JPH0526047U - Biodegradable litter - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to obtain bunches that do not generate harmful components and spontaneously decompose and disappear when left in the soil. [Composition] Composition of non-woven fiber mat formed of at least one kind of cellulosic fiber such as plant fiber, regenerated fiber, semi-synthetic fiber, etc. Composite of fine cellulose and chitosan salt containing abrasive particles on the fiber surface and cross-contact part It is characterized by being bonded and fixed with.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a household bundle used in tableware, cooking utensils, kitchen equipment and the like.

[0002]

[Prior Art]

 Conventionally, household bunches have been attached with turtle bunches bundled with palm hair, steel wool bunches, cellulose sponges, soft urethane foam sponges, etc., and non-woven nylon bunches with abrasive grains such as white aluminum oxide, garnet emery and silica. Combined laminated bundles are commonly used.

However, among these used bundles at home, steel wool bundles are incinerated in public incinerators as non-burnable refuse, and others are burned like ordinary refuse. However, with the exception of palm turkey bundles that use palm and cellulose sponge, bundles that use chemically synthesized resin have a high combustion temperature during incineration, which damages the incinerator and produces harmful components such as chlorine and dioxins in the exhaust gas. It has become a social problem. Even if it is buried in the soil, it is not biodegradable, so it has the disadvantage that it remains in the soil semipermanently.

[0004]

[Problems to be solved by the device]

 The problem to be solved is to obtain a naturally decomposable household bundle that releases harmful components from incineration and damages the incinerator.

[0005]

[Means for Solving the Problems]

 In order to solve the above problems, in the present invention, hemp fibers such as sisal and abaca, which are biodegradable in the material constituting the litter, plant fibers such as palm, regenerated fibers such as rayon and cupula, and semi-synthetic materials. A bulky fiber mat in which a fiber web containing at least one kind of fiber or the like is preliminarily fixed, or a non-woven fiber mat in which a fiber entanglement is formed by needle punching the fiber web, white aluminum oxide, garnet, silas balloon, silica Cross-contact of constituent fibers with a fine fiber cellulose containing chitosan salt as a main component, and finely divided cellulose mixed with an inorganic abrasive such as a metal abrasive such as powder of aluminum, ferrite, iron, etc. By forming an adhesive-fixing composite of parts and fiber surfaces to form a bundle, we have realized a household biodegradable bundle that can be decomposed and destroyed simply by burying it in the soil by disposal.

[0006]

[Work]

 By adopting the above configuration, the bundle of the present invention exhibits biodegradability and uses the cellulose-based fibers and the binder of the material as the basis of the configuration, so that the product by the minute product at the time of degradation is produced. Will completely decompose and disappear in a short period of 1 to 2 months without adversely affecting the environment in the soil. Even if it is incinerated, it does not burn at high temperature and no harmful gas is generated.

Hereinafter, a configuration of an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a biodegradable bundle that shows an embodiment of the present invention. As the skeleton of the fiber mat constituting the bundle of the present invention, hemp fibers such as sisal and abaca or cellulosic plant fibers 1 such as palm are used alone or in combination, and the fiber diameter is 30 μm to 30 μm. If it is less than 30 μ, preferably less than 30 μ, and if it exceeds 100 μ, conversely the softness is lost. In addition, a cellulosic regenerated or semi-synthetic fiber is also used by mixing with the plant fiber. 2 represents rayon fiber, and the content thereof is preferably 20% or less, and when it exceeds 20%, the drainage property as a bundle becomes poor.

The fiber web configured as described above is subjected to needle punching (for example, 100 PZcm ² ), and the non-woven fiber mat 4 having the entangled portions 3 in which the fibers are entangled with each other is configured. This non-woven fiber mat is mixed with finely divided cellulose particles such as white aluminum oxide, garnet, silica, shirasu balloon or other inorganic abrasives, or abrasives selected from metal abrasives such as aluminum, ferrite and iron. Chitosan salt is bonded and fixed with a binder as a main component, and the part where the constituent fibers of the fiber mat cross-contact each other and the fiber surface are bonded or coated and fixed by the composite of fine cellulose-chitosan 5 and the abrasive particles 6 Is also fixed to the fiber surface by chitosan and forms the biodegradable bundle of the present invention.

A chemical bond is formed between the chitosan salt and the fine cellulose or cellulosic fiber during drying and heating, and a chemical bond is generated between the amino group of chitosan and the CO or OH group of the fine cellulose or cellulose fiber. To become insoluble in water and firmly bond. As the binder, lactic acid, acetic acid, and the like are added in the same weight as chitosan, and water is added to a predetermined concentration (for example, 1%) to obtain a chitosan salt aqueous solution and a fine cellulose aqueous solution, each having a solid content ratio of 20:80 to 30. : 70 (parts by weight), and 80 to 100 parts of an abrasive was mixed therein to obtain a fiber binder.

If the mixing ratio of the chitosan salt and the fine cellulose is outside the above range, the water resistance strength is lowered and the strength as a bundle is insufficient. Further, if the amount of the abrasive mixed in exceeds 100 parts, the adhesive strength due to the binder will decrease and the abrasive particles will fall off, which is not preferable, and if it is less than 80 parts, the function of the scrubbing ability by the bundle will deteriorate. So it's not appropriate.

[0011]

【Example】

Sisal (fiber diameter 40~60μ) 90g / ^{m 2} and a rayon fiber 2d × 51 mm10g / ^{m 2} and cotton mixing, subjected to needle punching treatment at a land Webber end count randomly web formed by machine 100P / cm ^2, Form an entangled fiber mat in which the fibers are entangled with each other. To the above fiber mat, 100 parts of white aluminum oxide was mixed with a mixed resin of 30 parts of chitosan salt and 70 parts (parts by weight) of fine cellulose to form a binder, and the binder solution was spread on a both sides of 20 g each. / M ² (solid amount) was sprayed and adhered, and a fine cellulose-chitosan composite was formed by drying and heating to obtain 140 g / m ² of biodegradable bundle. The binder was applied by spraying, but it may be applied by dipping or coating.

[0012]

[Comparative example]

A random web having a basis weight of 100 g / m ² was formed using only sisal as the web-constituting fiber, and bundle A was constructed in the same manner as in the following examples. Sisal 70 g / m ² and rayon fiber 30 g / m ² were used to form a web having a basis weight of 100 g / m ^{2, and} a bundle B was constructed in the same manner as in the following examples. Using the same non-woven fiber mat as in the example, 100 parts of white aluminum oxide was mixed with a mixed resin solution of 10 parts of chitosan salt and 90 parts of fine cellulose (parts by weight) to prepare a binder. Bundle C was formed. Further, the same non-woven fiber mat as in the example was used, and a binder obtained by mixing 100 parts of white aluminum oxide with a mixed resin of 40 parts of chitosan salt and 60 parts of fine cellulose was used as a fiber binder. To form a bundle D. Table 1 shows the properties of the biodegradable bundles obtained in the above Examples and Comparative Examples.

[0013]

[Table 1]

Further, when the litter pieces of the above Examples and Comparative Examples were embedded in a planter containing a mixed soil of commercially available culture soil and microbial fertilizer (Sumirin Yukiderma manufactured by Sumitomo Forestry), it was completely completed in about 1 month. Decomposed and disappeared.

[0015]

[Effect of the device]

 The present invention uses at least one cellulosic fiber such as hemp fiber and rayon fiber as the skeleton fiber of the non-woven fiber mat that constitutes the bundle, and uses the mixed resin liquid of chitosan salt and fine cellulose as the binder to form the soil. Biodegradation is promoted by the microorganisms inside and completely decomposes and disappears. Therefore, there is no need to incinerate in an incinerator, and the incinerator is free from damage and emission of harmful gas. In addition, since it is formed of cellulose fibers and natural polysaccharides by using an abrasive, it has practical effects such as being able to be used for washing dishes with peace of mind.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of implementation of the present invention.

FIG. 2 is an enlarged view of part A of FIG.

[Explanation of symbols]

 1 Plant Fiber 2 Rayon Fiber 3 Entangled Part 4 Nonwoven Fiber Mat 5 Fine Cellulose-Chitosan 6 Abrasive Particles

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Takamasa Kubo Inventor Takamasa City, Kagawa Prefecture 2-3-3 Hananomiyacho, Shikoku Institute of Industrial Technology Institute of Industrial Technology (72) One year Yoshihara Hana, Takamatsu City, Kagawa Prefecture 2-3-3 Miyamachi, Shikoku Institute of Industrial Technology, Institute of Industrial Technology (72) Inventor Mutsuo Nakagawa 1-215-15 Mefu, Takarazuka-shi, Hyogo (72) Teruhiro Komatsu Mukotoyo-cho, Amagasaki-shi, Hyogo 2-chome 50-306 (72) Inventor Mimura Shozo 4-46-8, Ogino, Itami City, Hyogo Prefecture

Claims (1)

[Scope of utility model registration request] 1. A fine cellulose-chitosan composite containing abrasive particles on the constituent fiber surface and cross-contact portion of a non-woven fiber mat formed of at least one kind of cellulosic fiber such as plant fiber, regenerated fiber and semi-synthetic fiber. A biodegradable bundle that is glued and fixed with an object.