Hemp product and method for producing hemp product

Abstract

To provide a hemp product in which hemp fiber easy to maintain a shape more than ever, a hemp product using the hemp fiber, and a method for producing hemp fiber and hemp product.SOLUTION: Hemp products are made using hemp fibers. Hemp fibers include layered sheet-like hemp cotton. Hemp cotton is used in futons, cushions, and other items. A gelatin layer is coated around the hemp fibers. The gelatin layer may cover the entire circumference of the hemp fibers or only a part of it. By preparing a gelatin solution, immersing the linen top in the solution, and performing dehydration, drying, and opening, gelatin is applied to the hemp fibers. This allows the provision of hemp products using hemp fibers in a way that was not possible before.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to hemp fibers containing hemp, a method for producing the hemp fibers, and hemp products using the hemp fibers. [Background technology]

[0002] The following Patent Document 1 discloses hemp cotton using ramie top. It describes that ramie top is treated with alkali to give it a crimped shape, thereby producing hemp cotton.

[0003] There have been linen cotton products using ramie tops in the past, and the product in Patent Document 1 is considered to be one such product. For example, linen cotton products using linen tops are too flexible and do not easily maintain their shape. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2010-189800 Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to provide hemp fibers that are easier to maintain their shape than conventional fibers, a method for producing the hemp fibers, and hemp products using the hemp fibers. [Means for solving the problem]

[0006] The hemp fiber of the present invention comprises a fiber made of hemp and a gelatin layer coated on the outer periphery of the fiber. The hemp product comprises the hemp fiber.

[0007] The method for producing hemp fibers of the present invention includes the steps of preparing a fiber mass made of hemp and coating the fibers with a gelatin layer containing gelatin as the main component. [Effects of the Invention]

[0008] The present invention provides hemp fibers and hemp products using the same, which have unprecedented elasticity due to a gelatin layer primarily composed of gelatin. The elasticity of the gelatin layer makes it easier for hemp products to maintain their shape. Furthermore, by utilizing a gelatin layer made from natural ingredients, the hemp fibers can be returned to nature even after disposal, resulting in hemp fibers and hemp products with reduced environmental impact. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view showing a partial cross section and side of the hemp fiber of the present invention. FIG. [Figure 2] 1 is a flowchart showing a method for producing hemp cotton of the present invention. [Figure 3] FIG. 2 is a diagram illustrating an example of a main part of the structure of a fiber spreader. DETAILED DESCRIPTION OF THE INVENTION

[0010] The hemp fiber of the present application, the method for producing the hemp fiber, and the hemp products using the hemp fiber will be described with reference to the drawings.

[0011] [Embodiment 1] The hemp fiber 10 of the present invention comprises a fiber 12 made of hemp and a gelatin layer 14 coated around the hemp fiber (Fig. 1). The hemp product of the present invention is produced using the hemp fiber 10. The hemp fiber 10 includes those produced using linen (flax) as the raw material. The hemp product includes hemp cotton used for futons, cushions, etc.

[0012] The fiber length of the fibers 12 is preferably 30 to 100 mm, and more preferably 50 to 90 mm. If the fiber length is longer than this, the fibers 12 will become excessively entangled with each other, making it difficult to produce hemp cotton. If the fiber length is shorter than this, the fibers 12 will not easily become entangled with each other, making it difficult to produce cotton from the hemp fibers 10.

[0013] A gelatin layer (coating layer) 14, whose main component is gelatin, is formed around the fibers 12. While glue is used as the gelatin in this description, edible or medicinal gelatin may also be used. Glue that can be used includes magatama glue, pigskin glue, fish glue, rice glue, animal glue, etc. The type of glue is not important as long as it adheres to the periphery of the fibers 12.

[0014] Furthermore, if the gelatin layer 14 is too thick, the texture of the linen fibers 10 will be impaired, so the thickness of the gelatin layer 14 is made smaller than the cross-sectional diameter of the fibers 12. For example, the thickness of the gelatin layer 14 is about 1 / 10 to 10,000 times the cross-sectional diameter of the fibers 12.

[0015] Linen is more flexible than ramie and hemp. Therefore, when linen is made into linen cotton, it becomes thin as if it has been crushed. By attaching glue around the fibers 12, the elasticity of the fibers 12 increases compared to when there is no glue. The linen cotton shape is more easily maintained.

[0016] The gelatin layer 14 may be formed over the entire outer periphery of the fiber 12, or may be formed only on a part of it. For example, the gelatin layer 14 is formed over 30 to 100%, preferably 50 to 100%, of the entire surface of the fiber 12. The gelatin layer 14 is transparent or translucent and does not spoil the appearance of the linen fiber 10.

[0017] The gelatin layer 14 may be formed uniformly or irregularly. If the gelatin layer 14 is attached irregularly, when the hemp fiber 10 becomes cotton, the rigidity of the hemp fiber 10 will differ between the parts with the gelatin layer 14 and the parts without it. The parts with the gelatin layer 14 are less likely to deform, while the parts without the gelatin layer 14 are more likely to deform. The parts without the gelatin layer 14 bend, making it easier for the hemp fibers 10 to become entangled with each other. Also, if the fiber 12 is bent when the gelatin layer 14 is attached to it, the shape will be maintained. The hemp fibers 10 will become more likely to become entangled with each other at the bent parts.

[0018] The thickness of the gelatin layer 14 may be uniform or non-uniform. Thicker portions are less likely to deform, while thinner portions are more likely to deform. As with the above, differences in layer thickness can make it easier for the hemp fibers 10 to entangle with each other.

[0019] The melting point of the glue that makes up the gelatin layer 14 is approximately 50 to 60°C, so if you wash it in water that is below the melting point, the glue will melt and not easily run away. This keeps the gelatin layer 14 coated on the surface of the fiber 12, and helps the hemp fiber 10 maintain its shape.

[0020] As shown in Figure 1, hemp fiber 10 has a gelatin layer 14 attached to the surface of fiber 12 containing hemp, but the gelatin layer 14 only needs to be attached to at least the surface of fiber 12. Furthermore, gelatin layer 14 may penetrate into fiber 12. For example, gelatin layer 14 may be attached between multiple bast fibers 16 that make up fiber 12, or glue may penetrate into hollow portions (lumens) 18 inside bast fibers 16.

[0021] The hemp fibers 10 may be made into a sheet-like hemp cotton, and a plurality of such sheets may be laminated. The hemp cotton may be used as filling for futons, cushions, etc., and may be used as hemp products.

[0022] Next, the method for producing hemp products of the present invention will be described with reference to Figure 2. Hemp products including linen will be described.

[0023] (1) A linen top, which is an aggregate of fibers 12, is prepared (S1). To manufacture the linen top, first, flax stalks are soaked in water and then dried. Impurities such as wood are removed from the dried flax stalks to extract fibers. These fibers are then drawn into the linen top.

[0024] (2) The surface of the fibers 12 in the linen top is coated with a gelatin layer 14 (S2). A solution or liquid containing gelatin as its main component may be prepared, and the linen top may be immersed in the solution to coat the fibers 12 with the gelatin layer 14. The gelatin-based solution is a liquid made from glue, a solvent, and water. The solvent may be ethanol, methanol, alcohol, or the like.

[0025] Instead of the above solution, a liquid obtained by melting glue at a high temperature may be used. For example, glue can be dissolved by boiling it in hot water at about 70-80°C. The melting point of glue is about 50-60°C, and if it is heated too high, the adhesive strength will decrease, so it is preferable to keep the glue temperature below about 80°C.

[0026] (3) The linen tops soaked in the above solution or liquid are dehydrated (de-liquidated) and dried (S3). After soaking, the linen tops can be dehydrated by centrifugal separation in a dehydrator or by squeezing. The dehydrated linen tops can be dried in a dryer or left to dry naturally.

[0027] (4) The dried linen top is cut to a predetermined length (S4), for example, 40 to 100 mm.

[0028] (5) The cut linen top is opened (S5). For example, the opener 20 comprises a drum 22, a plurality of protrusions 24 such as needles or blades attached to the drum 22, and a cover 26 for these (Fig. 3). The drum 22 is rotated, and the linen top is passed between the drum 22 and the cover 26, where it is brought into contact with the protrusions 24, combed, and opened. The bundled fibers 12 are broken down and loosened into a cotton-like state. As the fibers 12 are cut into tops as described above, cotton of a relatively uniform length can be formed. An endless belt may be used instead of the drum 22. Multiple drums 22 may be provided.

[0029] (6) The cotton-like hemp fibers 10 are formed into sheets and stacked to form hemp cotton (S6). The stacked hemp cotton may be needle-punched. This makes it easier for the hemp fibers 10 to maintain their entangled state.

[0030] The produced linen cotton may be used as filling for futons, cushions, etc. If the covers of the futons, cushions, etc. are made of linen, the futons, cushions, etc. will use linen inside and out.

[0031] As described above, the present invention forms a gelatin layer 14 on the hemp fibers, resulting in cotton with unprecedented elasticity. Conventionally, even when cotton is made from ramie, it has been difficult to maintain its shape over long periods of use, but the present invention makes it easier for the cotton to maintain its shape over long periods of use. Because linen hemp products are made using only natural materials, they are more likely to return to nature even after disposal, making them a sustainable product.

[0032] [Embodiment 2] In addition to linen, linen products may contain fibers made from other grasses, such as ramie and hemp. For example, the linen content of the entire fiber is preferably 30 to 100%, and more preferably 90 to 100%. Ramie and hemp fibers may be coated with glue or may not be coated. Ramie and hemp may be crimped by alkali treatment, or may be coated with glue in the same manner as linen, and then opened and ripped using the method described above to impart crimp.

[0033] In Japan, linen, ramie, and hemp are also considered to be hemp. The present invention may also be applied to hemp fibers made from fibers other than linen, such as ramie and hemp. A gelatin layer may be formed around these fibers. The present invention may also be applied to fibers in which a gelatin layer is formed around various fibers, and the provision of a gelatin layer results in fibers with different elasticity and other properties than conventional fibers.

[0034] Furthermore, fibers other than hemp, such as cotton, may be provided with a gelatin layer, and such fibers may be used either mixed with the above-mentioned fibers or unmixed.

[0035] [Embodiment 4] Before applying glue to the linen, the linen top may be subjected to an alkali treatment using caustic soda or the like. This treatment may be applied to only a portion of the linen top, rather than all of the linen top. The alkali-treated linen top will crimp and develop crimps. It is preferable to use an alkali treatment solution with a lower Baume degree than that of the prior art disclosed in Patent Document 1 (Baume degree 32-34 degrees). For example, the Baume degree of the alkali treatment solution is 10-20 degrees, preferably 15-18 degrees. By lowering the concentration of the alkali treatment solution, deterioration of the linen top can be reduced. The alkali-treated linen should preferably account for 0-50% of the total, more preferably 0-10%.

[0036] [Embodiment 5] Hemp cotton may be made into slivers by carding, and the slivers may be further processed into a desired thickness by drawing or gilling, and finally made into a desired yarn by roving and fine spinning. The resulting yarn has glue attached to the surface of the fibers. It is preferable that at least about 20% of the yarn is the fiber 12 of the present invention. The produced yarn can be used for hemp products such as linen cloth. The present application relates to fibers that are used as raw materials for various hemp products, with glue attached to at least a portion of the fibers.

[0037] The linen product of the present invention may be a cloth. Preferably, 10% or more of the threads constituting the cloth contain the linen product of the present invention. The linen product of the present invention may also be contained in linen products such as clothing.

[0038] [Embodiment 6] The fiber aggregate used in the above embodiment is not limited to a top. For example, the fiber aggregate may be a fiber mass. The fiber mass may be immersed in a glue solution to form a coating layer 14 on the fibers 12. The fiber aggregate may then be dehydrated (de-liquidated), dried, and opened.

[0039] [Example] A linen top made from flax was prepared, and the linen top was immersed in a glue solution to adhere the glue around the fibers. Three linen tops were prepared and each was subjected to the same procedure.

[0040] The glue solution was prepared by adjusting powder glue, solvent, and water. Water was added separately when dissolving the powder glue and after dissolving. The solvent contained ethanol, methanol, and normal propyl alcohol. The amount of ethanol was adjusted to approximately 84.5-86.5g, methanol less than approximately 5.0g, and normal propyl alcohol approximately 9.1-10.1g, so that the solvent was 100g. First, 1060g of powder glue, 424g of solvent, and 10.6kg of water were prepared and mixed to produce 12.084kg of powder glue solution. This solution was divided into three parts as shown in Table 1, and water was added to each part to produce the treatment solution.

[0041] [Table 1]

[0042] The processing conditions when the linen top was immersed in the processing solution in Table 1, dehydrated and dried are shown in Table 2. All of the processing solutions in Table 1 were used in each processing.

[0043] [Table 2]

[0044] The glue had adhered to the surface of the hemp fibers that made up the linen top, making it harder than the linen top before the glue was applied.The linen top also had elasticity.

[0045] The linen top with the glue attached was cut into lengths of about 50-100 mm, then separated into individual fibers using a fiber opener. The individual fibers were then caded into sheets, which were then layered to make hemp cotton.

[0046] Conventional linen cotton is too soft and tends to be crushed, making it difficult to use, but the linen cotton produced by the manufacturing method of the present invention is more elastic than conventional linen cotton and has good recovery from compression. The present invention has made it possible to produce linen cotton with different softness and elasticity than conventional linen cotton.

[0047] Furthermore, the present invention can be implemented in various forms with various improvements, modifications, and changes made based on the knowledge of those skilled in the art without departing from the spirit of the present invention. [Explanation of symbols]

[0048] 10: Hemp fiber 12: Fibers containing hemp 14: Gelatin layer (glue) 16: Basin fiber 18: Hollow section (lumen) 20: Spreading machine 22: Drums 24: Protrusion 26: Cover

Claims

1. Fibers made of hemp; a gelatin layer coated on the outer periphery of the fiber; Hemp fiber containing.

2. 2. The hemp fiber of claim 1, wherein said gelatin layer comprises glue.

3. A linen product using the linen fiber of claim 1 or 2.

4. 4. The linen product of claim 3, wherein the linen product is linen cotton.

5. providing fibers comprising hemp; coating the fibers with a gelatin layer containing gelatin as a main component; A method for producing hemp fiber, comprising:

6. The method for producing hemp fiber according to claim 5, wherein the coating step includes a step of immersing the fiber assembly in a solution or liquid containing gelatin as a main component.

7. dewatering and drying the soaked fiber mass; Opening the dehydrated and dried fiber assembly; The method for producing hemp fiber according to claim 6, comprising:

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