JP3399683B2 - Method of manufacturing bark chips - Google Patents

Method of manufacturing bark chips

Info

Publication number
JP3399683B2
JP3399683B2 JP02721695A JP2721695A JP3399683B2 JP 3399683 B2 JP3399683 B2 JP 3399683B2 JP 02721695 A JP02721695 A JP 02721695A JP 2721695 A JP2721695 A JP 2721695A JP 3399683 B2 JP3399683 B2 JP 3399683B2
Authority
JP
Japan
Prior art keywords
bark
chips
bark chips
copper
manufacturing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP02721695A
Other languages
Japanese (ja)
Other versions
JPH08197508A (en
Inventor
敬三 山路
武司 山下
公喜 武田
実苗 馬場
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kohjin Holdings Co Ltd
Original Assignee
Kohjin Holdings Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kohjin Holdings Co Ltd filed Critical Kohjin Holdings Co Ltd
Priority to JP02721695A priority Critical patent/JP3399683B2/en
Publication of JPH08197508A publication Critical patent/JPH08197508A/en
Application granted granted Critical
Publication of JP3399683B2 publication Critical patent/JP3399683B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Cultivation Of Plants (AREA)

Description

【発明の詳細な説明】 【0001】 【産業上の利用分野】本発明は、装飾・鑑賞用に用いる
植木鉢等の充填物として使用される、優れた消臭機能を
有する装飾・鑑賞用の樹皮チップの製造方法に関する。 【0002】 【従来の技術】従来、樹皮は特別な処理が施されること
もなくそのまま家畜舎等の脱臭材として用いられてき
た。これは、樹皮中に含まれるタンニン類と悪臭成分の
一つであるアンモニアが反応して無臭物質に変化するこ
とを利用したものである。しかしながら、樹皮はアンモ
ニアに対しては優れた消臭効果を有するものの、代表的
な他の悪臭成分である硫化水素等に対しては消臭効果を
有していない。近年、樹皮を適当な大きさのチップ状と
して、これを植木や人工樹木の鉢の土の上に並べて装飾
・鑑賞用として利用することが盛んになり、この樹皮に
フタロシアニン系の消臭機能を有する化合物を担持させ
た、消臭機能を兼ね備えた樹皮チップが報告されてい
る。しかしながらこれらの樹皮チップは、樹皮表面に該
消臭機能を有する化合物が固定化され難いため多量に担
持させることは困難であり、担持量が微量であるため特
に硫化水素類に対しては消臭効果が劣るという欠点があ
った。 【0003】 【発明が解決しようとする課題】消臭材の硫化水素等に
対する消臭効果を向上させる方法としては、遷移金属化
合物、特に銅化合物のコロイドを担持させる方法、ある
いは銅カルボキシメチルセルロースをパルプ等に混合す
る方法が一般的であり、該方法による消臭紙あるいは消
臭不織布が報告されている。しかしながら該方法による
と、パルプ等の繊維状物質には極めて有効であるもの
の、樹皮についてはその表面特性等のため、銅化合物が
担持され難いこと、及び樹皮成分と銅イオンが反応して
樹皮表面が黒色化する等の欠点を有していた。 【0004】 【課題を解決するための手段】本発明者らは、かかる課
題を解決するため鋭意研究の結果、樹皮チップ表面を透
明性を有するカルボキシメチルセルロ−ス溶液の膜で覆
い、次いで、このカルボキシメチルセルロ−ス膜と銅イ
オンを反応せしめることにより、樹皮チップに優れた消
臭性と耐久性および装飾性を付与できることを見いだ
し、本発明を完成するにいたった。すなわち本発明は、
樹皮チップにカルボキシメチルセルロースを塗布または
含浸した後銅イオンと反応させる、樹皮チップの製造方
法を提供するものである。 【0005】以下、本発明を詳細に説明する。本発明で
使用される樹皮チップとしては、針葉樹、広葉樹いずれ
でもよいが、針葉樹が好ましく、例えばアカマツ、クロ
マツ、ベイマツ等を挙げることができる。 【0006】樹皮チップは、カルボキシメチルセルロー
スを塗布・含浸させた後、銅イオンと反応させる。カル
ボキシメチルセルロースの塗布・含浸は、樹皮チップを
カルボキシメチルセルロース水溶液に浸漬することによ
り実施される。使用されるカルボキシメチルセルロース
は、水に可溶性のDS=0.4〜0.6程度のものが好
ましい。濃度は0.5〜3%程度が好ましく、室温で1
〜30分程度浸漬すれば十分である。 【0007】次いで銅イオンとの反応は、カルボキシメ
チルセルロースを塗布・含浸した樹皮チップを、銅イオ
ン水溶液で処理することにより実施される。使用される
銅イオン水溶液としては、酢酸銅、硫酸銅等の水溶液を
挙げることができ、室温で5〜30分程度反応すれば十
分である。反応後、熱風で乾燥することにより樹皮チッ
プが得られるが、銅カルボキシメチルセルロース被膜を
安定化させるため、銅イオンと反応後、希アルカリ、例
えば希カセイソーダ溶液で処理した後、熱風で乾燥し、
樹皮チップとすることもできる。 【0008】 【実施例】以下実施例を挙げ、本発明を更に詳細に説明
する。 実施例1 樹皮チップ(北米産ベイマツ樹皮チップ、商品名インテ
リアバーク)1kgを、25〜30℃の1.5%カルボ
キシメチルセルロ−ス(DS=0.5)水溶液30Lに
10分間浸漬し、カルボキシメチルセルロ−スを含浸さ
せた。含浸樹皮チップを25〜30℃の3%酢酸銅水溶
液30L中に移し、10分間静かに撹拌して樹皮チップ
表面に銅カルボキシメチルセルロ−スの被膜を形成させ
た。次いで該チップを25〜30℃の0.005N水酸
化ナトリウム水溶液25L中に移し、10分間放置して
銅カルボキシメチルセルロ−ス被膜を安定化させた後、
50℃の温風で乾燥させ樹皮チップを得た。得られた樹
皮チップの銅カルボキシメチルセルロースの担持量は3
%であり、色は濃褐色であった。 【0009】比較例1 樹皮チップ(北米産ベイマツ樹皮チップ、商品名インテ
リアバーク)1kgを、25〜30℃の0.2%水酸化
銅及び0.01%鉄−フタロシアニン分散液30Lに加
え十分に攪拌した。次いで樹皮チップを濾取し天日で乾
燥することにより水酸化銅及び鉄−フタロシアニン担持
樹皮チップを得た。 【0010】評価例1 実施例1及び比較例1で得られた樹皮チップの消臭能力
を、以下の試験法で評価した。なお、対象として未処理
樹皮チップを使用した。樹皮チップ20gを1.5Lの
ファスナ−バッグに入れ、悪臭ガスとして初期濃度10
0ppmの硫化水素またはアンモニアを封入した。一定
時間経過ごとに、残存するガス濃度を検知管を用いて測
定した。結果を表1に示す。また、本発明の方法で得ら
れた樹皮チップは、試験後も黒色化することはなかっ
た。 【0010】 【表1】【0011】評価例2 樹皮チップの耐水性を、以下の試験法で評価した。実施
例1で得られた樹皮チップおよび比較例としての市販消
臭材(評価例1と同一のもの)各々50gを水道水の蛇
口下で激しく5分間水洗した。次いで該樹皮チップを1
時間静水中に浸漬して後、50℃で乾燥した。これを、
評価例1と同様にして硫化水素に対する消臭能力を評価
した。結果を表2に示す。 【0012】 【表2】 【0013】 【発明の効果】本発明の方法で得られた樹皮チップは、
銅カルボキシメチルセルロ−スを多量に含有しており、
代表的な悪臭成分である硫化水素およびアンモニアに対
して優れた消臭能力を示すとともに、耐水性も高く、例
えば、植木鉢等の土の上に置かれて水を散布されても消
臭能力の低下を起こす恐れの無いものである。また、表
面が黒色化することもなく、装飾性も兼ね備えたもので
ある。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative and ornamental bark having an excellent deodorizing function, which is used as a filler for a flower pot or the like used for decoration and ornamentation. The present invention relates to a method for manufacturing a chip. [0002] Conventionally, bark has been used as it is as a deodorizing material in livestock houses without special treatment. This is based on the fact that tannins contained in the bark react with ammonia, which is one of the malodorous components, to change into odorless substances. However, although bark has an excellent deodorizing effect on ammonia, it does not have an deodorizing effect on hydrogen sulfide and the like, which are other typical malodorous components. In recent years, it has become popular to use the bark as chips of an appropriate size and arrange it on the soil of potted plants and artificial trees for decoration and appreciation.This bark has a phthalocyanine-based deodorizing function. There has been reported a bark chip carrying a compound having the same and having a deodorizing function. However, in these bark chips, it is difficult to carry a large amount of the compound having the deodorizing function on the bark surface because it is difficult to immobilize the compound. There is a disadvantage that the effect is inferior. [0003] As a method for improving the deodorizing effect of the deodorant on hydrogen sulfide and the like, a method of supporting a transition metal compound, particularly a copper compound colloid, or a method of using copper carboxymethyl cellulose as a pulp. And the like, and deodorant paper or deodorant nonwoven fabric according to the method is reported. However, according to this method, although very effective for fibrous substances such as pulp, the bark is difficult to carry a copper compound due to its surface characteristics and the like, and the bark component reacts with copper ions to react with the bark surface. Had a drawback such as blackening. Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above problems, and as a result, covered the surface of a bark chip with a film of a carboxymethyl cellulose solution having transparency. It has been found that by reacting this carboxymethyl cellulose membrane with copper ions, bark chips can be imparted with excellent deodorizing properties, durability and decorativeness, and have completed the present invention. That is, the present invention
An object of the present invention is to provide a method for producing a bark chip, in which carboxymethyl cellulose is applied or impregnated to a bark chip and then reacted with copper ions. Hereinafter, the present invention will be described in detail. The bark chips used in the present invention may be either conifers or hardwoods, but conifers are preferable, and examples thereof include red pine, black pine, and bay pine. The bark chips are reacted with copper ions after coating and impregnating carboxymethylcellulose. The application and impregnation of carboxymethylcellulose is performed by immersing the bark chips in an aqueous solution of carboxymethylcellulose. The carboxymethylcellulose to be used preferably has a water-soluble DS of about 0.4 to 0.6. The concentration is preferably about 0.5 to 3%,
It is sufficient to soak for about 30 minutes. Next, the reaction with copper ions is carried out by treating the bark chips coated and impregnated with carboxymethylcellulose with an aqueous solution of copper ions. Examples of the aqueous solution of copper ions used include aqueous solutions of copper acetate, copper sulfate, and the like. A reaction at room temperature for about 5 to 30 minutes is sufficient. After the reaction, bark chips are obtained by drying with hot air.However, in order to stabilize the copper carboxymethylcellulose coating, after reaction with copper ions, treatment with a dilute alkali, for example, a dilute caustic soda solution, followed by drying with hot air,
Bark chips can also be used. The present invention will be described in more detail with reference to the following examples. Example 1 1 kg of bark chips (North American pine bark chips, trade name Interior Bark) was immersed for 10 minutes in 30 L of a 1.5% carboxymethylcellulose (DS = 0.5) aqueous solution at 25 to 30 ° C. Methyl cellulose was impregnated. The impregnated bark chips were transferred into 30 L of a 3% aqueous copper acetate solution at 25 to 30 ° C., and gently stirred for 10 minutes to form a coating of copper carboxymethyl cellulose on the surface of the bark chips. Next, the chip is transferred into 25 L of a 0.005 N aqueous solution of sodium hydroxide at 25 to 30 ° C., and left for 10 minutes to stabilize the copper carboxymethyl cellulose film.
It was dried with warm air at 50 ° C. to obtain bark chips. The amount of copper carboxymethylcellulose carried on the obtained bark chips was 3
% And the color was dark brown. Comparative Example 1 1 kg of bark chips (North American pine bark chips, trade name Interior Bark) was added to 30 L of a 0.2% copper hydroxide and 0.01% iron-phthalocyanine dispersion at 25 to 30 ° C. and sufficiently added. Stirred. Next, the bark chips were collected by filtration and dried in the sun to obtain bark chips carrying copper hydroxide and iron-phthalocyanine. Evaluation Example 1 The deodorizing ability of the bark chips obtained in Example 1 and Comparative Example 1 was evaluated by the following test method. An untreated bark chip was used as a target. 20 g of bark chips were placed in a 1.5 L fastener bag, and the initial concentration was 10 as an odorous gas.
0 ppm of hydrogen sulfide or ammonia was enclosed. At certain intervals, the remaining gas concentration was measured using a detector tube. Table 1 shows the results. Further, the bark chips obtained by the method of the present invention did not become black even after the test. [Table 1] Evaluation Example 2 The water resistance of bark chips was evaluated by the following test method. 50 g of each of the bark chips obtained in Example 1 and a commercially available deodorant as a comparative example (the same as in Evaluation Example 1) were washed vigorously under a tap water tap for 5 minutes. The bark chips were then
After immersion in still water for an hour, it was dried at 50 ° C. this,
The deodorizing ability for hydrogen sulfide was evaluated in the same manner as in Evaluation Example 1. Table 2 shows the results. [Table 2] The bark chips obtained by the method of the present invention are:
Contains a large amount of copper carboxymethyl cellulose,
It has excellent deodorizing ability against hydrogen sulfide and ammonia, which are typical odorous components, and has high water resistance. There is no danger of lowering. In addition, the surface is not blackened and has a decorative property.

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) B27K 3/34 - 3/52 A01G 1/00 303 B27L 11/08 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) B27K 3/34-3/52 A01G 1/00 303 B27L 11/08

Claims (1)

(57)【特許請求の範囲】 【請求項1】 樹皮チップにカルボキシメチルセルロー
スを塗布または含浸した後、銅イオンと反応させること
を特徴とする樹皮チップの製造方法。
(57) [Claim 1] A method for producing a bark chip, comprising applying or impregnating carboxymethylcellulose to a bark chip and then reacting the bark chip with copper ions.
JP02721695A 1995-01-24 1995-01-24 Method of manufacturing bark chips Expired - Fee Related JP3399683B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP02721695A JP3399683B2 (en) 1995-01-24 1995-01-24 Method of manufacturing bark chips

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP02721695A JP3399683B2 (en) 1995-01-24 1995-01-24 Method of manufacturing bark chips

Publications (2)

Publication Number Publication Date
JPH08197508A JPH08197508A (en) 1996-08-06
JP3399683B2 true JP3399683B2 (en) 2003-04-21

Family

ID=12214914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP02721695A Expired - Fee Related JP3399683B2 (en) 1995-01-24 1995-01-24 Method of manufacturing bark chips

Country Status (1)

Country Link
JP (1) JP3399683B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107020676A (en) * 2017-05-23 2017-08-08 湖北燕加隆木制品有限公司 A kind of wood floors white edge dressing agent and preparation method thereof

Also Published As

Publication number Publication date
JPH08197508A (en) 1996-08-06

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