Biodegradable hair sheets for changing hair color, systems and methods of use

Abstract

Biodegradable hair sheets for changing hair color, systems and methods of use. The invention relates to a biodegradable hair sheet comprising a main body having a first surface and a second surface, the first surface having a texture. The main body is designed to receive a portion of hair on the first surface and the texture thereon in an open configuration. At least one attachment for securing the main body in a closed configuration is provided. The biodegradable hair sheet is composed of a material that degrades in water. Figure for abstract: 4

Description

Title of the invention: BIODEGRADABLE HAIR SHEETS FOR MODIFYING HAIR COLOR, SYSTEMS AND METHODS OF USE

[0001] Summary

[0002] The subject biodegradable hair foils, systems, and methods of use are provided for modifying or changing a hair color. By using the subject biodegradable hair foils, and methods of use, a hairstylist or user can avoid a traditional foil, for example, used to modify a hair color, such as to lighten hair, and instead use the hair foils for a cleaner and more environmentally efficient application process.

[0003] In one embodiment, a biodegradable hair sheet is provided. The biodegradable hair sheet is constructed by having a main body having a first surface and a second surface, the first surface having a texture thereon, the main body being designed to receive a portion of hair on the first surface and the texture thereon in an open configuration. At least one fastener for securing the main body in a closed configuration is provided. The biodegradable hair sheet is composed of a material that degrades in water, and breaks down and falls off the hair when the hair is rinsed.

[0004] In one embodiment, the material of the biodegradable capillary sheet is a water-soluble synthetic polymer, such as polyvinyl alcohol (PVOH, PVA, or PVA1), cellulose, starch, or combinations thereof. Preferably, the texture is located on substantially the entire first surface of the main body. In one embodiment, the texture is embossed or stamped into the first surface, needled, and / or via heat or mechanical processes, including thermal bonding in which fibers of the sheets are formed with different thickness to form textures or patterns. In another embodiment, the texture is coated on the first surface. In another embodiment, the texture is formed as a thin sheet attached to the first surface of the main body.

[0005] Yet another embodiment provides that the biodegradable hair sheet includes a color change indicator to visually indicate that a hair coloring or lightening process is complete.

[0006] Another embodiment provides that the biodegradable hair sheet comprises a hair coloring or lightening agent incorporated on the main body of the biodegradable hair sheet. Preferably, the biodegradable hair sheet is provided in the form of a kit and comprises a spray-on developer for activating the hair coloring or lightening agent.

[0007] In one embodiment, the fastener includes one or more foldable tabs designed to lock the main body in place when the main body is in the closed configuration.

[0008] In one embodiment, the at least two foldable tabs may have a tab length such that the at least two foldable tabs do not cross or contact each other and are designed to be folded to secure the main body in the closed configuration.

[0009] In another embodiment, the at least two foldable tabs comprise first and second foldable panels with one or more adhesive portions and are designed to fold over and adhere to each other. The first and second foldable panels may be composed of laminated wax paper.

[0010] Another embodiment provides that the at least one fastener comprises one or more metal strips. The one or more metal strips may be centrally located within the main body extending from a top of the main body to the base of the main body.

[0011] In one embodiment, a method of coloring or lightening hair using biodegradable hair foils is provided. The method, in a non-limiting order, comprises the steps of: selecting a portion of hair and one or more biodegradable hair foils, the biodegradable hair foil comprising: a main body having a first surface and a second surface, the first surface having a texture thereon, the main body being designed to receive a portion of hair on the first surface and the texture thereon in an open configuration and forms the inner surface facing the section of hair when placed on the main body; and at least one fastener for securing the main body in a closed configuration; wherein the biodegradable hair foil is composed of a material that degrades in water;placing the hair portion on the first surface of the main body of the biodegradable hair sheet; applying a hair coloring or lightening agent to the hair; rolling or folding the main body and the hair portion; securing the main body in a closed configuration; after a period, rinsing with water to remove the hair coloring or lightening agent and the biodegradable hair sheet. ;

[0012] In one embodiment, the hair coloring or lightening agent is incorporated on the main body of the biodegradable hair sheet, and wherein the hair coloring or lightening agent is spring activated with a re- revealer.

[0013] Another embodiment provides that the fastener includes one or more bendable tabs located on and extending from a top portion on opposing side walls of the main body designed to lock the main body in place when the main body is in the closed configuration.

[0014] In another embodiment, the at least two foldable tabs comprise first and second foldable panels composed of laminated wax paper having one or more portions of light adhesive, wherein the first and second foldable panels are folded and pressure-adhered to each other and the main body is rolled up and secured in the closed configuration.

[0015] In one embodiment, the at least one fastener includes a metal strip centrally located within the main body extending from a top of the main body to the base of the main body that secures the main body in the closed configuration when the main body is rolled up or folded.

[0016] In one embodiment, a method of manufacturing a biodegradable hair sheet is provided. The method comprises the steps of: forming a main body having a first surface and a second surface, the first surface having a texture thereon, the main body being configured to receive a portion of hair on the first surface and the texture thereon in an open configuration; and forming at least one fastener for securing the main body in a closed configuration; wherein the biodegradable hair sheet is composed of a material that degrades in water.

[0017] This summary is provided to present a selection of concepts in simplified form which are further described below in the detailed description. This summary is not intended to identify key features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter. Description of the Drawings

[0018] The foregoing aspects and advantages of the inventive technology will be better appreciated by a better understanding thereof with reference to the following detailed description, taken in conjunction with the accompanying drawings, in which:

[0019] [Fig-1] [Fig. 1] illustrates a top plan view of one embodiment of the biodegradable capillary sheet;

[0020] [Fig.2] [Fig.2] illustrates the biodegradable capillary sheet of [Fig.l] folded or rolled into a closed configuration and secured by means of fasteners, here shown in the form of foldable tabs;

[0021] [Fig.3] [Fig.3] illustrates a use of the biodegradable capillary sheet of the [Fig.l];

[0022] [Fig.4] [Fig.4] illustrates a top plan view of one embodiment of the biodegradable capillary sheet;

[0023] [Fig.5] [Fig.5] illustrates the biodegradable capillary sheet of [Fig.4] with fasteners folded over each other, and the main body and fasteners being folded or rolled into a closed configuration;

[0024] [Fig.6] [Fig.6] illustrates a use of the biodegradable capillary sheet of [Fig.4];

[0025] [Fig.7] [Fig.7] illustrates a top plan view of one embodiment of the biodegradable capillary sheet;

[0026] [Fig.8] [Fig.8] illustrates the biodegradable capillary sheet of [Fig.7] with fasteners presented in the form of a metal malleable wire and a sheet being folded into a closed configuration; and

[0027] [Fig.9] [Fig.9] illustrates a use of the biodegradable capillary sheet of [Fig.7], Detailed description

[0028] Hair lightening or highlighting has been around for centuries, but the methods of applying bleaching or lightening solutions to hair have changed generally. For example, major changes have typically involved a shift from cap-based coloring techniques to foils, which are discarded after use. Removing each foil can be time-consuming, and may cause the user / hairdresser to come into contact with the bleaching / lightening solution, and after the foils are removed, they are thrown away.

[0029] The biodegradable hair foils of the invention provide advantages over current foils in that the foils of the invention are made of a biodegradable material for environmentally friendly applications. Due to the biodegradability, the hair foils of the invention do not have to be removed from the hair, but can be rinsed directly from the hair at the same time as the bleaching / lightening solution is rinsed out, thereby saving time and mitigating waste in the environment. Preferably, the biodegradable hair foils are composed of a water-soluble synthetic polymer, such as polyvinyl alcohol (PVOH, PVA or PVA1), a cellulose and starch fiber and / or combinations thereof. In one embodiment, the biodegradable capillary sheet material is poly(vinyl alcohol) (PVOH, PVA, or PVA1), cellulose, starch, or combinations thereof.The main body may be formed from a single sheet, or may be formed from one or more sheets or plies of thin biodegradable material.

[0030] The biodegradable capillary sheet or sheets may be made of one or more of recyclable materials, compostable materials, sustainable materials, biodegradable materials, a plant-derived material, and the like that are water-soluble. Biodegradable polymers, biodegradable polyesters, biodegradable polyurethanes, biodegradable starches, biodegradable cellulosic materials, biodegradable aliphatic polyesters, and the like are also contemplated. Other contemplated materials include water-soluble materials composed of bamboo or wood pulp or bagasse and / or thin films that are bound by means of starch and readily dissolve in water. In one embodiment, the biodegradable sheets are made of non-woven polyvinyl alcohol, optionally impregnated with active ingredients.These active ingredients may include hair coloring agents, with tints and / or pigments, hair lightening / bleaching agents and / or hair treatment agents.

[0031] Undulations or textures are preferably integrated on the surface and / or body of the biodegradable hair sheets of the invention to secure the sheets in place while they are applied to the hair during lightening or highlighting. The texture may be formed through heat or mechanical processes. A texture may be formed by stamping, embossing, needling, coating, and / or thermal bonding where fibers of the sheet are formed with different thickness to form textures or patterns. The texture may be formed as a thin texture or a formed sheet attached to the first surface of the main body. The texture facilitates saturation of the hair dye / coloring agent and / or lightening / bleaching agents around the hair while also helping to secure the hair sheet to the hair when in the closed configuration.Advantageously, when the lightening or highlighting application is complete, the user or hairdresser can simply rinse the hair with the biodegradable sheets and the applied hair lightening agent directly into a sink or wastewater tank.

[0032] [Fig.l] illustrates a top plan view of one embodiment of the biodegradable capillary sheet, shown generally with reference numeral 10. [Fig.2] illustrates the biodegradable capillary sheet of [Fig.l] folded or rolled into a closed configuration and secured by means of fasteners, here shown in the form of foldable tabs. [Fig.3] illustrates one use of the biodegradable capillary sheet of [Fig.l].

[0033] Referring to Figures 1 to 3, the biodegradable hair sheet 10 is formed with a planar main body 11 with a first surface 12, which is the surface adapted to engage with a section of hair, and a second surface 13, or ex surface rear interior. The first surface 12 has a texture 14 thereon which may be formed as a separate biodegradable foil layer, or from one or more stamped, raised, or embossed portions on the first surface, or from a coating on the first surface 12. The texture 14 is here shown formed as a plurality of alternating elongated ridges 14a and valleys 14b. The texture 14 may be formed in a plethora of dots, shapes, and / or designs or patterns. When the texture 14 is a coating, preferably the coating is sprayed onto the first surface 12 and is formed of an inert biodegradable friction material, such as, but not limited to, starch, cellulose, PVA, or a combination thereof.

[0034] The texture 14 is preferably substantially integrated into / located on and / or covers the first surface 12 of the main body 11 such that the first surface 12 provides a large surface area of ​​texture 14. The texture 14 on the first surface 12 provides friction against the hair strands of the selected hair portion, while providing ease of application of the hair coloring and / or bleaching agent (lightening agent) to the hair and elongated valleys and ridges 14b, 14a facilitate hair retention and distribution of the agent to the hair strands for improved application. After application of the hair coloring and / or bleaching / lightening agent to the hair, the biodegradable hair sheet 10 is folded or rolled up as demonstrated in Figures 2 and 3.

[0035] The main body 11 is designed to receive a portion of hair 30 on the first surface 12 and the texture 14 thereon in an open configuration. The biodegradable hair sheet 10 includes at least one fastener 20 for securing the main body 11 in a closed configuration, as shown in Figures 2 and 3. The biodegradable hair sheet 10 is composed of a material that degrades in water, so that, once applied to the hair, after a given period of time, the sheet 10 can be rinsed or washed directly from the hair together with the hair coloring or bleaching / lightening agent. Preferably, the biodegradable hair sheet material is selected from one of a PVA, cellulose, starch, or a combination thereof.

[0036] The biodegradable sheet 10 may include a color change indicator to visually indicate that a hair coloring or lightening process is complete. The indicator is preferably located on the outer or second surface 13 so that a user can easily determine when the hair coloring / lightening process is complete.

[0037] The hair coloring or lightening / bleaching agent may be applied to the hair section and the biodegradable hair sheet 10. Alternatively, the hair coloring or lightening agent is incorporated onto or into the body main body 11 of the biodegradable hair sheet 10, and a developer for activating the hair coloring or lightening agent is applied. The main body 11 may be formed as a single-ply sheet, or alternatively formed by one or more thin sheets. The structure of the main body 11 remains when an application of the hair coloring and / or hair lightening agent or a hair treatment agent is applied to the hair. It is noted that the sheet may have one or more hair treatment agents integrated therein, such as conditioning agents. The biodegradable hair sheet of the invention may be used for a plethora of hair applications and / or treatments, including coloring, dyeing, lightening, conditioning, balayage, hair highlighting and / or hair painting.The main body 11 may have fold or separation lines and / or perforations for ease of folding, and / or tearing to adjust the length of the main body / sheet and make the sheet longer and / or shorter.

[0038] Application of the developer may be by brush or paint application, and / or spray application. Where the sheet has one or more coloring agents and / or hair lightening agents incorporated therein, the agent may be spray coated onto the top texture / first surface of the main sheet, and / or incorporated into the fibers forming the sheet, such as by saturating the fibers in a vat, followed by sheet formation for interstitial bonding of the coloring agent or bleaching agent into the sheet fibers. The hair coloring agents may include direct dyes, pigment, and / or oxidative dyes. The developer may be brushed onto the hair section and the sheet and / or sprayed onto the hair section and / or the sheet.It is noted that in this embodiment, the sheet may be slightly thicker and / or include a second sheet or thin film barrier layer such that the sheet does not dissolve, or dissolves only minimally, with spray application of the developer, and ultimately dissolves during rinsing with significant amounts of water.

[0039] In the embodiment shown, the fastener 20 comprises one or more foldable tabs 21 designed to lock the main body 11 in place when the main body 11 is in the closed configuration during application of the hair coloring and / or bleaching and / or lightening agent, as shown in Figures 2 and 3. The at least two foldable tabs 21 preferably have a tab length T1 and a tab height Th, such that the at least two foldable tabs 21 do not cross or contact each other and are designed to be folded to secure the main body in the closed configuration, as shown in Figures 2 and 3 during application.

[0040] Foldable tabs 21 are designed to fold along a crease line toward the main body 11, and fold under the rolled or folded main body 11 onto the biodegradable capillary sheet 10 in the closed configuration. Preferably, the folding tabs 21 do not include adhesive, but are secured by folding and refolding in place.

[0041] In operation, as best illustrated in [Fig. 3], a selection of hairs 30 is placed on the biodegradable hair sheet 10, which is made of water-degradable material, such as PVA / cellulose and / or starch, and then the hair coloring agent or bleach is brushed onto the hair and the main body 11 wound or folded, with the tabs 21 folded and tucked under at least one fold of the main body 11 to secure the main body 11 in the wound or folded position. Alternatively, the hair coloring agent or bleach is embedded within the fibers of the sheet 10, and after winding and locking the tabs 21, the developer is sprayed onto the wound hair sheet.

[0042] Referring to Figures 4-6, one embodiment of the biodegradable capillary sheet 100 is shown and described. In one embodiment, the biodegradable capillary sheet 100 is formed with a planar main body 111 with a first surface 112 with a texture 114 thereon, a second surface 113, and at least one fastener 120 formed as foldable tabs formed as first and second foldable panels 122a, 122b. Preferably, the first and second foldable panels extend the length of the main body 111, with a length PL equal to the length of the main body 111, or alternatively having a length PL < the length of the main body 111, ML, where PL > at least 1 / 2 of the length of the main body 111. The foldable panels 122a, 122b include one or more light adhesive portions / surfaces, 123a, 123b,

[0043] Preferably, the first panel 122a includes one or more first panel adhesive portions 123a, which may include a peelable cover, which is preferably located on an outer side 124a of the first panel 122a and is elongated to extend the length of the first panel 122a, extending along at least a portion proximate an end wall 125 of the first panel 122a, and / or along an inner ply wall 126. The second panel 122b preferably includes one or more second panel adhesive portions 123b, preferably located on an outer side 124b of the second panel 122b and is an elongated strip extending the width of the second panel 122b along at least a portion proximate a top wall 126 of the second panel 122b.

[0044] In this alternative arrangement, the first panel 122a is folded over a section of hair 130 placed on the main body 111 with the hair coloring and / or bleaching agent, or interstitially integrated within the main body 111, and one or more first panel adhesive portions 123a on an outer side 124a are exposed. Then, the second panel 122b is folded over the first panel 122a and pressed against the first panel adhesive portion 123a to adhere to the surface and enclose the hair section 130. The biodegradable hair foil 100 is then wound or folded and pressed against the second panel adhesive portion 123b on an outer side 124b of the secondary panel 122b to adhere to and secure the wound or folded biodegradable hair foil 100 in place in the closed configuration for the duration of the hair coloring and / or hair lightening / bleaching / highlighting process.Preferably, the first and second panels 122a, 122b are comprised of laminated wax paper having one or more portions / surfaces of light adhesive coated thereon in sections, preferably being fully coated with the adhesive on one of at least one of the front, back, and / or both walls of the panels.

[0045] The first and second light adhesive panels 122a, 122b are folded over each other to overlap, adhering against each other. Then, the main body 111 and the first and second panels 122a, 122b are folded or rolled up, and as it is rolled up or folded, the second outer surface 113 of the main body 11 adheres to the outer surface / exterior surface of the second panel 122b to secure the biodegradable sheet 100 in place in the closed configuration.

[0046] The texture 114 is herein shown formed as a plurality of alternating elongated ridges 114a and valleys 114b. The texture 114 may be formed in a plethora of points, shapes and / or designs or patterns. When the texture 114 is a coating, preferably the coating is sprayed onto the first surface 112 and is formed of a biodegradable inert friction material, such as, but not limited to, starch, cellulose, PVA or a combination thereof. The texture 114 is preferably substantially integrated into / located on and / or covers the first surface 112 of the main body 111 such that the first surface 112 provides a large surface area of ​​texture 114.The texture 114 on the first surface 112 provides friction against the hair strands of the selected hair portion, while providing ease of application of the hair coloring and / or bleaching agent (lightening agent) to the hair and the elongated valleys and ridges 114b, 114a facilitate hair retention and distribution of the agent to the hair strands for improved application.

[0047] The biodegradable sheet 100 may include a color change indicator to visually indicate that the hair coloring or lightening process is complete. The indicator is preferably located on the second or outer surface 113 so that a user can easily verify when the hair coloring / lightening process is complete.

[0048] The hair coloring or lightening / bleaching agent may be applied to the hair section and the biodegradable hair sheet 100. Alternatively, the hair coloring or lightening agent is incorporated on or into the main body 111 of the biodegradable hair sheet 100, and a spray developer for activation of the hair coloring or lightening agent is provided. Once applied to the hair, after a given period of time, the sheet 100 may be rinsed or washed directly from the hair together with the hair coloring or lightening / bleaching agent. Preferably, the biodegradable hair sheet material is selected from one of a PVA, cellulose, starch, or a combination thereof.

[0049] In operation, as best illustrated in [Fig. 6], a selection of hair 130 is placed on the biodegradable hair sheet 100, which is made of water-degradable material, such as PVA / cellulose and / or starch, and then the hair coloring agent or bleach is brushed onto the hair and the main body 111 and the first and second panels 122a, 122b are folded and adhered, one over the other to enclose the section of hair 130. The biodegradable hair sheet 100 is then wound or folded and secured by means of adhesive on the outer surface of the second panel 122b to secure the sheet in the wound or folded position / closed configuration.Alternatively, the hair coloring or bleaching agent is embedded within the fibers of the sheet 100, and after folding over the first and second panels 122a, 122b and / or rolling and locking the sheet 100 in place, a developer is sprayed or saturated onto the hair-wound sheet.

[0050] With reference to Figures 7 to 9, one embodiment of the biodegradable capillary sheet 200 is shown and described. In one embodiment, the biodegradable capillary sheet 200 is formed with a planar main body 211 with a first surface 212 with a texture 214 thereon, a second surface 213, and at least one attachment 220 comprises one or more metal strips 222. Preferably, the one or more metal strips 222 are centrally located within the main body 211 extending from a top 225 of the main body 211 to a base 226 of the main body 211. The metal strip 222 is a malleable deformable metal strip having a length that preferably extends the entire length of the main body 211, having a length MSL equal to the length of the main body 211, or alternatively having a length MSLL < the length of the main body 211, ML, where MSL > at least 1 / 2 of the length of the main body 211.

[0051] In this alternative arrangement, a section of hair 230 is placed on the main body 211 with the hair coloring and / or bleaching agent applied to, or interstitially integrated within, the main body 211. Next, the biodegradable hair sheet 200 is then wound or folded and is pressed to deform the metal strip 222 for securing the rolled or folded biodegradable hair foil 200 in place in the closed configuration for the duration of the hair coloring and / or hair lightening / bleaching / highlighting process.

[0052] The texture 214 is shown herein formed as a plurality of alternating elongated ridges, as discussed above. The biodegradable sheet 200 may include a color change indicator to visually indicate that a hair coloring or lightening process is complete.

[0053] The hair coloring or lightening / bleaching agent may be applied to the hair section and the biodegradable hair sheet 200. Alternatively, the hair coloring or lightening agent is incorporated on or into the main body 211 of the biodegradable hair sheet 200, and a spray developer for activation of the hair coloring or lightening agent is provided. Once applied to the hair, after a given period of time, the sheet 200 may be rinsed or washed directly from the hair together with the hair coloring or bleaching / bleaching agent. A residual metal wire 222 falls freely into the sink basin or crate, and may be easily collected and discarded. Preferably, the biodegradable hair sheet material is selected from one of PVA, cellulose, starch, or a combination thereof.

[0054] From the foregoing, it will be appreciated that specific embodiments of the technology have been described herein for purposes of illustration, but that various modifications may be made without departing from the disclosure.

[0055] Additionally, while various advantages and features associated with certain embodiments have been described above in the context of those embodiments, other embodiments may also exhibit such advantages and / or features, and not all embodiments need to exhibit such advantages and / or features to fall within the technology.

[0056] Where methods are described, the methods may include more, fewer, or different steps. Alternatively, steps may be performed in any appropriate order. Accordingly, the disclosure may encompass other embodiments not expressly shown or described herein.

[0057] While several embodiments have been illustrated and described, it will be appreciated that various changes may be made herein without departing from the spirit and scope of the inventive technology.

Claims

Claims

1. A biodegradable hair sheet (10, 100, 200), comprising: a main body (11, 111, 211) having a first surface (12, 112, 212) and a second surface (13, 113, 213), the first surface (12, 112, 212) having a texture (14, 114, 214) thereon, the main body (11, 111, 211) being adapted to engage with a portion of hair on the first surface (12, 112, 212) and the texture (14, 114, 214) thereon in an open configuration; at least one fastener (20, 120, 220) for securing the main body (11, 111, 211) in a closed configuration; and a color change indicator for visually indicating that a hair coloring or lightening process is complete, wherein the biodegradable hair sheet (10, 100, 200) is comprised of a material that degrades in water.

2. The biodegradable capillary sheet (10, 100, 200) of claim 1, wherein the material comprises one or more of PVA, cellulose, starch, and combinations thereof.

3. The biodegradable capillary sheet (10, 100, 200) of claim 1, wherein the texture (14, 114, 214) is embossed, needled or stamped into the first surface.

4. A biodegradable hair sheet (10, 100, 200) according to claim 1 comprising one or more hair treatments, hair coloring agents or hair lightening agents incorporated on the main body (11, 111, 211) of the biodegradable hair sheet (10, 100, 200).

5. The biodegradable capillary sheet (10) of claim 1, wherein the fastener (20) comprises one or more foldable tabs (21) configured to lock the main body (11) in place when the main body (11) is in the closed configuration.

6. The biodegradable capillary sheet (100) of claim 5, wherein at least two foldable tabs comprise first and second foldable panels (122a, 122b) with one or more adhesive portions (123a, 123b) and are configured to fold over and adhere to each other.

7. The biodegradable capillary sheet (200) of claim 1, wherein the at least one fastener (220) comprises one or more metal strips (222) centrally located within the main body

8. (211) extending from a top (225) of the main body (211) to the base (226) of the main body (211). A method of coloring or lightening hair using biodegradable hair sheets (10, 100, 200), the method comprising the steps of: selecting a portion of hair and one or more biodegradable hair sheets (10, 100, 200), the biodegradable hair sheet (10, 100, 200) comprising: a main body (11, 111, 211) having a first surface (12, 112, 212) and a second surface (13, 113, 213), the first surface (12, 112, 212) having a texture (14, 114, 214) thereon, the main body (11, 111, 211) being adapted to engage with to receive a portion of hair on the first surface (12, 112, 212) and the texture (14, 114, 214) thereon in an open configuration; at least one fastener (20, 120, 220) for securing the main body (11, 111, 211) in a closed configuration; and a color change indicator for visually indicating that a hair coloring or lightening process is complete, wherein the biodegradable hair sheet (10, 100, 200) is composed of a material that degrades in water; placing the hair portion on the first surface (12, 112, 212) of the main body (11, 111, 211) of the biodegradable hair sheet (10, 100, 200); apply a hair coloring or lightening agent to the hair; wrapping or folding the main body (11, 111, 211) and the hair portion; securing the main body (11, 111, 211) in a closed configuration; after a period, rinsing with water to remove the hair coloring or lightening agent and the biodegradable hair sheet (10, 100, 200).

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