Standalone flame-retardant waterproof cover for protecting mattress

Abstract

The standalone flame-retardant waterproof cover for protecting a mattress according to the present invention comprises: an outer cover, which is a flame-retardant layer, formed on the exterior of the flame-retardant waterproof cover and exposed to the outside; an adhesive surface formed on the inner surface of the outer cover and configured to bond the outer cover to a coated surface; the coated surface, which is a flame-retardant and waterproof layer formed on the inner surface of the adhesive surface and is in contact with the mattress; and a detachable portion, which is an entrance through which the mattress enters and exits the inside of the flame-retardant waterproof cover.

Description

Independent flame-retardant waterproof cover for mattress protection

[0001] The present invention relates to a flame-retardant waterproof cover for covering a mattress, and more particularly, to an independent flame-retardant waterproof cover for mattress protection that prevents fire from spreading to a mattress in the event of a fire by forming multiple flame-retardant waterproof covers to maintain the elasticity and resilience of the cover.

[0002] Generally, mattresses are made primarily of cotton and polyester to provide softness and elasticity, and the covers surrounding the mattress are also made of cotton and polyester.

[0003] However, the mattresses used in the past are made of flammable fabrics that contain air layers inside, and if they are made of organic fabrics, they have a low flash point, so they act as a medium for flame spread in the event of a fire, and there is a problem of emitting toxic gases.

[0004] Additionally, the cover that covers the surface of the mattress to prevent contamination of the mattress is also a flammable material like the mattress, and in the event of a fire, it spreads flames to the mattress and emits toxic gases.

[0005] To prevent such problems, mattresses with flame-retardant layers that have flame-retardant properties have recently been developed.

[0006] Patent No. 10-2151274 discloses a mattress having flame retardant properties that prevent flames generated from the outside from spreading to the inside of the mattress in the event of a fire by forming a flame retardant layer on the inside of the upper cover of the mattress.

[0007] Patent Publication No. 10-2018-0072252 discloses a mattress cover that surrounds the entire mattress structure, a flame-preventing layer is formed on the inside of the mattress cover to prevent flames from spreading between the mattress cover and the mattress structure, and a mattress cover including the same.

[0008] These technologies have the disadvantage that the flame-retardant layer is formed within or incorporated into the mattress, making it ineffective in protecting mattresses previously manufactured without a flame-retardant layer. Even if a small fire occurs, traces of the fire remain on the exterior of the mattress. Furthermore, the lack of a flame-retardant layer on the outermost surface of the mattress or cover, which comes into contact with the human body, prevents flames from spreading to the outermost surface.

[0009]

[0010] [Prior Art Literature]

[0011] [Patent Document]

[0012] (Patent Document 1) KR 10-2235940 B

[0013] (Patent Document 2) KR 10-2018-0072252 A

[0014]

[0015] The present invention relates to an independent flame-retardant waterproof cover for mattress protection that wraps around the outside of a mattress to prevent flames from spreading to the mattress.

[0016] The present invention also relates to a detachable, independent flame-retardant waterproof cover for mattress protection.

[0017] The present invention also relates to an independent flame-retardant waterproof cover for mattress protection, which has a coating surface that prevents moisture, insects, and foreign substances from penetrating into the interior of the mattress.

[0018] In addition, the present invention relates to an independent flame-retardant waterproof cover for mattress protection having elasticity and resilience by forming an outer cover with a knitted triple-layer fabric.

[0019] In addition, the present invention aims to prevent flames, moisture, insects, and foreign substances from penetrating into the mattress through the zipper fastening portion by covering the outer and inner sides of the zipper fastening portion.

[0020]

[0021] In order to achieve the above object, an independent flame-retardant waterproof cover for mattress protection according to one embodiment of the present invention may be formed by including an outer cover which is a flame-retardant layer formed on the outside of the flame-retardant waterproof cover and exposed to the outside, an adhesive surface formed on the inner side of the outer cover and combining the outer cover and the coating surface, a coating surface which is a flame-retardant and waterproof layer formed on the inner side of the adhesive surface and comes into contact with the mattress, and a detachable portion which is an entrance through which the mattress enters and exits the inside of the flame-retardant waterproof cover.

[0022] The outer cover includes a first flame-retardant layer formed on the outside of the outer cover, which is a flame-retardant fabric, a second flame-retardant layer formed on the inside of the first flame-retardant layer, and a cushion layer formed between the first flame-retardant layer and the second flame-retardant layer, which is a flame-retardant cotton, and the first flame-retardant layer and the second flame-retardant layer are characterized by being knitted with flame-retardant polyester yarn in a knitted jacquard form, and the cushion layer can be formed by being characterized by being formed by tearing the flame-retardant polyester yarn so that it is puffed up and forming it in the form of cotton.

[0023] The flame-retardant polyester yarn forming the first flame-retardant layer, the second flame-retardant layer, and the cushion layer may be formed by forming a polymer of terephthalic acid (TPA) and ethylene glycol (EG) in a molar ratio of 1:1.5 to 3, and adding 3-(hydroxyphenyl-phosphinyl propionic acid) (3-HPP) to the polymer, so that the phosphorus content is 6,000 PPM to 7,000 PPM.

[0024] The above coating surface can be formed with a characteristic of being formed with a polyurethane film coating paper with a phosphonate mixture added thereto to a thickness of 0.02 mm to 0.03 mm.

[0025] The above detachable portion may be formed as an opening in the bottom surface of the flame-retardant waterproof cover, and the detachable portion may be formed as characterized by including a band portion formed along the outer side of the detachable portion.

[0026] The detachable portion is formed to be openable and closable between the upper surface and the bottom surface of the flame-retardant waterproof cover, and the detachable portion may be formed to include a cut portion that is a cut portion through which the mattress enters and exits, a zipper formed on both sides of the cut portion inside the coating surface and opening and closing the cut portion, a ring connected to the zipper for opening or fastening the zipper, a hidden cover formed on the outside of the outer cover connected to the end of the zipper to cover the fastened ring so that it is not exposed to the outside, and an inner cover formed on the inside of the zipper along the zipper and covering the zipper fastening portion on the inside of the flame-retardant waterproof cover.

[0027] According to the independent flame-retardant waterproof cover for mattress protection of the present invention, an outer cover formed of a flame-retardant material and a flame-retardant coated coating surface are formed, thereby having the effect of preventing flames from spreading to the mattress.

[0028] In addition, the present invention has the effect of forming a detachable portion so that it can be separated from the mattress when contaminated.

[0029] In addition, the present invention has the effect of preventing contamination of the mattress by preventing moisture, insects, and external foreign substances from penetrating into the mattress through the coating surface.

[0030] In addition, the present invention has an outer cover that comes into contact with the body formed of a triple knit fabric, which has elasticity and resilience, and has the effect of allowing water vapor generated in the human body to be emitted to the outside.

[0031] In addition, the present invention has the effect of blocking the zipper fastening area to prevent flames from spreading to the mattress through the zipper fastening area, and preventing mattress contamination due to moisture, insects, and external foreign substances.

[0032]

[0033] FIG. 1 is a drawing showing an independent flame-retardant waterproof cover for mattress protection according to one embodiment of the present invention mounted on a mattress.

[0034] Figure 2 is a cross-sectional drawing showing a standalone flame-retardant waterproof cover for mattress protection mounted on a mattress in Figure 1.

[0035] FIG. 3 is a drawing showing a standalone flame-retardant waterproof cover for mattress protection according to another embodiment of the present invention mounted on a mattress.

[0036] Figure 4 is a drawing showing the detachable part of the independent flame-retardant waterproof cover for mattress protection mounted on the mattress in Figure 3.

[0037] Figure 5 is a combustion test report of the present invention.

[0038] Figure 6 is a smoke density test report of the present invention.

[0039] Figures 7 and 8 are flame retardant test reports of the present invention.

[0040] Figures 9, 10, 11, and 12 are flammability test reports of the present invention.

[0041] Figures 13 and 14 are water resistance test reports of the present invention.

[0042] FIG. 15 is a cross-sectional view showing a standalone flame-retardant waterproof cover for mattress protection according to another embodiment of the present invention mounted on a mattress.

[0043]

[0044] Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention may be implemented in various different forms and is therefore not limited to the embodiments described herein.

[0045] Throughout the specification, when a part is said to be "connected (connected, contacted, or coupled)" to another part, this includes not only cases where it is "directly connected," but also cases where it is "indirectly connected" with another part in between. Furthermore, when a part is said to "include" a component, this does not exclude other components, but rather implies that it may include other components, unless otherwise specifically stated.

[0046] The terminology used herein is merely used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this specification, it should be understood that the terms "comprises" or "has" indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0047] Hereinafter, preferred embodiments of the present invention will be described in detail with drawings to a degree that a person having ordinary skill in the art to which the present invention pertains can easily carry out the invention.

[0048]

[0049] FIG. 1 is a drawing showing an independent flame-retardant waterproof cover (100) for mattress protection according to one embodiment of the present invention mounted on a mattress (10), and FIG. 2 is a drawing showing a cross-section of the independent flame-retardant waterproof cover (100) for mattress protection in FIG. 1 mounted on a mattress (10).

[0050] The independent flame-retardant waterproof cover for mattress protection of the present invention (hereinafter referred to as a flame-retardant waterproof cover, 100) comprises an outer cover (110), an adhesive surface (130), a coating surface (150), and a detachable portion (170). The flame-retardant waterproof cover (100) of the present invention surrounds and protects the outside of a mattress (10). The flame-retardant waterproof cover (100) of the present invention is described as having an externally exposed direction as the outside and a mattress direction as the inside when mounted on a mattress (10).

[0051] The flame-retardant waterproof cover (100) of the present invention surrounds and protects the outside of a mattress (10). The flame-retardant waterproof cover (100) of the present invention is characterized in that the outer cover (110) and the coating surface (150) are flame-retardant, so that the mattress (10) surrounded by the flame-retardant waterproof cover (100) is protected from flame. The flame-retardant waterproof cover (100) of the present invention is characterized in that a detachable portion (170) is formed so that the flame-retardant waterproof cover (100) can be smoothly attached and detached from the mattress (10). The flame-retardant waterproof cover (100) of the present invention is independent, so that when it becomes contaminated, it can be separated from the mattress (10) and washed, or a new flame-retardant waterproof cover (100) can be placed on the mattress (10).

[0052] The outer cover (110) includes a first flame-retardant layer (111), a second flame-retardant layer (113), and a cushion layer (115). The outer cover (110) is a flame-retardant layer formed on the outside of the flame-retardant waterproof cover (100) and exposed to the outside. The outer cover (110) is characterized by forming the flame-retardant layer in three layers: the first flame-retardant layer (111), the second flame-retardant layer (113), and the cushion layer (115), thereby protecting the mattress (10) from external flames. The outer cover (100) has an internal structure formed in a triple weave, thereby providing the user with a three-dimensional effect and a cushioned feel.

[0053] The first flame-retardant layer (111) is a flame-retardant fabric formed on the outside of the outer cover (110). The first flame-retardant layer (111) is knitted with flame-retardant polyester yarn to prevent flames from spreading to the inside of the flame-retardant waterproof cover (100).

[0054] The second flame-retardant layer (113) is a flame-retardant fabric formed on the inner surface of the first flame-retardant layer (111). The second flame-retardant layer (113) is knitted with flame-retardant polyester yarn to prevent flames from spreading to the inner side of the flame-retardant waterproof cover (100).

[0055] The above first flame-retardant layer (111) and second flame-retardant layer (113) are characterized by being knitted with flame-retardant polyester yarn in a knitted jacquard form. The above first flame-retardant layer (111) and second flame-retardant layer (113) are knitted in a knitted jacquard form, so they have excellent elasticity, heat retention, and breathability, and have the effect of discharging sweat and moisture generated from the human body to the outside and evaporating them.

[0056] The above cushion layer (115) is a flame-retardant cotton formed between the first flame-retardant layer (111) and the second flame-retardant layer (113). The cushion layer (115) is made of flame-retardant polyester yarn and prevents flames from spreading to the inside of the flame-retardant waterproof cover (100). The cushion layer (115) is characterized by being formed in the shape of cotton by tearing the flame-retardant polyester yarn so that it is puffed up. The cushion layer (115) is formed in the shape of cotton so that the flame-retardant waterproof cover (100) has thickness, breathability, and elasticity, and has the effect of discharging sweat and moisture generated from the human body to the outside and evaporating them. The cushion layer (115) is characterized by being formed of yarn and being knittable so as to be connected to the first flame-retardant layer (111) and the second flame-retardant layer (113). The outer cover (110) is characterized in that the first flame-retardant layer (111), the second flame-retardant layer (113), and the cushion layer (115) are knitted so that they are connected to each other. The outer cover (110) has the effect of preventing the first flame-retardant layer (111), the second flame-retardant layer (113), and the cushion layer (115) from moving separately when the flame-retardant waterproof cover (100) is used by knitting them so that they are connected to each other.

[0057] The flame-retardant polyester yarn forming the first flame-retardant layer (111), the second flame-retardant layer (113), and the cushion layer (115) is formed of a polymer of terephthalic acid (TPA) and ethylene glycol (EG) in a molar ratio of 1:1.5 to 3, and is characterized in that the phosphorus content is 6,000 PPM to 7,000 PPM by adding 3-(hydroxyphenyl-phosphinyl propionic acid) (3-HPP) to the polymer.

[0058] The above adhesive surface (130) is formed on the inner surface of the outer cover (110) and combines the outer cover (110) and the coating surface (150). The adhesive surface (130) combines the outer cover (110) and the coating surface (150) by applying heat with a hot melt adhesive. The adhesive surface (130) is characterized by being environmentally friendly and harmless to the human body as a hot melt adhesive that does not use a solvent. The adhesive surface (130) tightly combines the outer cover (110) and the coating surface (150) and is characterized by being formed to have a thickness of 80 to 120 micrometers so that the outer cover (110) and the coating surface (150) do not separate. If the adhesive surface (130) is less than 80 micrometers, the outer cover (110) and the coating surface (150) may separate, and if it is more than 120 micrometers, there is a problem that the adhesive surface (130) may be recognized from the outside. The above adhesive surface (130) is formed of 0.5% to 0.7% wax, 0.3% to 0.7% petroleum resin, 0.5% to 0.7% nylon powder, 13% to 15% Lanoflex, and 60% to 70% ethylene vinyl acetate.

[0059] The above coating surface (150) is a flame-retardant and waterproof layer formed on the inner surface of the adhesive surface (130) and comes into contact with the mattress (10). The coating surface (150) is formed as a flame-retardant and waterproof film. The coating surface (150) is characterized by blocking the spread of flame to the mattress (10). The coating surface (150) is characterized by blocking moisture, bugs (bedbugs, dust mites, fleas, etc.) and external foreign substances (dust, skin waste) from entering from the outside of the flame-retardant and waterproof cover (100) by wrapping the mattress (10) from reaching the mattress (10). The above coating surface (150) prevents moisture, insects, and foreign substances from penetrating into the mattress (10), thereby allowing the mattress (10) to be used hygienically. The coating surface (150) also prevents skin waste, which serves as food for dust mites, from penetrating into the mattress (10), thereby preventing the occurrence of dust mites in the mattress (10). The coating surface (150) is formed with a thickness of 0.02 mm to 0.03 mm using a polyurethane film coating with a phosphonate mixture added thereto. The coating surface (150) is characterized in that it is coated with a polyurethane film and adheres closely to the mattress (10), thereby preventing the flame-retardant waterproof cover (100) from slipping.

[0060] The above detachable portion (170) is an entrance through which the mattress (10) enters and exits the inside of the flame-retardant waterproof cover (100). The detachable portion (170) is formed as an opening on the bottom surface of the flame-retardant waterproof cover (100). The detachable portion (170) is located on the bottom surface of the mattress (10), so that flames generated from the outside of the mattress (10) do not reach the mattress (10) through the detachable portion (170). The detachable portion (170) has the effect of being able to separate the flame-retardant waterproof cover (100) from the mattress (10) when the flame-retardant waterproof cover (100) is contaminated.

[0061] The above detachable portion (170) includes a band portion (171) formed along the outer side. The band portion (171) has elasticity to facilitate the detachment of the flame-retardant waterproof cover (100) from the mattress (10), and is characterized by pulling the flame-retardant waterproof cover (100) so that it adheres closely to the mattress (10).

[0062] The flame-retardant waterproof cover (100) of the present invention is characterized by using flame-retardant yarn (not shown) as the seam connecting each side. The flame-retardant yarn (not shown) is identical to the flame-retardant polyester yarn forming the outer cover (110). The flame-retardant yarn (not shown) has the effect of preventing flames from spreading to the mattress (10) through the seam.

[0063]

[0064] FIG. 3 is a drawing showing a standalone flame-retardant waterproof cover (200) for mattress protection according to another embodiment of the present invention mounted on a mattress (10), and FIG. 4 is a drawing showing a detachable part (270) of the standalone flame-retardant waterproof cover (200) for mattress protection mounted on a mattress (10) in FIG. 3.

[0065] Parts identical to those in FIGS. 1 and 2 are omitted for explanation because they have the same function. Comparing FIGS. 3 and 4 with FIGS. 1 and 2, the description will focus on parts related to the detachable portion (270) that is a component for detaching the flame-retardant waterproof cover (200) from the mattress (10).

[0066] The above detachable portion (270) includes a cut portion (271), a zipper (273), a ring (275), a hidden cover (277), and an inner cover (279). The detachable portion (270) is formed so as to be openable between the upper surface and the bottom surface of the flame-retardant waterproof cover (200). The detachable portion (270) is opened to cover the flame-retardant waterproof cover (200) on the mattress (10). The detachable portion (290) is closed after the mattress (10) is inserted to block external contamination.

[0067] The above cut portion (271) is a cut portion through which the mattress (10) enters and exits. The above cut portion (271) is a cut portion formed between the upper surface and the bottom surface of the flame-retardant waterproof cover (200), and the flame-retardant waterproof cover (200) is placed on the mattress (10). The above cut portion (271) is formed along at least two of the front, back, left, and right surfaces of the flame-retardant waterproof cover (200) to a length longer than the width of the mattress (10).

[0068] The zipper (273) is formed on the inside of the coating surface (250) on both sides of the cut portion (271) and opens and closes the cut portion (271). The zipper (273) is characterized in that it is attached to the inside of the coating surface (250) and does not expose to the outside when fastened. The zipper (273) is characterized in that it is formed as a console zipper and does not expose to the outside when fastened. The zipper (273) is characterized in that when fastened, the outer cover (210), the adhesive surface (230), and the coating surface (250) cover the fastening portion of the zipper (273), thereby preventing flame, moisture, bugs (bedbugs, dust mites, fleas, etc.) and external foreign substances (dust, skin waste) from penetrating into the mattress (10).

[0069] The above ring (275) is connected to the zipper (273) to open or fasten the zipper (273).

[0070] The above hidden cover (277) is a cover formed on the outside of the outer cover (210) connected to the end of the zipper (273), and covers the fastened ring (275) so that it is not exposed to the outside. The above hidden cover (277) is characterized by having a flame-retardant and waterproof layer formed from the outside with an outer cover (not shown), an adhesive surface (not shown), and a coating surface (not shown), similar to the flame-retardant waterproof cover (200). The above hidden cover (277) has the effect of preventing flame, moisture, bugs (bedbugs, dust mites, fleas, etc.) and external foreign substances (dust, skin waste) from penetrating into the mattress (10) through the ring (275) and the connecting portion of the zipper (273) that are exposed to the outside when the zipper (273) is fastened.

[0071] The above hidden cover (277) is formed with a first fastening member (277-1) formed on the bottom surface and a second fastening member (277-2) formed on the outer surface of the outer cover (210) to secure the hidden cover (277) to the outer cover (210). The first fastening member (277-1) and the second fastening member (277-3) serve as means for securing the hidden cover (277) to the outer cover (210) and may be various fastening means such as Velcro, snap buttons, and rings.

[0072] The inner cover (279) is formed on the inside of the zipper (273) along the zipper (273) and covers the zipper (273) fastening portion on the inside of the flame-retardant cover (200). One side of the inner cover (279) is fixed to the zipper (273) and the other side is not fixed, so that when the cut portion (271) is opened, it opens along the fixed side of the zipper (273). The inner cover (279) is characterized in that, like the flame-retardant waterproof cover (200), it is formed from the outside with an outer cover (not shown), an adhesive surface (not shown), and a coating surface (not shown) to have a flame-retardant and waterproof layer. The inner cover (279) has the effect of preventing flame, moisture, insects (bedbugs, dust mites, fleas, etc.) and external foreign substances (dust, skin waste) from penetrating into the mattress (10) through the zipper (273) fastening portion.

[0073] The above flame-retardant waterproof cover (200) is characterized in that the outer cover (210) and the coating surface (250) cover the outside of the zipper (273) fastening portion, the inner cover (279) covers the inside of the zipper (273) fastening portion, and the hidden cover (277) covers the ring (275) fastening portion, thereby minimizing exposure of the mattress (10) due to the detachable portion (270), thereby preventing the spread of flames to the mattress (10) or external contamination.

[0074]

[0075] The flame-retardant waterproof cover (100, 200) of the present invention can be used in various ways for bedding such as toppers, pillows, and mattresses in addition to mattresses.

[0076]

[0077] Test items Test criteria Test results Note 1234545 degrees Combustion test Afterburn time Within 3 seconds 0.0 seconds 0.0 seconds 0.0 seconds - Before washing Afterburn time Within 5 seconds 0.0 seconds 0.0 seconds 0.0 seconds - Carbon area 30 cm 2 Within 5.8cm 2 5.6cm 2 5.5cm 2 --Carbonization length within 20cm 3.6cm 3.1cm 3.4cm --Number of contacts 3 times or more 3 times 3 times 4 times 3 times 3 times After-burning time within 3 seconds 0.0 seconds 0.0 seconds 0.0 seconds After-washing after-burning time within 5 seconds 0.0 seconds 0.0 seconds 0.0 seconds Carbonization area 30cm 2 Within 5.7cm 2 5.9cm 2 6.0cm 2 Carbonization length: Within 20cm3.5cm3.7cm3.4cmNumber of contacts: 3 times or more3 times3 times3 times3 times3 times

[0078] Referring to Figure 5, Table 1 shows the results of a 45-degree combustion test of the outer cover (110, 210) of the present invention, with a residual flame time of 0 seconds before washing, a residual flame time of 0 seconds, and a carbonization area of ​​5.5 cm. 2 5.8cm in diameter 2 , carbonization length 3.1cm to 3.6cm, flame retardant performance standard was met with 3 to 4 times of contact, residual flame time 0 seconds after washing, residual flame time 0 seconds, carbonization area 5.7cm 2 6.0cm in diameter 2 , it was found that the flame retardant performance standards were met with a carbonization length of 3.4 cm to 3.5 cm and a flame contact number of 3 to 4 times.

[0079]

[0080] Test ItemsTest CriteriaTest ResultsNote123Smoke Density TestDm (corr) 200 or less18.615.313.0KS M ISO 5659-2- 25kW / m 2 - Flaming mode

[0081] Referring to FIG. 6, Table 2 shows the results of a smoke density test of the outer cover (110, 210) of the present invention, and the smoke density was found to be 13.0 to 18.6, indicating that the smoke density test standard was met.

[0082]

[0083] 12345 Standard residual flame time (s) 000--within 3 Residual flame time (s) 000--within 5 Carbonized area (cm) 2 )10.211.410.9--30Within Carbonization length (cm)4.54.84.7--20Within Number of times of contact (times)454453 times or more

[0084] Referring to FIGS. 7 and 8, Table 3 shows the experimental results of the flame retardant performance of the flame retardant waterproof cover (100, 200) of the present invention, with a residual flame time of 0 seconds, a residual flame time of 0 seconds, and a carbonized surface area of ​​10.2 cm. 2 11.4cm in diameter 2 , it was found that the carbonization length was 4.5 cm to 4.8 cm and the number of times of contact was 4 to 5, satisfying the standards for thin cloth as notified by the National Fire Agency.

[0085]

[0086] Sample numberCombustion distance (mm)Combustion time (sec)Combustion rate (mm / min)#100A-0#200A-0#300A-0#400A-0#500A-0

[0087] Referring to FIGS. 9 to 12, Table 4 shows the experimental results testing the flammability of the coating surface (150, 250) of the present invention. The coating surface (150, 250) was cut to 356 mm × 100 mm × 0.4 mm and exposed to a flame for 15 seconds using a horizontal combustion tester. The combustion rate was found to be A-0. The A-0 grade means that the sample does not burn even when exposed to a flame for 15 seconds or burns before the flame reaches the first measurement mark, so there is no measurable combustion distance. The A-0 is the V-0 grade, which is just below the 5V grade, which is the highest flame retardancy grade among the 5 stages of the UL94 certification standard indicating the flame retardancy of the object, and has the fourth highest flame retardancy.

[0088]

[0089] Referring to Figures 13 to 14, the flame-retardant waterproof cover (100, 200) was tested for water resistance using a hydraulic pressure method with a water pressure increase rate of 60 cmH2O / min on the surface of the flame-retardant waterproof cover (100, 200), and was found to have a water resistance of 1,000 cmH2O or more.

[0090]

[0091] Fig. 15 is a cross-sectional view showing a standalone flame-retardant waterproof cover (300) for mattress protection according to another embodiment of the present invention, mounted on a mattress (10). Parts identical to those in Figs. 1 and 2 perform the same function and therefore are not described. Fig. 15 will be described with a focus on the outer cover (310) in comparison with Figs. 1 and 2.

[0092] The above flame retardant waterproof cover (300) is formed from the outer side with an outer cover (310), an adhesive surface (330), and a coating surface (350).

[0093] The above outer cover (310) is a flame-retardant fabric formed on the outside of the flame-retardant waterproof cover (300) and exposed to the outside. The above outer cover (310) is knitted with flame-retardant polyester yarn to prevent flames from spreading to the inside of the flame-retardant waterproof cover (300). The above outer cover (310) is composed of a single layer, which has the effect of reducing the manufacturing cost of the flame-retardant waterproof cover (300).

[0094]

[0095] In addition, the description of the present invention as described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical spirit or essential characteristics of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not limiting. For example, each component described as a single component may be implemented in a distributed or divided manner, and similarly, components described as distributed or divided may be implemented in a combined form within the scope understood by those skilled in the art.

[0096] The scope of the present invention is indicated by the claims described below, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

[0097]

[0098] [Explanation of symbols]

[0099] 10: Mattress

[0100] 100: Independent flame-retardant waterproof cover for mattress protection

[0101] 110: Outer cover 111: First flame-retardant layer

[0102] 113: Second flame retardant layer 115: Cushion layer

[0103] 130: adhesive surface 150: coating surface

[0104] 170: Detachable part 171: Band part

[0105] 200: Independent flame-retardant waterproof cover for mattress protection

[0106] 210: Outer cover 230: Adhesive surface

[0107] 250: Coated surface 270: Detachable part

[0108] 271: Cut 273: Zipper

[0109] 275: Ring 277: Hidden Cover

[0110] 279: My Cover

[0111]

[0112] radish

Claims

1. In the flame-retardant waterproof cover that surrounds and protects the outside of the mattress, An outer cover which is a flame-retardant layer formed on the outside of the flame-retardant waterproof cover and exposed to the outside; An adhesive surface formed on the inner surface of the outer cover and connecting the outer cover and the coating surface; A coating surface in contact with the mattress, with a flame retardant and waterproof layer formed on the inner side of the adhesive surface; and An independent flame-retardant waterproof cover for mattress protection, characterized in that it includes a detachable portion which is an entrance through which a mattress enters and exits the inside of the flame-retardant waterproof cover.

2. In paragraph 1, The above outer cover is, A first flame-retardant layer formed on the outer surface of the outer cover; A second flame-retardant layer formed on the inside of the first flame-retardant layer; and It includes a cushion layer which is a flame retardant cotton formed between the first flame retardant layer and the second flame retardant layer; The first flame-retardant layer and the second flame-retardant layer are characterized by being knitted with flame-retardant polyester yarn in a knitted jacquard format, The above cushion layer is a standalone flame-retardant waterproof cover for mattress protection, characterized in that it is formed by tearing flame-retardant polyester yarn to make it fluffy and forming it into a cotton shape.

3. In paragraph 2, A standalone flame-retardant waterproof cover for mattress protection, characterized in that the flame-retardant polyester yarn forming the first flame-retardant layer, the second flame-retardant layer, and the cushion layer is formed of a polymer of terephthalic acid (TPA) and ethylene glycol (EG) in a molar ratio of 1:1.5 to 3, and 3-(hydroxyphenyl-phosphinyl propionic acid) (3-HPP) is added to the polymer to have a phosphorus content of 6,000 PPM to 7,000 PPM.

4. In paragraph 1, A standalone flame-retardant waterproof cover for mattress protection, characterized in that the above coating surface is formed with a thickness of 0.02 mm to 0.03 mm using a polyurethane film coating paper to which a phosphonate mixture is added.

5. In paragraph 1, The above detachable portion is formed as an opening on the bottom surface of the flame-retardant waterproof cover, A mattress protection independent flame-retardant waterproof cover characterized in that the detachable portion includes a band portion formed along the outer side of the detachable portion.

6. In paragraph 1, The above detachable portion is formed so as to be openable between the upper surface and the bottom surface of the flame-retardant waterproof cover, The above detachable portion is a cut portion which is a cut portion through which the mattress is inserted and removed; A zipper formed on the inside of the coating surface on both sides of the above cut portion and opening and closing the cut portion; A ring connected to the above zipper to open or fasten the zipper; A hidden cover formed on the outside of the outer cover connected to the end of the zipper, which covers the fastened ring and prevents it from being exposed to the outside; An independent flame-retardant waterproof cover for mattress protection, characterized by including an inner cover formed on the inside of the zipper along the zipper and covering the zipper fastening area on the inside of the flame-retardant waterproof cover.

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