, the humidity-sensitive color-changing block 140 and the decorative pattern 3, the humidity-sensitive color-developing block 130 and the decorative pattern 3 are all arranged together to form a U shape, and the two U-shaped arrangement openings face opposite directions, when the user wears the mask nonwoven fabric layer, the humidity-sensitive color-changing block 140 and the decorative pattern 3 form a smiling face pattern in cooperation with a face, and when the mask nonwoven fabric layer is used for a specified period of time, the humidity-sensitive color-developing block 130 develops color and forms a crying face pattern in cooperation with the decorative pattern 3.
In order to further intuitively show the use state of the mask, the reminding effect of the mask replacement prompt is enhanced, as shown in fig. 5, the humidity sensing color developing blocks 130 and the humidity sensing color fading blocks 140 are all round, the humidity sensing color developing blocks 130 and the humidity sensing color fading blocks 140 positioned at two ends of the respective queues are solid circles, and the other humidity sensing color developing blocks 130 and the humidity sensing color fading blocks 140 are all circular.
In order to avoid the mask from being used repeatedly by mistake, as shown in fig. 7, the surface side of the skin-friendly layer 12 is printed with an alarm color-changing coating 4 by adopting water-sensitive color-developing humidity-sensitive ink, and the gradual change part 13, the prompt part 14 and the alarm color-changing coating are all made of irreversible humidity-sensitive ink.
In addition to the features described in embodiment 2, the color-changing warning method for mask use time provided in this embodiment, when the mask reaches its longest wearing time, the solid round humidity-sensitive color-developing block 130 completely appears, the solid round humidity-sensitive color-developing block 140 completely disappears, as shown in fig. 6, and the warning color-changing coating 4 also completely appears on the skin-friendly layer surface, as shown in fig. 7.
In this embodiment, the color change time of each humidity sensitive color development block 130 is 30 minutes, the total color change time of each humidity sensitive color fading block 140 is also 30 minutes, and the maximum wearing time of the mask shown in fig. 3 is 120 minutes.
The color-changing mask and the color-changing warning method for the service time of the mask further improve the appearance of the mask, improve the prompting effect, and simultaneously adopt irreversible humidity-sensitive ink to avoid the mask from being recycled and reused in a illegal way.
Claims (3)
1. The color-changing warning method for the mask using time comprises a main body (1) and a hanging belt (2), wherein the main body (1) comprises a skin-friendly layer (12), a melt-blown cloth layer (11) and a non-woven cloth layer (10), and is characterized in that the non-woven cloth layer (10) is printed with a color-changing layer, the color-changing layer comprises a gradual change part (13) which is in a colorless state when being dried and a prompt part (14) which is in a color when being dried, the gradual change part (13) is drawn by water-sensitive color-developing humidity-sensitive ink, the prompt part (14) is drawn by water-sensitive humidity-sensitive ink, and the gradual change part (13) and the prompt part (14) extend outwards from the middle of the main body (1) and the position corresponding to the mouth and nose of a user; the surface side of the skin-friendly layer (12) is printed with a warning color-changing coating by adopting water-sensitive color-developing humidity-sensitive ink, and the gradual change part (13), the prompting part (14) and the warning color-changing coating are all made of irreversible humidity-sensitive ink; the gradual change part (13) comprises humidity sensing color development blocks (130) which are arrayed on the surface of the non-woven fabric layer (10) at equal intervals, the prompting part (14) comprises a plurality of humidity sensing color fading blocks (140) which are arrayed on the surface of the non-woven fabric layer (10) at equal intervals, and before the mask is used for the first time, the gradual change part (13) is colorless and the prompting part (14) presents non-transparent prompting color; when the mask is used, a user identifies the front side and the back side of the mask through the prompting part (14), after the mask is worn, the mask absorbs water vapor in the breathing process, the gradual change part (13) gradually develops color outwards from the middle of the mask main body (1), and the prompting color of the prompting part (14) gradually disappears outwards from the middle of the mask main body (1); the color change time of each humidity sensing color development block (130) is x minutes, the complete color change time of each humidity sensing color fading block (140) is y minutes, and the color change warning process of the mask is as follows:
a. when the wearing time t of the mask reaches x minutes, the shape and the color of the humidity sensing color development block (130) positioned in the middle of the mask main body (1) are completely developed;
b. when the wearing time t of the mask reaches y minutes, the shape and the color of the humidity sensing fading block (140) positioned in the middle of the mask main body (1) completely disappear;
c. when the wearing time t of the mask reaches 2x minutes, the shape and the color of the humidity sensing and developing block (130) adjacent to the previous humidity sensing and developing block (130) which is completely developed are completely developed;
d. when the wearing time t of the mask reaches 2y minutes, the shape and the color of the damp-sensitive fading block (140) adjacent to the last completely-displayed damp-sensitive fading block (140) completely disappear;
e. repeating the process c and the process d until the shape and the color of all the moisture sensitive color development blocks (130) are completely developed and the shape and the color of all the moisture sensitive color development blocks (140) are completely disappeared, and the mask reaches the longest wearing time.
2. The method for warning color change of mask using time according to claim 1, wherein the humidity sensitive color developing blocks (130) and the humidity sensitive color fading blocks (140) on the used color change mask are all round, the humidity sensitive color developing blocks (130) and the humidity sensitive color fading blocks (140) at two ends of the respective queues are solid circles, the other humidity sensitive color developing blocks (130) and the humidity sensitive color fading blocks (140) are all circular, when the mask reaches the longest wearing time, the humidity sensitive color developing blocks (130) in the solid circles are completely developed, and the humidity sensitive color fading blocks (140) in the solid circles are completely disappeared.
3. The method for warning color change of mask use time according to claim 1, wherein the queues formed by the humidity sensing color development blocks (130) are arc-shaped on the surface of the non-woven fabric layer (10), and the queues formed by the humidity sensing color development blocks (140) are arc-shaped on the surface of the non-woven fabric layer (10).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011360256.5A CN112826160B (en) | 2020-11-27 | 2020-11-27 | Color-changing mask and color-changing warning method for mask service time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011360256.5A CN112826160B (en) | 2020-11-27 | 2020-11-27 | Color-changing mask and color-changing warning method for mask service time |
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| Publication Number | Publication Date |
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| CN112826160A CN112826160A (en) | 2021-05-25 |
| CN112826160B true CN112826160B (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011360256.5A Active CN112826160B (en) | 2020-11-27 | 2020-11-27 | Color-changing mask and color-changing warning method for mask service time |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113519939B (en) * | 2021-09-17 | 2021-12-28 | 中南大学 | Mouth-nose mask for visible target collection of novel coronavirus sample and visible warning |
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| CN201219517Y (en) * | 2008-06-23 | 2009-04-15 | 葛秀林 | Disposable color-changing respirator |
| CN106037072A (en) * | 2016-05-27 | 2016-10-26 | 福州宏冠智圣进出口有限公司 | Dupont paper color-changing raincoat |
| CN106586206A (en) * | 2016-12-22 | 2017-04-26 | 广东溢达纺织有限公司 | Humidity sensitivity discoloring character-displaying plastic bag and manufacturing method thereof |
| CN207590112U (en) * | 2017-10-30 | 2018-07-10 | 瓶子（厦门）科技有限公司 | A kind of changeable colour Respirator structure |
| CN210747393U (en) * | 2019-06-13 | 2020-06-16 | 中山大学孙逸仙纪念医院 | Moist color-changing mask |
| CN111528928A (en) * | 2020-07-13 | 2020-08-14 | 深圳华大基因股份有限公司 | Sampling mask |
| CN211910640U (en) * | 2020-03-17 | 2020-11-13 | 上海理工大学 | Mask with recognition function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10689804B2 (en) * | 2018-04-30 | 2020-06-23 | Robert T Rubin | Textile product having latent image that slowly appears following repeated washings |
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2020
- 2020-11-27 CN CN202011360256.5A patent/CN112826160B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201219517Y (en) * | 2008-06-23 | 2009-04-15 | 葛秀林 | Disposable color-changing respirator |
| CN106037072A (en) * | 2016-05-27 | 2016-10-26 | 福州宏冠智圣进出口有限公司 | Dupont paper color-changing raincoat |
| CN106586206A (en) * | 2016-12-22 | 2017-04-26 | 广东溢达纺织有限公司 | Humidity sensitivity discoloring character-displaying plastic bag and manufacturing method thereof |
| CN207590112U (en) * | 2017-10-30 | 2018-07-10 | 瓶子（厦门）科技有限公司 | A kind of changeable colour Respirator structure |
| CN210747393U (en) * | 2019-06-13 | 2020-06-16 | 中山大学孙逸仙纪念医院 | Moist color-changing mask |
| CN211910640U (en) * | 2020-03-17 | 2020-11-13 | 上海理工大学 | Mask with recognition function |
| CN111528928A (en) * | 2020-07-13 | 2020-08-14 | 深圳华大基因股份有限公司 | Sampling mask |
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| CN112826160A (en) | 2021-05-25 |
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