JPS61246236A - Production of stock-dyed polyester pellet - Google Patents
Production of stock-dyed polyester pelletInfo
- Publication number
- JPS61246236A JPS61246236A JP8949785A JP8949785A JPS61246236A JP S61246236 A JPS61246236 A JP S61246236A JP 8949785 A JP8949785 A JP 8949785A JP 8949785 A JP8949785 A JP 8949785A JP S61246236 A JPS61246236 A JP S61246236A
- Authority
- JP
- Japan
- Prior art keywords
- polyester
- pigment
- melt
- pellets
- polyethylene terephthalate
- 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.)
- Granted
Links
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はポリエチレンテレフタレート又はこれを主体と
するポリエステルに顔料を混合した原着ポリエステルペ
レットを製造する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for producing sporadically dyed polyester pellets in which a pigment is mixed with polyethylene terephthalate or a polyester mainly composed of polyethylene terephthalate.
（従来の技術）
ポリエチレンテレフタレート又はこれを主体とするポリ
エステルは９機械的、化学的な性能の優れた素材として
、繊維、フィルム、ボトル等の成形物として広く使用さ
れているが、顔料を混合した原着ポリエステルとして用
いられることも多い。(Prior art) Polyethylene terephthalate or polyester mainly composed of polyethylene terephthalate is a material with excellent mechanical and chemical performance and is widely used for molded products such as fibers, films, and bottles. It is often used as a dyed polyester.
しかしながら、このようなポリエステルは高融点で、か
つ高温で水や酸素と接触すると簡単に重合度が低下して
しまうため、顔料を高度に均一に分散させることは困難
で、特に溶融紡糸して繊維を製造する場合、短時間で紡
糸フィルターを目詰りさせたり、糸切れを多発させると
いう問題があった。However, such polyesters have a high melting point and the degree of polymerization easily decreases when they come into contact with water or oxygen at high temperatures, so it is difficult to disperse pigments highly uniformly, especially when melt-spinning fibers. When producing this, there were problems in that the spinning filter would become clogged in a short period of time and the yarn would break frequently.
このような問題を解決するための提案は種々なされてい
るが、十分満足できる段階には至っていない。例えば、
特公昭４９−９６１６号公報には嵩密度が０．３ ｇ
／ ｃ ｍ３以下のポリエチレンテレフタレート粉末と
顔料とを混合する方法が提案されているが、ポリエステ
ル粉末と顔料とを単純に混合するだけでは、顔料が高度
に均一に分散した高速紡糸に使用し得るような原着ペレ
ットを得ることは困難である。Various proposals have been made to solve these problems, but none have reached a fully satisfactory stage. for example,
In Japanese Patent Publication No. 49-9616, the bulk density is 0.3 g.
A method of mixing polyethylene terephthalate powder with a particle size of less than /cm3 and a pigment has been proposed, but simply mixing the polyester powder and the pigment does not allow use in high-speed spinning in which the pigment is highly uniformly dispersed. It is difficult to obtain dry-coated pellets.
（発明が解決しようとする問題点）
本発明は、ポリエチレンテレフタレート又はこれを主体
とするポリエステルに顔料を混合して。(Problems to be Solved by the Invention) In the present invention, a pigment is mixed with polyethylene terephthalate or a polyester mainly composed of polyethylene terephthalate.
顔料が高度に均一に分散して凝集塊がなく、高速紡糸に
おいても優れた可紡性を示す原着ポリエステルベレット
を製造する方法を提供しようとするものである。The object of the present invention is to provide a method for producing a spun-dyed polyester pellet in which the pigment is highly uniformly dispersed, there are no agglomerates, and the spinnability is excellent even in high-speed spinning.
（問題点を解決するための手段）
本発明は上記目的を達成するもので、その要旨は次のと
おりである。(Means for Solving the Problems) The present invention achieves the above objects, and the gist thereof is as follows.
ポリエチレンテレフタレート又はこれを主体とするポリ
エステルに１〜３０重量％の顔料を混合した原着ポリエ
ステルベレットを製造するに際し。When producing a spun-dyed polyester pellet made by mixing 1 to 30% by weight of a pigment with polyethylene terephthalate or a polyester mainly composed of polyethylene terephthalate.
まず、嵩密度０．６ｇ／ｃｍ３以下のポリエステルに顔
料をドライブレッドした後、溶融ブレンドして顔料濃度
３０〜６０重量％のマスターバッチを調製し２次いでこ
のマスターバッチと極限粘度が０．５以上のポリエステ
ルとを所定の顔料濃度となる割合で再度溶融混合するこ
とを特徴とする原着ポリエステルペレットの製造法。First, a pigment is dry-blended into polyester with a bulk density of 0.6 g/cm3 or less, and then melt-blended to prepare a masterbatch with a pigment concentration of 30 to 60% by weight. 1. A method for producing a spun-dyed polyester pellet, which comprises melt-mixing the polyester and polyester again at a ratio that provides a predetermined pigment concentration.
本発明において、ポリエステルの嵩密度はＪＩＳＫ ６
９１１によって測定した値であり、極限粘度はフェノー
ルとテトラクロルエタンとの重量比３／２の混合物を溶
媒として、２０℃で測定した値である。In the present invention, the bulk density of polyester is JISK 6
911, and the intrinsic viscosity is a value measured at 20° C. using a mixture of phenol and tetrachloroethane at a weight ratio of 3/2 as a solvent.
本発明の方法を実施するに際しては、まず、嵩密度０．
６ｇ／ｃｍ’以下のポリエステルと所定量の顔料とをダ
ブルコーン型プレンダー、Ｖ型ブレンダー、ヘンシェル
ミキサー、ロール型フレンダーあるいはポリエステルの
融点より低温の加圧ニーグー、バンバリーミキサ−等で
ドライブレッドした後、ポリエステルの融点より高温の
加圧ニーグー、バンバリーミキサ−等で溶融混合（−次
混合）してマスターバッチを調製する。次いで、このマ
スターバッチを水分１１００ｐｐ以下に乾燥後、極限粘
度が０．５以上のポリエステルと所定の顔料濃度となる
割合で再度溶融混合（二次混合）する。When carrying out the method of the present invention, first, the bulk density is 0.
After dry-blending polyester of 6 g/cm or less and a predetermined amount of pigment in a double cone blender, V-type blender, Henschel mixer, roll-type blender, pressurized Nigoo, Banbury mixer, etc. at a temperature lower than the melting point of the polyester, A masterbatch is prepared by melt-mixing (secondary mixing) using a pressurized Nigu, Banbury mixer, etc. at a temperature higher than the melting point of polyester. Next, this masterbatch is dried to a water content of 1,100 pp or less, and then melt-mixed (secondary mixing) with a polyester having an intrinsic viscosity of 0.5 or more at a ratio that provides a predetermined pigment concentration.
二次混合には、−軸又は二輪以上のニーダ−で。For secondary mixing, use a kneader with a shaft or two or more wheels.
軸及び／又はバレルに対して混練効果を向上させる対策
を施した機種を用いるのが好ましい。It is preferable to use a model that has measures for improving the kneading effect on the shaft and/or barrel.
−次混合に用いるポリエステルは嵩密度が０．６ｇ／ｃ
ｍ３以下のものとする必要があり、これより嵩密度の大
きいものでは、ドライブレッドの効果が実質的になくな
り、Ｒ料が高度に均一に分散したベレットを得ることが
できない。しかし、嵩密度が０．２ｇ／ｃｍ’以下のよ
うにあまり小さいいものは好ましくない。このような嵩
密度の小さいポリエステルは調製が困難であると共に混
合設備光たりの処理量が低下するだけで、顔料の分散度
の向上はそれほど期待できない。-The bulk density of the polyester used for the next mixing is 0.6 g/c
It is necessary that the bulk density is less than m3, and if the bulk density is larger than this, the dry breading effect will be substantially lost and it will not be possible to obtain pellets in which the R material is highly uniformly dispersed. However, it is not preferable that the bulk density is too small, such as 0.2 g/cm' or less. Such a polyester having a low bulk density is difficult to prepare and only reduces the throughput of the mixing equipment, so that it cannot be expected to significantly improve the degree of pigment dispersion.
嵩密度が０．６ｇ／ｃｍ’以下のポリエステルは固体ポ
リエステルの粉砕、ポリエステルペレットの乾燥工程で
発生するダスト等として得ることができる。Polyester having a bulk density of 0.6 g/cm' or less can be obtained as dust generated during the process of crushing solid polyester or drying polyester pellets.
また９本発明における顔料としては、無機顔料及び耐熱
性の良い有機顔料を使用することができる。顔料の具体
例としては、カーボンブラック。Further, as the pigment in the present invention, inorganic pigments and organic pigments with good heat resistance can be used. A specific example of a pigment is carbon black.
二酸化チタン、コロイダルシリカ、メタル・フタロシア
ニン等があげられる。Examples include titanium dioxide, colloidal silica, and metal phthalocyanine.
一次混合に際しては、マスターバッチの顔料濃度が３０
〜６０重量％となるようにすることが必要である。顔料
濃度が６０重量％を超えるとマスターバッチの調製が機
械的に困難となると共に二次混合しても顔料が高度に均
一に分散したベレットは得られない。一方、顔料濃度が
３０重量％未満の場合、顔料に起因する水分により極限
粘度の低下したポリエステルの量が多くなり、二次混合
で高重合度のポリエステルと混合しても極限粘度の低下
がカバーしきれなくなり、所望の極限粘度のベレットを
得ることができない。During primary mixing, the pigment concentration of the masterbatch is 30
It is necessary to adjust the amount to 60% by weight. If the pigment concentration exceeds 60% by weight, it becomes mechanically difficult to prepare a masterbatch, and even after secondary mixing, pellets in which the pigment is highly uniformly dispersed cannot be obtained. On the other hand, when the pigment concentration is less than 30% by weight, the amount of polyester whose intrinsic viscosity has decreased due to water caused by the pigment increases, and even when mixed with polyester with a high degree of polymerization in the secondary mixing, the decrease in the intrinsic viscosity is covered. As a result, pellets with the desired intrinsic viscosity cannot be obtained.
また、最終ペレットの顔料濃度は１〜３０重量％となる
ようにすることが必要である。顔料濃度が３０重量％を
超えるとベレットが脆（なり、取扱いにあたってダスト
の発生が多くなるばかりでなく、顔料を高度に均一に分
散させることが困難となる。一方、Ｒ料濃度が１重量％
未満の場合。Further, it is necessary that the final pellet has a pigment concentration of 1 to 30% by weight. If the pigment concentration exceeds 30% by weight, the pellet becomes brittle, which not only increases the generation of dust during handling, but also makes it difficult to disperse the pigment highly uniformly.On the other hand, when the R pigment concentration exceeds 1% by weight,
If less than
本発明のような混合を二段階に行う方法を採用しな（で
も顔料を均一に分散させることができ２本発明の方法を
採用することは却って経済的に不利である。However, it is economically disadvantageous to employ the method of the present invention in which mixing is performed in two stages as in the present invention (although the pigment can be uniformly dispersed).
（実施例） 次に実施例により本発明を具体的に説明する。(Example) Next, the present invention will be specifically explained with reference to Examples.
実施例において使用したポリエステルは次のようにして
調製したものである。The polyester used in the examples was prepared as follows.
ポリエステルＡ
コンダックス社製 ＣＶ−３０型ペレタイザーを用いて
、ポリエチレンテレフタレート未延伸糸（油剤等の付着
していないもの）を粉砕した後。Polyester A After pulverizing polyethylene terephthalate undrawn yarn (to which no oil agent or the like is attached) using a CV-30 type pelletizer manufactured by Condax.
圧縮・固着し、その際粉砕工程で発生するダストを圧縮
・固着工程にリサイクルして、極限粘度が０．６２．嵩
密度が０−５６ｇ／ｃｍ３のポリエステルペレットを得
た。By compressing and fixing, and recycling the dust generated during the crushing process to the compression and fixing process, the intrinsic viscosity is 0.62. Polyester pellets having a bulk density of 0-56 g/cm3 were obtained.
ポリエステルＢ
ポリエチレンテレフタレート未延伸糸（油剤等の付着し
ていないもの）を粉砕して、極限粘度が０．６３．嵩密
度が０．３０ｇ ／−ｃ ｍ３のポリエステル粉末を得
た。Polyester B An undrawn polyethylene terephthalate yarn (to which no oil or other substances are attached) is crushed to obtain an intrinsic viscosity of 0.63. A polyester powder with a bulk density of 0.30 g/-cm3 was obtained.
ポリエステルＣ
ポリエステルＡを調製する際に、粉砕工程で発生するダ
ストを圧縮・固着工程にリサイクルしないで、極限粘度
が０．６２．嵩密度が０．４４ｇ／ｃｍ’のポリエステ
ルペレットを得た。Polyester C When preparing Polyester A, the dust generated in the crushing process was not recycled to the compression and fixing process, and the intrinsic viscosity was 0.62. Polyester pellets having a bulk density of 0.44 g/cm' were obtained.
ポリエステルＤ
ポリエチレンテレフタレートペレフトを乾燥する際に発
生するダストを捕集して、極限粘度が０．６４．嵩密度
が０．２２ｇ ／ ｃ ｍ３のポリエステルを得た。Polyester D The dust generated when drying polyethylene terephthalate pellets is collected and has an intrinsic viscosity of 0.64. A polyester with a bulk density of 0.22 g/cm3 was obtained.
ポリエステルＥ
長径４ｍ＋、短径２鶴、長さ４ｆｉの楕円柱状のポリエ
チレンテレフタレートペレフトを液体窒素に浸漬後、液
体窒素の存在下で、細用ミクロン社製ミクロンビクトリ
ーミルを用いて、冷凍粉砕し。Polyester E Polyethylene terephthalate pellets in the shape of an elliptical cylinder with a major axis of 4 m +, a minor axis of 2 m, and a length of 4 fi were immersed in liquid nitrogen, and then frozen and ground in the presence of liquid nitrogen using a Micron Victory Mill manufactured by Hosyo Micron Co., Ltd. .
極限粘度が０．６３．嵩密度が０．１６ｇ７ ｃｍ’の
ポリエステル粉末を得た。Intrinsic viscosity is 0.63. A polyester powder with a bulk density of 0.16 g7 cm' was obtained.
ポリエステルＦ
常法により溶融重縮合して得られたポリエチレンテレフ
タレートをストランド状に払出し、冷却後、切断して長
径４ｍ、短径２ｔｍ、長さ４鶴の楕円柱状で、極限粘度
が０．６４．嵩密度が０．８４ ｇ ／ｃｍ”のポリエ
ステルペレットを得た。Polyester F Polyethylene terephthalate obtained by melt polycondensation by a conventional method is paid out in the form of a strand, cooled, and then cut to give an elliptical columnar shape with a major axis of 4 m, a minor axis of 2 tm, and a length of 4 cranes, and an intrinsic viscosity of 0.64. Polyester pellets with a bulk density of 0.84 g/cm'' were obtained.
ポリエステルＧ
常法により溶融重縮合して得られたポリエチレンテレフ
タレートをシート状に払出し、冷却後。Polyester G Polyethylene terephthalate obtained by melt polycondensation by a conventional method is paid out in a sheet form and cooled.
切断して、縦、横の長さが４ｍ、高さが２ｍの直方体状
で、極限粘度が０．６３．嵩密度が０．７３ ｇ ／ｃ
ｍ”のポリエステルペレットを得た。When cut, it has a rectangular parallelepiped shape with length and width of 4 m, height of 2 m, and an intrinsic viscosity of 0.63. Bulk density is 0.73 g/c
m'' polyester pellets were obtained.
実施例
ポリエステルＡ−Ｇをそれぞれ６０重量部と三菱化成工
業社製カーボンブラックＭＡ−６００を４０重量部の割
合で、三井三池化工機社製ＦＭ−１０Ｂ型ヘンシェルミ
キサーを用いてドライブレッドした後、森山製作所製り
３−５型加圧式ニーグーを用いて溶融混合してマスター
バンチを調製した。Example 60 parts by weight of each of the polyesters A to G and 40 parts by weight of carbon black MA-600 manufactured by Mitsubishi Chemical Industries, Ltd. were dry-blended using an FM-10B model Henschel mixer manufactured by Mitsui Miike Kakoki Co., Ltd., A master bunch was prepared by melt-mixing using a 3-5 type pressurized knee gun manufactured by Moriyama Seisakusho.
次いで、このマスターバンチを２５重量部／時間、ポリ
エステルＦを２５重量部／時間の割合で連続的にオート
マチック社製ＺＣＭ４１／４６型二軸ニーダ−に供給し
て溶融混合して原着ポリエステルペレットを得た。Next, this master bunch was continuously fed at a rate of 25 parts by weight/hour and polyester F at a rate of 25 parts by weight/hour to a ZCM41/46 type twin-screw kneader manufactured by Automatic Co., Ltd., and melt-mixed to form spun-dyed polyester pellets. Obtained.
得られたペレットをポリエステルＦで１０倍に希釈して
、２枚のガラス板の間に挟んで加熱溶融し、圧延後、４
０倍の顕微鏡を用いて、試料６ｍｇ中の直径１３μ以上
の粗大粒子数を測定して、カーボンブラックの分散状態
を評価した。The obtained pellets were diluted 10 times with polyester F, sandwiched between two glass plates, heated and melted, and after rolling,
Using a 0x microscope, the number of coarse particles with a diameter of 13 μm or more in 6 mg of the sample was measured to evaluate the dispersion state of carbon black.
結果を第１表に示す。The results are shown in Table 1.
第１表 注： 隘６，７は比較例である。Table 1 Note: Dimensions 6 and 7 are comparative examples.
次に、上記の方法で得られた原着ペレットを水分３０ｐ
ｐｍ以下に乾燥した後、原着ペレットを１．２５重量部
／時間とポリエステルＦを４８．５重量部／時間の割合
で、直径４５ｍのスクリューを有するエクストルーダー
型溶融紡糸装置に供給して。Next, the solution-dyed pellets obtained by the above method were mixed with a moisture content of 30p.
After drying to below pm, the undyed pellets were fed at a rate of 1.25 parts by weight/hour and the polyester F at 48.5 parts by weight/hour to an extruder type melt spinning apparatus having a screw with a diameter of 45 m.
８００メツシユのフィルターで濾過して溶融紡糸し、４
５００ｍ／分の速度で巻き取った。Filtered through an 800 mesh filter, melt-spun, and
It was wound up at a speed of 500 m/min.
その際、紡糸開始後、濾圧上昇によって継続して紡糸が
できなくなるまでの時間（フィルター寿命）とその間の
糸切れ回数を調べた結果を第２表に示す。Table 2 shows the results of examining the time (filter life) from the start of spinning until continuous spinning becomes impossible due to an increase in filtration pressure and the number of yarn breakages during that time.
第２表
（発明の効果）
本発明によれば、ポリエチレンテレフタレート又はこれ
を主体とするポリエステルに顔料が高度に均一に分散し
て凝集塊がなく、高速紡糸においても優れた可紡性を示
す原着ポリエステルペレットを製造することが可能とな
る。Table 2 (Effects of the Invention) According to the present invention, pigments are highly uniformly dispersed in polyethylene terephthalate or a polyester mainly composed of polyester, and there are no agglomerates, and the material exhibits excellent spinnability even in high-speed spinning. It becomes possible to produce coated polyester pellets.
Claims (1)
るポリエステルに１〜３０重量％の顔料を混合した原着
ポリエステルペレットを製造するに際し、まず、嵩密度
０．６ｇ／ｃｍ＾３以下のポリエステルに顔料をドライ
ブレッドした後、溶融ブレンドして顔料濃度３０〜６０
重量％のマスターバッチを調製し、次いでこのマスター
バッチと極限粘度が０．５以上のポリエステルとを所定
の顔料濃度となる割合で再度溶融混合することを特徴と
する原着ポリエステルペレットの製造法。(1) When producing spun-dyed polyester pellets in which 1 to 30% by weight of pigment is mixed with polyethylene terephthalate or polyester mainly composed of polyethylene terephthalate, first, the pigment is driven into polyester with a bulk density of 0.6 g/cm^3 or less. After red, melt blend to a pigment concentration of 30 to 60.
% by weight of a masterbatch, and then melt-mixing this masterbatch and a polyester having an intrinsic viscosity of 0.5 or more again in a ratio that provides a predetermined pigment concentration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8949785A JPS61246236A (en) | 1985-04-25 | 1985-04-25 | Production of stock-dyed polyester pellet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8949785A JPS61246236A (en) | 1985-04-25 | 1985-04-25 | Production of stock-dyed polyester pellet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61246236A true JPS61246236A (en) | 1986-11-01 |
| JPH0439488B2 JPH0439488B2 (en) | 1992-06-29 |
Family
ID=13972396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8949785A Granted JPS61246236A (en) | 1985-04-25 | 1985-04-25 | Production of stock-dyed polyester pellet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61246236A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4877819A (en) * | 1987-04-23 | 1989-10-31 | Konica Corporation | Process for producing polyester resin composition |
| WO1991013931A2 (en) * | 1990-03-13 | 1991-09-19 | Hoechst Italia S.P.A. | Process for manufacturing pigment concentrates |
| KR20010037124A (en) * | 1999-10-14 | 2001-05-07 | 신부영 | A photodegrable and biodegradable master batch chip, a process of preparing for the same, and its resin composite |
| CN102465350A (en) * | 2010-11-04 | 2012-05-23 | 泉州市约克颜料有限公司 | Melt spinning production method and device with online addition of color master |
| CN109762153A (en) * | 2018-12-29 | 2019-05-17 | 中国纺织科学研究院有限公司 | A kind of preparation method of functional polyester product, preparation system and functional polyester product |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS499616A (en) * | 1972-05-26 | 1974-01-28 | ||
| JPS5223157A (en) * | 1975-08-15 | 1977-02-21 | Mitsubishi Rayon Co | Polyester powder and method of making the same |
| JPS59230029A (en) * | 1983-06-14 | 1984-12-24 | Nippon Ester Co Ltd | Production of masterbatch coloring polymer pellet |
-
1985
- 1985-04-25 JP JP8949785A patent/JPS61246236A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS499616A (en) * | 1972-05-26 | 1974-01-28 | ||
| JPS5223157A (en) * | 1975-08-15 | 1977-02-21 | Mitsubishi Rayon Co | Polyester powder and method of making the same |
| JPS59230029A (en) * | 1983-06-14 | 1984-12-24 | Nippon Ester Co Ltd | Production of masterbatch coloring polymer pellet |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4877819A (en) * | 1987-04-23 | 1989-10-31 | Konica Corporation | Process for producing polyester resin composition |
| WO1991013931A2 (en) * | 1990-03-13 | 1991-09-19 | Hoechst Italia S.P.A. | Process for manufacturing pigment concentrates |
| KR20010037124A (en) * | 1999-10-14 | 2001-05-07 | 신부영 | A photodegrable and biodegradable master batch chip, a process of preparing for the same, and its resin composite |
| CN102465350A (en) * | 2010-11-04 | 2012-05-23 | 泉州市约克颜料有限公司 | Melt spinning production method and device with online addition of color master |
| CN109762153A (en) * | 2018-12-29 | 2019-05-17 | 中国纺织科学研究院有限公司 | A kind of preparation method of functional polyester product, preparation system and functional polyester product |
| CN109762153B (en) * | 2018-12-29 | 2021-04-16 | 中国纺织科学研究院有限公司 | Preparation method and preparation system of functional polyester product and functional polyester product |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0439488B2 (en) | 1992-06-29 |
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