JPH01318100A - Production of fine powder of natural leather, fine powder of natural leather produced thereby, material for synthetic leather, synthetic leather composition and synthetic leather molding - Google Patents
Production of fine powder of natural leather, fine powder of natural leather produced thereby, material for synthetic leather, synthetic leather composition and synthetic leather moldingInfo
- Publication number
- JPH01318100A JPH01318100A JP63150658A JP15065888A JPH01318100A JP H01318100 A JPH01318100 A JP H01318100A JP 63150658 A JP63150658 A JP 63150658A JP 15065888 A JP15065888 A JP 15065888A JP H01318100 A JPH01318100 A JP H01318100A
- Authority
- JP
- Japan
- Prior art keywords
- leather
- natural leather
- natural
- fine
- fine powder
- 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.)
- Pending
Links
- 239000010985 leather Substances 0.000 title claims abstract description 91
- 239000000843 powder Substances 0.000 title claims abstract description 62
- 239000002649 leather substitute Substances 0.000 title claims abstract description 41
- 239000000203 mixture Substances 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000000465 moulding Methods 0.000 title claims description 4
- 239000000463 material Substances 0.000 title description 6
- 239000002245 particle Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 12
- 238000010298 pulverizing process Methods 0.000 claims description 23
- 239000002994 raw material Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000000227 grinding Methods 0.000 abstract description 9
- 239000002904 solvent Substances 0.000 abstract description 7
- 239000011324 bead Substances 0.000 abstract description 4
- 239000000919 ceramic Substances 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 238000005238 degreasing Methods 0.000 description 5
- 102000008186 Collagen Human genes 0.000 description 4
- 108010035532 Collagen Proteins 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 229920001436 collagen Polymers 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010025 steaming Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 241000283690 Bos taurus Species 0.000 description 1
- 241000283707 Capra Species 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 241000283086 Equidae Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 206010034133 Pathogen resistance Diseases 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- NEHMKBQYUWJMIP-NJFSPNSNSA-N chloro(114C)methane Chemical compound [14CH3]Cl NEHMKBQYUWJMIP-NJFSPNSNSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000004534 enameling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、天然皮革を細片にし、その皮革の細片を乾式
微粉砕機で微粉砕処理して、天然皮革の微粉を造る方法
、その方法により得られる天然皮革微粉、合成皮革原料
、並びに、その微粉や合成皮革原料により得られる合成
皮革組成物、合成皮革成型品に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for producing fine powder of natural leather by cutting natural leather into pieces and pulverizing the pieces of leather using a dry pulverizer; The present invention relates to natural leather fine powder and synthetic leather raw materials obtained by the method, as well as synthetic leather compositions and synthetic leather molded products obtained from the fine powder and synthetic leather raw materials.
上記天然皮革の微粉は、例えば樹脂と混合して合成皮革
に成型したり、液状塗料と混合して塗装に利用する等、
各種の用途に使用されるもので、合成皮革や塗装等に肌
ざわり、しなやかさ、自然な風合い、吸放湿性、非帯電
性などにおいて天然皮革と同等の特性を備えさせること
ができ、かつ、耐水性、耐久性、加工性、耐菌性などに
おいて天然皮革よりも優れた特性を備えさせることがで
きる、有用な新素材である。The above-mentioned fine powder of natural leather can be mixed with resin and molded into synthetic leather, mixed with liquid paint and used for painting, etc.
It is used for a variety of purposes, and can be used to provide synthetic leather and coatings with properties equivalent to natural leather in terms of feel, suppleness, natural texture, moisture absorption and desorption properties, non-static properties, etc., and It is a useful new material that has properties superior to natural leather in terms of water resistance, durability, workability, and antibacterial properties.
従来、乾式微粉砕機による微粉砕処理でわ）砕工程を完
了していた。Conventionally, the pulverization process was completed by pulverization using a dry pulverizer.
Ｃ発明が解決しようとする課題〕
しかし、乾式微粉砕機で得られる天然皮革微粉の平均粒
径は２０．＋１ｍ程度以上であり、合成樹脂と混合して
良質の合成皮革を造るには未だ微粉砕が不十分であった
。Problem to be solved by the invention C] However, the average particle size of the natural leather fine powder obtained by the dry pulverizer is 20. The particle size was about +1 m or more, and the pulverization was still insufficient to mix it with synthetic resin to make high-quality synthetic leather.
つまり、十分に天然皮革の風合を備えた良質な合成皮革
を造るためには、天然皮革の微粉を均一に樹脂と混合す
ると共に、天然皮革微粉の含を率を高くする必要がある
が、微粉砕が不十分であると、均一混合が極めて困難に
なり、天然皮革微粉の分布が顕微鏡でミクロ的に観察す
るとかなり不均一になり、さらには、天然皮革微粉どう
しの隙間が大きくなって、その隙間を埋める樹脂の量が
多くなり、天然皮革微粉の含有率が低くなる。In other words, in order to produce high-quality synthetic leather that has the feel of natural leather, it is necessary to uniformly mix natural leather fine powder with resin and to increase the content of natural leather fine powder. If pulverization is insufficient, it will be extremely difficult to mix uniformly, and the distribution of fine natural leather powder will become quite uneven when observed microscopically using a microscope. Furthermore, the gaps between fine natural leather powder will become large. The amount of resin that fills the gaps increases, and the content of natural leather fine powder decreases.
本発明の目的は、天然皮革の微粉砕を十分に実行できる
ようにして、より十分な天然皮革の風合を有する良質の
合成皮革を提供できるようにする点にある。An object of the present invention is to enable sufficient pulverization of natural leather to provide high-quality synthetic leather having the feel of natural leather.
〔課題を解決するための手段］
本発明の特徴手段は、乾式微粉砕機で得た皮革の微粉を
湿式ボールミルで超微粉砕処理することにあり、その作
用効果は次の通りである。[Means for Solving the Problems] The characteristic means of the present invention is to ultrafinely pulverize leather fine powder obtained by a dry pulverizer using a wet ball mill, and its effects are as follows.
（作 用〕
つまり、乾燥微粉砕機で平均粒径が２（Ｊｔｔｍ程変に
まで微粉砕した天然皮革微粉をいかに処理すればさらに
微細に粉砕できるかについて、各種実験により追究した
ところ、次の事実が判明した。(Function) In other words, we conducted various experiments to find out how to process natural leather fine powder that had been finely ground to an average particle size of 2 (Jttm) using a dry pulverizer to make it even finer. The facts have been revealed.
すなわち、７！式ボールミルを用い、例えば３１程度の
セラミックビーズと水や溶剤と共に、天然皮革微粉を超
微粉砕処理すると、天然皮革を平均粒径が１〜５μｍの
超微粉に容易にわ〕砕できる事実が判明した。In other words, 7! It has been discovered that natural leather can be easily crushed into ultrafine powder with an average particle size of 1 to 5 μm by ultrafinely pulverizing fine natural leather powder using a ball mill, for example, with about 31 ceramic beads, water, and a solvent. did.
その原因を推察すると、次の通りである。天然皮革は繊
維質であるために乾式では粉砕しにくく、Ｎ？＆粉砕に
なるほどより一層粉砕しにくくなり、また、天然皮革は
乾式で粉砕すると発熱して炭化変質しやすく、さらには
、天然皮革は微粉になるほど軽くて気流にのりやすくな
ると共に、衝撃用などの粉砕部材とともに動きやすくな
り、衝撃などの粉砕作用がききにく（、したがって、乾
式微粉砕機では天然皮革を十分に超微粉砕できない。The reason for this is inferred as follows. Because natural leather is fibrous, it is difficult to crush using a dry method. The more the leather is ground, the more difficult it becomes to grind.Also, when natural leather is dry ground, it generates heat and tends to carbonize.Furthermore, the finer the natural leather is, the lighter it is and the easier it is to carry in the airflow, and it can be used for shocks, etc. It moves easily with the crushing member, making it difficult for crushing effects such as impact (therefore, dry-type fine crushers cannot sufficiently crush natural leather into ultrafine pieces).
しかし、そのような欠点は湿式ボールミルでは全て解決
でき、その上、乾式微粉砕機で得た天然皮革の微粉はか
なり硬いものであるが、湿式ボールミルで水や溶剤に天
然皮革微粉を浸漬させると、天然皮革微粉が容易に膨潤
して軟かくなり、したがって、湿式ボールミルによると
、ビーズによる効果的な剪断作用で軟かくなった天然皮
革微粉が確実にかつ十分に超微粉砕処理されるのである
。However, all of these drawbacks can be solved with a wet ball mill, and in addition, the natural leather fine powder obtained with a dry pulverizer is quite hard, but when the natural leather fine powder is immersed in water or solvent with a wet ball mill, it becomes hard. , natural leather fine powder easily swells and becomes soft, and therefore, according to the wet ball mill, the softened natural leather fine powder can be reliably and sufficiently ultra-finely pulverized by the effective shearing action of the beads. .
そして、天然皮革を平均粒径が１〜５μｍの超微粉にす
ると、合成皮革を造るための樹脂との混合を極めて均一
に実行できて、合成皮革における天然皮革微粉の分布を
十分に均一化でき、また、天然皮革微粉の含有率を十分
に増大でき、従来の合成皮革よりもさらに天然皮革の風
合を有する合成皮革を造れる。By turning natural leather into ultrafine powder with an average particle size of 1 to 5 μm, it is possible to mix it with the resin for making synthetic leather extremely uniformly, and the distribution of natural leather fine powder in synthetic leather can be made sufficiently uniform. Moreover, the content of natural leather fine powder can be sufficiently increased, and synthetic leather can be produced that has a more natural leather feel than conventional synthetic leather.
その結果、天然皮革と同等あるいはそれ以上の特性を有
する製品が得られる天然皮革微粉、あるいは、天然皮革
微粉と液体との混合物である合成皮革原料を量産できる
ようになった。As a result, it has become possible to mass-produce natural leather fine powder or synthetic leather raw material, which is a mixture of natural leather fine powder and liquid, to obtain products with properties equal to or better than natural leather.
上記合成皮革原料は、湿式ボールミルでの超微粉砕処理
によって極めて高度に均一混合状態になっており、かつ
、液状であるため、合成皮革を造るだめの樹脂との混合
を短時間で均一に実行できる利点がある。The above synthetic leather raw materials are ultra-finely pulverized in a wet ball mill and are in a highly uniform mixed state, and because they are liquid, they can be uniformly mixed with the resin used to make synthetic leather in a short time. There are advantages that can be achieved.
そして、上記天然皮革微粉や合成皮革原料を利用して、
合成皮革組成物や合成皮革成型品などの、天然皮革の良
さを十分に得られる製品を、安価に大量生産できるよう
になった。Then, using the above natural leather fine powder and synthetic leather raw materials,
It has become possible to inexpensively mass-produce products that fully obtain the benefits of natural leather, such as synthetic leather compositions and synthetic leather molded products.
次に、図面により実施例を示す。 Next, examples will be shown with reference to drawings.
牛、豚、山羊、羊、馬などの動物の天然皮を、水づけ、
裏打ち、石灰づけ、脱毛などの前処理を施した後で、タ
ンニンなめし、クロムなめし、油なめし、みょうばんな
めし、鉄なめしなどのなめし処理して得た革、望ましく
は各種の革製品の製造によって廃棄物として得られる切
れ端しの革を、カンタ−ミルによる粗砕、削り加工、切
断加工などで細片化処理し、一般に３０ｍｍ以下、望ま
しくは５龍以下の革の細片をつくる。Natural skins of animals such as cows, pigs, goats, sheep, and horses are soaked in water.
After pre-treatment such as lining, liming, and hair removal, leather obtained through tanning treatments such as tanning, chrome tanning, oil tanning, alum tanning, and iron tanning, preferably from the production of various leather products. The resulting leather scraps are crushed into pieces using a canter mill, scraped, cut, etc. to produce leather strips that are generally 30 mm or less, preferably 5 mm or less in size.
細片化処理は一工程又は複数工程であってもよく、また
、複数工程の場合異種の細片化処理を組合わせることが
望ましい。The shredding process may be performed in one step or in multiple steps, and in the case of multiple steps, it is desirable to combine different types of shredding treatments.
スチーマ−による蒸煮、マイクロ波による加熱などの適
当な手段で革の細片を加熱処理し、革の主成分である互
に絡み合った螺旋繊維状のコラーゲンを膨潤させ、コラ
ーゲンどうしの絡み合いを十分にほぐす。The leather strips are heat-treated using an appropriate method such as steaming with a steamer or heating with microwaves to swell the intertwined spiral fibers of collagen, which is the main component of leather, and fully loosen the entanglements between the collagens. Loosen.
コラーゲンの絡み合いが十分にほくされた革の細片を適
当な乾燥機によって一般に５％以下、望ましくは３％以
下の含水率になるまで乾燥処理する。The leather strips from which the collagen entanglements have been sufficiently loosened are dried in a suitable dryer until the moisture content is generally 5% or less, preferably 3% or less.
乾燥処理は一工程又は複数工程であってもよい。The drying process may be one step or multiple steps.
乾燥した革の細片を乾式微粉砕機によって十分に微粉砕
処理し、平均粒径が２０μｍ程度以上の天然革の微粉を
造る。The dried leather pieces are thoroughly pulverized using a dry pulverizer to produce fine natural leather powder having an average particle size of about 20 μm or more.
乾式微粉砕機で得た微粉を適当な湿式ボールミルによっ
て十分に超微粉砕処理し、平均粒径が１〜５μｍの天然
革の超微粉と水や溶剤などの液体の混合物から成る合成
皮革原料を造る。The fine powder obtained using a dry type pulverizer is sufficiently ultrafinely pulverized using a suitable wet ball mill to obtain a synthetic leather raw material consisting of a mixture of ultrafine natural leather powder with an average particle size of 1 to 5 μm and a liquid such as water or a solvent. make.
その合成皮革原料を適当な乾燥機で乾燥処理し、さらに
必要に応じて下記（イ）ないしくハ）項の後処理を施し
て、製品としての天然革の微粉を得る。The synthetic leather raw material is dried in a suitable dryer, and if necessary, the following post-treatments (a) to c) are performed to obtain fine powder of natural leather as a product.
（イ）４５メソシユ以下の篩によって篩分は処理し、篩
下成分を微粉製品にする。(b) The sieve fraction is processed through a sieve with a size of 45 sieve or less, and the under-sieve component is made into a fine powder product.
（１１）適当な塗料で着色処理し、適当な乾燥機で乾燥
処理し、着色した微粉製品にする。(11) Color it with an appropriate paint and dry it in an appropriate dryer to make a colored fine powder product.
（ハ）適当な分級機で分級処理して、超微粉製品にする
。(c) Classify with a suitable classifier to produce ultra-fine powder products.
上記の天然革の微粉又は合成皮革原料に対する下記（ａ
）項ないしくｃ）項の処理で各種の製品を造る。The following (a) for the above natural leather fine powder or synthetic leather raw material
A variety of products are manufactured using the processes described in item ) to c).
（ａ）塩化ビニルなどの各種熱可塑性樹脂、ポリウレタ
ンなどの各種熱硬化性樹脂、その他の適当な合成樹脂と
微粉や合成皮革原料を混合処理して、合成皮革組成物を
造る。この時、微粉が十分に微細になっているため、混
合を容易迅速にかつ微粉が凝集しない均一分散した状態
で、さらには、微粉含有率を大にして実行できる。(a) A synthetic leather composition is produced by mixing various thermoplastic resins such as vinyl chloride, various thermosetting resins such as polyurethane, and other suitable synthetic resins with fine powder and synthetic leather raw materials. At this time, since the fine powder is sufficiently fine, mixing can be carried out easily and quickly, in a uniformly dispersed state without agglomeration, and furthermore, the fine powder content can be increased.
（ｂ）上記（ａ）項の合成皮革組成物を適当な成型機で
成型処理して、シート状などの合成皮革成型品を造る。(b) The synthetic leather composition of item (a) above is molded using a suitable molding machine to produce a synthetic leather molded product such as a sheet.
この時、微粉が十分に微細になっているため、成型機の
摩損を十分に防止できると共に、表面がスムーズな成型
品を得られる。At this time, since the fine powder is sufficiently fine, wear and tear on the molding machine can be sufficiently prevented, and a molded product with a smooth surface can be obtained.
（ｃ）適当な液状や熱可塑性の塗料と微粉を混合処理し
て、液状や粉末状の塗料材を造る。この時も、上記（ａ
）項と同様に混合を容易迅速にかつ均一に実行でき、ま
た、スプレーガンの詰まりの無い塗料材が得られる。(c) Produce a liquid or powder coating material by mixing a suitable liquid or thermoplastic coating material with fine powder. At this time, the above (a
Similar to item ), mixing can be easily, quickly, and uniformly performed, and a coating material that does not clog the spray gun can be obtained.
これら製品は、例えば自動車のシートやハンドル、壁材
、家具、その他の各種用途に天然革の風合い等の特性を
備えさせるために利用できる。These products can be used, for example, to provide car seats, steering wheels, wall materials, furniture, and other various uses with characteristics such as the texture of natural leather.
次に別実施例を示す。 Next, another example will be shown.
なめした革を原料にすると、微粉砕が容易になると共に
製品の耐菌性が良くなる等の利点があるが、なめし処理
しないで前処理の一部又は全部を施しただけの皮や前処
理も施さない皮を原料にすることも可能である。Using tanned leather as a raw material has advantages such as easier pulverization and improved bacterial resistance of the product, but leather that has not been tanned but has undergone some or all pretreatment or It is also possible to use untreated skin as raw material.
蒸煮などによる皮革の細片の加熱処理を省略してもよい
。Heat treatment of the leather strips, such as by steaming, may be omitted.
乾式微粉砕処理前の乾燥処理は、例えば加熱処理後の皮
革の細片が十分に低水分である場合、貯蔵中の自然乾燥
で十分に低水分になる場合、加熱処理を省略する場合な
どにおいては省略できる。Drying treatment before dry pulverization treatment may be used, for example, if the leather strips after heat treatment have a sufficiently low moisture content, if the moisture content is sufficiently low due to natural drying during storage, or if heat treatment is omitted. can be omitted.
乾式微粉砕機の種類は不問であり、衝撃式の公知の粉砕
機が一般的に使用される。The type of dry pulverizer is not limited, and a known impact type pulverizer is generally used.
湿式ボールミルの種類は不問であり、媒体攪拌型ミル、
メゾイヤミル、サンドミル、ビーズミルと呼ばれる公知
の各種湿式ミルを利用でき、殊に、皮革微粉、３−賞程
度のジルコニアなどのセラミックボール、水や溶剤を容
器内において縦向き軸芯周りで駆動回転される攪拌具に
より掻き混ぜる公知型式のものが望ましい。The type of wet ball mill does not matter; it can be a media agitation type mill,
Various well-known wet mills called mezoia mills, sand mills, and bead mills can be used, and in particular, fine leather powder, ceramic balls such as 3-grade zirconia, water or solvent are driven and rotated around a vertical axis in a container. A known type that stirs with a stirring tool is preferable.
湿式ボールミルに水又はン容剤のいずれを使用するかは
、一般に合成皮革原料に混合する樹脂に応じて選定し、
樹脂が親水性の場合は水を、樹脂が疎水性の場合はキシ
レン、トルエン、シクロヘキサン、ＤＭＦなどの溶剤を
使用する。Whether to use water or a filler in a wet ball mill is generally selected depending on the resin to be mixed with the synthetic leather raw material.
When the resin is hydrophilic, water is used, and when the resin is hydrophobic, a solvent such as xylene, toluene, cyclohexane, DMF, etc. is used.
湿式ボールミルの内部を、液体が沸騰しない温度範囲で
加熱し、さらに望ましくは例えば１〜５ｋｇ ／ ｃｄ
Ｇ程度に加圧すると、天然皮革の主成分であるコラー
ゲンＭ織繊維の膨潤、脱脂が促進されて、粉砕が容易に
なり、蒸煮などの加熱処理の省略、粉砕時間の短縮、粉
砕の省エネルギー等に有効である。The inside of the wet ball mill is heated to a temperature range where the liquid does not boil, and more preferably, for example, 1 to 5 kg/cd.
When pressurized to about G, the swelling and degreasing of collagen M woven fibers, which are the main components of natural leather, are promoted, making grinding easier, eliminating heat treatments such as steaming, shortening grinding time, and saving energy during grinding. It is effective for
湿式ボールミルによって得た合成皮革原料やその後処理
で得た皮革の微粉をいかなる製品にするかは適当に選択
でき、例えばフィルム、布、紙、その他のシートに微粉
を接着した製品にする等が可能である。You can choose what kind of product you want to make from the synthetic leather raw material obtained by wet ball milling or the leather fine powder obtained by subsequent processing.For example, it is possible to make a product by bonding the fine powder to a film, cloth, paper, or other sheet. It is.
成型品の表面仕上げは適当に実施でき、例えば、型押し
、エナメル加工、表面研削などを行う。The surface of the molded product can be suitably finished by, for example, embossing, enameling, surface grinding, etc.
粉砕効率上及び製品の色変化防止のために皮革の脱脂処
理を施すことが望ましく、加熱処理の前又は後、乾式の
微粉砕処理の前又は後、あるいは、湿式ボールミルによ
る超微粉砕処理と同時又はその後のいずれかにおいて脱
脂処理を皮革に施す。It is desirable to degrease the leather in order to improve the efficiency of grinding and prevent color changes in the product, and it is desirable to degrease the leather before or after heat treatment, before or after dry pulverization, or simultaneously with ultrafine pulverization using a wet ball mill. Alternatively, the leather is subjected to a degreasing treatment either afterwards.
脱脂処理はベンジン、塩化メチル、メチルアセトン、酢
酸エメルなどの油脂に対する溶剤、又は、温水中に皮革
を浸漬して実施し、望ましくは、脱脂処理中に超音波を
付与して、効率良く脱脂処理する６
本発明による天然皮革の微粉、合成皮革原料、合成皮革
組成物、合成皮革成型品の用途や利用形態は不問である
。Degreasing is carried out using a solvent for fats and oils such as benzine, methyl chloride, methyl acetone, and emeryl acetate, or by immersing the leather in warm water. Preferably, ultrasonic waves are applied during degreasing to ensure efficient degreasing. 6. The use and form of use of the natural leather fine powder, synthetic leather raw material, synthetic leather composition, and synthetic leather molded product according to the present invention are not limited.
図面は本発明の実施例を示すフローシートである。 The drawing is a flow sheet showing an embodiment of the invention.
Claims (1)
機で微粉砕処理する天然皮革の微粉製造方法であって、 前記乾式微粉砕機で得た皮革の微粉を湿式ボールミルで
超微粉砕処理する天然皮革の微粉製造方法。 ２、前記湿式ボールミルの内部を、液体が沸騰しない温
度範囲で加熱する請求項１記載の天然皮革の微粉製造方
法。 ３、前記湿式ボールミルの内部を加圧する請求項２記載
の天然皮革の微粉製造方法。 ４、天然皮革の細片化処理、その後の乾式微粉砕機によ
る微粉砕処理、その後の湿式ボールミルによる超微粉砕
処理によって製造された、平均粒径が１〜５μｍの天然
皮革微粉。５、天然皮革の細片化処理、その後の乾式微
粉砕機による微粉砕処理、その後の湿式ボールミルによ
る超微粉砕処理によって製造されると共に、前記超微粉
砕処理において混合された皮革微粉と液体との混合物で
あり、前記皮革微粉の平均粒径が１〜５μｍである合成
皮革原料。 ６、天然皮革の細片化処理、その後の乾式微粉砕機によ
る微粉砕処理、その後の湿式ボールミルによる超微粉砕
処理によって製造されると共に平均粒径が１〜５μｍの
天然皮革微粉、及び、樹脂の混合物である合成皮革組成
物。 ７、天然皮革の細片化処理、その後の乾式微粉砕機によ
る微粉砕処理、その後の湿式ボールミルによる超微粉砕
処理によって製造されると共に平均粒径が１〜５μｍの
天然皮革微粉、及び、樹脂の混合物を成型して成る合成
皮革成型品。[Scope of Claims] 1. A method for producing fine powder of natural leather, which comprises cutting natural leather into strips and pulverizing the leather strips using a dry pulverizer, comprising: A method for producing fine natural leather powder by ultra-finely pulverizing fine powder using a wet ball mill. 2. The method for producing fine powder of natural leather according to claim 1, wherein the inside of the wet ball mill is heated within a temperature range in which the liquid does not boil. 3. The method for producing fine powder of natural leather according to claim 2, wherein the inside of the wet ball mill is pressurized. 4. Natural leather fine powder having an average particle size of 1 to 5 μm, produced by fragmenting natural leather, followed by fine pulverization using a dry pulverizer, and then ultrafine pulverization using a wet ball mill. 5. Produced by finely pulverizing natural leather, followed by fine pulverization using a dry pulverizer, and then ultrafine pulverization using a wet ball mill, the fine leather powder and liquid mixed in the ultrafine pulverization process are A synthetic leather raw material, which is a mixture of the above, and the average particle size of the leather fine powder is 1 to 5 μm. 6. Fine natural leather powder with an average particle size of 1 to 5 μm, which is produced by fragmenting natural leather, followed by fine pulverization using a dry pulverizer, and then ultrafine pulverization using a wet ball mill, and a resin. A synthetic leather composition that is a mixture of. 7. Fine natural leather powder with an average particle size of 1 to 5 μm, which is produced by fragmenting natural leather, followed by fine pulverization using a dry pulverizer, and then ultrafine pulverization using a wet ball mill, and a resin. Synthetic leather molded product made by molding a mixture of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63150658A JPH01318100A (en) | 1988-06-17 | 1988-06-17 | Production of fine powder of natural leather, fine powder of natural leather produced thereby, material for synthetic leather, synthetic leather composition and synthetic leather molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63150658A JPH01318100A (en) | 1988-06-17 | 1988-06-17 | Production of fine powder of natural leather, fine powder of natural leather produced thereby, material for synthetic leather, synthetic leather composition and synthetic leather molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01318100A true JPH01318100A (en) | 1989-12-22 |
Family
ID=15501664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63150658A Pending JPH01318100A (en) | 1988-06-17 | 1988-06-17 | Production of fine powder of natural leather, fine powder of natural leather produced thereby, material for synthetic leather, synthetic leather composition and synthetic leather molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01318100A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456264A2 (en) * | 1990-05-11 | 1991-11-13 | Idemitsu Petrochemical Co. Ltd. | Powdered leather and method of producing the same |
| JPH0418500A (en) * | 1990-05-11 | 1992-01-22 | Idemitsu Petrochem Co Ltd | Leather powder-containing composition |
| US9845516B2 (en) | 2013-04-11 | 2017-12-19 | Xeros Limited | Method for treating a substrate made of animal fibers with solid particles and a chemical formulation comprising a colourant |
| CN109092519A (en) * | 2017-09-01 | 2018-12-28 | 景德镇百特威尔新材料有限公司 | A kind of Ball-stirring mill of non-steel ball medium and the sand milling efficient combination grinding process that ends |
| US10287642B2 (en) | 2014-10-10 | 2019-05-14 | Xeros Limited | Animal skin substrate treatment apparatus and method |
| US10301691B2 (en) | 2014-10-03 | 2019-05-28 | Xeros Limited | Method for treating an animal substrate |
| US10808289B2 (en) | 2014-10-10 | 2020-10-20 | Xeros Limited | Animal skin substrate treatment apparatus and method |
-
1988
- 1988-06-17 JP JP63150658A patent/JPH01318100A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456264A2 (en) * | 1990-05-11 | 1991-11-13 | Idemitsu Petrochemical Co. Ltd. | Powdered leather and method of producing the same |
| JPH0418500A (en) * | 1990-05-11 | 1992-01-22 | Idemitsu Petrochem Co Ltd | Leather powder-containing composition |
| EP0456264B1 (en) * | 1990-05-11 | 1995-12-27 | Idemitsu Petrochemical Co. Ltd. | Powdered leather and method of producing the same |
| US9845516B2 (en) | 2013-04-11 | 2017-12-19 | Xeros Limited | Method for treating a substrate made of animal fibers with solid particles and a chemical formulation comprising a colourant |
| US10745769B2 (en) | 2013-04-11 | 2020-08-18 | Xeros Limited | Method for treating a substrate made of animal fibers with solid particles and a chemical formulation |
| US10301691B2 (en) | 2014-10-03 | 2019-05-28 | Xeros Limited | Method for treating an animal substrate |
| US10287642B2 (en) | 2014-10-10 | 2019-05-14 | Xeros Limited | Animal skin substrate treatment apparatus and method |
| US10808289B2 (en) | 2014-10-10 | 2020-10-20 | Xeros Limited | Animal skin substrate treatment apparatus and method |
| CN109092519A (en) * | 2017-09-01 | 2018-12-28 | 景德镇百特威尔新材料有限公司 | A kind of Ball-stirring mill of non-steel ball medium and the sand milling efficient combination grinding process that ends |
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