KR200491578Y1 - Strap for mobile case - Google Patents

Abstract

According to the present invention, the strap loop of the belt shape; A printing layer printed on the strap loop to provide an advertisement function; Anti-slip layer is provided on the middle portion except for both ends of the strap loop to provide a non-slip function and improve the grip feeling; And the strap loops are formed on the lower surfaces of both ends of the strap loop, and while the strap loops are located outside the rear surface of the mobile case, the both ends of the strap loop penetrate the camera exposure hole and the charging port exposure hole of the mobile case, respectively, and then inside the back surface of the mobile case. A strap for a mobile case comprising an adhesive member to be attached is provided.

Description

Strap for mobile case

The present invention relates to a strap for a mobile case, and more specifically, a band-shaped strap is configured to allow a user's finger to be inserted or contacted on the back side of a mobile case accommodating a mobile phone, such as a smart phone, to prevent mobile fall and use. It relates to a strap for a mobile case that can improve convenience.

In general, mobile is used as a daily necessity that anyone can use regardless of gender, and various products have been released depending on the manufacturer.

Recently, as mobiles such as smart phones have become popular, it provides functions such as Internet access, video playback, and cameras in addition to phone functions, and it is relatively bulky and expensive due to the display having a predetermined size, resulting in damage or scratches during use. It is used in a case made of synthetic resin so that no back is generated.

However, such a large-sized mobile with a large display has a problem in that it is not easy to operate a corresponding function in a state in which the user grips the mobile with one hand, and if it is inadvertently inadvertently falls from the hand, due to the large volume.

In addition, even if the mobile is mounted on the case, there is a problem that the convenience of use is deteriorated because a function that covers portions other than the display of the mobile is provided and a separate aesthetic sense is not provided.

Accordingly, a method has emerged that facilitates gripping when the user operates the mobile device and prevents a fall from the hand.

(Patent Document 0001) Public Utility Model 20-2013-0001718

(Patent Document 0002) Registered Patent 10-156079

Accordingly, an object of the present invention is to provide a strap for a mobile case that is configured with a band-shaped strap that allows a user's finger to be fitted or contacted on the back of the mobile case to prevent a fall of the mobile and improve convenience in use.

In addition, the object of the present invention can be carried out simply by attaching the inside of the rear surface of the case after both ends of the strap are respectively penetrated through the camera exposure hole and the charging port exposure hole while the strap is located outside the back surface of the mobile case. It is to provide a strap for the mobile case.

In addition, an object of the present invention is to provide a strap for a mobile case that allows both ends of the strap to peel off cleanly without the presence of a residue of the adhesive when peeling from the adhered surface.

In addition, an object of the present invention is to provide a strap for a mobile case that can be re-attached even after both ends of the strap are peeled from the adhered surface, thereby enabling reuse even when the length of the strap is adjusted or the case is replaced.

On the other hand, the purpose of the present invention is not limited to the above-mentioned purpose, other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to the present invention, the strap loop of the belt shape; A printing layer printed on the strap loop to provide an advertisement function; Anti-slip layer is provided on the middle portion of the strap loop to provide an anti-slip function and improve the grip feeling; And the strap loops are formed on the lower surfaces of both ends of the strap loop, and while the strap loops are located outside the rear surface of the mobile case, the both ends of the strap loop penetrate the camera exposure hole and the charging port exposure hole of the mobile case, respectively, and then inside the back surface of the mobile case. A strap for a mobile case comprising an adhesive member to be attached is provided.

Here, it is preferable that the anti-slip layer, silicone is sprayed or laminated coated.

In addition, the adhesive member, the base sheet; It is preferable to have a double-sided tape structure including a first adhesive layer and a second adhesive layer, which are respectively applied to one surface and the other surface of the base sheet and attached to the lower surface of the strap loop and the adhered surface of the mobile case, respectively.

Further, the base sheet is preferably a nonwoven fabric or synthetic resin having a thickness of 0.1 mm to 0.2 mm.

In addition, the first adhesive layer is made of any one of a polyurethane primer, a rubber-type adhesive, and a room temperature curing agent, and preferably has a thickness of 0.03 mm to 0.1 mm.

Further, the second adhesive layer is 4,4-dicyclohexylmethane diisocyanate, 3,3-dimethyl-4,4-diphenylmethane diisocyanate, 1,4-cyclohexyl diisocyanate, 1,5-naphthalenedi Prepared by heating 100 parts by weight of a composite of isocyanate mixed at 10: 7: 5: 3 to 100 to 120 ° C, reacting for 8 to 10 hours by adding 50 to 70 parts by weight of polystyrene adipate, and then cooling to room temperature. A liquid; Neopentyl glycol 100 parts by weight 1,6-hexanediol 80-95 parts by weight, vinyl tree (2-methoxyethoxysilane) 70-85 parts by weight, 1,4-butanediol 60-75 parts by weight, trimethylene 50-65 parts by weight of glycol di-para aminobenzoate, 40-55 parts by weight of 1,4-bis2-hydroxypropyl-2-methylpiperazine, 30-45 parts by weight of tetramethylpiperazine, tetrabutyl tita It contains 20 to 35 parts by weight of nate and 3 to 5 parts by weight of titanate as a coloring pigment and B solution composed of 1 to 3 parts by weight of iron blue, and it has an elastic gel structure in which A and B are mixed and stirred. , It is preferable to have a thickness of 0.2mm to 2mm.

Therefore, according to the present invention, a band-shaped strap is configured to allow a user's finger to be fitted or contacted on the back of the mobile case to prevent the mobile from falling and improve convenience in use.

In addition, it can be carried out simply by attaching to the inside of the rear surface of the case after the both ends of the strap are respectively penetrated through the camera exposure hole and the charging port exposure hole of the mobile case while the strap is located outside the rear surface of the mobile case.

In addition, when both ends of the strap are peeled from the adhered surface, the residue of the adhesive does not exist and can be peeled off cleanly.

In addition, even if both ends of the strap are peeled from the adhered surface, it can be re-attached, thereby enabling continuous use even if the length of the strap is adjusted or the case is replaced.

Meanwhile, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view showing a strap for a mobile case according to the present invention;
Figure 2 is a cross-sectional view showing the strap of Figure 1; And
3 and 4 are views showing the strap of FIG. 1 attached to a mobile case.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4, the strap 100 for a mobile case according to a preferred embodiment of the present invention is printed on the top of the strap-shaped strap loop 110, the strap loop 110 to provide an advertising function Print layer 120 to be applied to the upper surface of the strap loop 110, a coating layer 130 to provide a waterproof function, etc., at the middle of at least one of the upper and lower surfaces of the strap loop 110 It is configured to provide an anti-slip function and is configured on the lower surface of both ends of the anti-slip layer 140 and the strap loop 110 to improve the grip feeling, and the strap loop 110 is located on the outside of the back surface of the mobile case 200. The adhesive members 150 that allow both ends of the roof 110 to penetrate the camera exposure hole 210 and the charging port exposure hole 220 of the mobile case 200 and then attach to the inside of the back surface of the mobile case 200, respectively. And the like.

The strap loop 110 is a strap for providing an anti-slip function or the like when the user's finger is in contact with the outside of the back surface of the mobile case 200, more preferably made of synthetic fibers, 300 of 75 dyna It is good to be polyester fabric.

Here, the strap loop 110 is, for example, by using a polyester fabric made of 300 pieces of 75 dyna, space between the lower surface of the strap loop 110 and the outer surface of the mobile case 220 through predetermined elasticity. It may be provided with a space for the user's fingers to fit.

In addition, the strap loop 110, through the elastic material, the inside of the back surface of the mobile case 200 having a synthetic resin material, that is, even if the elastic or deformation occurs in accordance with the heat or surrounding temperature transmitted from the mobile As it is stretched together, the strap loop 110 can be prevented from crying or twisting.

In addition, the first adhesive layer 152 of the adhesive member 150, which will be described later, can be adhered with a stronger adhesive force by having a standard made of 300 of 75 dyna, through which the second adhesive layer 153 is deposited. When peeling from the surface, the residue of the second adhesive layer 153 does not exist on the surface to be adhered so that it can be completely peeled off.

In addition, the strap loop 110, preferably has a thickness of about 0.4mm to 0.65mm, through which, both ends of the strap loop 110 through the adhesive member 150, the back of the mobile case 200 When attached inside, it is good to minimize the interference to the mobile mounting and provide a predetermined strength.

The printing layer 120 is printed on the upper surface of the strap loop 110 to provide an advertisement function, and may be configured through means such as a label printer, a photorealistic printing machine, and a UV offset printing machine.

The coating layer 130 is coated with a predetermined thickness on the upper surface of the strap loop 110 to provide a waterproof function that prevents the printing layer 120 and the strap loop 110 from being contaminated by sweat or the like generated by a user's hand. As a means for providing, for example, polyurethane is coated with a thickness of 25 µm on the upper surface of a polyester fabric made of 300 waters of 75 dyna.

Here, the polyurethane is coated and coated on the upper surface of the strap loop 110, the first adhesive layer 152 and the second of the printing layer 120 or the adhesive member 150 to be described later having weak properties such as water or sweat The adhesive layer 153 provides a waterproof function for minimizing direct contact with water or sweat penetrating the strap loop 110, and at the same time, the strap loop 110 has a higher aesthetic sense and has a fiber structure. As a coating member that suppresses the separation of the yarn of 110), it is applied with a thickness of 25㎛, and if it is less than the thickness, the polyurethane does not penetrate into the inside of the strap loop 110 and is applied only to the surface to maximize the waterproof function If the thickness exceeds the thickness, the polyurethane penetrates deep into the inside of the strap loop 110 so that the first adhesive layer 152 of the adhesive member 150 described below penetrates the lower surface of the strap loop 110. The teeth becomes shallower so that the problem that the adhesive strength of the second adhesive layer 153 is degraded, it is desirable to have a critical significance as described above.

Here, the coating layer 130 may be applied with the same thickness to the lower surface of the strap loop 110, the upper and lower surfaces of the strap loop 110, or the upper and lower partial areas or the printed layer 120 is applied. It may be implemented in any part of the region.

The anti-slip layer 140 is configured as an intermediate portion of at least one of the upper and lower surfaces of the strap loop 110 to provide an anti-slip function and improve grip, more preferably silicon is a known method It is good to provide a friction function when the user's finger is put on the lower surface or touches the upper surface by being coated with the corresponding part by spraying or silkscreen.

Here, the slip-preventing layer 140 has a wavy or irregular cross-section on the upper surface of the strap loop 110, a file cutting surface of a file, or a net type of a dotted structure to facilitate the seating of a finger. It is good to be implemented in various shapes.

In addition, the slip-prevention layer 140 may be configured between the printing layer 120 and the coating layer 130 or between the lower surface of the strap loop 110 and the coating layer 130, or may be directly configured on the outer surface of the coating layer 130. It might be.

In addition, the slip-prevention layer 140 may be implemented only in one portion of the entire area of the upper and lower surfaces of the strap loop 110 or a partial area of the upper and lower surfaces or an area where the printed layer 120 is applied.

The adhesive member 150 is configured on the lower surfaces of both ends of the strap loop 110, and the strap loops 110 are located on the outside of the back surface of the mobile case 200, and both ends of the strap loop 110 are respectively mobile cases. As a means to be attached to the inside of the rear surface of the mobile case 200 after passing through the camera exposure hole 210 and the charging port exposure hole 220 of the (200), the base sheet 151, one surface of the base sheet 151 It has a double-sided tape structure including a first adhesive layer 152 and a second adhesive layer 153 that are respectively applied to the other surface and the inside of the bottom surface of the strap loop 110 and the back surface of the mobile case 200, respectively. .

The base sheet 151 is strongly adhered to the lower surface of the strap loop 110 through the first adhesive layer 152 and relatively weakly attached to the adhered surface of the mobile case 200 through the second adhesive layer 153. As a member, a known non-woven fabric or a synthetic resin material having a thickness of 0.1 mm to 0.2 mm may be used, so a detailed description thereof will be omitted.

Here, the base sheet 151 has a thickness of 0.1 mm to 0.2 mm or less, and when the thickness exceeds 0.2 mm, the thickness of the strap loop 110 and the adhesive member 150 becomes thicker and the mobile case. When attached to the inside of the back surface of (200), the mobile mounting is not stably performed on the mobile case 200, and when the thickness is less than 0.1mm, the first adhesive layer 152 and the second adhesive layer 153 Since impregnation application is impossible, it is desirable to have the above critical significance.

The first adhesive layer 152 is an adhesive layer that is configured on the upper surface of the base sheet 151 so that the base sheet 151 is attached to the lower surface of the strap loop 110, a known polyurethane primer or rubber type adhesive and room temperature curing agent It may be composed of, and is applied to a thickness of 0.03mm to 0.1mm.

Here, the first adhesive layer 152 is applied to a thickness of 0.03mm to 0.11mm, and when it is less than the thickness, penetrates into the lower surface of the strap loop 110 and the upper surface of the base sheet 151 (uneven surface). If not, the adhesive strength is greatly reduced, and if it exceeds the thickness, the gelation layer becomes thicker and the thickness of the overall adhesive member 150 is increased, causing interference when mounting the mobile to the mobile case 200, thereby making stable mounting difficult. Since there is a problem, it is desirable to have the critical significance as described above.

The second adhesive layer 153 is an adhesive layer that is configured on the lower surface of the base sheet 151 such that the base sheet 151 or the strap loop 110 is attached to or detached from the adhered surface of the mobile case 200, It is desirable to have an elastic gel structure capable of completely peeling without residue from the adhered surface and at the same time re-attaching after peeling.

Here, the second adhesive layer 153 is 4,4-dicyclohexylmethane diisocyanate, 3,3-dimethyl-4,4-diphenylmethane diisocyanate, 1,4-cyclohexyl diisocyanate, 1,5 -After heating 100 parts by weight of the composite of naphthalene diisocyanate 10: 7: 5: 3 to 100 ~ 120 ℃, add 50 ~ 70 parts by weight of polyethylene adipate, react for 8-10 hours, and then cool to room temperature. A solution prepared, 100- parts by weight of neopentyl glycol, 80-95 parts by weight of 1,6-hexanediol, 70-85 parts by weight of vinyl tree (2-methoxyethoxysilane), 1,4-butanediol 60 ~ 75 parts by weight, 50 to 65 parts by weight of trimethylene glycol di-para aminobenzoate, 40 to 55 parts by weight of 1,4-bis2-hydroxypropyl-2-methylpiperazine, 30 to tetramethylpiperazine Liquid B consisting of 45 parts by weight, 20 to 35 parts by weight of tetrabutyl titanate and 3 to 5 parts by weight of titanate as a coloring pigment and 1 to 3 parts by weight of Iron Blue The mixed and stirred polyurethane composition is coated with a thickness of 0.2 mm to 2 mm, more preferably a predetermined thickness when the base sheet 151 has a lower surface.

4,4-dicyclohexylmethane diisocyanate, 3,3-dimethyl-4,4-diphenylmethane diisocyanate, 1,4-cyclohexyl diisocyanate, 1,5-naphthalene diisocyanate, respectively 10: 7: The composite mixed in a volume ratio of 5: 3 provides adsorption and adhesion functions, and provides a function of converting the compositions into urethane and terminating the reaction in a short time by increasing the reaction rate of the compositions.

At this time, the volume ratio of 4,4-dicyclohexylmethane diisocyanate, 3,3-dimethyl-4,4-diphenylmethane diisocyanate, 1,4-cyclohexyl diisocyanate, 1,5-naphthalene diisocyanate, When outside the volume ratio of 10: 7: 5: 3, it is preferable to have the volume ratio as described above, since effects such as viscosity, adhesive strength, agitation and stability are reduced.

In addition, heating the composite to 100 to 120 ° C is preferable to have the heating temperature range as described above, since effects such as a swelling rate are lowered when outside the temperature range.

The polystyrene adipate provides a predetermined viscosity, and when it exceeds 50 to 70 parts by weight based on 100 parts by weight of the composite, the overall viscosity increases or decreases and the adhesiveness decreases, so the volume ratio as described above is reduced. It is desirable to have.

On the other hand, after adding polystyrene adipate to the composite, it is allowed to react for 8 to 10 hours and then cooled at room temperature. If it is out of the time and temperature, the swelling rate is lowered, so it has the same time and temperature. It is preferred.

On the other hand, the liquid B is a composition that reacts with them when mixed with the liquid A to improve the physical properties such as heat resistance, moisture resistance, and workability, as well as impact strength.

Neopentyl glycol is a material that provides the function of a plasticizer, and provides predetermined durability through curing of the liquid A, which is a polyurethane.

Hereinafter, 1,6-hexanediol, vinyl tree (2-methoxyethoxysilane), 1,4-butanediol, trimethylene glycol di-para aminobenzoate, 1,4-bis2-hydroxypropyl-2 -Methyl piperazine, tetramethyl piperazine, and tetrabutyl titanate have the above-mentioned parts by weight based on 100 parts by weight of the neopentyl glycol, respectively, if outside the above range, it is difficult to control the curing time and stirring It is preferable to have the weight part as described above because the residue is left when peeling from the surface to be adhered and curing is completely progressed after peeling, and re-adhesion becomes impossible.

Therefore, according to the second adhesive layer 153, the lower surface of the base sheet 151 can have an elastic gel structure, through which it can be completely peeled off without leaving any residue when peeling from the adhered surface, and the viscosity is maintained. The adhesive member 150 is used to replace the mobile case 200 or to adjust the length of the strap loop 110, even if it is reattached to the adhered surface after peeling, as it has a gelling state. Even if peeled off, reuse can be possible.

Here, the second adhesive layer 153 is applied in a thickness of 0.2 mm to 2 mm with respect to the base sheet having a thickness of 0.1 mm to 0.2 mm, but when the thickness is less than that, it cannot penetrate into the base sheet at a predetermined depth. When the adhesive strength is greatly reduced and exceeds the thickness, there is a problem that the adhesive layer has a larger adhesive force than the first adhesive layer 152 applied to the upper surface of the base sheet 151, and thus residue remains on the adhered surface. It is desirable to have a critical significance such as

Therefore, according to the adhesive member 150, both side ends of the strap loop 110 are respectively formed on the lower surface of the strap loop 110 and the strap loop 110 is located outside the rear surface of the mobile case 200, respectively. After passing through the camera exposure hole 210 and the charging port exposure hole 220 of the mobile case 200 may be attached to the inside of the back surface of the mobile case 200.

In addition, as the second adhesive layer 153 attached to the mobile case 200, which is the adhered surface, is made of an elastic gel composition, when peeling from the adhered surface, no residue remains and can be removed cleanly, and the viscosity is maintained even after peeling. Through having a re-attachable state, the length of the strap loop 110 can be adjusted and reuse for the mobile case 200 can be made possible.

On the other hand, in the present invention, the upper and lower surfaces of the base sheet 151, '凸' shaped bone is formed at a predetermined depth to the upper and lower surfaces of the base sheet 151, respectively, the first adhesive layer 152 and the 2 The adhesive layer 153 can be applied while having a stronger adhesive force, through which the base sheet 151 is separated from the first adhesive layer 152 impregnated in the strap loop 110 when peeling from the adhered surface It is preferable that the substrate sheet 151 is not separated from the second adhesive layer 153 in a state where the second adhesive layer 153 is left on the adhered surface. That is, it is preferable that the first adhesive layer 152 and the second adhesive layer 153 in a liquid or gel state are applied and penetrated into the bones formed on the upper and lower surfaces of the base sheet 151 to have stronger adhesion.

In addition, it is preferable that the lower surface of the second adhesive layer 153 of the adhesive member 150 has a protective state by a release film.

Hereinafter, a method and operation of manufacturing the strap 100 for a mobile case according to a preferred embodiment of the present invention will be described.

First, the print layer 120 and the coating layer 130 are formed on the upper surface of the strap loop 110, and the slip prevention layer 140 is formed on the upper and lower surfaces of the strap loop 110.

Here, the strap loop 110 is preferably a polyester fabric made of 300 of 75 dyna.

Thereafter, the adhesive member 150 is formed on both side ends of the lower surface of the strap loop 110. At this time, the adhesive member 150 has a first adhesive layer 152 and a second adhesive layer ( 153) has a double-sided tape structure.

Here, the base sheet 151 has a known non-woven fabric or synthetic resin material having a thickness of 0.1mm to 0.2mm, and the first adhesive layer 152 is a polyurethane primer or rubber adhesive having a thickness of 0.03mm to 0.1mm. It is composed of a known method such as a room temperature curing agent, the second adhesive layer 153 is 4,4-dicyclohexylmethane diisocyanate, 3,3-dimethyl-4,4-diphenylmethane diisocyanate, 1,4- Cyclohexyl diisocyanate and 1,5-naphthalene diisocyanate each mixed with 10: 7: 5: 3, 100 parts by weight of a composite, heated to 100 to 120 ° C, and then added with 50 to 70 parts by weight of polystyrene adipate to add 8 to After reacting for 10 hours and cooling to room temperature, A solution prepared, 100 parts by weight of neopentyl glycol, 80-95 parts by weight of 1,6-hexanediol, 70-85 parts by weight of vinyl tree (2-methoxyethoxysilane) , 1,4-butanediol 60-75 parts by weight, trimethylene glycol di-para aminobenzoe 50-65 parts by weight, 40-55 parts by weight of 1,4-bis2-hydroxypropyl-2-methylpiperazine, 30-45 parts by weight of tetramethylpiperazine and 20-35 parts by weight of tetrabutyl titanate Liquid B, which is added and composed, is mixed and stirred and has a thickness of 0.2 mm to 2 mm.

Subsequently, the exposed portion of the camera 210 and the charging port of the mobile case 200 are respectively exposed while the adhesive members 150 formed on the lower surfaces of both ends of the strap loop 110 are located outside the rear surface of the mobile case 200. After penetrating the ball 220, it is attached to the inside of the back surface of the mobile case 200 so that the middle portion of the strap loop 110 is in close contact with the outside of the back surface of the mobile case 200, and thus, the strap loop 110 When the finger is inserted into the lower surface or the finger contacts the upper surface, a grip feeling and anti-slip function are provided to a user's finger gripping the mobile case 200 through the anti-slip layer 140.

Hereinafter, the effect of the strap 100 for a mobile case according to a preferred embodiment of the present invention will be described through specific embodiments.

When the strap loop 110 of the polyester fabric comprising the printing layer 120, the coating layer 130, and the slip prevention layer 140 on the upper surface, an adhesive member 150 is formed at both end portions to produce a strap 100 for a mobile case. .

Here, the adhesive member 150 is a first adhesive layer comprising a base sheet 151 of a nonwoven material having a thickness of 0.1 mm and a rubber-type adhesive having a thickness of 0.03 mm on the upper surface of the base sheet 151 ( 152), and applied to the lower surface of the base sheet 151, 4,4-dicyclohexylmethane diisocyanate, 3,3-dimethyl-4,4-diphenylmethane diisocyanate, 1,4-cyclohexyldi After heating 100 parts by weight of the composite obtained by mixing isocyanate and 1,5-naphthalenediisocyanate at 10: 7: 5: 3, respectively, at 100 ° C, add 50 parts by weight of polyethylene adipate to react for 8 hours, and then cool to room temperature. Preparation A and 100 parts by weight of neopentyl glycol 80 parts by weight of 1,6-hexanediol, 70 parts by weight of vinyl tri (2-methoxyethoxysilane), 60 parts by weight of 1,4-butanediol, trimethylene glycol 50 parts by weight of di-para aminobenzoate, 1,4-bis2-hydroxypropyl-2-methylpiperazine 40 parts by weight, 30 parts by weight of tetramethyl piperazine and 20 parts by weight of tetrabutyl titanate are added and mixed and stirred, and a second adhesive layer 153 having a thickness of 0.2 mm is included.

When the strap loop 110 of the polyester fabric comprising the printing layer 120, the coating layer 130, and the slip prevention layer 140 on the upper surface, an adhesive member 150 is formed at both end portions to produce a strap 100 for a mobile case. .

Here, the adhesive member 150 is a first adhesive layer comprising a base sheet 151 of a nonwoven material having a thickness of 0.15 mm and a rubber adhesive having a thickness of 0.07 mm on the upper surface of the base sheet 151 ( 152), and applied to the lower surface of the base sheet 151, 4,4-dicyclohexylmethane diisocyanate, 3,3-dimethyl-4,4-diphenylmethane diisocyanate, 1,4-cyclohexyldi After heating 100 parts by weight of the composite obtained by mixing isocyanate and 1,5-naphthalenediisocyanate at 10: 7: 5: 3, respectively, at 110 ° C, add 60 parts by weight of polystyrene adipate to react for 9 hours, and then cool to room temperature. Preparation A and 100 parts by weight of neopentyl glycol 90 parts by weight of 1,6-hexanediol, 80 parts by weight of vinyl tri (2-methoxyethoxysilane), 70 parts by weight of 1,4-butanediol, trimethylene glycol 60 parts by weight of di-para aminobenzoate, 1,4-bis2-hydroxypropyl-2-methylpiperai 50 parts by weight of tetramethyl piperacillin binary 40 parts by weight of tetra-butyl titanate, 30 parts by weight of B liquid to be configured is added to the stirred mixture and a second adhesive layer 153 having a thickness of 1mm.

When the strap loop 110 of the polyester fabric comprising the printing layer 120, the coating layer 130, and the slip prevention layer 140 on the upper surface, an adhesive member 150 is formed at both end portions to produce a strap 100 for a mobile case. .

Here, the adhesive member 150 is a first adhesive layer comprising a base sheet 151 of a non-woven material having a thickness of 0.2 mm and a rubber-type adhesive having a thickness of 0.1 mm on the top surface of the base sheet 151 ( 152), and applied to the lower surface of the base sheet 151, 4,4-dicyclohexylmethane diisocyanate, 3,3-dimethyl-4,4-diphenylmethane diisocyanate, 1,4-cyclohexyldi After heating 100 parts by weight of the composite obtained by mixing isocyanate and 1,5-naphthalenediisocyanate at 10: 7: 5: 3, respectively, at 120 ° C, 65 parts by weight of polystyrene adipate was added, reacted for 10 hours, and then cooled to room temperature. Preparation A and 100 parts by weight of neopentyl glycol, 95 parts by weight of 1,6-hexanediol, 85 parts by weight of vinyl tri (2-methoxyethoxysilane), 75 parts by weight of 1,4-butanediol, and trimethylene glycol 65 parts by weight of di-para aminobenzoate, 1,4-bis2-hydroxypropyl-2-methylpiperazine 55 parts by weight, 45 parts by weight of tetramethyl piperazine and 35 parts by weight of tetrabutyl titanate are added and mixed and stirred, and a second adhesive layer 153 having a thickness of 2 mm is included.

As a reference example or an evaluation example of the strap 100 for a mobile case manufactured according to the above Examples 1 to 3, instead of the adhesive member 150, a '3M # 9395LE' product of '3M Company' commercially available was constructed. A strap for the mobile case is manufactured.

Subsequently, in order to compare the presence or absence of residue after peeling of the straps for the mobile case manufactured as described above, a crosscut test was performed on the straps for the mobile case manufactured according to Examples 1 to 4, and the crosscut test was performed. Is a test that draws the test pieces of adhesive members at 1mm intervals to make a cross-eye (11 vertical * 11 horizontal: 100 cells), adheres OPP (Oriented Polypropylene) tape, and pulls strongly once in the vertical direction. Table 1 shows the number of cells present on the detachable surface of the OPP tape, that is, the residue that is not peeled off from the adhered surface.

Example 1 Example 2 Example 3 Example 4 After peeling, the residue
Number of cells present One 2 3 60 Judgment Good Good Good Bad

Accordingly, according to the strap 100 for the mobile case of the present invention, it can be seen that the residue does not exist when removed from the mobile case 200 compared to a commercial product, and is clearly removed, and through this, the strap for the mobile case 100 To remove the mobile case 200 from the mobile case 200, the mobile case 200 may be prevented from being contaminated by residues present when the adhesive member 150 is peeled off.

In addition, in order to compare the re-adhesiveness after peeling of the straps for the mobile case manufactured as described above, a re-adhesiveness test was performed on the straps for the mobile cases prepared according to Examples 1 to 4, and the re-adhesiveness In the test, the test pieces of the adhesive members were cut to an area of 1 cm in width and 1 cm in length, and then peeled while attaching them under the same conditions to the inside of the back surface of the mobile case 200, and the test pieces were continuously viscous colored paper 10 cm in width and 10 cm in length As a test for lifting for 10 seconds or more at a height of 1 m after pasting through, the number of times of successive pasting of a plurality of colored papers is shown in Table 2 below.

Example 1 Example 2 Example 3 Example 4 After peeling
The number of times after confetti was pasted 320 317 337 32 Judgment Good Good Good Bad

Accordingly, according to the strap 100 for a mobile case of the present invention, it can be seen that it has a high re-adhesiveness even after being peeled from the mobile case 200 compared to commercial products, and through this, the length of the strap 100 for the mobile case It may be possible to reuse even if the control or the mobile case 200 is replaced.

Accordingly, according to the present invention, the strap loop 110 of the band shape is configured to fit or contact the user's finger on the back surface of the mobile case 200 to prevent the mobile from falling and improve convenience in use.

In addition, both ends of the strap loop 110 are connected to the camera exposure hole 210 and the charging port exposure hole 220 of the mobile case 200 while the strap loop 110 is located outside the rear surface of the mobile case 200. After each penetration, it can be simply implemented through attachment to the inside of the rear surface of the case 200.

In addition, when the both ends of the strap loop 110 is peeled from the adhered surface, the residue of the adhesive member 150 does not exist and can be peeled off cleanly.

In addition, even if both ends of the strap loop 110 are detached from the adhered surface and reattached, the length of the strap loop 110 is adjusted or reused even if the case 200 is replaced by having a high reattachment rate. You can.

In the above-described present invention, specific embodiments have been described, but various modifications may be carried out without departing from the scope of the present invention. Therefore, the scope of the design should not be determined by the described embodiments, but should be determined by the equivalents of the claims and claims.

Claims (6)

Strap loop 110 of the belt shape; A print layer 120 printed on the strap loop 110 to provide an advertisement function; Anti-slip layer 140 is provided on the middle portion of the strap loop 110 to provide an anti-slip function and improve the grip feeling; And both sides of the strap loop 110 is configured on the lower surface of the strap loop 110 is located on the outside of the rear surface of the mobile case 200, both ends of the strap loop 110, respectively, the camera exposure of the mobile case 200 After passing through the ball 210 and the charging port exposed hole 220 and includes an adhesive member 150 to be attached to the inside of the back of the mobile case 200,
The adhesive member 150,
Base sheet 151; And a first adhesive layer 152 and a second adhesive layer 153 which are respectively applied to one surface and the other surface of the base sheet 151 and attached to the lower surface of the strap loop 110 and the adhered surface of the mobile case 200, respectively. It has a double-sided tape structure,
The base sheet 151,
Non-woven fabric or synthetic resin having a thickness of 0.1mm to 0.2mm,
The first adhesive layer 152,
It consists of either a polyurethane primer or a rubber-type adhesive and a room temperature curing agent and has a thickness of 0.03mm to 0.1mm,
The second adhesive layer 153,
4,4-dicyclohexylmethane diisocyanate, 3,3-dimethyl-4,4-diphenylmethane diisocyanate, 1,4-cyclohexyl diisocyanate, 1,5-naphthalene diisocyanate, respectively 10: 7: A solution prepared by heating 100 parts by weight of the composite mixed with 5: 3 to 100 to 120 ° C., reacting for 8 to 10 hours by adding 50 to 70 parts by weight of polystyrene adipate, and then cooling to room temperature;
Neopentyl glycol 100 parts by weight 1,6-hexanediol 80-95 parts by weight, vinyl tree (2-methoxyethoxysilane) 70-85 parts by weight, 1,4-butanediol 60-75 parts by weight, trimethylene 50-65 parts by weight of glycol di-para aminobenzoate, 40-55 parts by weight of 1,4-bis2-hydroxypropyl-2-methylpiperazine, 30-45 parts by weight of tetramethylpiperazine, tetrabutyl tita 20 to 35 parts by weight of the nate and 3 to 5 parts by weight of the titanate as a coloring pigment and 1 to 3 parts by weight of the iron blue are added, and B liquid is formed.
The A liquid and B liquid have a mixed and stirred elastic gel structure,
Strap for a mobile case, characterized in that it has a thickness of 0.2mm to 2mm. According to claim 1, The anti-slip layer 140,
Strap for mobile cases, characterized in that the silicone is sprayed or laminated coating. delete delete delete delete

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