Card package with signal shielding function

Abstract

The present invention relates to the field of card bag technology, and specifically to a card bag with a signal shielding function, including a card bag body, the card bag body including an openable front clip and a back clip, a partition layer is provided on the top of the back clip, the partition layer partially extends to the front clip, and the partition layer and the card bag body form a card pocket, the opening of the card pocket is located in the area of ​​the front clip, and the partition layer and the card bag body are respectively embedded with a signal shielding layer. The present invention uses a first signal shielding layer and a second signal shielding layer to cover a mobile communication device with a card bag structure, isolates the signal of the mobile communication device, cuts off the signal connection between the mobile communication device and the outside world, and realizes signal shielding; in addition, because the partition layer partially extends to the front clip, when the card bag is folded, the extension of the partition layer cooperates with the front clip to realize the natural sealing of the card bag during the folding process, improves the airtightness of the card bag, and enhances the signal shielding effect of the card bag.

Description

Technical Field

[0001] The present invention relates to the technical field of card packages, and in particular to a card package with a signal shielding function. Background Art

[0002] At present, mobile communication technology is developing rapidly and plays an important role in people's production, life and other aspects. However, while mobile communication technology brings great convenience to people, it also derives some problems that cannot be ignored. For example, (1) mobile terminals become a new source of noise pollution, interfering with normal working order; (2) they become a new channel for leakage, posing a threat to information security; (3) they become a new unsafe factor, bringing hidden dangers to corporate security; (4) they become a new means of crime, bringing harm to social stability. Therefore, in certain specific cases, it is necessary to take technical means to shield or restrict communication signals to avoid the harm caused by the loss of control of mobile communication networks.

[0003] Card wallets are a product of the modern economy. There are generally two types of card wallets: one is a flip-page type, like a book page; the other is a rotating type. In terms of material, genuine leather (animal leather) and imitation leather (PU, PVC) are the most common. Just like a wallet, they are suitable for carrying around. In modern life, people have to deal with cards to some extent, such as various IC cards, bank cards, supermarket cards, shopping cards, membership cards, etc. It is not easy to store so many cards, and it is easy to get confused, which often brings a lot of unnecessary troubles. Card wallets are created to manage so many cards. The existing card holders are mainly designed to manage various cards more conveniently and quickly. For example, patent publication number CN208015795U discloses an integrated card holder for mobile phones, which includes a mobile phone back cover and a supporting interlayer. A plastic hard film is provided on the back of the supporting interlayer. The plastic hard film includes rectangular adhesive tapes on both sides and a rectangular plastic strip in the middle. The backs of the plastic strip and the adhesive tape are provided with adhesives to bond with the supporting interlayer. The front side of the plastic strip is a smooth surface. The front side of the adhesive tape is provided with adhesives to bond with the inner side of the mobile phone back cover. The card holder can be used as an accessory for storing cards or certificates, which is convenient for combined use to realize multiple functions. However, the card holder cannot realize the signal shielding function, which limits its application.

[0004] To this end, the present invention provides a card package with a simple structure, convenient use and a signal shielding function. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a card bag with a signal shielding function, which utilizes a first signal shielding layer and a second signal shielding layer to cover a mobile communication device in the structure of a card bag, isolates the signal of the mobile communication device, cuts off the signal connection between the mobile communication device and the outside world, and realizes signal shielding; in addition, since the partition part extends to the front clip, when the card bag is folded, the extended part of the partition cooperates with the front clip to realize the natural sealing of the card bag during the folding process, improves the airtightness of the card bag, and enhances the signal shielding effect of the card bag.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] A card package with a signal shielding function comprises a card package body, wherein the card package body comprises an openable front clip and a back clip, a partition is arranged on the top of the back clip, the partition partially extends to the front clip, and the partition and the card package body form a card pocket, the opening of the card pocket is located in the area of ​​the front clip, and signal shielding layers are respectively embedded in the partition and the card package body.

[0008] Furthermore, the partition layer includes a first dermis layer, a first supporting layer, a first signal shielding layer and a woven fabric layer which are arranged in sequence from top to bottom.

[0009] Furthermore, the card package body includes a second leather layer, a second signal shielding layer, a second supporting layer, a buffer layer and a third leather layer which are sequentially arranged from top to bottom.

[0010] Furthermore, a plurality of convex points or a plurality of strip-shaped protrusions are evenly arranged on the surface of the third dermis layer.

[0011] Furthermore, at least one first card position for placing a card is arranged on the top of the partition.

[0012] Furthermore, at least one second card slot for placing a card is provided on the top of the front clip.

[0013] Furthermore, the second card position is arranged adjacent to the opening of the card pocket.

[0014] Furthermore, the signal shielding layer shields frequencies in the range of 100K-3GHz. Preferably, the signal shielding layer is specifically made of signal shielding material SQ3000-S.

[0015] Furthermore, the length of the card pocket opening is 10 to 25 cm.

[0016] Furthermore, when the card package body is folded, the fold line between the front clip and the back clip is the folding line, the partition is bounded by the folding line, the side of the partition close to the front clip is the extension part, and the side of the partition away from the front clip is the shielding part, and the width of the extension part covering the front clip is greater than 5 mm.

[0017] Furthermore, the first supporting layer includes a supporting extension plate, a fixed rotating shaft, and a supporting main board which are arranged in sequence from left to right, the fixed rotating shaft is arranged at the folding line, the supporting extension plate is arranged above the front clip, the supporting main board is arranged above the back clip, and the supporting extension plate and the supporting main board are respectively in contact with the fixed rotating shaft.

[0018] Furthermore, the middle portion of the first signal shielding layer is recessed toward the bottom, the recess of the first signal shielding layer is arranged corresponding to the fixed shaft, the bottom portion of the fixed shaft is arranged at the recess of the first signal shielding layer, and the cross-section of the top of the fixed shaft is a semi-elliptical structure.

[0019] Furthermore, the fixed rotating shaft is bonded to the first signal shielding layer at the recessed portion of the first signal shielding layer.

[0020] Furthermore, at a position corresponding to the folding line, a "U"-shaped groove is arranged on the top of the second supporting layer of the card package body, and the bottom of the "U"-shaped groove is arranged close to the buffer layer.

[0021] Furthermore, a hand-shaped groove is provided on the outer side surface of the third leather layer, and the hand-shaped groove is used for the user to hold the card wallet.

[0022] Furthermore, the hand-shaped groove includes a thumb-shaped groove and an index finger-shaped groove, the thumb-shaped groove is arranged on one side of the front clamp, and the index finger-shaped groove is arranged on one side of the back clamp.

[0023] Furthermore, the hand-shaped groove includes a thumb-shaped groove and an index finger-shaped groove, the thumb-shaped groove is arranged on one side of the back clamp, and the index finger-shaped groove is arranged on one side of the front clamp.

[0024] Furthermore, the hand-shaped groove also includes at least one of a middle finger-shaped groove, a ring finger-shaped groove, and a little finger-shaped groove.

[0025] Furthermore, the finger-shaped groove, the ring finger-shaped groove, the little finger-shaped groove and the index finger-shaped groove are respectively arranged on the same side of the folding line.

[0026] Furthermore, a decompression convex strip is provided in the index finger-shaped groove, a ball channel is provided in the decompression convex strip, a ball, a ringing iron and an elastic member are provided in the ball channel, the elastic member is provided close to the folding line, the ball is provided between the elastic member and the ringing iron, one end of the elastic member is connected to the inner wall of the ball channel, the other end of the elastic member is connected to the ball, and the ringing iron is connected to the inner wall of the ball channel. Preferably, the elastic member is in a compressed state under normal conditions, and is used to push the ball to be close to the ringing iron.

[0027] The signal shielding layer of the card holder with signal shielding function is based on polyester fiber and includes the following raw materials in parts by weight: 70 parts by weight of PET polyester, 20 parts by weight of copper, and 10 parts by weight of silver.

[0028] The method for preparing the signal shielding layer comprises the following steps:

[0029] Step A: degreasing the polyester fiber, which is the base material of the signal shielding layer, and roughening it so that grooves are formed on the surface of the polyester fiber;

[0030] Step B: treating the surface of the polyester fiber with hydroxyl groups and performing mercapto modification treatment, and using mercaptosilane to perform self-assembly reaction on the surface of the polyester fiber to obtain a mercapto functionalized substrate;

[0031] Step C: silver is positioned and adsorbed on the fiber surface through the chelation of the mercapto group of the silane coupling agent with mercapto group, and the silver is self-catalyzed to deposit silver on the fiber surface, thus completing the first layer of chemical silver plating;

[0032] Step D: electroplating a copper covering layer on the first layer of silver;

[0033] Step E: Electroplating a silver covering layer on the copper covering layer.

[0034] Furthermore, the above-mentioned preparation method also includes:

[0035] In step A, the polyester fiber is washed with a mixed solution containing 15 g / L of sodium hydroxide and 7 g / L of a non-ionic detergent at a temperature of 70° C. for 20 minutes to achieve oil removal;

[0036] In step B, the polyester fiber base material treated in step A is treated with a 200 g / L sodium hydroxide solution at 60° C. for 30 minutes to make the surface of the polyester fiber contain hydroxyl groups; the polyester fiber is taken out, immersed in a solution prepared with ethyl acetate as a solvent and 3-mercaptopropyltriethoxysilane as a solute, reacted at room temperature for 10 minutes, then taken out, washed with anhydrous ethanol, and then dried at 90° C. for 15 minutes to obtain a modified polyester fiber;

[0037] In step C, AgNO3 is dissolved in water, and ammonia water and sodium hydroxide are added to obtain solution A; glucose and tartaric acid are dissolved in water, boiled for 10 minutes, and ethanol and water are added after cooling to obtain solution B; solution A and solution B are mixed in a mass ratio of 1:1 to obtain a mixed solution, and the modified polyester fiber is placed in the mixed solution for chemical reaction to complete chemical silver plating.

[0038] The beneficial effects of the present invention are as follows: the card bag with a signal shielding function of the present invention utilizes a first signal shielding layer and a second signal shielding layer to cover a mobile communication device with a card bag structure, isolates the signal of the mobile communication device, cuts off the signal connection between the mobile communication device and the outside world, and realizes signal shielding; in addition, since the partition part extends to the front clip, when the card bag is folded, the extended part of the partition cooperates with the front clip to realize the natural sealing of the card bag during the folding process, thereby improving the airtightness of the card bag and enhancing the signal shielding effect of the card bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic diagram of the structure of the card package with signal shielding function proposed by the present invention;

[0040] Figure 2 A cross-sectional view of the card package with signal shielding function proposed by the present invention in an open state;

[0041] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle A;

[0042] Figure 4 It is a structural schematic diagram of the hand-shaped groove of the present invention;

[0043] Figure 5 It is a cross-sectional view of the decompression convex strip of the present invention;

[0044] Figure 6 A cross-sectional view of the card package with signal shielding function in a closed state proposed by the present invention;

[0045] In the figure, 1-card holder body, 2-front clip, 3-back clip, 4-interlayer, 5-first leather layer, 6-first support layer, 7-first signal shielding layer, 8-woven layer, 9-second leather layer, 10-second signal shielding layer, 11-second support layer, 12-buffer layer, 13-third leather layer, 14-second card position, 15-first card position, 16-folding line, 17-support extension plate, 18-fixed shaft, 19-support main board, 20-"U"-shaped groove, 21-thumb groove, 22-index finger groove, 23-middle finger groove, 24-ring finger groove, 25-little finger groove, 26-decompression convex strip, 27-ball channel, 28-ring iron, 29-ball, 30-elastic part, 31-mobile communication device. DETAILED DESCRIPTION

[0046] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0047] like Figure 1 to Figure 6As shown, a card package with a signal shielding function includes a card package body 1, wherein the card package body 1 includes an openable front clip 2 and a back clip 3, a partition layer 4 is provided on the top of the back clip 3, the partition layer 4 partially extends to the front clip, and the partition layer 4 and the card package body 1 form a card pocket, the opening of the card pocket is located in the area of ​​the front clip 2, and the partition layer 4 and the card package body 1 are respectively embedded with signal shielding layers.

[0048] like Figure 2 As shown, in a specific embodiment, the partition layer 4 includes a first dermis layer 5, a first supporting layer 6, a first signal shielding layer 7 and a woven fabric layer 8 which are arranged in sequence from top to bottom.

[0049] like Figure 2 As shown, the card bag body 1 includes a second leather layer 9, a second signal shielding layer 10, a second support layer 11, a buffer layer 12 and a third leather layer 13 arranged in sequence from top to bottom. During use, when it is necessary to shield the signal of the mobile communication device, the mobile communication device 31 is placed in the card bag, specifically in the cavity between the partition layer 4 and the card bag body 1. After the mobile communication device 31 is placed in the card bag, it is directly located between the woven fabric layer 8 and the second leather layer 9. After the mobile communication device 31 is loaded, the front clip 2 and the back clip 3 are folded together. Since the partition 4 and the card bag body 1 are respectively embedded with signal shielding layers, the first signal shielding layer 7 and the second signal shielding layer 10 are used to cover the mobile communication device with the structure of a card bag, so that the signal of the mobile communication device 31 is isolated, and the signal connection between the mobile communication device 31 and the outside world is cut off to achieve signal shielding; in addition, since a part of the partition 4 extends to the front clip 2, when the card bag is folded, the extended part of the partition 4 cooperates with the front clip 2 to achieve natural sealing of the card bag during the folding process, thereby improving the airtightness of the card bag and enhancing the signal shielding effect of the card bag.

[0050] Specifically, a plurality of convex points or a plurality of strip-shaped protrusions are evenly arranged on the outer surface of the third dermis layer 13. By arranging a plurality of convex points or a plurality of strip-shaped protrusions on the outer surface of the third dermis layer 13, the convex points and the strip-shaped protrusions are used to increase the friction coefficient of the third dermis layer 13, so that when the user holds the card wallet, it is not easy to slip, thereby improving the convenience of using the card wallet.

[0051] like Figure 1 As shown, at least one first card position 15 for placing a card is provided on the top of the partition 4.

[0052] Specifically, at least one second card slot 14 for placing a card is provided on the top of the front clip 2. By providing the first card slot 15 on the top of the interlayer 4 and the second card slot 14 on the top of the front clip 2, the first card slot 15 and the second card slot 14 are used to store cards, thereby improving the space utilization of the card package.

[0053] Specifically, the second card position 14 is disposed adjacent to the opening of the card pocket.

[0054] Specifically, the signal shielding layer shields frequencies in the range of 100K-3GHz. In this embodiment, the signal shielding layer is specifically a signal shielding material SQ3000-S.

[0055] The signal shielding layer includes the following raw materials in parts by weight: 70 parts by weight of PET polyester, 20 parts by weight of copper, and 10 parts by weight of silver. Preferably, the signal shielding layer is based on polyester fiber, which is first degreased and then roughened to form grooves on the surface of the polyester fiber to enhance adsorption and enrich the surface of the polyester fiber with hydroxyl groups, and then undergoes a mercapto modification process, using mercaptosilane to perform a self-assembly reaction on the surface of the polyester fiber to obtain a mercapto-functionalized substrate. Since there is a strong coordination effect between mercapto and silver, the silver is positioned and adsorbed to the fiber surface through the chelation of the mercapto group of the silane coupling agent with mercapto, and the self-catalytic effect of silver is used to deposit silver on the fiber surface to complete the first layer of chemical silver plating; in order to improve the conductivity and shielding effect, a high-conductivity copper layer is plated on the first layer of silver through a conventional electroplating process. Since copper is easily oxidized, anti-oxidation and anti-corrosion silver metal is electroplated on the copper layer. The combination of copper and silver provides excellent conductivity and good electromagnetic shielding effect, and the shielding range is 100K-3GHz.

[0056] Specifically, the polyester fiber is washed with a mixed solution containing 15 g / L sodium hydroxide and 7 g / L non-ionic detergent at 70 degrees Celsius for 20 minutes to achieve oil removal; then it is roughened and treated with 200 g / L sodium hydroxide solution at 60°C for 30 minutes to make the surface of the polyester fiber rich in hydroxyl groups; the polyester fiber is taken out and immersed in a solution prepared with ethyl acetate as solvent and 3-mercaptopropyltriethoxysilane as solute, reacted at room temperature for 10 minutes, then taken out and fully washed with anhydrous ethanol, and then dried at 90°C for 15 minutes to obtain the modified polyester fiber; AgNO3 is dissolved in water, and ammonia water and sodium hydroxide are added to obtain solution A, glucose and tartaric acid are dissolved in water, boiled for 10 minutes, ethanol and water are added after cooling to obtain solution B, solution A and solution B are mixed in a mass ratio of 1:1 to obtain a mixed solution, and the modified polyester fiber is put into the mixed solution for chemical reaction to complete chemical silver plating.

[0057] In this embodiment, the length of the card pocket opening is 10 to 25 cm. During use, the mobile communication device commonly used by users is a mobile phone. The size and length of existing mobile phones are within 25 cm. In order to achieve the signal shielding of the mobile phone by the card bag, the length of the card pocket opening is set to 10 to 25 cm, so that the card pocket can be effectively transferred to all existing mobile phone models, and the signal shielding function of the card pocket on the mobile phone is achieved.

[0058] like Figure 1 and Figure 2 As shown, when the card package body 1 is folded, the fold line between the front clip 2 and the back clip 3 is the fold line 16, and the interlayer 4 is bounded by the fold line 16. Usually, the fold line 16 is located in the middle of the card package body 1, so that after folding, the front clip 2 and the back clip 3 can be completely overlapped. The interlayer 4 is located on one side of the front clip 2 as an extension part, and the width of the extension part over the front clip 2 must be at least greater than 5mm. The preferred size is that the width of the extension part over the fold line 16 is 5 to 35mm.

[0059] like Figure 3 As shown, the first supporting layer 6 includes a supporting extension plate 17, a fixed rotating shaft 18, and a supporting main board 19 which are arranged from left to right in sequence, the fixed rotating shaft 18 is arranged at the folding line 16, the supporting extension plate 17 is arranged above the front clip 2, the supporting main board 19 is arranged above the back clip 3, and the supporting extension plate 17 and the supporting main board 19 are in contact with the fixed rotating shaft 18 respectively.

[0060] like Figure 3 As shown, the middle part of the first signal shielding layer 7 is recessed toward the bottom, the recessed part of the first signal shielding layer 7 is arranged corresponding to the fixed rotating shaft 18, the bottom part of the fixed rotating shaft 18 is arranged in the recessed part of the first signal shielding layer 7, and the cross-section of the top of the fixed rotating shaft 18 is a semi-elliptical structure. In order to improve the signal shielding effect of the card bag, the first supporting layer 6 of the partition 4 is set to a structure including a supporting extension plate 17, a fixed rotating shaft 18, and a supporting main board 19. The bottom of the fixed rotating shaft 18 is bonded to the first signal shielding layer 7, and the supporting extension plate 17 and the supporting main board 19 are respectively in contact with the fixed rotating shaft 18, so that when the card bag is folded, the supporting extension plate 17 and the supporting main board 19 rotate around the fixed rotating shaft 18 respectively. Since the cross-section of the top of the fixed rotating shaft 18 is a semi-elliptical structure, and the horizontal direction is the short axis, the distance between the supporting extension plate 17 and the supporting main board 19 and the central axis of the fixed rotating shaft 18 gradually increases during the process from opening to folding the card bag, prompting the supporting extension plate 17 and the supporting main board 19 to apply thrust to the fixed rotating shaft 18 respectively, pushing the fixed rotating shaft 18 toward the card bag body 1, so that the partition 4 is more closely attached to the card bag body 1 on the folding line, reducing the distance between the first signal shielding layer 7 in the partition 4 and the second signal shielding layer 10 in the card bag body 1, thereby improving the signal shielding effect of the card bag.

[0061] like Figure 3 As shown, at the recessed portion of the first signal shielding layer 7 , the fixed rotating shaft 18 is bonded to the first signal shielding layer 7 .

[0062] Specifically, at a position corresponding to the folding line 16, a "U"-shaped groove 20 is provided on the top of the second support layer 11 of the card package body 1, and the bottom of the "U"-shaped groove 20 is provided close to the buffer layer 12. When in use, when the user opens and folds the card package, the distance between the support extension plate 17 and the support main board 19 and the central axis of the fixed shaft 18 gradually increases, prompting the support extension plate 17 and the support main board 19 to apply thrust to the fixed shaft 18, respectively, pushing the fixed shaft 18 toward the "U"-shaped groove 20, and partially inserting the partition 4 into the "U"-shaped groove 20 of the card package body 1, thereby reducing the distance between the first signal shielding layer 7 in the partition 4 and the second signal shielding layer 10 in the card package body 1, and improving the signal shielding effect of the card bag.

[0063] Specifically, a hand-shaped groove is provided on the outer side of the third leather layer 13, and the hand-shaped groove is used for the user to hold the card package. By providing the hand-shaped groove, it is convenient for the user to hold the card package, thereby improving the convenience of using the card package.

[0064] Specifically, the hand-shaped groove includes a thumb-shaped groove 21 and an index finger-shaped groove 22 . The thumb-shaped groove 21 is arranged on one side of the front clip 2 , and the index finger-shaped groove 22 is arranged on one side of the back clip 3 .

[0065] Specifically, the hand-shaped groove includes a thumb-shaped groove 21 and an index finger-shaped groove 22 , wherein the thumb-shaped groove 21 is arranged on one side of the back clip 3 , and the index finger-shaped groove 22 is arranged on one side of the front clip 2 .

[0066] Specifically, the hand-shaped groove further includes at least one of a middle finger-shaped groove 23 , a ring finger-shaped groove 24 , and a little finger-shaped groove 25 .

[0067] Specifically, the finger-shaped groove 23 , the ring-finger-shaped groove 24 , and the little-finger-shaped groove 25 are respectively arranged on the same side of the folding line 16 as the index-finger-shaped groove 22 .

[0068] like Figure 4 , Figure 5 As shown, a decompression convex strip 26 is provided in the index finger groove 22, a ball channel 27 is provided in the decompression convex strip 26, a ball 29, a ringing iron 28 and an elastic member 30 are provided in the ball channel 27, the elastic member 30 is provided near the folding line 16, the ball 29 is provided between the elastic member 30 and the ringing iron 28, one end of the elastic member 30 is connected to the inner wall of the ball channel 27, the other end of the elastic member 30 is connected to the ball 29, and the ringing iron 28 is connected to the inner wall of the ball channel 27. Preferably, the elastic member 30 is in a compressed state under normal conditions, and is used to push the ball 29 to be close to the ringing iron 28.

[0069] During use, when the user needs to shield the signal of the mobile communication device 31, the user puts the mobile communication device 31 into the card pocket, and then folds the front clip 2 and the back clip 3. Since the partition 4 and the card bag body 1 are respectively embedded with signal shielding layers, the first signal shielding layer 7 and the second signal shielding layer 10 are used to cover the mobile communication device 31 with the structure of the card bag, so as to isolate the signal of the mobile communication device 31 and cut off the signal connection between the mobile communication device 31 and the outside world, thereby realizing signal shielding; in addition, since the partition 4 partially extends to the front clip 2, when the card bag is folded, the extended part of the partition 4 cooperates with the front clip 2 to realize the natural sealing of the card bag during the folding process, thereby improving the airtightness of the card bag and enhancing the signal shielding effect of the card bag; in addition, in order to improve the signal shielding effect of the card bag, the first support layer 6 of the partition 4 is configured to include a support extension plate 17, a fixed shaft 18, a support The structure of the main board 19 utilizes the bottom of the fixed shaft 18 to bond with the first signal shielding layer 7, and the support extension plate 17 and the support main board 19 are respectively in contact with the fixed shaft 18, so that when the card package is folded, the support extension plate 17 and the support main board 19 respectively rotate around the fixed shaft 18. Since the cross-section of the top of the fixed shaft 18 is a semi-elliptical structure, and the horizontal direction is the short axis, the distance between the support extension plate 17 and the support main board 19 and the central axis of the fixed shaft 18 gradually increases during the process from opening to folding the card package, prompting the support extension plate 17 and the support main board 19 to apply thrust to the fixed shaft 18 respectively, pushing the fixed shaft 18 toward the card package body 1, so that the partition 4 is more closely attached to the card package body 1 on the folding line, reducing the distance between the first signal shielding layer 7 in the partition 4 and the second signal shielding layer 10 in the card package body 1, thereby improving the signal shielding effect of the card bag.

[0070] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not deviate from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A card package with a signal shielding function, comprising a card package body, wherein the card package body comprises a front clip and a back clip that can be opened and closed, characterized in that: A partition is provided on the top of the back clip, the partition part extends to the front clip, and the partition and the card package body form a card pocket, the opening of the card pocket is located in the area of ​​the front clip, and the partition and the card package body are respectively embedded with a signal shielding layer; The partition layer includes a first leather layer, a first support layer, a signal shielding layer and a fabric layer arranged in sequence from top to bottom; The card holder body comprises a second leather layer, a second signal shielding layer, a second supporting layer, a buffer layer and a third leather layer which are sequentially arranged from top to bottom; The top of the interlayer is provided with at least one first card position for placing a card, and the top of the front clip is provided with at least one second card position for placing a card, and the second card position is provided adjacent to the opening of the card pocket; When the card holder body is folded, the fold line between the front clip and the back clip is the fold line, the partition is bounded by the fold line, the partition is located on one side of the front clip as an extension, and the width of the extension covering the front clip is greater than 5mm; The signal shielding layer is based on polyester fiber and includes the following raw materials in parts by weight: 70 parts by weight of PET polyester, 20 parts by weight of copper, and 10 parts by weight of silver; The method for preparing the signal shielding layer comprises the following steps: Step A: degreasing the polyester fiber, which is the base material of the signal shielding layer, and roughening it so that grooves are formed on the surface of the polyester fiber; Step B: treating the surface of the polyester fiber with hydroxyl groups and performing mercapto modification treatment, using mercaptosilane to perform self-assembly reaction on the surface of the polyester fiber to obtain a mercapto functionalized substrate; Step C: silver is positioned and adsorbed on the fiber surface through the chelation of the mercapto group of the silane coupling agent with mercapto group, and the silver is self-catalyzed to deposit silver on the fiber surface, thus completing the first layer of chemical silver plating; Step D: electroplating a copper covering layer on the first layer of silver; Step E: electroplating a silver covering layer on the copper covering layer; In step A, the polyester fiber is washed with a mixed solution containing 15 g / L of sodium hydroxide and 7 g / L of a non-ionic detergent at a temperature of 70° C. for 20 minutes to achieve oil removal; In step B, the polyester fiber base material treated in step A is treated with a 200 g / L sodium hydroxide solution at 60° C. for 30 minutes to make the surface of the polyester fiber contain hydroxyl groups; the polyester fiber is taken out, immersed in a solution prepared with ethyl acetate as a solvent and 3-mercaptopropyltriethoxysilane as a solute, reacted at room temperature for 10 minutes, then taken out, washed with anhydrous ethanol, and then dried at 90° C. for 15 minutes to obtain a modified polyester fiber; In step C, AgNO3 is dissolved in water, and ammonia water and sodium hydroxide are added to obtain solution A; glucose and tartaric acid are dissolved in water, boiled for 10 minutes, and ethanol and water are added after cooling to obtain solution B; solution A and solution B are mixed in a mass ratio of 1:1 to obtain a mixed solution, and the modified polyester fiber is placed in the mixed solution for chemical reaction to complete chemical silver plating.

2. A card package with signal shielding function according to claim 1, characterized in that: The outer side of the third dermis layer is provided with a hand-shaped groove, and the hand-shaped groove includes a thumb-shaped groove and an index finger-shaped groove. The thumb-shaped groove is arranged on the front clamp side, and the index finger-shaped groove is arranged on the back clamp side.

3. A card package with signal shielding function according to claim 2, characterized in that: A decompression convex strip is provided in the index finger-shaped groove, a ball channel is provided in the decompression convex strip, a ball, a ringing iron and an elastic member are provided in the ball channel, the elastic member is provided close to the folding line, the ball is provided between the elastic member and the ringing iron, one end of the elastic member is connected to the inner wall of the ball channel, the other end of the elastic member is connected to the ball, and the ringing iron is connected to the inner wall of the ball channel.

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