Natural hair extensions systems and related methods of use

Abstract

A hair extension system comprising a hair extension, formed of one or more, for example a plurality, of human hairs that are each formed of a strand with a base end and a free end, in which each strand has a length of 2.5 centimeters or less. A hair extension comprising one or more human hairs, each formed of a strand with a base end and a free end, in which each strand has a length of 2.5 centimeters or less.

Description

TECHNICAL FIELD

[0001] The present document relates to specialty eyelash and eyebrow extension systems created in specialty lengths under 2.5 cm made of human hair.BACKGROUND

[0002] The following paragraphs are not an admission that anything discussed in them is prior art or part of the knowledge of persons skilled in the art.

[0003] In the eyelash and hair brow extension industries, the dominant approach is to use artificial or synthetic extensions made of polybutylene terephthalate (PBT) material. Extensions are glued to a user's eyelashes or brow hairs, in order to add length, thickness, body, color, or other features, to the user's natural eye lashes or brow hairs.SUMMARY

[0004] Human hair has never been used in traditional lash and brow applications due to the complex nature of utilizing natural material which is finicky and difficult to produce. There are eyebrow extensions currently made of PBT material and also human hair (over 10 cm) but the author wishes to develop this technology of human hair extensions into widely accepted lash and brow application formats with natural hairs being developed into lengths under 2.5 cm.

[0005] A human hair extension system comprising: a hair extension, formed of one or more human hairs that are each formed of a strand with a base end and a free end, in which each strand has a length of 2.5 centimeters or less.

[0006] A hair extension comprising: one or more human hairs, each formed of a strand with a base end and a free end; and in which each strand has a length of 2.5 centimeters or less.

[0007] In various embodiments, there may be included any one or more of the following features: The one or more human hairs are a plurality of human hairs, secured together, for example with the base ends or mid-point (for example at an intermediate point between the base and free ends) secured together. The plurality of human hairs are one or more of adhered together, sewn together, clipped together, tied together, or clipped together. A base strip, in which the base ends or mid-point are secured together by being mounted to the base strip. The base strip comprises one or more of a sewn in thread or invisible band. The hair extension comprises a plurality of hair extensions. A trip, in which the plurality of hair extensions are mounted in one or more rows along an inside surface of tray. A protective cover secured over a peripheral edge of the tray and spanning an open end of the tray. The hair extension is secured to an eyelash, a brow, or facial hair, of a user. The free end of the one or more human hairs is tapered or blunt cut. A method comprising securing one or more human hairs of the hair extension of the hair extension system to an eyelash, a brow, or facial hair, of a user. An initial stage, removing the one or more human hairs from a tray. An initial stage, trimming one or more of the human hairs. Securing comprises securing the hair extension to the eyelash, brow, or facial hair of the user. Securing comprises adhering, taping-in, clipping, sewing, or weaving the one or more human hairs into the eyelash, a brow, or facial hair, of the user. The plurality of human hairs are one or more of adhered together, sewn together, clipped together, tied together, or clipped together. A base strip, in which the base ends are secured together by mounting to the base strip.

[0008] The foregoing summary is not intended to summarize each potential embodiment or every aspect of the subject matter of the present disclosure. These and other aspects of the device and method are set out in the claims.BRIEF DESCRIPTION OF THE FIGURES

[0009] Embodiments will now be described with reference to the figures, in which like reference characters denote like elements, by way of example, and in which:

[0010] FIG. 1 is a front-elevation view of a hair extension system, with the strands of hair attached to a backing member, and the strands being in a straight configuration.

[0011] FIG. 2 is a front-elevation view of a hair extension system, with the strands of hair attached to a backing member, and the strands being in a semi-curled configuration.

[0012] FIG. 3 is a front-elevation view of a hair extension system, with the strands of hair attached to a backing member, and the strands being in a curled configuration.

[0013] FIGS. 4 A-C are front-elevation views of embodiments of a hair extension system, with the strands of hair secured by a fastening member (such as adhesive), and arranged in a split open base fan (FIG. 3A), an anime spike tower (FIG. 3B), and a closed base fan (FIG. 3C).

[0014] FIG. 4D is a front-elevation view of a hair extension system, with a single strand of human hair.

[0015] FIG. 5 is a perspective view of a tray that houses multiple hair extension, with the hair extensions being secured to the tray via a backing member.

[0016] FIGS. 5A-5D are different configurations of the hair extension system, with single strands of hair, showing straight (FIG. 5A), semi-curled (FIG. 5B), curled (FIG. 5C), and extremely curled (FIG. 5D) configurations.

[0017] FIG. 6 is a perspective view of methods of applying hair extensions to a user's eyelashes and eyebrow.DETAILED DESCRIPTION

[0018] Immaterial modifications may be made to the embodiments described here without departing from what is covered by the claims.

[0019] The beauty industry is a multifaceted sector encompassing skincare, haircare, cosmetics, fragrance, and personal care, producing innovations in product formulations and application technologies. False eyelashes and brows, for example, have seen advancements with the use of synthetic materials that mimic natural hair, as well as magnetic and adhesive-free application techniques that reduce skin irritation. Key advancements in the broader industry include biotechnology, such as bio-fermented ingredients, and nanotechnology, which enhances the effectiveness of active ingredient delivery. Personalized beauty is also a growing focus, with AI and machine learning enabling customized product recommendations based on skin type, genetics, and environmental factors. Additionally, the industry's shift towards sustainability has led to the development of eco-friendly packaging and clean formulations, reducing synthetic chemical reliance and improving biodegradability. This focus on technology, personalization, and sustainability illustrates the industry's rapid evolution in response to consumer demand and environmental responsibility.

[0020] Hair extensions are versatile cosmetic enhancements used to add length, volume, and density to natural hair, eyelashes, eyebrows, or facial hair. They come in various types, including synthetic and natural human hair, to suit different needs and preferences. Scalp hair extensions are popular for transforming hairstyles and can be applied using methods like clip-ins, tape-ins, sew-ins, or keratin-bonded extensions, each designed to blend seamlessly with natural hair. Eyelash extensions, typically made from synthetic fibers, silk, or mink, are individually applied to natural lashes using medical-grade adhesive to create a fuller, longer lash line. Similarly, brow extensions are small, fine fibers that can be attached to existing brow hairs or directly onto the skin to enhance sparse or uneven brows. Facial hair extensions, though less common, may be used to enhance areas like beards or sideburns, offering a realistic solution for individuals with patchy facial hair growth. Each type of extension requires a specific application technique tailored to the area, hair type, and desired result, with proper maintenance ensuring longevity and comfort. This adaptability across various hair types and applications demonstrates the growing sophistication and customization available within the hair extension industry.

[0021] False eyelashes are a cosmetic enhancement designed to add length, volume, and definition to natural lashes. They come in various materials, including synthetic fibers, silk, and mink, each offering different aesthetic qualities and durability. Recent innovations in false eyelash design include the development of magnetic lashes, which use small, skin-safe magnets to attach to magnetic eyeliner, eliminating the need for traditional glue adhesives that can sometimes cause irritation. Additionally, eyelash extensions, a semi-permanent alternative, are applied individually with medical-grade adhesive, allowing for customization in length, thickness, and curl pattern. Advances in material science have led to the creation of lightweight, hypoallergenic lash fibers that mimic the texture and appearance of natural lashes while providing comfort and reducing potential skin sensitivity. The application process is also evolving, with DIY kits and precision tools enabling more user-friendly, professional-quality results. The industry's focus on innovative materials and improved application techniques has broadened the accessibility and appeal of false eyelashes across diverse consumer demographics.

[0022] Lash artists apply false eyelashes using a variety of techniques, depending on the client's desired look, the lash type, and the individual's natural lash health. The most common method is classic eyelash extensions, where individual synthetic, silk, or mink lash fibers are adhered to each natural lash using a medical-grade adhesive. For a fuller look, the volume technique is used, in which fans of multiple lightweight lash extensions are applied to each natural lash, creating a denser appearance. Hybrid lashes combine classic and volume techniques, blending single lashes with fans for a textured effect. Lash artists may also apply strip lashes, where a full band of lashes is attached along the natural lash line using temporary glue. Magnetic lashes are a more recent addition, utilizing magnetic particles in specialized eyeliners and lashes, which allow easy application without traditional adhesive. To ensure precision and safety, lash artists use fine tweezers, isolation tools, and magnifying lenses to separate natural lashes, preventing clumping and ensuring each extension adheres securely. Proper lash application relies on both technical skill and attention to detail, with customization based on eye shape, natural lash density, and client preferences.

[0023] Facial hair extensions are specialized cosmetic enhancements designed to add volume, length, and density to areas such as beards, mustaches, and sideburns for individuals with patchy or sparse facial hair growth. These extensions can be made from various materials, including synthetic fibers, and are typically available in a range of colors and textures to match the client's natural hair. The application process begins with a thorough consultation to assess the client's facial structure, desired style, and specific areas needing enhancement. After selecting suitable extensions, a facial hair artist meticulously applies them using a medical-grade adhesive or, in some cases, clip-in methods for easy removal and reapplication. The extensions are strategically placed to mimic natural hair growth patterns, ensuring a seamless blend with existing facial hair. Unlike traditional hair extensions, the application of facial hair extensions often requires more precision due to the smaller surface area and varied textures involved. The extensions can last from several days to a few weeks, depending on maintenance and aftercare, which involves keeping the area clean and avoiding excessive moisture or oil-based products. This technique not only enhances the aesthetic appearance of facial hair but also provides a temporary, non-invasive solution for those seeking fuller, more defined facial hair without permanent alterations.

[0024] An artist applies facial hair extensions through a meticulous process that enhances areas such as beards, mustaches, and sideburns for individuals with sparse or patchy growth. The application typically begins with a consultation to assess the client's desired style and the areas that need enhancement. The artist may choose between two primary methods: adhesive application or clip-in extensions. For adhesive application, the artist uses medical-grade adhesive to attach individual or small clusters of hair fibers directly to the skin or existing hair, ensuring a seamless blend with natural growth. This process involves precision, as the artist must mimic natural hair patterns to achieve a realistic look. In contrast, clip-in extensions can be used for temporary changes, allowing clients to add volume or length as desired without the permanence of adhesive applications. Compared to eyelash extensions, which are applied individually to each natural lash using fine tweezers and a precise technique to avoid clumping, or brow extensions, where fibers are placed strategically to follow the brow's natural arch, facial hair extensions require careful attention to the direction of hair growth and density to maintain a natural appearance. Additionally, facial hair extension applications can be more complex due to the diverse textures and lengths involved, while eyelash and brow applications often rely on uniformity in appearance. Despite these differences, all three techniques necessitate a high level of skill and artistry to ensure a natural and aesthetically pleasing outcome.

[0025] An artist applies hair extensions to the scalp through various techniques designed to add length, volume, and density to natural hair, catering to individual preferences and hair types. One common method is the tape-in technique, where pre-taped wefts of hair are applied by sandwiching sections of natural hair between two adhesive strips, providing a seamless blend and comfortable wear. Another popular approach is sew-in extensions, where wefts are attached to braids or a base created with the natural hair, utilizing a needle and thread to secure the extensions, ideal for thicker hair as it offers durability and versatility in styling. Keratin-bonded extensions involve applying small strands of hair that are fused to natural hair using a heated tool and keratin-based adhesive, ensuring a natural look and feel. Weaving, or the crochet method, uses a crochet hook to pull small sections of natural hair through braided cornrows, allowing for the attachment of loose wefts or pre-looped extensions, creating a fuller style without the need for adhesive. For a more comprehensive transformation, wigs can be applied, which cover the entire scalp and can be customized in color, length, and style. This method offers versatility and is suitable for individuals seeking a temporary or non-committal change. Unlike methods used for eyelash or brow extensions, which typically involve the application of individual fibers or clusters, scalp hair extensions require a broader approach to coverage and integration. Each technique necessitates careful consideration of the client's natural hair texture, color, and growth patterns to ensure a seamless blend and maintain a natural appearance. Proper installation and maintenance are crucial, as they determine the longevity of the extensions, with regular upkeep required to avoid tension on the natural hair and ensure overall hair health.

[0026] Brow extensions are a specialized cosmetic technique used to enhance eyebrow fullness, shape, and symmetry by attaching synthetic or natural fibers directly to existing brow hairs or the skin. This process is ideal for clients with sparse, asymmetrical, or over-plucked brows, offering a fuller, more structured look without permanent alteration. During application, a brow technician first assesses the client's facial structure and desired style, then maps out the optimal brow shape, creating a guideline for precise fiber placement. Individual fibers, matched in color and thickness to the client's natural brows, are adhered using a medical-grade adhesive applied with fine tweezers, either to existing hairs or directly onto the skin in areas with less density.

[0027] Brow extensions typically last between 7 and 14 days, depending on skin type, lifestyle, and adherence to aftercare practices, which include avoiding excessive moisture and oil-based products around the brow area. Compared to permanent techniques like microblading, brow extensions provide a temporary, non-invasive enhancement option, ideal for those seeking a natural-looking, flexible solution. This technique requires both precision and artistry, as it relies on meticulous fiber placement to mimic natural hair growth patterns and achieve a realistic, customized finish.

[0028] A brow artist attaches brow extensions using a meticulous process that combines precision, artistry, and specialized tools to achieve a natural-looking enhancement. First, the artist consults with the client to understand their desired brow shape, thickness, and density, then maps out the optimal brow structure to align with the client's facial features. After cleansing the brow area to remove oils and prepare the skin, the artist selects fibers that match the client's natural brow color and thickness. Using fine-tipped tweezers, individual brow fibers or small clusters are dipped in a skin-safe, medical-grade adhesive and carefully placed onto existing brow hairs or directly onto the skin in sparse areas. Unlike false eyelashes, which are typically applied in clusters or strips along the lash line, brow extensions require a more intricate technique of placing each fiber in the direction of natural hair growth, ensuring a realistic appearance. The artist must use steady hands and precise techniques to ensure each extension adheres properly without clumping or excessive adhesive, which can impact longevity. Once completed, the extensions create a fuller, well-defined brow line that typically lasts 7 to 14 days with proper aftercare, including avoiding moisture and oil-based products that may weaken the adhesive. This process requires both technical skill and aesthetic sense, similar to eyelash application, but emphasizes the subtle nuances of brow structure to achieve a balanced, natural result that enhances the client's facial symmetry.

[0029] Brow extensions are provided to brow artists in several forms to accommodate different application techniques and client needs. Typically, brow extensions come in pre-packaged kits that include individual brow fibers made from synthetic materials or natural human hair, available in various thicknesses, and colors to match diverse client hair types. These fibers are often sold in small bundles or strands, allowing artists to customize the look for each client based on their desired brow shape and density. Some suppliers offer adhesive kits alongside the fibers, consisting of skin-safe, medical-grade adhesives specifically formulated for brow applications, ensuring a secure bond while minimizing irritation. Strands are provided in lengths that require trimming to length. Additionally, brow extension kits may include tools such as fine-tipped tweezers for precise placement, adhesive applicators for controlled application, and brushes for blending and styling the fibers with natural brow hairs. To ensure quality and longevity, many manufacturers provide training materials or resources on best practices for application and aftercare, emphasizing the importance of proper installation techniques to achieve a natural look and maximize wear time. This comprehensive approach to supplying brow extensions enables artists to effectively enhance their clients'brows while maintaining high standards of safety and aesthetics.

[0030] False eyelashes and false eyebrows are manufactured from synthetic polymer fibers, with polybutylene terephthalate (PBT) being the predominant material due to its favorable balance of mechanical performance, processability, and cosmetic aesthetics. PBT is a semi-crystalline thermoplastic polyester that can be melt-extruded into continuous filaments with tightly controlled diameters, cross-sections, and surface finishes, enabling precise tailoring of fiber stiffness, curvature retention, and resilience. PBT fibers are engineered to be soft, strong, and hypoallergenic, offering a popular, cruelty-free alternative to animal hair, often marketed as “faux mink” or “faux silk” to describe their finish (matte / satin vs. glossy) and taper. Through controlled drawing, heat-setting, and cutting processes, PBT fibers can be produced with tapered tips, variable denier along their length, and consistent curl profiles that closely replicate the appearance and behavior of natural hair. These manufacturing controls allow suppliers to offer a wide range of lash and brow styles-including ultra-fine, lightweight fibers for natural looks and thicker, higher-modulus fibers for dramatic volume-while maintaining uniformity at scale. As a result of these material characteristics and processing capabilities, the lash and brow extension industry has expanded rapidly, as PBT-based fibers make it commercially feasible to deliver the high degree of variability, realism, durability, and repeatability demanded by professional and consumer markets.

[0031] Natural hair for use in the hair extension industry is typically sourced from various regions globally, with the highest quality hair often originating from countries like India, China, and Brazil. The sourcing process usually involves collecting hair from individuals, often through voluntary donations or purchases at temples, where donors may offer their hair as a religious or cultural practice. This hair is then carefully collected, sorted, and processed to remove impurities, including dirt and natural oils, ensuring it meets industry standards. Once cleaned, the hair is often sorted based on factors such as length, texture, and color, enabling manufacturers to provide a wide range of options to cater to diverse consumer needs. Natural hair is supplied to customers in various forms, including wefts, which are bundles of hair sewn together that can be applied using different techniques such as sew-in, tape-in, or glue-in methods. It can also be sold as single strands for keratin-bonded extensions or as bulk hair for weaving and braiding techniques. Additionally, natural hair is often available in pre-bonded or pre-tipped forms for quick application, allowing for greater flexibility in styling and installation. Some companies offer raw hair, which has not undergone extensive processing, allowing for a more natural look and feel, while others provide Remy hair, where the cuticles are aligned in the same direction to minimize tangling and enhance longevity. This variety in sourcing and product forms enables the hair extension industry to meet a wide array of consumer preferences and styling needs.

[0032] Dealing with natural hair for hair extensions presents several challenges that can impact the overall effectiveness and aesthetics of the application. One major difficulty is the variability in hair texture, density, and curl patterns among individuals, which requires careful matching to ensure a seamless blend with the client's natural hair. Additionally, the health and condition of natural hair play a crucial role; damaged or fine hair may not support heavy extensions, leading to tension or breakage. Maintaining the integrity of natural hair while integrating extensions necessitates skilled techniques and thorough assessments to prevent discomfort and ensure longevity. In contrast, the eyelash and brow extension industries have not widely adopted natural hair for several reasons. First, the delicate nature of natural lashes and brows makes them more prone to damage when using heavier, natural hair fibers, which could lead to breakage or irritation. Furthermore, synthetic materials can be engineered to replicate the look and feel of natural hair while offering greater durability and resistance to environmental factors, such as humidity and styling products. Synthetic hairs can be produced with tapered ends, and the author is not aware of a method that may achieve this result with human hair. Synthetic hairs are also non-porous and more resilient to chemical and soap exposure making them easy to work with. By contrast, human hairs are porous and flexible, making them difficult to work with. Synthetic hairs can also be heat treated or chemically to hold a curl long term, while a naturally straight hair will lose any induced curl over time. Synthetic hairs are also far less expensive than human hairs. Additionally, the standardization of synthetic fibers allows for more consistent results across various clients, simplifying the application process for lash and brow artists. As a result, while natural hair is favored in scalp hair extensions for its aesthetic appeal, the unique demands and requirements of eyelash and brow applications have led to a preference for synthetic alternatives.

[0033] Referring to FIGS. 1-6, a hair extension system 10 is disclosed. The hair extension system 10 comprises a hair extension 12. The hair extension 12 may be formed of one or more, for example a plurality, of human hairs 14, such as two, five, six, ten, hundreds, thousands, or more individual hairs. Each hair 14 may be formed of a strand 16 with a base end 18 and a free end 20. If a plurality of hairs are provided, the hairs may be secured together. For example, the base ends 18 of the strands 16 of hair 14 may be secured together, although the hairs may be secured together at a suitable point intermediate of the ends 18 and 20 of the hair 14, for example at or near the base end 18 and sometimes at or near the midpoint. Each strand 16 may have a suitable length 22, for example a length 22 of 2.5 centimeters or less, for example 2.0 centimeters of less.

[0034] Referring to FIGS. 1, 2, 3, and 4A-C, the plurality of human hairs 14 may be secured together in a suitable fashion. The base ends 18 of the plurality of human hairs 14 may be one or more of adhered together, sewn together, clipped together, tied together, or clipped together. Referring to FIGS. 1-3, for example, the base end 18 of the strands 16 of hair 14 may be secured together by being mounted to a base strip 24. The style shown in FIGS. 1-3 are more commonly purchased for individual home use by an end user, rather than professional application by a lash or brow artist. The hairs 14 may be secured via a fastening member, such as a collar. In some cases, plural hairs may be secured together using dual panels, which may be secured by adhesive, rivets or other fasteners (FIG. 4).

[0035] Referring to FIGS. 1, 2 and 4, the base strip 24 may have a suitable structure in order to secure the base ends 18 of the human hairs 14 to natural hairs of the user during application. The base strip 24 may comprise one or more of a tape-in connector (FIGS. 1-2), a clip-on connector, a micro or nano ring, or a weave connector. The free ends 20 may be oriented away from the base strip 24 to permit same to be freely manipulated, such as trimmed. Hair extension hairs can be fastened to a base strip using several techniques, each chosen based on desired durability, flexibility, and cost-effectiveness. Various methods include sewing, gluing, and injection molding. Sewing involves threading wefts of hair through the base strip with fine stitches, which provides a sturdy bond and natural movement but requires precision to ensure even distribution and minimize shedding. Gluing employs adhesives, like polyurethane or latex-based glues, to attach hair strands directly to the strip. This method is fast and often used in tape-in extensions; however, it may be less durable than sewing. Injection molding is a more advanced process where individual hairs are embedded directly into a thermoplastic or silicone base strip, creating a highly natural look with each strand emulating natural growth direction. This method allows for custom hair density and reduces shedding but is generally more costly due to specialized machinery and labor. Additionally, hand-tied wefts are popular for premium extensions, where hair is individually knotted to the strip by hand, offering a lightweight and flexible extension with superior comfort. Each method has its own benefits, chosen based on specific extension requirements and budget constraints.

[0036] Referring to FIGS. 1-3 and 4A-D, the hair extension 12 may be provided with suitable characteristics. Referring to FIGS. 1-3, examples are shown that are provided in segments. A segment may refer to a straight or curved base, with a plurality of human hairs distributed along the length of the base (base strip 24). The hairs themselves in the segment may have suitable features, such as being straight (FIG. 1), curled (FIG. 2), and fanned. As above, segments are typically used for hair extensions intended for home use, i.e. non-professional self-application. Referring to FIGS. 4A-C, a plurality of human hairs may also be provided in a fan-style. Various styles of this include a slip open base (FIG. 4A), and a closed base (FIGS. 4B-C). The style in FIG. 4B is referred to as an anime spike tower, where plural hairs have a closed base and differing lengths with the longest strands in the center of the extension. The style in FIG. 4C is referred to as a volume fan. Referring to FIG. 4D, the hair extension 12 may comprise a single human hair strand 16, for example provided on an adhesive strip in a tray for individual application. The examples shown in FIGS. 4A-D are more commonly purchased by professional lash and brow artists, requiring additional skills to apply than the home use equivalents, but providing more room for creativity and artistry in the process. Referring to FIGS. 5A-D, various types of human hairs may be used, such as straight hairs (FIG. 5A), semi-curled (FIG. 5B), curled (FIG. 5C), and very curled (FIG. 5D). Curl may be added to straighter hairs by heat or chemical treatment prior to sale to customers. The free ends of the one or more human hairs may be tapered or blunt.

[0037] An eyelash tray is designed to securely hold individual or strip lashes in an organized, hygienic, and accessible manner. Typically, the tray is molded from lightweight, durable plastic with precise contours to maintain the curl and shape of each lash. For individual lashes, the tray features rows with clearly labeled lengths and curls, allowing for efficient selection during application. Strip lashes rest in shallow grooves or recesses that mimic the natural curvature of the eye, preserving their shape and ensuring easy removal from the tray. Most trays include a protective, transparent lid or cover to prevent dust accumulation and maintain lash hygiene, while a slightly adhesive backing or gentle strip tape may be applied to secure lashes in place without compromising their structure. The overall design prioritizes lash preservation, ease of access, and safe storage for both at-home and professional use.

[0038] Referring to FIG. 5, the hair extension 12 may comprise a plurality of hair extensions 12 provided as part of a kit, for example a tray. The hair extension system 10 may comprise a tray 38, in which the plurality of hair extensions 12 are mounted in one or more rows along an inside surface 40 of the tray 38. The hair extensions 12 may be mounted to the inside surface 40 of the tray 38 in a suitable fashion, for example, the hair extensions 12 may be mounted to the inside surface via each base strip 24. The hair extensions 12 may be stored in the tray 38 prior to application and the tray 38 may protect the hair extensions 12 from damage. A protective cover 42 may be provided, such as a hinged cover as shown, with the cover 42 being structured to mate with or enclose the tray in order to secure the protective cover to the tray. A lock or latch (not shown) may be provided to open and close the cover over the tray. Adhesives, tape, latches, and other connection methods may be used to reversibly secure and release the cover from the tray. The tray and / or cover may comprise a base panel 44 / 45, and a peripheral side wall 46 as shown.

[0039] Referring to FIG. 6, the hair extensions 12 may be applied or secured to a user via a suitable fashion. The hair extensions 12 may be secured to the eyelash 28, a brow 30 or facial hair of the user. In an initial stage, the one or more of the plurality of human hairs 14 may be removed from the tray 38, if provided in tray or kit form. Before securing the one or more of the plurality of human hairs 14, the hairs 14 may be trimmed to a suitable length by a trimming device, such as scissors 32. Trimming of the hairs 14 may also be carried out once the hairs 14 have been secured to a user. Securing the hairs 14 to the user may comprise adhering, taping-in, clipping, sewing, or weaving the one or more of the plurality of human hairs 14 into the eyelash 28, a brow 30, or facial hair, of the user. The artist or user may apply the individual hairs, or segments / or groups of hairs in a suitable fashion, for example by securing same at or near the base of existing natural hairs of the end user. The hairs 14 may be manipulated by a suitable tool, for example tweezers 44.

[0040] For example, an adhering substance, such as glue, may be applied via a brush 36 to the base end 18 of the hair 14, and the hairs 14 may then be placed on the user. Various types of adhesives may be used, such as cyanoacrylate. Cyanoacrylate-based adhesives are commonly used in hair extensions due to their strong bonding properties, fast curing times, and durability. Cyanoacrylate adhesives function through a rapid polymerization reaction triggered by moisture in the air or on the hair itself, which forms a secure bond between the natural hair and the extension. These adhesives are typically formulated to minimize potential skin and scalp irritation, though sensitivity can vary among individuals. Primers are often applied before the adhesive to enhance bonding strength, improve durability, and ensure proper adhesion, especially in humid or oily conditions. Primers act by preparing the hair surface, removing residues or oils, and creating an ideal base for the adhesive to anchor to. Both adhesives and primers are sensitive to environmental factors, such as temperature and humidity, which can influence curing time and bond longevity. Careful application and maintenance are crucial to avoid hair damage and prolong the lifespan of the extensions.

[0041] The products disclosed here may be provided in suitable forms, such as in trays, or strips. Plural extensions may be connected together for application, for example if plural extensions are provided in strips, for example staggered along a strip in groups or individual extensions, or in a fan style (pre-made volume fans) where plural extensions originate in a cluster or segment from a single base that may be applied to a customer's lash or brow hair. The former of these products is typically but not always sold to do-it-yourself (DIY) customers, while the latter is more commonly but not always sold to professional hair extension artists. Hair extensions disclosed herein may be heated curled or permed into shape prior to sale to the customer. A suitable length of hair extension may be used, such as less than 2.5 cm, for example 2 cm or shorter in some cases. Hair extensions may be provided in segment or cluster form.

[0042] In the claims, the word “comprising” is used in its inclusive sense and does not exclude other elements being present. The indefinite articles “a” and “an” before a claim feature do not exclude more than one of the feature being present. Each one of the individual features described here may be used in one or more embodiments and is not, by virtue only of being described here, to be construed as essential to all embodiments as defined by the claims.

Examples

Embodiment Construction

[0018]Immaterial modifications may be made to the embodiments described here without departing from what is covered by the claims.

[0019]The beauty industry is a multifaceted sector encompassing skincare, haircare, cosmetics, fragrance, and personal care, producing innovations in product formulations and application technologies. False eyelashes and brows, for example, have seen advancements with the use of synthetic materials that mimic natural hair, as well as magnetic and adhesive-free application techniques that reduce skin irritation. Key advancements in the broader industry include biotechnology, such as bio-fermented ingredients, and nanotechnology, which enhances the effectiveness of active ingredient delivery. Personalized beauty is also a growing focus, with AI and machine learning enabling customized product recommendations based on skin type, genetics, and environmental factors. Additionally, the industry's shift towards sustainability has led to the development of eco-fr...

TECHNICAL FIELD

[0001] The present document relates to specialty eyelash and eyebrow extension systems created in specialty lengths under 2.5 cm made of human hair.BACKGROUND

[0002] The following paragraphs are not an admission that anything discussed in them is prior art or part of the knowledge of persons skilled in the art.

[0003] In the eyelash and hair brow extension industries, the dominant approach is to use artificial or synthetic extensions made of polybutylene terephthalate (PBT) material. Extensions are glued to a user's eyelashes or brow hairs, in order to add length, thickness, body, color, or other features, to the user's natural eye lashes or brow hairs.SUMMARY

[0004] Human hair has never been used in traditional lash and brow applications due to the complex nature of utilizing natural material which is finicky and difficult to produce. There are eyebrow extensions currently made of PBT material and also human hair (over 10 cm) but the author wishes to develop this technology of human hair extensions into widely accepted lash and brow application formats with natural hairs being developed into lengths under 2.5 cm.

[0005] A human hair extension system comprising: a hair extension, formed of one or more human hairs that are each formed of a strand with a base end and a free end, in which each strand has a length of 2.5 centimeters or less.

[0006] A hair extension comprising: one or more human hairs, each formed of a strand with a base end and a free end; and in which each strand has a length of 2.5 centimeters or less.

[0007] In various embodiments, there may be included any one or more of the following features: The one or more human hairs are a plurality of human hairs, secured together, for example with the base ends or mid-point (for example at an intermediate point between the base and free ends) secured together. The plurality of human hairs are one or more of adhered together, sewn together, clipped together, tied together, or clipped together. A base strip, in which the base ends or mid-point are secured together by being mounted to the base strip. The base strip comprises one or more of a sewn in thread or invisible band. The hair extension comprises a plurality of hair extensions. A trip, in which the plurality of hair extensions are mounted in one or more rows along an inside surface of tray. A protective cover secured over a peripheral edge of the tray and spanning an open end of the tray. The hair extension is secured to an eyelash, a brow, or facial hair, of a user. The free end of the one or more human hairs is tapered or blunt cut. A method comprising securing one or more human hairs of the hair extension of the hair extension system to an eyelash, a brow, or facial hair, of a user. An initial stage, removing the one or more human hairs from a tray. An initial stage, trimming one or more of the human hairs. Securing comprises securing the hair extension to the eyelash, brow, or facial hair of the user. Securing comprises adhering, taping-in, clipping, sewing, or weaving the one or more human hairs into the eyelash, a brow, or facial hair, of the user. The plurality of human hairs are one or more of adhered together, sewn together, clipped together, tied together, or clipped together. A base strip, in which the base ends are secured together by mounting to the base strip.

[0008] The foregoing summary is not intended to summarize each potential embodiment or every aspect of the subject matter of the present disclosure. These and other aspects of the device and method are set out in the claims.BRIEF DESCRIPTION OF THE FIGURES

[0009] Embodiments will now be described with reference to the figures, in which like reference characters denote like elements, by way of example, and in which:

[0010] FIG. 1 is a front-elevation view of a hair extension system, with the strands of hair attached to a backing member, and the strands being in a straight configuration.

[0011] FIG. 2 is a front-elevation view of a hair extension system, with the strands of hair attached to a backing member, and the strands being in a semi-curled configuration.

[0012] FIG. 3 is a front-elevation view of a hair extension system, with the strands of hair attached to a backing member, and the strands being in a curled configuration.

[0013] FIGS. 4 A-C are front-elevation views of embodiments of a hair extension system, with the strands of hair secured by a fastening member (such as adhesive), and arranged in a split open base fan (FIG. 3A), an anime spike tower (FIG. 3B), and a closed base fan (FIG. 3C).

[0014] FIG. 4D is a front-elevation view of a hair extension system, with a single strand of human hair.

[0015] FIG. 5 is a perspective view of a tray that houses multiple hair extension, with the hair extensions being secured to the tray via a backing member.

[0016] FIGS. 5A-5D are different configurations of the hair extension system, with single strands of hair, showing straight (FIG. 5A), semi-curled (FIG. 5B), curled (FIG. 5C), and extremely curled (FIG. 5D) configurations.

[0017] FIG. 6 is a perspective view of methods of applying hair extensions to a user's eyelashes and eyebrow.DETAILED DESCRIPTION

[0018] Immaterial modifications may be made to the embodiments described here without departing from what is covered by the claims.

[0019] The beauty industry is a multifaceted sector encompassing skincare, haircare, cosmetics, fragrance, and personal care, producing innovations in product formulations and application technologies. False eyelashes and brows, for example, have seen advancements with the use of synthetic materials that mimic natural hair, as well as magnetic and adhesive-free application techniques that reduce skin irritation. Key advancements in the broader industry include biotechnology, such as bio-fermented ingredients, and nanotechnology, which enhances the effectiveness of active ingredient delivery. Personalized beauty is also a growing focus, with AI and machine learning enabling customized product recommendations based on skin type, genetics, and environmental factors. Additionally, the industry's shift towards sustainability has led to the development of eco-friendly packaging and clean formulations, reducing synthetic chemical reliance and improving biodegradability. This focus on technology, personalization, and sustainability illustrates the industry's rapid evolution in response to consumer demand and environmental responsibility.

[0020] Hair extensions are versatile cosmetic enhancements used to add length, volume, and density to natural hair, eyelashes, eyebrows, or facial hair. They come in various types, including synthetic and natural human hair, to suit different needs and preferences. Scalp hair extensions are popular for transforming hairstyles and can be applied using methods like clip-ins, tape-ins, sew-ins, or keratin-bonded extensions, each designed to blend seamlessly with natural hair. Eyelash extensions, typically made from synthetic fibers, silk, or mink, are individually applied to natural lashes using medical-grade adhesive to create a fuller, longer lash line. Similarly, brow extensions are small, fine fibers that can be attached to existing brow hairs or directly onto the skin to enhance sparse or uneven brows. Facial hair extensions, though less common, may be used to enhance areas like beards or sideburns, offering a realistic solution for individuals with patchy facial hair growth. Each type of extension requires a specific application technique tailored to the area, hair type, and desired result, with proper maintenance ensuring longevity and comfort. This adaptability across various hair types and applications demonstrates the growing sophistication and customization available within the hair extension industry.

[0021] False eyelashes are a cosmetic enhancement designed to add length, volume, and definition to natural lashes. They come in various materials, including synthetic fibers, silk, and mink, each offering different aesthetic qualities and durability. Recent innovations in false eyelash design include the development of magnetic lashes, which use small, skin-safe magnets to attach to magnetic eyeliner, eliminating the need for traditional glue adhesives that can sometimes cause irritation. Additionally, eyelash extensions, a semi-permanent alternative, are applied individually with medical-grade adhesive, allowing for customization in length, thickness, and curl pattern. Advances in material science have led to the creation of lightweight, hypoallergenic lash fibers that mimic the texture and appearance of natural lashes while providing comfort and reducing potential skin sensitivity. The application process is also evolving, with DIY kits and precision tools enabling more user-friendly, professional-quality results. The industry's focus on innovative materials and improved application techniques has broadened the accessibility and appeal of false eyelashes across diverse consumer demographics.

[0022] Lash artists apply false eyelashes using a variety of techniques, depending on the client's desired look, the lash type, and the individual's natural lash health. The most common method is classic eyelash extensions, where individual synthetic, silk, or mink lash fibers are adhered to each natural lash using a medical-grade adhesive. For a fuller look, the volume technique is used, in which fans of multiple lightweight lash extensions are applied to each natural lash, creating a denser appearance. Hybrid lashes combine classic and volume techniques, blending single lashes with fans for a textured effect. Lash artists may also apply strip lashes, where a full band of lashes is attached along the natural lash line using temporary glue. Magnetic lashes are a more recent addition, utilizing magnetic particles in specialized eyeliners and lashes, which allow easy application without traditional adhesive. To ensure precision and safety, lash artists use fine tweezers, isolation tools, and magnifying lenses to separate natural lashes, preventing clumping and ensuring each extension adheres securely. Proper lash application relies on both technical skill and attention to detail, with customization based on eye shape, natural lash density, and client preferences.

[0023] Facial hair extensions are specialized cosmetic enhancements designed to add volume, length, and density to areas such as beards, mustaches, and sideburns for individuals with patchy or sparse facial hair growth. These extensions can be made from various materials, including synthetic fibers, and are typically available in a range of colors and textures to match the client's natural hair. The application process begins with a thorough consultation to assess the client's facial structure, desired style, and specific areas needing enhancement. After selecting suitable extensions, a facial hair artist meticulously applies them using a medical-grade adhesive or, in some cases, clip-in methods for easy removal and reapplication. The extensions are strategically placed to mimic natural hair growth patterns, ensuring a seamless blend with existing facial hair. Unlike traditional hair extensions, the application of facial hair extensions often requires more precision due to the smaller surface area and varied textures involved. The extensions can last from several days to a few weeks, depending on maintenance and aftercare, which involves keeping the area clean and avoiding excessive moisture or oil-based products. This technique not only enhances the aesthetic appearance of facial hair but also provides a temporary, non-invasive solution for those seeking fuller, more defined facial hair without permanent alterations.

[0024] An artist applies facial hair extensions through a meticulous process that enhances areas such as beards, mustaches, and sideburns for individuals with sparse or patchy growth. The application typically begins with a consultation to assess the client's desired style and the areas that need enhancement. The artist may choose between two primary methods: adhesive application or clip-in extensions. For adhesive application, the artist uses medical-grade adhesive to attach individual or small clusters of hair fibers directly to the skin or existing hair, ensuring a seamless blend with natural growth. This process involves precision, as the artist must mimic natural hair patterns to achieve a realistic look. In contrast, clip-in extensions can be used for temporary changes, allowing clients to add volume or length as desired without the permanence of adhesive applications. Compared to eyelash extensions, which are applied individually to each natural lash using fine tweezers and a precise technique to avoid clumping, or brow extensions, where fibers are placed strategically to follow the brow's natural arch, facial hair extensions require careful attention to the direction of hair growth and density to maintain a natural appearance. Additionally, facial hair extension applications can be more complex due to the diverse textures and lengths involved, while eyelash and brow applications often rely on uniformity in appearance. Despite these differences, all three techniques necessitate a high level of skill and artistry to ensure a natural and aesthetically pleasing outcome.

[0025] An artist applies hair extensions to the scalp through various techniques designed to add length, volume, and density to natural hair, catering to individual preferences and hair types. One common method is the tape-in technique, where pre-taped wefts of hair are applied by sandwiching sections of natural hair between two adhesive strips, providing a seamless blend and comfortable wear. Another popular approach is sew-in extensions, where wefts are attached to braids or a base created with the natural hair, utilizing a needle and thread to secure the extensions, ideal for thicker hair as it offers durability and versatility in styling. Keratin-bonded extensions involve applying small strands of hair that are fused to natural hair using a heated tool and keratin-based adhesive, ensuring a natural look and feel. Weaving, or the crochet method, uses a crochet hook to pull small sections of natural hair through braided cornrows, allowing for the attachment of loose wefts or pre-looped extensions, creating a fuller style without the need for adhesive. For a more comprehensive transformation, wigs can be applied, which cover the entire scalp and can be customized in color, length, and style. This method offers versatility and is suitable for individuals seeking a temporary or non-committal change. Unlike methods used for eyelash or brow extensions, which typically involve the application of individual fibers or clusters, scalp hair extensions require a broader approach to coverage and integration. Each technique necessitates careful consideration of the client's natural hair texture, color, and growth patterns to ensure a seamless blend and maintain a natural appearance. Proper installation and maintenance are crucial, as they determine the longevity of the extensions, with regular upkeep required to avoid tension on the natural hair and ensure overall hair health.

[0026] Brow extensions are a specialized cosmetic technique used to enhance eyebrow fullness, shape, and symmetry by attaching synthetic or natural fibers directly to existing brow hairs or the skin. This process is ideal for clients with sparse, asymmetrical, or over-plucked brows, offering a fuller, more structured look without permanent alteration. During application, a brow technician first assesses the client's facial structure and desired style, then maps out the optimal brow shape, creating a guideline for precise fiber placement. Individual fibers, matched in color and thickness to the client's natural brows, are adhered using a medical-grade adhesive applied with fine tweezers, either to existing hairs or directly onto the skin in areas with less density.

[0027] Brow extensions typically last between 7 and 14 days, depending on skin type, lifestyle, and adherence to aftercare practices, which include avoiding excessive moisture and oil-based products around the brow area. Compared to permanent techniques like microblading, brow extensions provide a temporary, non-invasive enhancement option, ideal for those seeking a natural-looking, flexible solution. This technique requires both precision and artistry, as it relies on meticulous fiber placement to mimic natural hair growth patterns and achieve a realistic, customized finish.

[0028] A brow artist attaches brow extensions using a meticulous process that combines precision, artistry, and specialized tools to achieve a natural-looking enhancement. First, the artist consults with the client to understand their desired brow shape, thickness, and density, then maps out the optimal brow structure to align with the client's facial features. After cleansing the brow area to remove oils and prepare the skin, the artist selects fibers that match the client's natural brow color and thickness. Using fine-tipped tweezers, individual brow fibers or small clusters are dipped in a skin-safe, medical-grade adhesive and carefully placed onto existing brow hairs or directly onto the skin in sparse areas. Unlike false eyelashes, which are typically applied in clusters or strips along the lash line, brow extensions require a more intricate technique of placing each fiber in the direction of natural hair growth, ensuring a realistic appearance. The artist must use steady hands and precise techniques to ensure each extension adheres properly without clumping or excessive adhesive, which can impact longevity. Once completed, the extensions create a fuller, well-defined brow line that typically lasts 7 to 14 days with proper aftercare, including avoiding moisture and oil-based products that may weaken the adhesive. This process requires both technical skill and aesthetic sense, similar to eyelash application, but emphasizes the subtle nuances of brow structure to achieve a balanced, natural result that enhances the client's facial symmetry.

[0029] Brow extensions are provided to brow artists in several forms to accommodate different application techniques and client needs. Typically, brow extensions come in pre-packaged kits that include individual brow fibers made from synthetic materials or natural human hair, available in various thicknesses, and colors to match diverse client hair types. These fibers are often sold in small bundles or strands, allowing artists to customize the look for each client based on their desired brow shape and density. Some suppliers offer adhesive kits alongside the fibers, consisting of skin-safe, medical-grade adhesives specifically formulated for brow applications, ensuring a secure bond while minimizing irritation. Strands are provided in lengths that require trimming to length. Additionally, brow extension kits may include tools such as fine-tipped tweezers for precise placement, adhesive applicators for controlled application, and brushes for blending and styling the fibers with natural brow hairs. To ensure quality and longevity, many manufacturers provide training materials or resources on best practices for application and aftercare, emphasizing the importance of proper installation techniques to achieve a natural look and maximize wear time. This comprehensive approach to supplying brow extensions enables artists to effectively enhance their clients'brows while maintaining high standards of safety and aesthetics.

[0030] False eyelashes and false eyebrows are manufactured from synthetic polymer fibers, with polybutylene terephthalate (PBT) being the predominant material due to its favorable balance of mechanical performance, processability, and cosmetic aesthetics. PBT is a semi-crystalline thermoplastic polyester that can be melt-extruded into continuous filaments with tightly controlled diameters, cross-sections, and surface finishes, enabling precise tailoring of fiber stiffness, curvature retention, and resilience. PBT fibers are engineered to be soft, strong, and hypoallergenic, offering a popular, cruelty-free alternative to animal hair, often marketed as “faux mink” or “faux silk” to describe their finish (matte / satin vs. glossy) and taper. Through controlled drawing, heat-setting, and cutting processes, PBT fibers can be produced with tapered tips, variable denier along their length, and consistent curl profiles that closely replicate the appearance and behavior of natural hair. These manufacturing controls allow suppliers to offer a wide range of lash and brow styles-including ultra-fine, lightweight fibers for natural looks and thicker, higher-modulus fibers for dramatic volume-while maintaining uniformity at scale. As a result of these material characteristics and processing capabilities, the lash and brow extension industry has expanded rapidly, as PBT-based fibers make it commercially feasible to deliver the high degree of variability, realism, durability, and repeatability demanded by professional and consumer markets.

[0031] Natural hair for use in the hair extension industry is typically sourced from various regions globally, with the highest quality hair often originating from countries like India, China, and Brazil. The sourcing process usually involves collecting hair from individuals, often through voluntary donations or purchases at temples, where donors may offer their hair as a religious or cultural practice. This hair is then carefully collected, sorted, and processed to remove impurities, including dirt and natural oils, ensuring it meets industry standards. Once cleaned, the hair is often sorted based on factors such as length, texture, and color, enabling manufacturers to provide a wide range of options to cater to diverse consumer needs. Natural hair is supplied to customers in various forms, including wefts, which are bundles of hair sewn together that can be applied using different techniques such as sew-in, tape-in, or glue-in methods. It can also be sold as single strands for keratin-bonded extensions or as bulk hair for weaving and braiding techniques. Additionally, natural hair is often available in pre-bonded or pre-tipped forms for quick application, allowing for greater flexibility in styling and installation. Some companies offer raw hair, which has not undergone extensive processing, allowing for a more natural look and feel, while others provide Remy hair, where the cuticles are aligned in the same direction to minimize tangling and enhance longevity. This variety in sourcing and product forms enables the hair extension industry to meet a wide array of consumer preferences and styling needs.

[0032] Dealing with natural hair for hair extensions presents several challenges that can impact the overall effectiveness and aesthetics of the application. One major difficulty is the variability in hair texture, density, and curl patterns among individuals, which requires careful matching to ensure a seamless blend with the client's natural hair. Additionally, the health and condition of natural hair play a crucial role; damaged or fine hair may not support heavy extensions, leading to tension or breakage. Maintaining the integrity of natural hair while integrating extensions necessitates skilled techniques and thorough assessments to prevent discomfort and ensure longevity. In contrast, the eyelash and brow extension industries have not widely adopted natural hair for several reasons. First, the delicate nature of natural lashes and brows makes them more prone to damage when using heavier, natural hair fibers, which could lead to breakage or irritation. Furthermore, synthetic materials can be engineered to replicate the look and feel of natural hair while offering greater durability and resistance to environmental factors, such as humidity and styling products. Synthetic hairs can be produced with tapered ends, and the author is not aware of a method that may achieve this result with human hair. Synthetic hairs are also non-porous and more resilient to chemical and soap exposure making them easy to work with. By contrast, human hairs are porous and flexible, making them difficult to work with. Synthetic hairs can also be heat treated or chemically to hold a curl long term, while a naturally straight hair will lose any induced curl over time. Synthetic hairs are also far less expensive than human hairs. Additionally, the standardization of synthetic fibers allows for more consistent results across various clients, simplifying the application process for lash and brow artists. As a result, while natural hair is favored in scalp hair extensions for its aesthetic appeal, the unique demands and requirements of eyelash and brow applications have led to a preference for synthetic alternatives.

[0033] Referring to FIGS. 1-6, a hair extension system 10 is disclosed. The hair extension system 10 comprises a hair extension 12. The hair extension 12 may be formed of one or more, for example a plurality, of human hairs 14, such as two, five, six, ten, hundreds, thousands, or more individual hairs. Each hair 14 may be formed of a strand 16 with a base end 18 and a free end 20. If a plurality of hairs are provided, the hairs may be secured together. For example, the base ends 18 of the strands 16 of hair 14 may be secured together, although the hairs may be secured together at a suitable point intermediate of the ends 18 and 20 of the hair 14, for example at or near the base end 18 and sometimes at or near the midpoint. Each strand 16 may have a suitable length 22, for example a length 22 of 2.5 centimeters or less, for example 2.0 centimeters of less.

[0034] Referring to FIGS. 1, 2, 3, and 4A-C, the plurality of human hairs 14 may be secured together in a suitable fashion. The base ends 18 of the plurality of human hairs 14 may be one or more of adhered together, sewn together, clipped together, tied together, or clipped together. Referring to FIGS. 1-3, for example, the base end 18 of the strands 16 of hair 14 may be secured together by being mounted to a base strip 24. The style shown in FIGS. 1-3 are more commonly purchased for individual home use by an end user, rather than professional application by a lash or brow artist. The hairs 14 may be secured via a fastening member, such as a collar. In some cases, plural hairs may be secured together using dual panels, which may be secured by adhesive, rivets or other fasteners (FIG. 4).

[0035] Referring to FIGS. 1, 2 and 4, the base strip 24 may have a suitable structure in order to secure the base ends 18 of the human hairs 14 to natural hairs of the user during application. The base strip 24 may comprise one or more of a tape-in connector (FIGS. 1-2), a clip-on connector, a micro or nano ring, or a weave connector. The free ends 20 may be oriented away from the base strip 24 to permit same to be freely manipulated, such as trimmed. Hair extension hairs can be fastened to a base strip using several techniques, each chosen based on desired durability, flexibility, and cost-effectiveness. Various methods include sewing, gluing, and injection molding. Sewing involves threading wefts of hair through the base strip with fine stitches, which provides a sturdy bond and natural movement but requires precision to ensure even distribution and minimize shedding. Gluing employs adhesives, like polyurethane or latex-based glues, to attach hair strands directly to the strip. This method is fast and often used in tape-in extensions; however, it may be less durable than sewing. Injection molding is a more advanced process where individual hairs are embedded directly into a thermoplastic or silicone base strip, creating a highly natural look with each strand emulating natural growth direction. This method allows for custom hair density and reduces shedding but is generally more costly due to specialized machinery and labor. Additionally, hand-tied wefts are popular for premium extensions, where hair is individually knotted to the strip by hand, offering a lightweight and flexible extension with superior comfort. Each method has its own benefits, chosen based on specific extension requirements and budget constraints.

[0036] Referring to FIGS. 1-3 and 4A-D, the hair extension 12 may be provided with suitable characteristics. Referring to FIGS. 1-3, examples are shown that are provided in segments. A segment may refer to a straight or curved base, with a plurality of human hairs distributed along the length of the base (base strip 24). The hairs themselves in the segment may have suitable features, such as being straight (FIG. 1), curled (FIG. 2), and fanned. As above, segments are typically used for hair extensions intended for home use, i.e. non-professional self-application. Referring to FIGS. 4A-C, a plurality of human hairs may also be provided in a fan-style. Various styles of this include a slip open base (FIG. 4A), and a closed base (FIGS. 4B-C). The style in FIG. 4B is referred to as an anime spike tower, where plural hairs have a closed base and differing lengths with the longest strands in the center of the extension. The style in FIG. 4C is referred to as a volume fan. Referring to FIG. 4D, the hair extension 12 may comprise a single human hair strand 16, for example provided on an adhesive strip in a tray for individual application. The examples shown in FIGS. 4A-D are more commonly purchased by professional lash and brow artists, requiring additional skills to apply than the home use equivalents, but providing more room for creativity and artistry in the process. Referring to FIGS. 5A-D, various types of human hairs may be used, such as straight hairs (FIG. 5A), semi-curled (FIG. 5B), curled (FIG. 5C), and very curled (FIG. 5D). Curl may be added to straighter hairs by heat or chemical treatment prior to sale to customers. The free ends of the one or more human hairs may be tapered or blunt.

[0037] An eyelash tray is designed to securely hold individual or strip lashes in an organized, hygienic, and accessible manner. Typically, the tray is molded from lightweight, durable plastic with precise contours to maintain the curl and shape of each lash. For individual lashes, the tray features rows with clearly labeled lengths and curls, allowing for efficient selection during application. Strip lashes rest in shallow grooves or recesses that mimic the natural curvature of the eye, preserving their shape and ensuring easy removal from the tray. Most trays include a protective, transparent lid or cover to prevent dust accumulation and maintain lash hygiene, while a slightly adhesive backing or gentle strip tape may be applied to secure lashes in place without compromising their structure. The overall design prioritizes lash preservation, ease of access, and safe storage for both at-home and professional use.

[0038] Referring to FIG. 5, the hair extension 12 may comprise a plurality of hair extensions 12 provided as part of a kit, for example a tray. The hair extension system 10 may comprise a tray 38, in which the plurality of hair extensions 12 are mounted in one or more rows along an inside surface 40 of the tray 38. The hair extensions 12 may be mounted to the inside surface 40 of the tray 38 in a suitable fashion, for example, the hair extensions 12 may be mounted to the inside surface via each base strip 24. The hair extensions 12 may be stored in the tray 38 prior to application and the tray 38 may protect the hair extensions 12 from damage. A protective cover 42 may be provided, such as a hinged cover as shown, with the cover 42 being structured to mate with or enclose the tray in order to secure the protective cover to the tray. A lock or latch (not shown) may be provided to open and close the cover over the tray. Adhesives, tape, latches, and other connection methods may be used to reversibly secure and release the cover from the tray. The tray and / or cover may comprise a base panel 44 / 45, and a peripheral side wall 46 as shown.

[0039] Referring to FIG. 6, the hair extensions 12 may be applied or secured to a user via a suitable fashion. The hair extensions 12 may be secured to the eyelash 28, a brow 30 or facial hair of the user. In an initial stage, the one or more of the plurality of human hairs 14 may be removed from the tray 38, if provided in tray or kit form. Before securing the one or more of the plurality of human hairs 14, the hairs 14 may be trimmed to a suitable length by a trimming device, such as scissors 32. Trimming of the hairs 14 may also be carried out once the hairs 14 have been secured to a user. Securing the hairs 14 to the user may comprise adhering, taping-in, clipping, sewing, or weaving the one or more of the plurality of human hairs 14 into the eyelash 28, a brow 30, or facial hair, of the user. The artist or user may apply the individual hairs, or segments / or groups of hairs in a suitable fashion, for example by securing same at or near the base of existing natural hairs of the end user. The hairs 14 may be manipulated by a suitable tool, for example tweezers 44.

[0040] For example, an adhering substance, such as glue, may be applied via a brush 36 to the base end 18 of the hair 14, and the hairs 14 may then be placed on the user. Various types of adhesives may be used, such as cyanoacrylate. Cyanoacrylate-based adhesives are commonly used in hair extensions due to their strong bonding properties, fast curing times, and durability. Cyanoacrylate adhesives function through a rapid polymerization reaction triggered by moisture in the air or on the hair itself, which forms a secure bond between the natural hair and the extension. These adhesives are typically formulated to minimize potential skin and scalp irritation, though sensitivity can vary among individuals. Primers are often applied before the adhesive to enhance bonding strength, improve durability, and ensure proper adhesion, especially in humid or oily conditions. Primers act by preparing the hair surface, removing residues or oils, and creating an ideal base for the adhesive to anchor to. Both adhesives and primers are sensitive to environmental factors, such as temperature and humidity, which can influence curing time and bond longevity. Careful application and maintenance are crucial to avoid hair damage and prolong the lifespan of the extensions.

[0041] The products disclosed here may be provided in suitable forms, such as in trays, or strips. Plural extensions may be connected together for application, for example if plural extensions are provided in strips, for example staggered along a strip in groups or individual extensions, or in a fan style (pre-made volume fans) where plural extensions originate in a cluster or segment from a single base that may be applied to a customer's lash or brow hair. The former of these products is typically but not always sold to do-it-yourself (DIY) customers, while the latter is more commonly but not always sold to professional hair extension artists. Hair extensions disclosed herein may be heated curled or permed into shape prior to sale to the customer. A suitable length of hair extension may be used, such as less than 2.5 cm, for example 2 cm or shorter in some cases. Hair extensions may be provided in segment or cluster form.

[0042] In the claims, the word “comprising” is used in its inclusive sense and does not exclude other elements being present. The indefinite articles “a” and “an” before a claim feature do not exclude more than one of the feature being present. Each one of the individual features described here may be used in one or more embodiments and is not, by virtue only of being described here, to be construed as essential to all embodiments as defined by the claims.

Examples

Embodiment Construction

[0018]Immaterial modifications may be made to the embodiments described here without departing from what is covered by the claims.

[0019]The beauty industry is a multifaceted sector encompassing skincare, haircare, cosmetics, fragrance, and personal care, producing innovations in product formulations and application technologies. False eyelashes and brows, for example, have seen advancements with the use of synthetic materials that mimic natural hair, as well as magnetic and adhesive-free application techniques that reduce skin irritation. Key advancements in the broader industry include biotechnology, such as bio-fermented ingredients, and nanotechnology, which enhances the effectiveness of active ingredient delivery. Personalized beauty is also a growing focus, with AI and machine learning enabling customized product recommendations based on skin type, genetics, and environmental factors. Additionally, the industry's shift towards sustainability has led to the development of eco-fr...

Claims

1. A hair extension system comprising:a hair extension, formed of one or more human hairs that are each formed of a strand with a base end and a free end;in which each strand has a length of 2.5 centimeters or less.

2. The hair extension system of claim 1 in which the one or more human hairs are a plurality of human hairs, secured together.

3. The hair extension of claim 2 in which the plurality of human hairs are one or more of adhered together, sewn together, clipped together, tied together, or clipped together.

4. The hair extension system of claim 2 further comprising a base strip, in which the base ends are secured together by being mounted to the base strip.

5. The hair extension of claim 4 in which the base strip comprises one or more of a tape-in connector, a clip-on connector, a micro or nano ring, or a weave connector.

6. The hair extension system of claim 1 in which the hair extension comprises a plurality of hair extensions.

7. The hair extension system of claim 6 further comprising a tray, in which the plurality of hair extensions are mounted in one or more rows along an inside surface of tray.

8. The hair extension system of claim 7 further comprising a protective cover secured over a peripheral edge of the tray and spanning an open end of the tray.

9. The hair extension system of claim 1 in which the hair extension is secured to an eyelash, a brow, or facial hair, of a user.

10. The hair extension system of claim 1 in which the free ends of the one or more human hairs are tapered or blunt cut.

11. A method comprising securing the one or more human hairs of the hair extension of the hair extension system of claim 1 to an eyelash, a brow, or facial hair, of a user.

12. The method of claim 11 further comprising, in an initial stage, removing the one or more of the human hairs from a tray.

13. The method of claim 11 further comprising, in an initial stage, trimming the one or more human hairs.

14. The method of claim 11 in which securing comprises securing the hair extension to the eyelash, brow, or facial hair of the user.

15. The method of claim 11 in which securing comprises adhering, taping-in, clipping, sewing, or weaving the one or more human hairs into the eyelash, a brow, or facial hair, of the user.

16. A hair extension comprising:one or more human hairs, each formed of a strand with a base end and a free end; andin which each strand has a length of 2.5 centimeters or less.

17. The hair extension of claim 16 in which the one or more human hairs are a plurality of human hairs, secured together.

18. The hair extension of claim 17 in which the plurality of human hairs are one or more of adhered together, sewn together, clipped together, tied together, or clipped together.

19. The hair extension of claim 17 further comprising a base strip, secured together by mounting to the base strip.

20. The hair extension of claim 16 in which the free ends of the one or more human hairs are tapered or blunt cut.

Images