JP2002105213A - Molded material - Google Patents
Molded materialInfo
- Publication number
- JP2002105213A JP2002105213A JP2000301487A JP2000301487A JP2002105213A JP 2002105213 A JP2002105213 A JP 2002105213A JP 2000301487 A JP2000301487 A JP 2000301487A JP 2000301487 A JP2000301487 A JP 2000301487A JP 2002105213 A JP2002105213 A JP 2002105213A
- Authority
- JP
- Japan
- Prior art keywords
- molded article
- paper fiber
- color
- pigment
- paper
- 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
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、紙繊維、着色顔料
並びに熱可塑性樹脂及び/又は熱可塑性エラストマーを
含む組成物から形成された成形部材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molded member formed from a composition containing paper fiber, a coloring pigment, and a thermoplastic resin and / or a thermoplastic elastomer.
【0002】[0002]
【従来の技術及び発明が解決しようとする課題】従来、
紙繊維を主成分とし、熱可塑性樹脂を副成分として含む
組成物(以下紙複合材という。)からなる成形体は、着
色が困難であり、特にパステル色(淡明色)に着色され
た成形体は、製造されていなかった。その理由は、紙繊
維と熱可塑性樹脂とでは、極性が異なり、効果的な顔料
分散方法がなく、不均一な着色となるためであった。ま
た、均一な顔料分散を得るために、長時間高せん断の混
練を行うと、紙繊維が熱劣化して茶褐色に変色するとい
う問題もあった。そこで、通常は、原料に原色若しくは
濃暗色の顔料を加えて、最終的に濃暗色に着色し、この
ような紙繊維の変色を隠蔽している。このため、この種
の成形体は、一般に色感の低いものとならざるを得ず、
外観やイメージの優先される日用品への適用がなされて
いなかった。2. Description of the Related Art
A molded article composed of a composition containing paper fiber as a main component and a thermoplastic resin as an auxiliary component (hereinafter referred to as a paper composite material) is difficult to be colored, and is particularly molded into a pastel color (pale light color). The body had not been manufactured. The reason is that the paper fiber and the thermoplastic resin have different polarities, there is no effective pigment dispersing method, and the coloring is uneven. Further, when kneading at a high shear for a long time to obtain a uniform pigment dispersion, there is also a problem that the paper fibers are thermally degraded and turn brown. Therefore, usually, a primary color or a dark-dark pigment is added to the raw material, and the raw material is finally colored dark-dark to conceal such discoloration of the paper fiber. For this reason, this type of molded article generally has to have a low color impression,
The appearance and the image were not applied to the daily necessities which were prioritized.
【0003】従って、本発明の目的は、着色顔料を均一
に含む色感の高い成形体及びその製造方法を提供するこ
とにある。[0003] Accordingly, an object of the present invention is to provide a molded article having a high color sensation containing a colored pigment uniformly and a method for producing the same.
【0004】[0004]
【課題を解決するための手段】本発明は、紙繊維、該紙
繊維の表面を隠蔽する白色系顔料、着色顔料、並びに熱
可塑性樹脂及び/又は熱可塑性エラストマーを含む組成
物から形成された成形体であって、その表面における
(CIE1976)L*a*b*表色系の明度指数(L*)
が60〜90、色座標(a*)が−60〜60、色座標
(b*)が−60〜−1である成形体を提供することに
より、前記目的を達成したものである。SUMMARY OF THE INVENTION The present invention relates to a molded article formed from a composition comprising paper fiber, a white pigment for covering the surface of the paper fiber, a coloring pigment, and a thermoplastic resin and / or a thermoplastic elastomer. The lightness index (L * ) of the (CIE1976) L * a * b * color system on the surface of the body
The above object has been achieved by providing a molded product having a color coefficient of 60 to 90, a color coordinate (a * ) of -60 to 60, and a color coordinate (b * ) of -60 to -1.
【0005】また、本発明は、紙繊維の表面に該紙繊維
の表面を隠蔽する白色系顔料を付着させた後に、該紙繊
維と熱可塑性樹脂又は熱可塑性エラストマーとを混練し
て白色系混練組成物を調製し、該白色系混練組成物に少
なくとも着色顔料と希釈用熱可塑性樹脂及び又は熱可塑
性エラストマーとを混練して希釈・色調した着色混練組
成物を調製し、該着色混練組成物を所定形状に成形する
成形体の製造方法を提供することにより、前記の目的を
達成したものである。[0005] Further, the present invention provides a white kneading method in which a white pigment for covering the surface of the paper fiber is adhered to the surface of the paper fiber, and the paper fiber is kneaded with a thermoplastic resin or a thermoplastic elastomer. Preparing a composition, kneading at least a coloring pigment and a thermoplastic resin for dilution and / or a thermoplastic elastomer with the white kneading composition to prepare a diluted kneading colored kneading composition, and preparing the colored kneading composition. The object has been achieved by providing a method for producing a molded article to be molded into a predetermined shape.
【0006】[0006]
【発明の実施の形態】以下、本発明を、その好ましい実
施形態に基づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on preferred embodiments.
【0007】本発明の成形体は、紙繊維、該紙繊維の表
面を隠蔽する白色系顔料、着色顔料、並びに熱可塑性樹
脂及び/又は熱可塑性エラストマーを含む組成物から形
成された成形体であって、その表面における(CIE1
976)L*a*b*表色系(以下LAB表色系ともい
う。)の明度指数(L*)が60〜90、色座標(a*)
が−60〜60、色座標(b*)が−60〜−1であ
る。また、前記明度指数L*は、60〜80であること
が好ましく、60〜75であることがより好ましい。該
明度指数L*が60未満であると原色あるいは濃暗色と
なり、90を超えると白色となる。また、前記色座標指
数(b*)は、−50〜−1であることが好ましく、−
40〜−1であることがより好ましい。該色指数
(b*)が−1を超えると、白色若しくは黄味を有した
色彩となり、また、−60未満であると製造が困難とな
る。前記色座標指数(a*)は所望の色彩に応じて任意
に選択することができるが、−60〜60の範囲から外
れると製造が困難となる。The molded article of the present invention is a molded article formed from a composition containing paper fiber, a white pigment for covering the surface of the paper fiber, a coloring pigment, and a thermoplastic resin and / or a thermoplastic elastomer. And (CIE1)
976) The lightness index (L * ) of the L * a * b * color system (hereinafter also referred to as LAB color system) is 60 to 90, and the color coordinates (a *)
Are -60 to 60, and the color coordinates (b *) are -60 to -1. Further, the lightness index L * is preferably from 60 to 80, and more preferably from 60 to 75. When the lightness index L * is less than 60, it becomes a primary color or a dark and dark color, and when it exceeds 90, it becomes white. The color coordinate index (b * ) is preferably from -50 to -1.
It is more preferably 40 to -1. When the color index (b * ) exceeds -1, the color becomes white or yellowish, and when it is less than -60, the production becomes difficult. The color coordinate index (a * ) can be arbitrarily selected according to a desired color. However, if the color coordinate index (a * ) is out of the range of -60 to 60, manufacture becomes difficult.
【0008】また、本発明の成形体は、廃棄性、強度及
び成形性、特に成形体の寸法精度の両立、更に外観上の
表面性、金型転写性等の観点からは前記紙繊維の含有量
が30〜70重量%であることが好ましく、40〜60
重量%であることがより好ましく、50〜53重量%で
あることが最も好ましい。該繊維の含有量が30重量%
未満であると、相対的に樹脂含有量の増加となって廃棄
に不便になり、70重量%を超えると、強度が低下し、
成形性、外観性も悪くなる。Further, the molded article of the present invention contains the above-mentioned paper fiber from the viewpoints of discardability, strength and moldability, in particular, compatibility of dimensional accuracy of the molded article, appearance surface properties, mold transferability and the like. The amount is preferably 30 to 70% by weight, and 40 to 60% by weight.
%, More preferably 50 to 53% by weight. The content of the fiber is 30% by weight
If it is less than 70%, the resin content relatively increases and it becomes inconvenient to dispose. If it exceeds 70% by weight, the strength decreases,
Moldability and appearance also deteriorate.
【0009】前記紙繊維には、バージンパルプ、古紙パ
ルプ、ミルクカートン粉砕物等を用いることができる。
これらの紙繊維は、単独で又は2種以上を混合して用い
ることができる。そして、これらの中でも古紙の利用促
進、及び着色の容易さ等の点からOA古紙(上白古紙)
パルプが特に好ましい。As the paper fibers, virgin pulp, waste paper pulp, crushed milk carton and the like can be used.
These paper fibers can be used alone or in combination of two or more. Among them, OA waste paper (Kami-Shiraishi) is used in terms of promoting the use of waste paper and facilitating coloring.
Pulp is particularly preferred.
【0010】本発明の成形体における前記紙繊維の表面
を隠蔽する白色系顔料には、酸化チタン、炭酸カルシウ
ム、酸化亜鉛等を用いることができる。これらの白色系
顔料は、単独で又は2種以上を混合して用いることがで
きる。そして、これらの中でも、取り扱い性、耐熱性、
安定性、コスト等の点において酸化チタン、炭酸カルシ
ウムが特に好ましく用いられる。As the white pigment for concealing the surface of the paper fiber in the molded article of the present invention, titanium oxide, calcium carbonate, zinc oxide and the like can be used. These white pigments can be used alone or in combination of two or more. And among these, handleability, heat resistance,
Titanium oxide and calcium carbonate are particularly preferably used in terms of stability and cost.
【0011】本発明の成形体は、着色性、原料組成物の
混練性、機械的強度及びコスト低減の点から前記紙繊維
の表面を隠蔽する白色系顔料の含有量が3〜10重量%
であることが好ましく、3〜5重量%であることがより
好ましい。該白色系顔料の含有量が3重量%未満である
と、紙繊維の表面色の隠蔽不良となって黄味を発色し、
10重量%を超えると、成形体の強度が低下し、また、
コスト高となるIn the molded article of the present invention, the content of the white pigment for concealing the surface of the paper fiber is 3 to 10% by weight from the viewpoints of colorability, kneading property of the raw material composition, mechanical strength and cost reduction.
And more preferably 3 to 5% by weight. When the content of the white pigment is less than 3% by weight, the surface color of the paper fiber becomes poorly concealed and yellowish,
If the content exceeds 10% by weight, the strength of the molded body decreases, and
High cost
【0012】本発明の成形体における前記着色顔料に
は、フタロシアニングリーン、フタロシアニンブルー等
のフタロシアニン顔料、或いはその他の有機顔料等を用
いることができる。これらの着色顔料は、単独で又は2
種以上を混合して用いることができる。そして、これら
の中でも、取り扱い性、着色性、耐熱性、安定性、コス
ト低減の点からフタロシアニン顔料が特に好ましく用い
られる。As the coloring pigment in the molded article of the present invention, phthalocyanine pigments such as phthalocyanine green and phthalocyanine blue, and other organic pigments can be used. These color pigments can be used alone or
A mixture of more than one species can be used. Of these, phthalocyanine pigments are particularly preferably used from the viewpoints of handleability, coloring properties, heat resistance, stability, and cost reduction.
【0013】本発明の成形体は、着色性、機械的強度及
びコスト低減の点から、前記着色顔料の含有量が0.5
〜10wt%であることが好ましく、0.5〜5wt%
であることがより好ましい。該着色顔料の含有量が0.
5重量%であると着色不良となり、10重量%を超える
と成形体の強度が低下し、コストも高くなるThe molded article of the present invention has a coloring pigment content of 0.5 from the viewpoint of coloring property, mechanical strength and cost reduction.
-10 wt%, preferably 0.5-5 wt%
Is more preferable. When the content of the coloring pigment is 0.1.
If it is 5% by weight, poor coloring will result, and if it exceeds 10% by weight, the strength of the molded article will decrease, and the cost will increase.
【0014】本発明の成形体における前記熱可塑性樹脂
には、ポリエチレン(以下PE)、ポリプロピレン(以
下PP)、ポリ酢酸ビニル等のオレフィン系樹脂、ポリ
エチレンテレフタレート等のポリエステル系樹脂、ナイ
ロン等のポリアミド系樹脂、ポリ塩化ビニル、ポリスチ
レン、ポリビニルアルコール等のポリビニル系樹脂及び
/又はこれらの共重合体等を用いることができる。これ
らの熱可塑性樹脂は、単独で又は二種以上を混合して用
いることができる。そして、これらの中でも、成形が容
易で適度な強度が得られ、安価な点においてPE、PP
が好ましく用いられる。The thermoplastic resin in the molded article of the present invention includes olefin resins such as polyethylene (hereinafter PE), polypropylene (hereinafter PP) and polyvinyl acetate, polyester resins such as polyethylene terephthalate, and polyamide resins such as nylon. Resins, polyvinyl resins such as polyvinyl chloride, polystyrene, and polyvinyl alcohol and / or copolymers thereof can be used. These thermoplastic resins can be used alone or in combination of two or more. Among these, PE and PP are easy to mold and have appropriate strength, and are inexpensive.
Is preferably used.
【0015】本発明の成形体における前記熱可塑性樹脂
の含有量は、廃棄性と成形性との両立の観点からは30
〜47重量%であることが好ましく、35〜45重量%
であることがより好ましく、40〜45重量%であるこ
とがさらに好ましい。30重量%未満であると成形性が
悪くなり、強度も低下する。47重量%を超えると廃棄
が不便となる。[0015] The content of the thermoplastic resin in the molded article of the present invention is 30 from the viewpoint of compatibility between the disposal property and the moldability.
To 47% by weight, preferably 35 to 45% by weight.
Is more preferable, and even more preferably 40 to 45% by weight. If it is less than 30% by weight, the moldability will be poor and the strength will be reduced. If it exceeds 47% by weight, disposal becomes inconvenient.
【0016】本発明の成形体における前記熱可塑性エラ
ストマーには、TPO、TPU、SBS等を用いること
ができる。これらの熱可塑性エラストマーは、単独で又
は2種以上を混合して用いることができる。そして、こ
れらの中でも安価且つ樹脂との相溶性が良好な点におい
て、LLDPE系のエチレン−プロピレン共重合体が特
に好ましく用いられる。As the thermoplastic elastomer in the molded article of the present invention, TPO, TPU, SBS or the like can be used. These thermoplastic elastomers can be used alone or in combination of two or more. Among these, LLDPE-based ethylene-propylene copolymers are particularly preferably used because they are inexpensive and have good compatibility with resins.
【0017】本発明の成形体には、前記各成分に加え
て、顔料分散剤、成形助剤等を適宜の割合で含有させる
ことができる。The molded article of the present invention may contain a pigment dispersant, a molding aid, and the like in an appropriate ratio in addition to the above-mentioned components.
【0018】また、本発明の成形体は、繊維の熱劣化に
よる表面色の茶褐色化を、前記繊維表面の近傍の少量の
顔料で隠蔽でき、熱履歴による色変化を抑えることがで
きる点から、前記紙繊維表面の近傍に前記白色系顔料が
高濃度で存在していることが好ましい。このように紙繊
維表面の近傍に白色系顔料を存在させるには、親水性の
顔料分散剤を用いる等の手法がある。Further, the molded article of the present invention is capable of hiding the browning of the surface color due to the thermal deterioration of the fiber with a small amount of pigment near the fiber surface and suppressing the color change due to the heat history. It is preferable that the white pigment is present at a high concentration near the paper fiber surface. In order to make the white pigment exist in the vicinity of the paper fiber surface as described above, there is a method such as using a hydrophilic pigment dispersant.
【0019】上述の本発明の成形体は、着色混練時或い
は成形時において紙繊維が熱劣化して変色した場合に
も、その変色による黄味の発生を抑え、着色顔料の色彩
を損なうことがなく、色感の高いものである。また、本
発明の成形体は、紙繊維の含有量を高めたときには、紙
製品として廃棄することができる。特にパルプモールド
成形体用の部材、例えば、パルプモールド成形容器の外
蓋、内蓋、口金部材等として用いることで、パルプモー
ルド成形容器を本体と各部材とに分別することなくその
まま廃棄することができる。In the above-mentioned molded article of the present invention, even when the paper fiber is discolored due to thermal deterioration during coloring and kneading or molding, the generation of yellowish color due to the discoloration is suppressed, and the color of the colored pigment is impaired. Without color. When the content of paper fiber is increased, the molded article of the present invention can be discarded as a paper product. In particular, by using it as a member for a pulp molded article, for example, as an outer lid, an inner lid, a base member, or the like of a pulp molded container, the pulp molded container can be discarded without being separated into a main body and each member. it can.
【0020】本発明の成形体は、例えば、後述の本発明
の成形体の製造方法によって製造することができる。The molded article of the present invention can be produced, for example, by the method for producing a molded article of the present invention described below.
【0021】次に、本発明の成形体の製造方法をその好
ましい実施形態に基づき説明する。Next, a method for producing a molded article of the present invention will be described based on preferred embodiments.
【0022】先ず、紙繊維の表面に該紙繊維の表面を隠
蔽する白色系顔料を付着させた紙複合材を調製する。こ
の紙複合材は、最終的な所定の紙繊維含有量よりも高濃
度に紙繊維を含むように調製する。該白色系顔料の紙繊
維への分散方法は、例えば、湿式粉砕した紙繊維と該白
色系顔料の水系スラリーを抄紙乾燥後、乾式粉砕する方
法が挙げられる。この方法では、紙繊維表面に白色系顔
料を付着させるために、一般に紙製用に用いられる紙着
色用の顔料分散剤を用いることが好ましい。次いで、該
白色系顔料を付着させた該紙繊維と、前記熱可塑性樹脂
又は熱可塑性エラストマーとを混練して高濃度紙複合材
(白色系混練組成物)を得る。該効能℃紙複合材の混練
方法については、一般に知られた手法を用いることが可
能であり、必要に応じて白色系顔料を追加して混練して
もよい。該紙繊維及び該白色系顔料には、本発明の成形
体に用いられる前記紙繊維及び前記白色系顔料を特に制
限なく用いることができる。First, a paper composite in which a white pigment for covering the surface of the paper fiber is adhered to the surface of the paper fiber is prepared. The paper composite is prepared to contain paper fibers at a higher concentration than the final predetermined paper fiber content. Examples of the method for dispersing the white pigment in the paper fiber include a method in which wet-ground paper fiber and an aqueous slurry of the white pigment are paper-made, dried, and then dry-pulverized. In this method, it is preferable to use a pigment dispersant for paper coloring, which is generally used for papermaking, in order to attach a white pigment to the paper fiber surface. Next, the paper fiber to which the white pigment is adhered and the thermoplastic resin or thermoplastic elastomer are kneaded to obtain a high-concentration paper composite (white kneaded composition). As the method of kneading the paper composite of the above-mentioned efficacy, generally known methods can be used. If necessary, a white pigment may be added and kneaded. As the paper fiber and the white pigment, the paper fiber and the white pigment used in the molded article of the present invention can be used without any particular limitation.
【0023】次に、着色化した紙複合材(着色混練組成
物)を調製する。前記高濃度紙複合材は、ほぼ白色であ
り、熱劣化による変色力を抑えられるため、調色に際し
ては、自動調色システムを使用することが可能であり、
これにより必要な着色顔料組成を容易に求めることがで
きる。該着色混練組成物には、混練性の向上、すなわ
ち、該着色混練組成物の混練機中における金属壁面間で
の滑りを防止する等の点から、前記着色顔料とともに、
希釈用の熱可塑性樹脂又は熱可塑性エラストマーを添加
することができる。該希釈用の熱可塑性樹脂又は熱可塑
性エラストマーの配合割合は、前記高濃度紙複合材に含
有される熱可塑性樹脂又は熱可塑性エラストマーと、成
形体としたときの最終的な設定紙含有率に応じて決定す
ることができるが、例えば、前記高濃度紙複合材100
重量部に対し、10重量部以上配合することが好まし
く、15重量部以上配合することが好ましい。該熱可塑
性樹脂及び該熱可塑性エラストマーには、本発明の成形
体に用いられる前記熱可塑性樹脂及び熱可塑性エラスト
マーを特に制限なく用いることができる。Next, a colored paper composite (colored kneading composition) is prepared. Since the high-density paper composite material is substantially white and the discoloration power due to thermal deterioration can be suppressed, it is possible to use an automatic toning system for toning,
This makes it possible to easily determine the required color pigment composition. In the colored kneading composition, kneadability is improved, that is, from the viewpoint of preventing slippage between metal wall surfaces in a kneader of the colored kneading composition, together with the coloring pigment,
A thermoplastic resin or a thermoplastic elastomer for dilution can be added. The mixing ratio of the thermoplastic resin or the thermoplastic elastomer for dilution is determined according to the thermoplastic resin or the thermoplastic elastomer contained in the high-concentration paper composite material and the final set paper content of the molded article. For example, the high-concentration paper composite 100
It is preferable to mix 10 parts by weight or more with respect to parts by weight, and it is preferable to mix 15 parts by weight or more. As the thermoplastic resin and the thermoplastic elastomer, the thermoplastic resin and the thermoplastic elastomer used in the molded article of the present invention can be used without any particular limitation.
【0024】次に、上述のように色調した該混合組成物
を所定形状に成形する。成形には、プラスチック材料の
射出成形に通常用いられる射出成形機を用いて行うこと
ができる。この射出成形の成形条件は、自由に選択する
ことが可能であるが、上記本発明の成形体のような一様
な色調を有する成形体を得ようとする場合には、材料劣
化によるガス分の発生を防止する観点で可塑化温度を1
80℃以下とし、良好な金型表面転写性を得、プラスチ
ック調の成形体表面とするためには、金型温度を100
℃以上とし、比較的高圧で充填を行うと、得られる成形
体の色調の均一性が一層向上する。Next, the mixed composition having the above-mentioned color tone is formed into a predetermined shape. Molding can be performed using an injection molding machine usually used for injection molding of plastic materials. The molding conditions of this injection molding can be freely selected. However, when a molded article having a uniform color tone like the molded article of the present invention described above is to be obtained, a gas component due to material deterioration is required. From the viewpoint of preventing the generation of
In order to obtain a good mold surface transfer property at 80 ° C. or less and obtain a plastic-like molded product surface, the mold temperature should be 100 ° C.
C. or higher and filling at a relatively high pressure further improves the uniformity of the color tone of the obtained molded article.
【0025】上述の工程を有する本発明の成形体の製造
方法は、前記本発明の成形体の製造に特に好適である。The method for producing a molded article of the present invention having the above-mentioned steps is particularly suitable for producing the molded article of the present invention.
【0026】[0026]
【実施例】以下、本発明を実施例により更に具体的に説
明する。ボトル状のパルプモールド成形容器(容量10
00ml)に用いる下記の寸法形状のスクリューキャッ
プ(実施例1、比較例1)、及び口金部材(実施例2)
を下記のように作製し、そのLAB表色系の指数を測定
した。EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples. Bottle-shaped pulp mold container (capacity 10
00 ml) and screw caps of the following dimensions and shapes (Example 1, Comparative Example 1) and a base member (Example 2)
Was prepared as follows, and the index of the LAB color system was measured.
【0027】〔スクリューキャップ〕下記の外形寸法で
内周面に雌ネジを有するスクリュー開閉式キャップ。 外形:外径51.3mm、内径48.3mm、高さ2
2.3mm ネジ規格:4条2巻き、無理抜き離型法 〔口金部材〕下記の外形寸法で外周面に前記スクリュー
キャップが螺着可能なネジを有し、成形容器の口部に密
嵌させる口金部材。 外形:外径45.1mm、内径43.0mm、高さ1
6.9mm ネジ規格:4条1巻き、割型離型[Screw cap] A screw opening / closing cap having the following outer dimensions and a female screw on the inner peripheral surface. Outer diameter: outer diameter 51.3 mm, inner diameter 48.3 mm, height 2
2.3mm screw standard: 4.2 turns, forcible release mold release method [Die member] A screw with the following external dimensions, to which the screw cap can be screwed on the outer peripheral surface, is tightly fitted to the mouth of the molding container. Base member. Outer diameter: outer diameter 45.1mm, inner diameter 43.0mm, height 1
6.9mm screw standard: 4 turns, 1 roll, split mold release
【0028】〔実施例1〕[Example 1]
【0029】<高濃度紙複合材(白色系混練組成物)>
下記配合の高濃度紙複合材 複合紙材料:北越製紙
(株)製 E−ペレット)を使用した。 紙繊維:70重量% 白色系顔料:3重量% 熱可塑性樹脂:ポリプロピレン27重量% <混合組成物の色調>2軸混練機(ナカタニ機械製 N
R−73kg/h)を用い、15kg/h、180℃で
前記高濃度紙複合材ペレット及び下記着色顔料、希釈用
熱可塑性樹脂及び調整剤を下記配合で混練して成形材原
料となる着色ペレットを作製した。 高濃度紙複合材ペレット:100重量部 着色顔料:フタロシアニングリーン(大日精化工業
(株)製)1.1重量部、酸化チタン(大日精化工業
(株)製)9.6重量部 希釈用熱可塑性樹脂:NUC−FLX(日本ユニカー
製)23.3重量部 調整剤:3重量部 <成形体の成形>射出成形機(住友重機械工業(株)製
S480)を用い、可塑化温度180℃、金型温度11
5℃で前記着色ペレットから前記スクリューキャップを
射出成形した。<High concentration paper composite (white kneading composition)>
High-concentration paper composite material having the following composition: Composite paper material: E-pellet manufactured by Hokuetsu Paper Mills, Ltd. was used. Paper fiber: 70% by weight White pigment: 3% by weight Thermoplastic resin: 27% by weight of polypropylene <Color of mixed composition> Biaxial kneader (N
R-73 kg / h), at 15 kg / h, at 180 ° C., the above-mentioned high-concentration paper composite pellets, the following color pigment, thermoplastic resin for dilution and a modifier are kneaded with the following composition to obtain colored pellets as a raw material for molding materials. Was prepared. High concentration paper composite pellets: 100 parts by weight Color pigment: 1.1 parts by weight of phthalocyanine green (manufactured by Dainichi Seika Kogyo Co., Ltd.), 9.6 parts by weight of titanium oxide (manufactured by Dainichi Seika Kogyo Co., Ltd.) Thermoplastic resin: NUC-FLX (manufactured by Nippon Unicar) 23.3 parts by weight Adjuster: 3 parts by weight <Molding of molded article> Plasticization temperature 180 using an injection molding machine (S480 manufactured by Sumitomo Heavy Industries, Ltd.) ° C, mold temperature 11
The screw cap was injection molded from the colored pellets at 5 ° C.
【0030】得られたスクリューキャップの表面におけ
るLAB表色系の指数は、L=61.7、A=−43.
3、B=−2.7であり、均一で淡い明緑色系の色感の
高いものであった。The index of the LAB color system on the surface of the obtained screw cap is L = 61.7, A = -43.
3, B = -2.7, indicating a uniform and pale bright greenish color.
【0031】〔実施例2〕着色ペレットの配合を下記の
配合組成とした以外は、実施例1と同様にして前記成形
容器の口部に密嵌する口金部材を作製した。 <着色ペレットの配合組成> 高濃度紙複合材ペレット:100重量部 着色顔料:フタロシアニンブルー(大日精化工業(株)
製)0.0055重量部 白色顔料:酸化チタン(大日精化工業(株)製)、5.
5重量部 希釈用熱可塑性樹脂:PE(三井化学(株)製)30重
量部[Example 2] A cap member closely fitted to the mouth of the molding container was prepared in the same manner as in Example 1 except that the composition of the colored pellets was changed to the following composition. <Blending composition of colored pellets> High-concentration paper composite pellets: 100 parts by weight Colored pigment: phthalocyanine blue (Dainichi Seika Kogyo Co., Ltd.)
0.0055 parts by weight White pigment: titanium oxide (manufactured by Dainichi Seika Kogyo Co., Ltd.)
5 parts by weight Thermoplastic resin for dilution: PE (manufactured by Mitsui Chemicals, Inc.) 30 parts by weight
【0032】得られた口金部材の表面におけるLAB表
色系の指数は、本発明の範囲にあり、均一で淡い明青色
系の色感の高いものであった。The index of the LAB color system on the surface of the obtained die member was within the range of the present invention, and it was a uniform and pale blue color with a high color sensation.
【0033】〔比較例1〕着色ペレットを作製せずに、
高濃度紙複合材とマスターバッチと希釈用熱可塑性エラ
ストマーを下記の配合で予備混合し、直接成形機に投入
して前記成形容器のスクリューキャップを作製した。 <マスターバッチ着色の配合> 高濃度樹脂ペレット:100重量部 着色剤:マスターバッチ(大日本インキ(株)製、ピオ
ニー)20重量部 希釈用熱可塑性樹脂エラストマー:NUC−FLX(日
本ユニカー製)19重量部[Comparative Example 1] Without producing colored pellets,
The high-concentration paper composite material, the masterbatch, and the thermoplastic elastomer for dilution were premixed in the following composition, and were directly charged into a molding machine to prepare a screw cap of the molding container. <Mixing of masterbatch coloring> High-concentration resin pellets: 100 parts by weight Coloring agent: 20 parts by weight of masterbatch (manufactured by Dainippon Ink Co., Ltd., pony) Thermoplastic elastomer for dilution: NUC-FLX (manufactured by Nippon Unicar) 19 Parts by weight
【0034】得られたスクリューキャップは、紙繊維が
白色でプラスチック部材が明緑色のムラのある不均一な
情愛であった。The obtained screw cap had a nonuniform affection in which the paper fibers were white and the plastic member was light green.
【0035】[0035]
【発明の効果】本発明によれば、着色顔料を均一に含む
色感の高い成形体が提供される。According to the present invention, a molded article having a high color sensation containing a colored pigment uniformly is provided.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) C08K 3/26 C08K 3/26 5/3415 5/3415 C08L 1/02 C08L 1/02 101/00 101/00 // B29K 21:00 B29K 21:00 B29L 31:56 B29L 31:56 Fターム(参考) 4F070 AA15 AA71 AB11 AB26 AC15 AC16 AC72 AD02 AE04 FA03 FA12 FB04 FB06 FB07 FC05 4F071 AA02 AA09 AA10 AA20 AB18 AB21 AC12 AD01 AE09 AF34 AH05 BA01 BB05 BC04 BC07 BC09 BC10 4F201 AA11 AA45 AB12 AB24 AH57 AR20 BC12 BC33 BD04 BK01 BK73 BN30 BN31 BQ07 BQ50 4J002 AA01X AH00W BB03X BB12X BC03X BD04X BE02X BF02X CF05X CL01X CL03X DE136 DE236 EU027 FA04W FD096 FD097 GG01 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C08K 3/26 C08K 3/26 5/3415 5/3415 C08L 1/02 C08L 1/02 101/00 101 / 00 // B29K 21:00 B29K 21:00 B29L 31:56 B29L 31:56 F term (reference) 4F070 AA15 AA71 AB11 AB26 AC15 AC16 AC72 AD02 AE04 FA03 FA12 FB04 FB06 FB07 FC05 4F071 AA02 AA09 AA10 AA20 AB18 AB21 AC12 AD AF34 AH05 BA01 BB05 BC04 BC07 BC09 BC10 4F201 AA11 AA45 AB12 AB24 AH57 AR20 BC12 BC33 BD04 BK01 BK73 BN30 BN31 BQ07 BQ50 4J002 AA01X AH00W BB03X BB12X BC03X BD04X BE02X BF02X CF03X01 FD02X CF03X01
Claims (5)
系顔料、着色顔料、並びに熱可塑性樹脂及び/又は熱可
塑性エラストマーを含む組成物から形成された成形体で
あって、その表面における(CIE1976)L*a*b
*表色系の明度指数(L*)が60〜90、色座標(a
*)が−60〜60、色座標(b*)が−60〜−1であ
る成形体。1. A molded article formed from a composition containing paper fiber, a white pigment for covering the surface of the paper fiber, a coloring pigment, and a thermoplastic resin and / or a thermoplastic elastomer, wherein (CIE1976) L * a * b
* The lightness index (L * ) of the color system is 60 to 90, and the color coordinates (a
(*) Is -60 to 60, and the color coordinates (b *) are -60 to -1.
は熱可塑性エラストマー中における前記紙繊維表面の近
傍に高濃度に存在している請求項1記載の成形体。2. The molded article according to claim 1, wherein the white pigment is present in a high concentration near the paper fiber surface in the thermoplastic resin or the thermoplastic elastomer.
ルシウムである請求項2記載の成形体。3. The molded article according to claim 2, wherein the white pigment is titanium oxide or calcium carbonate.
る白色系顔料を付着させた後に、該紙繊維と熱可塑性樹
脂又は熱可塑性エラストマーとを混練して白色系混練組
成物を調製し、該白色系混練組成物に少なくとも着色顔
料と希釈用熱可塑性樹脂及び又は熱可塑性エラストマー
とを混練して希釈・色調した着色混練組成物を調製し、
該着色混練組成物を所定形状に成形する成形体の製造方
法。4. A white kneading composition is prepared by adhering a white pigment for concealing the surface of the paper fiber to the surface of the paper fiber and kneading the paper fiber with a thermoplastic resin or a thermoplastic elastomer. Then, at least a colored pigment and a thermoplastic resin for dilution and / or a thermoplastic elastomer are kneaded with the white kneaded composition to prepare a diluted kneaded colored kneaded composition,
A method for producing a molded article in which the colored kneading composition is molded into a predetermined shape.
が65〜75重量%%である請求項4記載の成形体の製
造方法。5. The method according to claim 4, wherein the content of the paper fiber in the mixed composition is 65 to 75% by weight.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000301487A JP2002105213A (en) | 2000-09-29 | 2000-09-29 | Molded material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000301487A JP2002105213A (en) | 2000-09-29 | 2000-09-29 | Molded material |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2002105213A true JP2002105213A (en) | 2002-04-10 |
Family
ID=18783022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000301487A Pending JP2002105213A (en) | 2000-09-29 | 2000-09-29 | Molded material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2002105213A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008013179A (en) * | 2006-06-30 | 2008-01-24 | Yoshino Kogyosho Co Ltd | Thread distortion preventing threads |
JP2011137078A (en) * | 2009-12-28 | 2011-07-14 | Japan Polypropylene Corp | Propylene-based resin molded article excellent in scratch whitening resistance |
JP2018149687A (en) * | 2017-03-09 | 2018-09-27 | 株式会社トラスト | Paper-made binding tool |
-
2000
- 2000-09-29 JP JP2000301487A patent/JP2002105213A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008013179A (en) * | 2006-06-30 | 2008-01-24 | Yoshino Kogyosho Co Ltd | Thread distortion preventing threads |
JP2011137078A (en) * | 2009-12-28 | 2011-07-14 | Japan Polypropylene Corp | Propylene-based resin molded article excellent in scratch whitening resistance |
JP2018149687A (en) * | 2017-03-09 | 2018-09-27 | 株式会社トラスト | Paper-made binding tool |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102971144B (en) | Readily removable film, label for in-mold molding, molded resin article having label attached thereto, wallpaper, glue label, and container having label attached thereto | |
CN1047142C (en) | A filled package exhibiting a substantially colorless transparent appe arance | |
CN105377982B (en) | The opaque bottle of individual layer protected with light and its manufacture method | |
US4768987A (en) | Toy automobile having a body formed by a composition for writing | |
JP7369838B2 (en) | makeup sheet | |
EP1285944A4 (en) | Process for producing colored resin composition and utilization thereof | |
CN103242616A (en) | Aesthetics resin composition with fantasy colors and preparation method thereof | |
JP2002105213A (en) | Molded material | |
JP2006009034A (en) | Thermoplastic resin composition for molded article having flip-flop metallic feeling | |
JPH06239350A (en) | Plastic container having color-metallic appearance | |
JP5836544B2 (en) | Plastic container for cosmetics and method for producing the same | |
JP2000319521A (en) | Thermoplastic resin composition for molded article having flipflop metallic appearance | |
JP2993706B2 (en) | Resin composition | |
JP2000289178A (en) | Decorated molded product | |
JP3010932B2 (en) | Solid drawing material | |
JP2005154530A (en) | Resin composition and resin molded article with pattern | |
JPS5855234A (en) | Manufacture of resin molding having marble pattern | |
JP2022172961A (en) | Manufacturing method of decorative sheet, and decorative sheet | |
JP2001059025A (en) | Colorant composition for developing pattern of olefin- based resin molding product and synthetic resin molding product | |
JP4822815B2 (en) | Manufacturing method of resin container | |
KR100413344B1 (en) | Sheath composition for cosmetic pencil and process for preparing cosmetic pencil using the same | |
JP2874462B2 (en) | Multi-layer plastic structure | |
JP2835555B2 (en) | Far infrared radiation transparent resin composition | |
JP4472880B2 (en) | Dry-laminated white polyethylene coating composition | |
JPH11228768A (en) | Fine powder form colorant composition for unsaturated polyester resin, unsaturated polyester resin composition and its preparation |