JPH0770600A - Collagen powder - Google Patents

Collagen powder

Info

Publication number
JPH0770600A
JPH0770600A JP21882293A JP21882293A JPH0770600A JP H0770600 A JPH0770600 A JP H0770600A JP 21882293 A JP21882293 A JP 21882293A JP 21882293 A JP21882293 A JP 21882293A JP H0770600 A JPH0770600 A JP H0770600A
Authority
JP
Japan
Prior art keywords
collagen
parts
powder
treatment
wet
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
Application number
JP21882293A
Other languages
Japanese (ja)
Inventor
Hideki Hayashida
英樹 林田
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Priority to JP21882293A priority Critical patent/JPH0770600A/en
Publication of JPH0770600A publication Critical patent/JPH0770600A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain a collagen powder which is suitable as an additive for modifying a coating material, a synthetic leather, a man-made leather, a molding material, etc., based on a synthetic thermoplastic or thermosetting resin and also as an additive for modifying fiber materials such as woven and nonwoven fabrics. CONSTITUTION:A collagen powder has an apparent bulk density of 0.02-0.12g/ml, an oil absorption capacity of 1.70-4.00ml/g, and an average particle size of 20mum or lower and contains at least 30wt.% particles having ratios of the minor axis to the major axis of 0.4 or lower.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、新規なコラーゲン粉末
に関するものである。詳しくは、熱可塑性樹脂または熱
硬化性樹脂等の合成樹脂をベースとする塗料、合成皮
革、人工皮革、成型材料等の改質、さらに織布、不織布
等の繊維の改質に有用な添加剤として使用するのに適し
たコラーゲン粉末に関するものである。
FIELD OF THE INVENTION The present invention relates to a novel collagen powder. Specifically, additives useful for modifying paints, synthetic leather, artificial leather, molding materials, etc. based on synthetic resins such as thermoplastic resins or thermosetting resins, and for modifying fibers such as woven and non-woven fabrics. It relates to a collagen powder suitable for use as.

【0002】[0002]

【従来の技術】近年、塗料、人工皮革等は高級化志向に
伴い、天然皮革のような外観、感触、吸放湿性等の性能
を持つ事が要求され、これに応えるべく、ポリウレタン
樹脂、ポリアクリル樹脂、ポリ塩化ビニル樹脂等の合成
樹脂にコラーゲン粉末、皮革粉、ゼラチン粉末、ポリウ
レタンビーズ等の樹脂ビーズ等を混合して、天然皮革様
に改質する事が試られている。これらの中でも、特にコ
ラーゲン粉末と皮革粉は、その優れた吸放湿性、吸水性
等の物性により、最近塗料、人工皮革、繊維等の分野で
の利用が活発に行われる様になってきている。コラーゲ
ン粉末や皮革粉は従来よりいくつか提案されているが、
それらの多くは、クロムなめし、またはタンニンなめし
された天然皮革を単に粉砕して粉末化したものであり、
粉末化されても粒子状でなく長い繊維状となり易く、例
えば、特公昭40−11075号公報に見られるよう
に、熱可塑性樹脂にこれらを混合して製造した人工皮革
は表面の平滑性が失われ、天然皮革様の触感が得られな
い等の問題があった。
2. Description of the Related Art In recent years, paints and artificial leathers have been required to have properties such as appearance, feel, moisture absorption and desorption, etc., which are similar to those of natural leather due to the trend toward higher quality. It has been attempted to mix synthetic resin such as acrylic resin and polyvinyl chloride resin with collagen beads, leather powder, gelatin powder, resin beads such as polyurethane beads, and the like to modify it into natural leather. Among these, collagen powder and leather powder, in particular, have recently become actively used in the fields of paints, artificial leather, fibers, etc. due to their excellent physical properties such as moisture absorption and desorption, water absorption and the like. . Several collagen powders and leather powders have been proposed so far,
Many of them are simply crushed and pulverized from tanned or tanned natural leather.
Even when pulverized, it tends to be a long fibrous form instead of a particulate form. For example, as seen in Japanese Patent Publication No. 40-11075, artificial leather produced by mixing these with a thermoplastic resin loses the smoothness of the surface. However, there was a problem that a natural leather-like touch could not be obtained.

【0003】また、特開昭63−99298号公報に見
られるように皮革屑をスチーム加熱処理した後に粉砕し
て粒子状の粉末にする方法が提案されているが、スチー
ムにより100℃以上に加熱されているので、これによ
って得られた皮革粉は吸放湿性が小さく、見掛けかさ比
重が大きな粉末となってしまい、これを塗料等の添加剤
として使用した場合には、表面の艶消しや吸放湿性の効
果が不足する等の欠点があった。更に、特開平4ー22
6538号公報では、特殊な方法により精製されたコラ
ーゲンを主成分とする動物の組織を湿式粉砕した後、多
価金属なめし剤を用いてなめし処理を行いコラーゲン湿
体を製造し、次いで脱水・乾燥・粉砕を行って粉末とす
る方法が提案されているが、脱水後、乾燥中に繊維状の
安定化コラーゲン湿体がどうしが絡まり合って乾燥むら
が生じ、粉砕後のコラーゲン粉末の物性が低下する等の
欠点があり、未だ満足のいくものではなかった。
As disclosed in Japanese Patent Laid-Open No. 63-99298, there has been proposed a method in which leather scraps are subjected to a steam heating treatment and then pulverized to a particulate powder, which is heated to 100 ° C. or higher by steam. As a result, the leather powder thus obtained has a low moisture absorption / desorption property and a large apparent bulk density, and when it is used as an additive for paints, etc. There are drawbacks such as lack of moisture releasing effect. Furthermore, JP-A-4-22
According to Japanese Patent No. 6538, a tissue of an animal containing collagen as a main component, which has been purified by a special method, is wet-milled and then tanned using a polyvalent metal tanning agent to produce a wet collagen body, which is then dehydrated and dried.・ A method of crushing into powder has been proposed, but during dehydration and drying, fibrous stabilized collagen wet bodies are entangled with each other to cause unevenness of drying, resulting in deterioration of physical properties of the collagen powder after crushing. There were some drawbacks, such as the fact that it was not satisfactory.

【0004】[0004]

【発明が解決しようとする課題】本発明の目的は、従来
技術の問題点が改良された、見掛けかさ比重が低く、粒
子状または粒子状に類似した粉末であって、塗料、合成
皮革、人工皮革、成形材料等のベースあるいは合成樹脂
に添加してこれらに天然皮革に近い性質を付与し、ま
た、繊維の改質においては、従来よりも高い吸放湿性を
繊維に付与する事のできるコラーゲン粉末を提供する事
にある。
DISCLOSURE OF THE INVENTION The object of the present invention is to provide a powder having a low apparent bulk specific gravity and having a low apparent bulk specific gravity and particles or particles similar to those in the prior art. Collagen that can be added to the base of leather, molding material or the like or synthetic resin to give them properties close to those of natural leather, and in the modification of fiber, can give the fiber higher moisture absorption and desorption than before. It is to provide powder.

【0005】[0005]

【課題を解決するための手段】上記目的を達成する為に
種々検討した結果、以下の方法により目的とするコラー
ゲン粉末が得られることを見い出し、本発明を完成する
に至った。 豚、牛等の裸皮等の動物組織を石灰漬け、
酵素処理、水洗等の処理をして得られる精製されたコラ
ーゲン塊状物を細断し、水中でコラーゲン濃度1〜30
重量%、水温37℃以下、及び、pH2〜8の間で湿式
粉砕する事により、コラーゲンの細繊維(フィブリル)
分散物または溶解物が得られる。これに従来裸皮のなめ
し剤として使用されている硫酸クロム、硫酸アルミニウ
ム、硫酸ジルコニル等の多価金属塩類の1種類または2
種類を加えてなめし処理を行い安定化コラーゲン湿体と
した後に、pH4〜8の範囲にpHを調整して脱水し、
さらに乾燥、粉砕を行って微粉末を得るコラーゲン粉末
の製造方法において、脱水後、繊維状の安定化コラーゲ
ンを、表面外観として微細なコラーゲンファイバーが出
ていない形状に成型した後に乾燥、粉砕を行うことによ
って、見掛けかさ比重が0.02〜0.12g/mL
で、吸油度が1.70〜4.00mL/gであり、平均
粒径が20μm未満のコラーゲン粉末であって、且つ、
粉末の短軸/長軸の比が0.4以下である粒子の含量が
3重量%以上となるコラーゲン粉末が得られることを見
い出し、本発明を完成するに至った。
As a result of various studies to achieve the above object, it was found that the target collagen powder can be obtained by the following method, and the present invention was completed. Animal tissues such as pigs and cows' bare skins are lime-pickled,
Purified collagen agglomerates obtained by treatment such as enzyme treatment and washing with water are shredded, and the collagen concentration in water is from 1 to 30.
Fine fibers of collagen (fibrils) by wet crushing in wt%, water temperature below 37 ° C, and pH between 2-8
A dispersion or lysate is obtained. One or two of the polyvalent metal salts such as chromium sulfate, aluminum sulfate and zirconyl sulfate that have been conventionally used as a tanning agent for bare skin.
After adding a kind and tanning to make a stabilized collagen wet body, adjust the pH to a range of pH 4 to 8 and dehydrate,
Further, in the method for producing a collagen powder, which is further dried and pulverized to obtain a fine powder, after dehydration, fibrous stabilized collagen is molded into a shape in which fine collagen fibers do not appear as a surface appearance, and then dried and pulverized. As a result, the apparent bulk density is 0.02-0.12 g / mL
A collagen powder having an oil absorption of 1.70 to 4.00 mL / g and an average particle size of less than 20 μm, and
The present invention has been completed by finding that a collagen powder having a particle short-axis / long-axis ratio of 0.4 or less and a content of particles of 3% by weight or more can be obtained.

【0006】本発明のコラーゲン粉末は、精製裸皮をな
めし処理して製造した皮革を単に粉砕して得られる皮革
粉とは異なり、水中における粉砕処理によりコラーゲン
繊維束が一旦完全に解繊あるいは溶解された後になめし
処理により凝集されて構成されるので、粗密で複雑な空
隙の多い構造となり、そのため、見掛けかさ比重(JI
S K6721により測定)が0.02〜0.12g/
mLと小さく、吸油度(JIS K 5101により測
定)が1.70〜4.00mL/gと高くなることが特
徴である。
The collagen powder of the present invention is different from leather powder obtained by simply crushing leather produced by tanning purified bare leather, and the collagen fiber bundle is once completely defibrated or dissolved by crushing treatment in water. Since it is composed by being agglomerated by tanning after it has been formed, it has a dense and complex structure with many voids. Therefore, the apparent bulk specific gravity (JI
Measured by SK6721) is 0.02-0.12 g /
It is characterized by being as small as mL and having a high oil absorption (measured by JIS K 5101) of as high as 1.70 to 4.00 mL / g.

【0007】コラーゲン粉末の見掛けかさ比重が0.0
2〜0.12g/mLと小さいと、合成樹脂等と混合し
て塗料、人工皮革、合成皮革、成形材料、繊維処理に使
用する場合、コラーゲン重量当たりのそれが占める体積
が大きくなる為、同重量の添加の場合、見掛けかさ比重
の大きな皮革粉等と比較すると、同等の添加効果を得る
ためのコラーゲン粉末の添加量を少なく抑えることが出
来る利点がある。また、コラーゲン粉末の見掛けかさ比
重が0.12g/mLより大きいと、合成樹脂等と混合
して使用する場合、必要とするコラーゲン粉末の添加量
が多くなり、さらに、樹脂溶液中においてコラーゲン粉
末の真比重と樹脂溶液の比重との差によりコラーゲン粉
末が沈降してケーキ状に固まり再分散が困難になり易く
好ましくない。また、見掛けかさ比重が0.02g/m
Lより小さいと、取り扱い時に粉塵が発生し易く、且
つ、樹脂溶液との混合分散が困難になるので好ましくな
い。
The apparent bulk specific gravity of collagen powder is 0.0
When it is as small as 2 to 0.12 g / mL, when it is mixed with a synthetic resin and used for paint, artificial leather, synthetic leather, molding material, and fiber treatment, the volume occupied by the collagen per weight becomes large, so the same. In the case of adding the weight, there is an advantage that the addition amount of the collagen powder for obtaining the same addition effect can be suppressed to be small as compared with leather powder having a large apparent bulk density. Further, if the apparent bulk specific gravity of the collagen powder is larger than 0.12 g / mL, the amount of the collagen powder to be added becomes large when it is used in a mixture with a synthetic resin or the like. The difference between the true specific gravity and the specific gravity of the resin solution causes the collagen powder to settle and harden into a cake, which makes redispersion difficult, which is not preferable. Also, apparent bulk specific gravity is 0.02g / m
If it is smaller than L, dust is likely to be generated during handling and it becomes difficult to mix and disperse it with the resin solution, which is not preferable.

【0008】一方、コラーゲン粉末の吸油度が1.70
〜4.00mL/gの範囲では、合成樹脂等と混合して
使用する場合、樹脂またはその溶液中においてコラーゲ
ン粉末が樹脂や溶剤を吸収して粉末が膨潤し、その真密
度が低下するため沈降が抑制され、更に粉末が沈殿して
も硬い塊状を呈さなくなり、再分散が容易になる効果が
顕著に現れるため非常に好ましい。しかし、吸油度が
1.70mL/g未満の場合には上記の効果が不十分で
あり、コラーゲン粉末の真比重と樹脂溶液の比重との差
によりコラーゲン粉末が沈降してケーキ状に固まり再分
散が困難になるので好ましくない。また、吸油度が4.
00mL/gを越える場合では、合成樹脂溶液中に混合
して塗料、処理剤として使用すると、それらを塗布した
後、乾燥中にコラーゲン粉末が吸収した多量の溶剤を放
出して収縮するため、塗膜がひび割れを起こしたり、平
滑性が失われたりする不都合が生じるので好ましくな
い。
On the other hand, the oil absorption of collagen powder is 1.70.
In the range of up to 4.00 mL / g, when used by mixing with a synthetic resin or the like, the collagen powder absorbs the resin or solvent in the resin or its solution, the powder swells, and the true density of the collagen powder decreases, so that sedimentation occurs. Is suppressed, and even if the powder is precipitated, it does not form a hard lump, and the effect of facilitating re-dispersion remarkably appears, which is very preferable. However, if the oil absorption is less than 1.70 mL / g, the above effect is insufficient, and due to the difference between the true specific gravity of the collagen powder and the specific gravity of the resin solution, the collagen powder settles into a cake and redisperses. Is difficult to do, which is not preferable. Further, the oil absorption is 4.
If it exceeds 100 mL / g, if it is mixed in a synthetic resin solution and used as a paint or treating agent, after applying them, a large amount of solvent absorbed by the collagen powder is released during drying, causing shrinkage. It is not preferable because the film may crack or lose smoothness.

【0009】コラーゲン粉末の性質は使用する用途によ
り最適値が異なるが、一般的には、粒度は正規分布に近
く、平均粒径が4〜25μmであることが好ましい。特
に平均粒径が20μm未満のものが塗料、処理剤中での
分散性がよく、なめらかな塗膜が得られ、ザラツキが発
生しないので使用分野を問わないという理由からより好
ましい。また、得られる粉末は球状の物ばかりではな
く、ロッド状の物が含まれるが、特に短軸/長軸の比が
0.4以下である粒子の含量が3重量%より少ないと、
合成樹脂等と混合して塗料、人工皮革・合成皮革の処理
剤、繊維処理剤として使用する場合、樹脂溶液中におい
てコラーゲン粉末が沈降した時にコラーゲン同士が密に
沈殿してしまいケーキ状に固まり再分散が困難になる不
都合があるが、上記製造方法で得られる本発明のコラー
ゲン粉末は、従来の平均粒径が20μm未満の皮革粉や
コラーゲン粉末と異なり、短軸/長軸の比が0.4以下
である粒子の含量が3重量%以上である為、樹脂溶液中
での保存安定性に優れている。尚、平均粒径と粒度分布
はレザー回折式粒度分布計(日機装(株)製、マイクロ
トラック−II SRA型)を使用し、分散媒にイソプロ
ピルアルコール変性95%エタノールを用いて測定を行
った。また、粉末の短軸/長軸の比の測定は、遮光法式
粒度分布計(ガライ社、CIS−1)を使用し、分散媒
に98%エタノールを用いて測定を行った。
Although the optimum value of the properties of the collagen powder varies depending on the intended use, it is generally preferable that the particle size is close to the normal distribution and the average particle size is 4 to 25 μm. Particularly, those having an average particle diameter of less than 20 μm are more preferable because they have good dispersibility in a coating material and a treating agent, a smooth coating film can be obtained, and no roughness occurs, so that the field of use does not matter. Further, the obtained powder includes not only spherical ones but also rod-like ones, and particularly when the content of particles having a minor axis / major axis ratio of 0.4 or less is less than 3% by weight,
When used as a paint, artificial leather / synthetic leather treatment agent, or fiber treatment agent when mixed with synthetic resin, when the collagen powder settles in the resin solution, the collagen particles are densely settled together and caked again. Although it is difficult to disperse the collagen powder, the collagen powder of the present invention obtained by the above-mentioned production method has a short axis / long axis ratio of 0. 0 unlike the conventional leather powder or collagen powder having an average particle size of less than 20 μm. Since the content of the particles of 4 or less is 3% by weight or more, the storage stability in the resin solution is excellent. The average particle size and the particle size distribution were measured by using a laser diffraction type particle size distribution meter (manufactured by Nikkiso Co., Ltd., Microtrac-II SRA type) and using isopropyl alcohol-modified 95% ethanol as a dispersion medium. In addition, the ratio of the minor axis / major axis of the powder was measured using a light-shielding method particle size distribution meter (Garai Co., CIS-1) and using 98% ethanol as a dispersion medium.

【0010】本発明のコラーゲン粉末は、精製された動
物の皮などの動物組織を水中で分散または溶解、なめし
(安定化)、脱水、造粒、乾燥、粉砕の各処理を順次な
すことにより得られる。ここで用いられる動物組織とし
ては、牛、馬、豚、羊等の哺乳動物をはじめとするあら
ゆる脊椎動物の皮、骨、腱等のコラーゲンを多量に含む
組織が使用出来、精製方法には特に制限はなく、プロテ
アーゼ、リパーゼ系の酵素を1種類または2種類以上使
用する方法、石灰等のアルカリを使用する方法、イオン
性または非イオン性の界面活性剤を使用する方法等など
があるが、上記酵素処理及び界面活性剤処理を併用して
夾雑物をよく取り除いた動物の裸皮を使用することが好
ましい。また、ここで用いられる界面活性剤は、洗浄後
に裸皮中に残存し易いイオン性のものではなく、容易に
洗浄により除去出来る非イオン性のものを使用すること
が好ましい。
The collagen powder of the present invention is obtained by sequentially performing treatments of dispersing or dissolving purified animal tissues such as animal skin in water, tanning (stabilizing), dehydration, granulation, drying and crushing. To be As the animal tissue used here, tissues containing a large amount of collagen such as skins, bones and tendons of all vertebrates including mammals such as cows, horses, pigs and sheeps can be used, and especially for the purification method. There is no limitation, and there are a method of using one or more kinds of protease and lipase type enzyme, a method of using alkali such as lime, a method of using ionic or nonionic surfactant, etc. It is preferable to use the naked skins of animals from which impurities have been thoroughly removed by using the enzyme treatment and the surfactant treatment in combination. Further, the surfactant used here is not an ionic one that easily remains in the bare skin after washing, but it is preferable to use a nonionic one that can be easily removed by washing.

【0011】湿式粉砕による分散または溶解は、湿式粉
砕処理に次いで行われるなめし処理を、容易、且つ、均
質に行うために、精製処理されたコラーゲン塊状物を水
により膨潤し、コラーゲン細繊維の分散物あるいは溶解
物にする処理である。精製された動物組織を、肉挽き機
等を用いて粗く切断した後、水により希釈し、コラーゲ
ン濃度を1〜30重量%、pH2〜8に調整し、水温が
37℃を越えないように注意して、製紙用叩解機、回転
刃解砕機等の機器を用いて行われる。ここでコラーゲン
の濃度が1重量%未満では、湿式粉砕が十分に均一にな
されず、繊維束状の部分の残存が著しく増加し、さら
に、湿式粉砕の効率が大きく低下するので好ましくな
い。また、コラーゲンの濃度が30重量%を越える場合
は、分散液の粘度が高くなり、湿式粉砕時に水温が上昇
して37℃以上となってしまい、コラーゲンの加水分解
が起こるので、粉砕速度を遅くする等の措置が必要とな
り、粉砕の効率が著しく低下するので好ましくない。
Dispersion or dissolution by wet pulverization is carried out by swelling the purified collagen lumps with water to disperse the collagen fine fibers in order to easily and uniformly carry out the tanning treatment which follows the wet pulverization treatment. It is a process of making a substance or a dissolved substance. After the purified animal tissue is roughly cut using a meat grinder etc., it is diluted with water to adjust the collagen concentration to 1 to 30% by weight and pH 2 to 8 and be careful not to let the water temperature exceed 37 ° C. Then, it is carried out using equipment such as a beater for papermaking, a rotary blade crusher, and the like. Here, if the collagen concentration is less than 1% by weight, wet pulverization is not sufficiently uniformed, the remaining fiber-bundle-like portions are significantly increased, and the efficiency of wet pulverization is greatly reduced, which is not preferable. If the collagen concentration exceeds 30% by weight, the viscosity of the dispersion becomes high, the water temperature rises to 37 ° C or higher during wet pulverization, and hydrolysis of collagen occurs. However, it is not preferable because the crushing efficiency is significantly reduced.

【0012】このときのpHは、2〜8の範囲内でこれ
を選ぶことにより、最終的に得られるコラーゲン粉末の
形状を決定し、さらには、見掛けかさ比重等の物性を決
めることが出来る。即ち、pH2〜8の範囲内でpHを
高くするとコラーゲンは繊維状分散物となって、得られ
る粉末の見掛けかさ比重は低くなり、pHを低くすると
コラーゲンは強膨潤物または溶解物となって、得られる
粉末の見掛けかさ比重を高くすることが出来る。但し、
pH2未満またはpH8を越えると、湿式粉砕処理時に
コラーゲンの加水分解が起こり易くなるので好ましくな
い。ここでpHを調整する為に用いられる酸、アルカリ
は、一般に用いられているものでよく、酸としては、塩
酸、硫酸等の鉱酸、酢酸、乳酸、クエン酸、酒石酸、コ
ハク酸、リンゴ酸等の有機酸のいずれでもよく、アルカ
リとしては、水酸化ナトリウム、重炭酸ナトリウム、ア
ンモニア水、有機アミン類等が使用出来る。
At this time, by selecting the pH within the range of 2 to 8, the shape of the collagen powder finally obtained can be determined, and further, the physical properties such as apparent bulk specific gravity can be determined. That is, when the pH is increased within the range of pH 2 to 8, collagen becomes a fibrous dispersion, and the apparent bulk specific gravity of the obtained powder becomes low, and when the pH is lowered, collagen becomes a strongly swollen material or a dissolved material. The apparent bulk specific gravity of the obtained powder can be increased. However,
When the pH is less than 2 or more than 8, the hydrolysis of collagen tends to occur during the wet pulverization treatment, which is not preferable. The acid and alkali used for adjusting the pH here may be those commonly used, and examples of the acid include mineral acids such as hydrochloric acid and sulfuric acid, acetic acid, lactic acid, citric acid, tartaric acid, succinic acid and malic acid. Any of the above organic acids may be used, and as the alkali, sodium hydroxide, sodium bicarbonate, aqueous ammonia, organic amines and the like can be used.

【0013】なめし処理は、コラーゲンの耐熱安定性を
高める目的で、コラーゲン繊維の分散物或いは溶解物に
なめし剤を加えて、繊維間或いは分子間になめし剤を沈
着させるか、繊維間或いは分子間を結び付ける処理であ
る。なめし剤としては、硫酸クロム、硫酸ジルコニル、
硫酸アルミニウム等の多価金属化合物が挙げられるが、
これらの他に、ホルムアルデヒド、グルタルアルデヒ
ド、タンニン等の有機化合物なめし剤を併用することも
可能である。なめし剤の主剤に多価金属なめし剤を用い
ることにより、コラーゲンの熱変性温度をかなり上昇さ
せることが可能となるので、後工程の脱水・乾燥におい
て高い温度を用いることが出来、これらの工程の効率化
を図ることが出来る様になる。また、なめし工程におい
て、二酸化チタン、酸化鉄等の顔料やカオリン、シリカ
等の体質顔料を添加して着色したり、硬さを調整したコ
ラーゲン粉末を得ることも可能である。
The tanning treatment is carried out by adding a tanning agent to a collagen fiber dispersion or melt to deposit a tanning agent between the fibers or between the molecules, or between the fibers or between the molecules, for the purpose of enhancing the heat resistance stability of collagen. Is the process of connecting. As a tanning agent, chromium sulfate, zirconyl sulfate,
Examples include polyvalent metal compounds such as aluminum sulfate,
In addition to these, it is also possible to use an organic compound tanning agent such as formaldehyde, glutaraldehyde or tannin together. By using a polyvalent metal tanning agent as the main component of the tanning agent, it is possible to considerably raise the thermal denaturation temperature of collagen, so that it is possible to use a high temperature in the dehydration / drying in the subsequent step, and You will be able to improve efficiency. Further, in the tanning step, pigments such as titanium dioxide and iron oxide and extender pigments such as kaolin and silica may be added for coloring, or collagen powder having adjusted hardness may be obtained.

【0014】脱水処理は、なめし処理で得られたコラー
ゲン凝集物の水分含有率を下げ、乾燥を容易にする目的
で、遠心分離機、フィルタープレス機、スクリュープレ
ス機等を使用して行われる。脱水後のコラーゲン湿体の
形状は、不定形の繊維状の塊となる。脱水処理はpH4
〜8の範囲にpHを調整して行うが、これは、pH4未
満、または、pH8を越えると、乾燥時の加熱によるコ
ラーゲンの加水分解が起こり易くなり、粉砕後のコラー
ゲン粉末の物性の低下を招くためである。さらに脱水時
の安定化コラーゲン湿体の温度には特に制限はないが、
約70℃程度まで加温すると、コラーゲン湿体の凝集が
起こり、保持している水分の一部を吐き出し、脱水効率
が上昇するので好ましい。但し、使用したなめし剤の種
類・量により決まるコラーゲン湿体の熱変性温度以上へ
の加温は、コラーゲンの加水分解を引き起こすので避け
なければならない。
The dehydration treatment is carried out by using a centrifuge, a filter press machine, a screw press machine or the like for the purpose of lowering the water content of the collagen aggregate obtained by the tanning treatment and facilitating the drying. The shape of the wet collagen body after dehydration becomes an amorphous fibrous mass. PH 4 for dehydration
The pH is adjusted within the range of ~ 8. When the pH is less than 4 or more than 8, the hydrolysis of collagen due to heating during drying is likely to occur, and the deterioration of the physical properties of the collagen powder after crushing may occur. This is to invite. Furthermore, the temperature of the stabilized collagen wet body during dehydration is not particularly limited,
It is preferable to heat up to about 70 ° C. because coagulation of the collagen wet body occurs, a part of the retained water is discharged, and the dehydration efficiency is increased. However, heating above the heat denaturation temperature of the collagen wet body, which is determined by the type and amount of the tanning agent used, causes hydrolysis of collagen and must be avoided.

【0015】造粒処理は、脱水処理で繊維状の塊となっ
た安定化コラーゲン湿体の、コラーゲンの繊維状部分の
保護と後工程の乾燥・粉砕における効率化を図る目的で
行われる。尚、ここで言う造粒とは、脱水後に不定形の
繊維状の塊となっているコラーゲン湿体を転動型、振動
型、圧縮成形型、流動型、解砕型、機械工作型、押し出
し型等の造粒機器を用いて、表面に微細なコラーゲン繊
維が出ていない、粒状・顆粒状・ペレット状等の一定の
形に造形する事を言う。
The granulation treatment is carried out for the purpose of protecting the fibrous portion of collagen in the stabilized collagen wet body which has become a fibrous mass by the dehydration treatment and improving the efficiency in the drying and crushing in the subsequent step. The term "granulation" here means rolling collagen, vibrating mold, compression mold, fluid mold, crushing mold, machine working mold, and extruding a collagen wet body that has become an indefinite fibrous mass after dehydration. Using a granulating machine such as a mold, it refers to molding into a certain shape such as granules, granules, pellets, etc., where fine collagen fibers do not appear on the surface.

【0016】さらに詳しくは、造粒前の繊維状のコラー
ゲン湿体は、肉眼等では単なる糸状にしか見えない繊維
がランダムに絡み合った状態であり、その糸状の表面に
は微細なコラーゲンファイバー(微細なコラーゲン繊
維)が突出している状態である。造粒後の繊維状のコラ
ーゲンは、表面外観として、造形体の表面に微細なコラ
ーゲン繊維が出ていない形状に造形されており、ランダ
ムに絡み合った繊維を全体として一定の形状にそろえた
(配向させた)ものである。またその造形体の内部にコ
ラーゲンの繊維状部分、特にコラーゲンファイバー(微
細なコラーゲン繊維)部分を保持するものである。
[0016] More specifically, the fibrous collagen wet body before granulation is a state in which fibers that only look like a mere thread to the naked eye are randomly entangled, and fine collagen fibers (fine Collagen fibers) are protruding. The fibrous collagen after granulation has a surface appearance that is formed into a shape in which fine collagen fibers do not appear on the surface of the shaped body, and randomly entangled fibers are arranged in a certain shape as a whole (orientation). I made it). In addition, it holds a fibrous portion of collagen, particularly a collagen fiber (fine collagen fiber) portion inside the molded body.

【0017】実際には、脱水後の繊維状の安定化コラー
ゲン湿体を転動型、振動型、圧縮成形型、流動型、解砕
型、機械工作型、押し出し型等の造粒機器を用いて、粒
状、顆粒状の場合は粒子の直径が1. 0〜10. 0mm
の範囲となる様に造粒し、ペレット状の場合にはペレッ
トの直径が1. 0〜10. 0mm、長さが1. 0〜3
0. 0mmの範囲となる様に造粒することによってなさ
れるものである。粒状、顆粒状の場合、粒径を1. 0m
m未満としようとすると、造粒時の発熱によりコラーゲ
ン湿体が熱変性温度以上に加温され、コラーゲンの加水
分解を引き起こす可能性がある上に、造粒工程での生産
性が著しく悪くなる不都合がある。
In practice, the fibrous stabilized collagen wet body after dehydration is used in a granulating machine such as a rolling type, a vibration type, a compression type, a flow type, a crushing type, a machine working type and an extrusion type. In the case of granules or granules, the diameter of the particles is 1.0 to 10.0 mm.
Granulate so that it is in the range of, and in the case of pellets, the diameter of the pellet is 1.0 to 10.0 mm, and the length is 1.0 to 3.
It is made by granulating so as to have a range of 0.0 mm. In the case of granules or granules, the particle size is 1.0m
If it is less than m, the heat generated during granulation heats the wet collagen body to a temperature higher than the heat denaturation temperature, which may cause hydrolysis of collagen, and the productivity in the granulation process is significantly deteriorated. There is inconvenience.

【0018】また、粒径が10. 0mmを越える範囲で
造粒を行った場合、安定化コラーゲン湿体の繊維状部分
を十分に保護する事が出来なくなる等の不都合があり、
さらに、後工程の乾燥、粉砕、特に粉砕工程における粉
砕効率が低くなり、生産性が低化する不都合がある。ペ
レット状の場合、粒径が1. 0mm未満、または、長さ
が1. 0mm未満の範囲に造形しようとすると、造粒時
の発熱によりコラーゲン湿体が熱変性温度以上に加温さ
れ、コラーゲンの加水分解を引き起こす可能性がある上
に、造粒工程での生産性が著しく悪くなる不都合があ
る。また、粒径10. 0mmを越えるか、または、長さ
30.0mmを越える範囲では安定化コラーゲン湿体の
繊維状部分を十分に保護する事が出来なくなる等の不都
合があり、また後工程の乾燥、粉砕、特に粉砕工程にお
ける粉砕効率が低くなり、生産性が低くなる不都合があ
る。
Further, when the granulation is carried out in the range where the particle size exceeds 10.0 mm, there is a disadvantage that the fibrous part of the stabilized collagen wet body cannot be sufficiently protected.
Furthermore, there is a disadvantage that the efficiency of pulverization in the subsequent steps of drying and pulverization, particularly in the pulverization step, becomes low, resulting in low productivity. In the case of pellets, if the particle size is less than 1.0 mm or if the length is less than 1.0 mm, the heat generated during granulation heats the collagen wet body to a temperature higher than the heat denaturation temperature. In addition to the possibility of causing hydrolysis, the productivity of the granulation process is significantly deteriorated. Further, if the particle size exceeds 10.0 mm or the length exceeds 30.0 mm, there is an inconvenience such that the fibrous portion of the stabilized collagen wet body cannot be sufficiently protected, and the post-process Drying and crushing, especially crushing efficiency in the crushing process is lowered, and there is a disadvantage that productivity is lowered.

【0019】乾燥処理は、脱水処理で繊維状の塊となっ
た安定化コラーゲンを粒状、顆粒状、ペレット状等に造
粒したものの水分率をさらに下げて、粉砕処理を容易に
する目的で、流動式、棚段式、ベルト式、パドル式等の
乾燥機を用いて通常の方法によりなされる。粉砕処理を
するためには、水分率は10重量%以下とすることが望
ましい。粉砕処理は、乾燥処理で得られたコラーゲン塊
を塗料、合成皮革、人工皮革、成型材料、繊維処理等の
実用に適した粒子径とする目的で通常のジェットミル、
ハンマーミル、ボールミル等を使用してなされる。
The drying treatment is carried out for the purpose of facilitating the pulverization treatment by further lowering the moisture content of the stabilized collagen which has been formed into fibrous masses by the dehydration treatment and granulated into granules, granules or pellets. It is carried out by an ordinary method using a dryer such as a fluid type, a tray type, a belt type and a paddle type. In order to carry out the pulverization treatment, it is desirable that the water content is 10% by weight or less. The crushing treatment is an ordinary jet mill for the purpose of making the collagen mass obtained by the drying treatment a particle size suitable for practical use such as paint, synthetic leather, artificial leather, molding material, and fiber treatment.
It is made using a hammer mill, ball mill, etc.

【0020】[0020]

【作用】本発明により、得られるコラーゲン粉末は、特
にポリウレタン樹脂、ポリエステル樹脂、ポリアクリル
樹脂、ポリ塩化ビニル樹脂等の合成樹脂をベースとする
塗料、人工皮革、成型材料に混合して使用するのに有用
であり、天然皮革様の外観、感触、吸放湿性等の機能を
持った塗料、人工皮革、成型材料を得ることができ、
又、繊維に合成樹脂をバインダーとしてコーティングま
たはラミネートする事によって、優れた吸放湿特性、結
露防止性能を付与することが出来る。例えば、塗料にお
いては、ポリウレタン樹脂塗料をベースにコラーゲン粉
末を塗料固形分100部に対し10〜150重量部を加
えてよく混合分散し、必要に応じて溶剤を加えて適当な
濃度にすることにより調製され、これをスプレーガン、
コーター等により塗工、乾燥して使用される。人工皮革
においては、ポリウレタン樹脂100重量部に対してコ
ラーゲン粉末を10〜150重量部加えて混練し、これ
をポリ塩化ビニルシートや不織布シートに貼り合わせて
使用される。
The collagen powder obtained according to the present invention is used by being mixed with paints, artificial leather and molding materials based on synthetic resins such as polyurethane resin, polyester resin, polyacrylic resin and polyvinyl chloride resin. It is useful for, and it is possible to obtain a paint, artificial leather, molding material having functions such as natural leather-like appearance, touch, moisture absorption and release,
Further, by coating or laminating fibers with a synthetic resin as a binder, it is possible to impart excellent moisture absorption / release characteristics and dew condensation prevention performance. For example, in a paint, by adding 10 to 150 parts by weight of collagen powder based on polyurethane resin paint to 100 parts of the paint solid content and thoroughly mixing and dispersing, a solvent is added as necessary to obtain an appropriate concentration. Prepared, spray gun,
It is used after being coated with a coater and dried. In the case of artificial leather, 10 to 150 parts by weight of collagen powder is added to 100 parts by weight of a polyurethane resin, and the mixture is kneaded, and this is used by being attached to a polyvinyl chloride sheet or a non-woven fabric sheet.

【0021】また成形材料は、人工皮革と同様にポリウ
レタン樹脂100重量部に対し10〜150重量部を加
えて混練し押し出し機等により成形されて使用される。
さらに繊維処理においては、アクリル樹脂処理剤中にコ
ラーゲン粉末を樹脂固形分100部に対して10〜50
重量部添加して混合分散し、繊維織布または不織布上に
コーター等で塗工、乾燥して使用される。これらはいず
れも天然皮革と同様の優れた外観、感触、並びに吸放湿
の性能を持つ。
The molding material is used by adding 10 to 150 parts by weight to 100 parts by weight of the polyurethane resin, kneading the mixture and molding it with an extruder or the like, as in the artificial leather.
Further, in the fiber treatment, the collagen powder is added to the acrylic resin treating agent in an amount of 10 to 50 with respect to 100 parts of the resin solid content.
Parts by weight are added, mixed and dispersed, coated on a fiber woven or non-woven fabric with a coater or the like, dried and used. All of these have the same excellent appearance, feel, and moisture absorption / release properties as natural leather.

【0022】[0022]

【実施例】 本発明を以下の実施例によりさらに詳しく
説明する。 実施例1 1)精製及び湿式粉砕 石灰によるアルカリ処理後、水洗された牛の床皮500
重量部(乾量は100重量、以下重量部は部と省略す
る)を重炭酸ナトリウムによりpH8.1に調整した下
記の処理液に漬け、 パパイン 0.60部 パンクレアチン 0.15部 L−グルタミン酸 0.35部 コンドロイチン硫酸ナトリウム 0.003部 L−酒石酸水素カリウム 0.35部 トリトンX−100 * 0.50部 水 5000部 *;非イオン性界面活性剤(ポリオキシエチレンーアル
キルフェニルエーテルの商品名)
EXAMPLES The present invention will be described in more detail by the following examples. Example 1 1) Purification and Wet Grinding Beef floor skin 500 washed with water after alkaline treatment with lime
1 part by weight (100 parts by weight of dry weight, hereinafter abbreviated as parts by weight) is soaked in the following treatment solution adjusted to pH 8.1 with sodium bicarbonate, papain 0.60 part pancreatin 0.15 part L-glutamic acid 0.35 parts Sodium chondroitin sulfate 0.003 parts L-potassium hydrogen tartrate 0.35 parts Triton X-100 * 0.50 parts Water 5000 parts *; nonionic surfactant (commodity of polyoxyethylene-alkylphenyl ether Name)

【0023】家庭用洗濯機にて室温下で12時間かき混
ぜて夾雑物を除去し、さらに水洗した後、乳酸を添加し
てpH4.0に調整し、得られた精製コラーゲン組織を
肉挽機を用いてミンチ状とし、これを原床皮の乾量重量
濃度が12.5%となるように水で希釈し、重炭酸ナト
リウムにてpH7.3に調整し、製紙用叩解機を用いて
水温20℃で湿式粉砕した。
After stirring for 12 hours at room temperature in a domestic washing machine to remove impurities and washing with water, lactic acid was added to adjust the pH to 4.0, and the obtained purified collagen tissue was crushed with a meat grinder. Using minced meat, dilute it with water so that the dry weight concentration of the original floor skin is 12.5%, adjust the pH to 7.3 with sodium bicarbonate, and use the beating machine for papermaking to control the water temperature. Wet milling was performed at 20 ° C.

【0024】2)なめし処理 湿式粉砕後、家庭用ミキサーを用いて、次にあげるなめ
し剤を順次加えて、 塩基性硫酸アルミニウム 4.5部 硫酸ジルコニル 2.5部 なめし処理をし、安定化コラーゲン湿体を得た。
2) Tanning treatment After wet pulverization, the following tanning agents were sequentially added using a household mixer to give basic aluminum sulfate 4.5 parts zirconyl sulfate 2.5 parts tanning treatment to stabilize collagen. A wet body was obtained.

【0025】3)脱水、造粒、乾燥、粉砕 なめし処理して得られた安定化コラーゲン湿体をpH
5.3で、スクリュウープレス脱水機を用いて水分率が
69重量%になるまで脱水した。得られた繊維状のコラ
ーゲン湿体を、押し出し式造粒機で粒径約3mm、長さ
約10mmに造粒した後、熱風棚段式乾燥機を用いて1
05℃で15時間乾燥して、水分率を1.2重量%と
し、さらにハンマーミルを用いて粉砕した。
3) pH of the stabilized collagen wet body obtained by dehydration, granulation, drying and crushing tanning treatment
At 5.3, it was dehydrated using a screw press dehydrator until the water content became 69% by weight. The obtained fibrous collagen wet body was granulated with an extrusion type granulator to a particle size of about 3 mm and a length of about 10 mm, and then 1 using a hot air tray type dryer.
It was dried at 05 ° C. for 15 hours to a water content of 1.2% by weight, and further pulverized using a hammer mill.

【0026】実施例2 1)精製及び湿式粉砕 石灰によるアルカリ処理後、水洗された牛の床皮500
部(乾量は100部)を重炭酸ナトリウムによりpH
8.1に調整した下記の処理液に漬け、 パパイン 0.60部 パンクレアチン 0.15部 L−グルタミン酸 0.35部 コンドロイチン硫酸ナトリウム 0.003部 L−酒石酸水素カリウム 0.35部 トリトンX−100 * 0.50部 水 5000部 *;非イオン性界面活性剤(ポリオキシエチレンーアル
キルフェニルエーテルの商品名)
Example 2 1) Purification and wet grinding Cattle floor skin 500 washed with water after alkaline treatment with lime 500
PH (100 parts by dry weight) with sodium bicarbonate
Soaked in the following treatment solution adjusted to 8.1, papain 0.60 part Pancreatin 0.15 part L-glutamic acid 0.35 part Chondroitin sodium sulfate 0.003 part L-potassium hydrogen tartrate 0.35 part Triton X- 100 * 0.50 parts Water 5000 parts *; Nonionic surfactant (trade name of polyoxyethylene-alkyl phenyl ether)

【0027】家庭用洗濯機にて室温下で12時間かき混
ぜて夾雑物を除去し、さらに水洗した後、酢酸を添加し
てpH4.0に調整して得られた精製コラーゲン組織を
肉挽機を用いてミンチ状とし、これを原床皮の乾量重量
濃度が12.5%となるように水で希釈し、重炭酸ナト
リウムにてpHを7.3に調整し、製紙用叩解機を用い
て水温20℃で湿式粉砕した
The mixture was stirred at room temperature for 12 hours in a household washing machine to remove impurities, washed with water, adjusted to pH 4.0 by adding acetic acid, and the purified collagen tissue obtained was subjected to a meat grinder. Using minced meat, dilute it with water so that the dry weight concentration of the original floor skin is 12.5%, adjust the pH to 7.3 with sodium bicarbonate, and use a beating machine for papermaking. Wet pulverized at a water temperature of 20 ° C

【0028】2)なめし処理 湿式粉砕後、家庭用ミキサーを用い、下記のなめし剤を
順次加えて、 塩基性硫酸アルミニウム 4.5部 硫酸ジルコニル 2.5部 なめし処理をし、安定化コラーゲン湿体を得た。
2) Tanning Treatment After wet pulverization, the following tanning agents were sequentially added using a domestic mixer to add 4.5 parts of basic aluminum sulfate, 2.5 parts of zirconyl sulfate, and 2.5 parts of tanning treatment to obtain a stabilized collagen wet body. Got

【0029】3)脱水、造粒、乾燥、粉砕 なめし処理して得られた安定化コラーゲン湿体をpH
5.3で、遠心分離脱水機を用いて水分率が69重量%
になるまで脱水した。得られた繊維状のコラーゲン湿体
を、解砕型造粒機をもちいて粒径10mmに繊維状のコ
ラーゲン湿体を解砕して造粒し、その後、熱風棚段式乾
燥機を用いて105℃で15時間乾燥して、水分率を
1.2重量%とし、さらにボールミルを用いて粉砕し
た。
3) pH of the stabilized collagen wet body obtained by dehydration, granulation, drying and crushing tanning treatment
At 5.3, the water content was 69% by weight using a centrifugal dehydrator.
I dehydrated until. The obtained fibrous collagen wet body was granulated by using a disintegrating type granulator to disintegrate the fibrous collagen wet body to a particle size of 10 mm, and then using a hot-air tray dryer. It was dried at 105 ° C. for 15 hours to a water content of 1.2% by weight, and further pulverized using a ball mill.

【0030】比較例1 1)精製および湿式粉砕処理 石灰によるアルカリ処理後水洗された牛の床皮500部
(乾量は100部)を重炭酸ナトリウムによりpHを
8.1に調整した下記の処理液に漬け、 パパイン 0.60部 パンクレアチン 0.15部 L−グルタミン酸 0.35部 コンドロイチン硫酸ナトリウム 0.003部 L−酒石酸水素カリウム 0.35部 トリトンX−100 * 0.50部 水 5000部 *;非イオン性界面活性剤(ポリオキシエチレンーアル
キルフェニルエーテルの商品名)
Comparative Example 1 1) Purification and wet grinding treatment 500 parts (dry weight 100 parts) of beef bark washed with water after alkaline treatment with lime was adjusted to pH 8.1 with sodium bicarbonate, and the following treatment was carried out. Soak in liquid, papain 0.60 parts Pancreatin 0.15 parts L-glutamic acid 0.35 parts Chondroitin sulfate sodium 0.003 parts L-potassium hydrogen tartrate 0.35 parts Triton X-100 * 0.50 parts water 5000 parts *; Nonionic surfactant (trade name of polyoxyethylene-alkyl phenyl ether)

【0031】家庭用洗濯機にて室温下で12時間かき混
ぜて夾雑物を除去し、さらに水洗した後、5%塩酸を添
加してpH3.5に調整して得られた精製コラーゲン組
織を肉挽機を用いてミンチ状とし、これを原床皮の乾量
重量濃度が3.5%となるように水で希釈し(pH4.
0)、製紙用叩解機を用いて水温25℃で湿式粉砕し
た。
Stir at room temperature for 12 hours in a domestic washing machine to remove impurities, wash with water, adjust pH to 3.5 by adding 5% hydrochloric acid, and crush the meat obtained. Using a machine, mince it and dilute it with water so that the dry weight concentration of the original floor skin is 3.5% (pH 4.
0), wet milling was performed at a water temperature of 25 ° C. using a beating machine for papermaking.

【0032】2)なめし処理 湿式粉砕後、家庭用ミキサーを用いて、下記のなめし剤
を順次加えて、 塩基性硫酸アルミニウム 4.5部 硫酸ジルコニル 2.5部 なめし処理をし、安定化コラーゲン湿体を得た。
2) Tanning Treatment After wet pulverization, the following tanning agents were sequentially added using a household mixer to make basic aluminum sulfate 4.5 parts zirconyl sulfate 2.5 parts tanning treatment to stabilize collagen moisture. Got the body

【0033】3)脱水、乾燥、粉砕処理 なめし処理して得られた安定化コラーゲン湿体を炭酸ナ
トリウムを用いてpH6.0に調整したのち、フィルタ
ープレス脱水機を用いて水分率が67重量%になるまで
脱水した後に、流動式乾燥機を用いて乾燥して、水分率
を9.5重量%とし、さらに、ハンマーミルを用いて粉
砕し表1に示す物性値を持ったコラーゲン粉末とした。
3) Dehydration, drying and pulverization treatment The stabilized collagen wet body obtained by tanning treatment was adjusted to pH 6.0 with sodium carbonate, and then the moisture content was 67% by weight using a filter press dehydrator. It was dehydrated until it became, and then dried using a fluid-type dryer to a moisture content of 9.5% by weight, and further pulverized using a hammer mill to obtain a collagen powder having the physical properties shown in Table 1. .

【0034】比較例2 1)精製および湿式粉砕処理 石灰によるアルカリ処理後水洗された牛の床皮500部
(乾量は100部)を重炭酸ナトリウムによりpHを
8.1に調整した下記の処理液に漬け、 パパイン 0.60部 パンクレアチン 0.15部 L−グルタミン酸 0.35部 コンドロイチン硫酸ナトリウム 0.003部 L−酒石酸水素カリウム 0.35部 トリトンX−100 * 0.50部 水 5000部 *;非イオン性界面活性剤(ポリオキシエチレンーアル
キルフェニルエーテルの商品名)
Comparative Example 2 1) Purification and wet pulverization treatment 500 parts (dry weight: 100 parts) of beef bark washed with water after alkali treatment with lime was adjusted to pH 8.1 with sodium bicarbonate, and then treated as follows. Soak in liquid, papain 0.60 parts Pancreatin 0.15 parts L-glutamic acid 0.35 parts Chondroitin sulfate sodium 0.003 parts L-potassium hydrogen tartrate 0.35 parts Triton X-100 * 0.50 parts water 5000 parts *; Nonionic surfactant (trade name of polyoxyethylene-alkyl phenyl ether)

【0035】家庭用洗濯機にて室温下で12時間かき混
ぜて夾雑物を除去し、さらに水洗した後、乳酸を添加し
てpH4.0に調整して得られた精製コラーゲン組織を
肉挽機を用いてミンチ状とし、これを原床皮の乾量重量
濃度が12.5%となるように水で希釈し、重炭酸ナト
リウムにてpHを7.3に調整してコラーゲン繊維を析
出させ、製紙用叩解機を用いて水温20℃で湿式粉砕し
た。
The mixture was stirred at room temperature for 12 hours in a household washing machine to remove impurities, washed with water, adjusted to pH 4.0 by adding lactic acid, and the purified collagen tissue obtained was fed to a meat grinder. It is made into a minced form, diluted with water so that the dry weight concentration of primordial bark is 12.5%, the pH is adjusted to 7.3 with sodium bicarbonate to precipitate collagen fibers, It was wet-milled at a water temperature of 20 ° C. using a beating machine for papermaking.

【0036】2)なめし処理 湿式粉砕後、家庭用ミキサーを用いて、下記のなめし剤
を順次加えて、 塩基性硫酸アルミニウム 4.5部 硫酸ジルコニル 2.5部 なめし処理をし、安定化コラーゲン湿体を得た。
2) Tanning Treatment After wet pulverization, the following tanning agents were sequentially added using a household mixer to make basic aluminum sulfate 4.5 parts zirconyl sulfate 2.5 parts tanning treatment to stabilize collagen moisture. Got the body

【0037】3)脱水、乾燥、粉砕処理 なめし処理して得られた安定化コラーゲン湿体を5%水
酸化ナトリウムを用いてpH5.3でスクリュウプレス
脱水機を用いて水分率が69重量%になるまで脱水した
後、熱風棚段式乾燥機を用いて乾燥して水分率を1.2
重量%とし、さらに、ハンマーミルを用いて粉砕し表1
に示す物性値を持ったコラーゲン粉末とした。
3) Dehydration, drying and pulverization treatment The stabilized collagen wet body obtained by tanning treatment was adjusted to a water content of 69% by weight with a screw press dehydrator at pH 5.3 using 5% sodium hydroxide. After dehydration until it becomes dry, it is dried using a hot-air tray dryer to obtain a moisture content of 1.2.
Weight% and crushed with a hammer mill.
Collagen powder having the physical properties shown in (1) was used.

【0038】応用試験例 実施例1、2および比較例1、2において得られたコラ
ーゲン粉末をそれぞれ用いて下記のようにA.塗料、
B.人工皮革、C.成形材料、D.透湿防水布に応用
し、表1に示された項目の試験を実施して表1の結果を
得た。
Application Test Examples Using the collagen powders obtained in Examples 1 and 2 and Comparative Examples 1 and 2, respectively, the following A. paint,
B. Artificial leather, C.I. Molding material, D.I. The test of the items shown in Table 1 was carried out by applying it to a moisture-permeable waterproof cloth, and the results of Table 1 were obtained.

【0039】A.塗料 アクリル樹脂100部を酢酸ブチル300部に溶解した
樹脂溶液にコラーゲン粉末50部を加え、よく分散して
クリヤー塗料とした。この塗料をスプレーガンを用い
て、乾燥後の塗膜層の厚さが50μmになるように白色
のポリカーボネート板の表面に塗布し、60℃で30分
間乾燥した。
A. Paint 50 parts of collagen powder was added to a resin solution prepared by dissolving 100 parts of acrylic resin in 300 parts of butyl acetate and well dispersed to obtain a clear paint. This paint was applied to the surface of a white polycarbonate plate using a spray gun so that the thickness of the coating film layer after drying was 50 μm, and dried at 60 ° C. for 30 minutes.

【0040】B.人工皮革 ポリウレタン樹脂100部をメチルエチルケトン:DM
F(1:1)400部に溶解した樹脂溶液にコラーゲン
粉末50部及びカーボンブラック8部を加え、よく分散
して表面処理剤とした。この処理剤をナイフコーターを
用いて、乾燥後の塗膜層の厚さが20μmになるように
シボを付けた離型紙の表面に塗布して乾燥し、さらにそ
の上に接着層を設けて不織布シートに貼りつけて人工皮
革とした。
B. Artificial leather 100 parts of polyurethane resin is methyl ethyl ketone: DM
To a resin solution dissolved in 400 parts of F (1: 1), 50 parts of collagen powder and 8 parts of carbon black were added and well dispersed to obtain a surface treating agent. Using a knife coater, this treatment agent is applied to the surface of release paper having a texture so that the thickness of the coating layer after drying is 20 μm and dried, and an adhesive layer is further provided thereon to form a nonwoven fabric. It was attached to a sheet to make artificial leather.

【0041】C.成形材料 塩化ビニル樹脂200部にコラーゲン粉末50部及びカ
ーボンブラック8部を加え、よく混練りした後、溶融成
形機によりシート状押し出し、シート状成形物とした。
C. Molding Material To 200 parts of vinyl chloride resin, 50 parts of collagen powder and 8 parts of carbon black were added and kneaded well, and then extruded into a sheet by a melt molding machine to obtain a sheet-shaped molding.

【0042】D.透湿防水布 透湿性ウレタン樹脂100部をメチルエチルケトン:D
MF(1:1)300部に溶解した樹脂溶液にコラーゲ
ン粉末30部を加え、よく分散して処理剤とした。この
処理剤をナイフコーターを用いて、乾燥後の塗膜層の厚
さが20μmになるように離型紙の表面に塗布して乾燥
し、さらにその上に接着層を設けてナイロンタフタにラ
ミネートし、透湿防水布とした。
D. Breathable waterproof cloth 100 parts of breathable urethane resin with methyl ethyl ketone: D
30 parts of collagen powder was added to a resin solution dissolved in 300 parts of MF (1: 1) and well dispersed to obtain a treating agent. Using a knife coater, this treating agent is applied to the surface of the release paper so that the thickness of the coating film after drying is 20 μm and dried, and an adhesive layer is further provided on the release paper and laminated on nylon taffeta. , A breathable waterproof cloth.

【0043】[0043]

【表1】 [Table 1]

【0044】表1の結果から、本発明の方法により製造
されたコラーゲン粉末は、従来の方法により製造された
コラーゲン粉末と比較して、いずれの基材への使用によ
っても、外観、感触、吸放湿等の性能の改質性が高いこ
とが示されている。
From the results shown in Table 1, the collagen powder produced by the method of the present invention, compared to the collagen powder produced by the conventional method, can be used in any base material in appearance, feel and absorption. It has been shown that the performance of reforming performance such as moisture release is high.

【0045】[0045]

【発明の効果】本発明により、得られた高性能のコラー
ゲン粉末を用いた場合、塗料、人工皮革、合成皮革、成
形材料、繊維等のいずれの応用によっても外観、感触、
吸放湿性等の性能の優れた材料が得られる。
According to the present invention, when the high-performance collagen powder obtained is used, the appearance, feel, and appearance can be obtained by any application such as paint, artificial leather, synthetic leather, molding material, and fiber.
A material having excellent performance such as moisture absorption / release is obtained.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 見掛けかさ比重が0.02〜0.12g
/mLで、吸油度が1.70〜4.00mL/gであ
り、平均粒径が20μm未満のコラーゲン粉末であっ
て、且つ、粉末の短軸/長軸の比が0.4以下である粒
子の含量が3重量%以上であることを特徴とするコラー
ゲン粉末。
1. Apparent bulk specific gravity of 0.02 to 0.12 g
/ ML, the oil absorption is 1.70 to 4.00 mL / g, the average particle size is a collagen powder having a particle size of less than 20 μm, and the ratio of the short axis / the long axis of the powder is 0.4 or less. Collagen powder characterized in that the content of particles is 3% by weight or more.
JP21882293A 1993-09-02 1993-09-02 Collagen powder Pending JPH0770600A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21882293A JPH0770600A (en) 1993-09-02 1993-09-02 Collagen powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21882293A JPH0770600A (en) 1993-09-02 1993-09-02 Collagen powder

Publications (1)

Publication Number Publication Date
JPH0770600A true JPH0770600A (en) 1995-03-14

Family

ID=16725896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21882293A Pending JPH0770600A (en) 1993-09-02 1993-09-02 Collagen powder

Country Status (1)

Country Link
JP (1) JPH0770600A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006016381A (en) * 2004-06-04 2006-01-19 Katsumi Koide Method for processing collagen
WO2009066635A1 (en) * 2007-11-21 2009-05-28 Kaneka Corporation Permeable film and method for producing the same
JP2015213675A (en) * 2014-05-12 2015-12-03 多木化学株式会社 Soluble collagen fiber porous body
JP2015213676A (en) * 2014-05-12 2015-12-03 多木化学株式会社 Collagen fiber crosslinked porous body
JP2017222633A (en) * 2016-02-15 2017-12-21 モダン メドウ,インコーポレイテッド Method for making bio-fabricated material containing collagen fibrils
EP3704202A4 (en) * 2019-01-17 2020-12-16 Modern Meadow, Inc. Layered collagen materials and methods of making the same
US11214844B2 (en) 2017-11-13 2022-01-04 Modern Meadow, Inc. Biofabricated leather articles having zonal properties
US11913166B2 (en) 2015-09-21 2024-02-27 Modern Meadow, Inc. Fiber reinforced tissue composites

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006016381A (en) * 2004-06-04 2006-01-19 Katsumi Koide Method for processing collagen
WO2009066635A1 (en) * 2007-11-21 2009-05-28 Kaneka Corporation Permeable film and method for producing the same
JP2015213675A (en) * 2014-05-12 2015-12-03 多木化学株式会社 Soluble collagen fiber porous body
JP2015213676A (en) * 2014-05-12 2015-12-03 多木化学株式会社 Collagen fiber crosslinked porous body
US11913166B2 (en) 2015-09-21 2024-02-27 Modern Meadow, Inc. Fiber reinforced tissue composites
US11001679B2 (en) 2016-02-15 2021-05-11 Modern Meadow, Inc. Biofabricated material containing collagen fibrils
US11286354B2 (en) 2016-02-15 2022-03-29 Modern Meadow, Inc. Method for making a biofabricated material containing collagen fibrils
US11525042B2 (en) 2016-02-15 2022-12-13 Modern Meadow, Inc. Composite biofabricated material
US11530304B2 (en) 2016-02-15 2022-12-20 Modern Meadow, Inc. Biofabricated material containing collagen fibrils
US11542374B2 (en) 2016-02-15 2023-01-03 Modern Meadow, Inc. Composite biofabricated material
JP2017222633A (en) * 2016-02-15 2017-12-21 モダン メドウ,インコーポレイテッド Method for making bio-fabricated material containing collagen fibrils
US11214844B2 (en) 2017-11-13 2022-01-04 Modern Meadow, Inc. Biofabricated leather articles having zonal properties
EP3704202A4 (en) * 2019-01-17 2020-12-16 Modern Meadow, Inc. Layered collagen materials and methods of making the same
US11352497B2 (en) 2019-01-17 2022-06-07 Modern Meadow, Inc. Layered collagen materials and methods of making the same

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