JPH11236541A - Adhesive for sheet lamination shaping - Google Patents
Adhesive for sheet lamination shapingInfo
- Publication number
- JPH11236541A JPH11236541A JP10040232A JP4023298A JPH11236541A JP H11236541 A JPH11236541 A JP H11236541A JP 10040232 A JP10040232 A JP 10040232A JP 4023298 A JP4023298 A JP 4023298A JP H11236541 A JPH11236541 A JP H11236541A
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- sheet
- thermoplastic resin
- resin
- fine particles
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/147—Processes of additive manufacturing using only solid materials using sheet material, e.g. laminated object manufacturing [LOM] or laminating sheet material precut to local cross sections of the 3D object
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、シートの接着積層
による３次元物体の造形に用いられるシー卜積層造形用
接着剤に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive for sheet laminate molding used for molding a three-dimensional object by bonding and laminating sheets.
【０００２】[0002]
【従来の技術】従来より、複雑な形状の３次元物体を造
形する方法として、熱溶融性の接着剤を予め塗布した紙
シートを積層していく方法が知られている。この方法
は、各紙シートを積層した後、ホットローラで紙シート
を加熱することによって紙シート同士を接着し、上層の
紙シートを３次元物体を構成する領域の輪郭に沿って切
断するものである。しかしながら、この方法では、精度
の高い造形が困難であるうえ、接着強度が不十分である
などの問題があった。また、光硬化造形法により３次元
物体を造形する方法も知られているが、設備に多額の費
用を要するうえ、寸法精度が不十分であるなどの問題が
あった。2. Description of the Related Art Conventionally, as a method of forming a three-dimensional object having a complicated shape, a method of laminating paper sheets coated with a hot-melt adhesive in advance is known. In this method, after laminating each paper sheet, the paper sheets are adhered to each other by heating the paper sheets with a hot roller, and the upper paper sheet is cut along the contour of a region constituting a three-dimensional object. . However, this method has problems that it is difficult to form with high precision and that the bonding strength is insufficient. Further, a method of forming a three-dimensional object by a photo-curing molding method is also known. However, there are problems such as a large cost for equipment and insufficient dimensional accuracy.
【０００３】このようななかで、近時、寸法精度の高い
３次元物体を高速でしかも簡易に造形しうるシート積層
造形方法が提案され、注目されている。Under these circumstances, recently, a sheet lamination molding method capable of rapidly and easily molding a three-dimensional object having high dimensional accuracy has been proposed and attracted attention.
【０００４】すなわち、この方法は、３次元物体を構成
する有効領域と３次元物体を構成しない不要領域とに切
断した第１のシート上に、第２のシートを供給し、その
際、第２のシートの下面に一定の範囲で粉末状の接着剤
（電子トナーもしくは電子トナーから顔料を除いたも
の）を付着させ、第１および第２のシートを加熱加圧も
しくは加圧して接着した後、第２のシートを有効領域と
不要領域とに切断するもので、以上の工程を繰り返すこ
とにより３次元物体が造形される。That is, in this method, a second sheet is supplied on a first sheet cut into an effective area forming a three-dimensional object and an unnecessary area not forming a three-dimensional object. A powdery adhesive (an electronic toner or an electronic toner except for a pigment) is adhered to the lower surface of the sheet in a certain range, and the first and second sheets are adhered by heating or pressurizing, The second sheet is cut into an effective area and an unnecessary area, and a three-dimensional object is formed by repeating the above steps.
【０００５】この方法では、光硬化造形法と比較して安
価かつ迅速に寸法精度の高い成型品を作製することがで
きる、接着剤の付着に電子写真方式を用いることかでき
る、シートに接着剤の担体としての機能と樹脂含浸用芯
体としての機能を併せ持たせることができる、作製後ペ
ーパーヤスリ等で処理することによって容易に平滑な表
面を得ることができるなどの特長を有している。According to this method, a molded product having high dimensional accuracy can be produced at a low cost and quickly in comparison with a photo-curing molding method. An electrophotographic method can be used for applying an adhesive. It has features that it can have both the function as a carrier and the function as a resin impregnating core, and that a smooth surface can be easily obtained by treating it with a paper file or the like after production. .
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、このよ
うな方法においては、接着剤として、従来の電子写真用
トナーもしくはそれから顔料を除いたものをそのまま用
いているため、接着力が不十分で積層物が容易に層間剥
離してしまったり、あるいは長期にわたって一定した接
着強度を有する積層体を得ることが困難で、層間接着強
度にばらつきを生ずるなどの問題があった。However, in such a method, the conventional adhesive for electrophotography or a toner obtained by removing the pigment from the toner is used as the adhesive, and therefore the adhesive strength is insufficient and the laminate is not used. However, there are problems such as easy delamination, difficulty in obtaining a laminate having a constant adhesive strength over a long period of time, and variations in the interlayer adhesive strength.
【０００７】本発明はこのような従来技術の課題に対処
してなされたもので、シート積層造形法、特に３次元物
体を構成する有効領域と３次元物体を構成しない不要領
域とに切断した第１のシート上に、第２のシートを供給
し、その際、両シートの間に接着剤を介在させ、第１お
よび第２のシートを接着した後、第２のシートを有効領
域と不要領域とに切断するシート積層造形法に用いる接
着剤として有用な、良好な層間接着強度が長期間安定し
て得られるシート積層造形用接着剤を提供することを目
的とする。The present invention has been made in view of the above-mentioned problems of the prior art, and has been made by the sheet additive manufacturing method, particularly, by cutting into an effective area forming a three-dimensional object and an unnecessary area not forming a three-dimensional object. A second sheet is supplied on the first sheet, and an adhesive is interposed between the two sheets to bond the first and second sheets. An object of the present invention is to provide an adhesive for sheet lamination molding, which is useful as an adhesive used in a sheet lamination molding method for cutting the sheet and which can obtain good interlayer adhesion strength stably for a long period of time.
【０００８】[0008]
【課題を解決するための手段】本発明のシート積層造形
用接着剤は、粒径 10 nm〜300 nmの無機微粒子からなる
表面被覆層を有する、平均粒径が12μｍ〜30μｍであっ
て、ガラス転移点40℃〜75℃の熱可塑性樹脂を主体とす
る接着性粒子を含むことを特徴としている。Means for Solving the Problems The adhesive for laminated sheet molding of the present invention has a surface coating layer composed of inorganic fine particles having a particle diameter of 10 nm to 300 nm, an average particle diameter of 12 μm to 30 μm, and a glass. It is characterized by containing adhesive particles mainly composed of a thermoplastic resin having a transition point of 40 ° C to 75 ° C.
【０００９】以下、本発明を詳細に説明する。Hereinafter, the present invention will be described in detail.
【００１０】本発明において使用される熱可塑性樹脂
は、ガラス転移点が40〜75℃のものであり、かかる条件
を満足するものであれば特にその種類が限定されるもの
ではない。熱可塑性樹脂としては、エポキシ樹脂、ポリ
エステル樹脂、ポリスチレン樹脂、スチレン・アクリル
共重合樹脂、ポリカーボネート樹脂、ポリ塩化ビニール
等が例示され、なかでも、接着力や機械的強度の点か
ら、ポリエステル樹脂の使用が望ましい。これらは、 1
種を単独で使用してもよく、また、 2種以上を混合して
使用してもよい。なお、接着性の点からは、ガラス転移
点は低い方が望ましいが、ガラス転移点が40℃未満では
保存安定性や耐久性等が低下するため、本発明において
は、ガラス転移点が40〜75℃の範囲のものを使用する。The thermoplastic resin used in the present invention has a glass transition point of 40 to 75 ° C., and the type thereof is not particularly limited as long as such conditions are satisfied. Thermoplastic resins include epoxy resin, polyester resin, polystyrene resin, styrene / acrylic copolymer resin, polycarbonate resin, polyvinyl chloride
And the like , and among them, use of a polyester resin is desirable from the viewpoint of adhesive strength and mechanical strength. These are 1
The seeds may be used alone, or two or more kinds may be used in combination. In addition, from the viewpoint of adhesiveness, it is preferable that the glass transition point is lower, but if the glass transition point is lower than 40 ° C., storage stability and durability are reduced.In the present invention, the glass transition point is 40 to 40 ° C. Use one in the range of 75 ° C.
【００１１】本発明おいては、このような熱可塑性樹脂
に、必要に応じて、着色のための顔料や、摩擦帯電電荷
量を制御するための電荷制御剤、オフセットを防止する
ためのワックス類等を添加してもよい。顔料としては、
アセチレンブラックやサーマルブラック等のカーボンブ
ラック、シアン系、マゼンタ系、イエロー系顔料等が例
示される。また、電荷制御剤としては、負極性制御剤と
して含金属アゾ染料、テトラフェニルボレート、アルキ
ルサリチル酸の金属キレート、塩素化ポリエステル、酸
基過剰のポリエステル、塩素化ポリオレフィン、脂肪酸
の金属塩等が、また、正極性制御剤としてニグロシン系
の電子供与性の染料等が例示される。なお、顔料は、通
常、 1重量％〜 5重量％程度、また、電荷制御剤は、
0.5重量％〜 5重量％程度添加される。In the present invention, a pigment for coloring, a charge controlling agent for controlling a triboelectric charge amount, and a wax for preventing offset are added to such a thermoplastic resin, if necessary. Etc. may be added. As a pigment,
Examples thereof include carbon blacks such as acetylene black and thermal black, cyan-based, magenta-based, and yellow-based pigments. Further, as the charge control agent, a metal-containing azo dye as a negative polarity control agent, tetraphenyl borate, metal chelate of alkyl salicylic acid, chlorinated polyester, polyester with excess acid group, chlorinated polyolefin, metal salt of fatty acid, etc. Examples of the positive polarity control agent include nigrosine-based electron donating dyes. The pigment is usually about 1% to 5% by weight, and the charge control agent is
About 0.5% to 5% by weight is added.
【００１２】また、表面に被覆される粒径 10 nm〜300
nmの無機微粒子は、主として、適正な帯電量を付与する
とともに、流動性や転写効率を向上させ、さらにはこれ
らの特性を長期にわたって保持させるためのもので、粒
径 10 nm〜300 nmの、シリカ粉、酸化チタン粉、アルミ
ナ粉、酸化亜鉛粉、酸化鉄粉等が使用される。本発明に
おいては、特に、シリカ粉、酸化チタン粉、アルミナ粉
の使用が好ましい。また、表面をシランカップリング剤
やシリコーンオイル等で処理したものを用いることもで
きる。このような表面処理したものは、接着性粒子に撥
水性を付与し、高温高湿度下においても安定した現像特
性が得られる点で有利である。なお、これらの無機微粒
子は、 1種を単独で使用してもよく、 2種以上を混合し
て使用してもよい。Further, the particle size coated on the surface is 10 nm to 300 nm.
The inorganic fine particles having a particle diameter of 10 nm to 300 nm are mainly used for imparting an appropriate charge amount, improving fluidity and transfer efficiency, and maintaining these characteristics for a long time. Silica powder, titanium oxide powder, alumina powder, zinc oxide powder, iron oxide powder and the like are used. In the present invention, it is particularly preferable to use silica powder, titanium oxide powder, and alumina powder. Further, a material whose surface is treated with a silane coupling agent, silicone oil, or the like can also be used. Such a surface-treated product is advantageous in that it imparts water repellency to the adhesive particles and provides stable development characteristics even under high temperature and high humidity. These inorganic fine particles may be used alone or in a combination of two or more.
【００１３】この粒径 10 nm〜300 nmの無機微粒子の量
は、通常、粒子全体の 0.5重量％〜10重量％程度であ
る。The amount of the inorganic fine particles having a particle size of 10 nm to 300 nm is usually about 0.5% to 10% by weight of the whole particles.
【００１４】本発明における接着性粒子は、ガラス転移
点が40℃〜75℃の熱可塑性樹脂を、必要に応じて配合さ
れる顔料や電荷制御剤その他の各種添加剤とともに、加
熱混練機等を用いて溶融混練し、得られた混練物を冷却
した後、公知の粉砕手段および分級手段により粉砕し分
級して平均粒径が12μｍ〜30μｍの粒子を得、次いで、
これらの粒子に前記無機微粒子を添加しミキサーやボー
ルミル等により混合することにより得られる。なお、粒
子の粒径を上記範囲に限定したのは、平均粒径が12μｍ
未満では十分な厚さに付着させることができず接着力が
低下し、また、平均粒径が30μｍを超えると、帯電が不
十分となって現像中に飛び散りなどが生じる結果、同様
に十分な厚さに付着させることができず接着力が低下す
るからである。The adhesive particles in the present invention are prepared by mixing a thermoplastic resin having a glass transition temperature of 40 ° C. to 75 ° C. with a pigment, a charge controlling agent and other various additives, if necessary, by using a heat kneader or the like. After melt-kneading using, the obtained kneaded material is cooled, then crushed and classified by a known crushing means and classification means to obtain particles having an average particle diameter of 12 μm to 30 μm,
It can be obtained by adding the inorganic fine particles to these particles and mixing them with a mixer, a ball mill or the like. The reason why the particle size of the particles was limited to the above range was that the average particle size was 12 μm.
If it is less than 30 μm, it cannot be adhered to a sufficient thickness, resulting in a decrease in adhesive strength.If the average particle size exceeds 30 μm, charging becomes insufficient and scattering occurs during development, etc. This is because the adhesive cannot be adhered to the thickness and the adhesive strength is reduced.
【００１５】このようにして得られた接着性粒子を組む
本発明の接着剤は、公知の静電転写技術によりシート上
の所望の領域に十分な厚さの接着剤層を形成することが
でき、また、シートへの含浸性にも優れるため、これを
用いてシート積層造形方法により高精度で、かつ、接着
強度も十分な高品質の３次元物体を造形することができ
る。The adhesive of the present invention assembled with the adhesive particles thus obtained can form an adhesive layer having a sufficient thickness in a desired area on a sheet by a known electrostatic transfer technique. In addition, since the sheet is excellent in impregnating properties, a high-quality three-dimensional object having high accuracy and sufficient adhesive strength can be formed by the sheet additive manufacturing method using the sheet.
【００１６】すなわち、例えば、３次元物体を構成する
有効領域と３次元物体を構成しない不要領域とに切断し
た下層の普通紙等からなるシート上に積層される上層の
シートの片面の所定の領域に上記接着剤を静電転写して
接着剤層を形成し、これを下層のシート上に接着剤層が
下層シートの表面に接するように載置し、加熱加圧して
上層シートを下層シートに接着させる。次いで、上層シ
ートを有効領域と不要領域とに切断し、さらに、以上の
工程を繰り返し、得られた積層体から、不要領域部分を
除去することにより、３次元物体が造形される。本発明
の接着剤は、静電転写により十分な厚さに付着させるこ
とができ、しかも付着性は長期間にわたって維持される
ため、接着強度の高い３次元物体を繰り返し安定して造
形することができる。また、シートに対する含浸性にも
優れるため、シート積層時の反りの発生が抑制され、精
度の高い造形品を得ることができる。That is, for example, a predetermined area on one side of an upper layer sheet laminated on a sheet of lower layer plain paper or the like cut into an effective area forming a three-dimensional object and an unnecessary area not forming a three-dimensional object The above adhesive is electrostatically transferred to form an adhesive layer, which is placed on the lower sheet so that the adhesive layer is in contact with the surface of the lower sheet, and heated and pressed to convert the upper sheet into the lower sheet. Adhere. Next, the upper layer sheet is cut into an effective area and an unnecessary area, and the above steps are repeated to remove an unnecessary area portion from the obtained laminate, thereby forming a three-dimensional object. The adhesive of the present invention can be applied to a sufficient thickness by electrostatic transfer, and since the adhesiveness is maintained for a long period of time, a three-dimensional object having high adhesive strength can be repeatedly and stably formed. it can. Further, since the sheet has excellent impregnating properties, the occurrence of warpage at the time of laminating the sheets is suppressed, and a molded article with high accuracy can be obtained.
【００１７】なお、上記シート材には、表面にある程度
凹凸があって、かつ、通気性を有する紙の使用が望まし
く、接着剤が紙の繊維間に含浸することにより、繊維が
成型物の補強材として作用する結果、強度の高い成型物
を得ることができる。It is desirable to use paper having a certain degree of unevenness on the surface and having air permeability, and the adhesive is impregnated between the fibers of the paper so that the fibers reinforce the molded product. As a result of acting as a material, a molded product having high strength can be obtained.
【００１８】このように、本発明のシート積層造形用接
着剤は、静電転写によりシート間に十分な厚さの接着剤
層を長期にわたって安定に形成することができるため、
層間剥離のない高品質の３次元物体を安定に造形するこ
とができる。また、シートに対する含浸性にも優れるた
め、精度の高い造形が可能となる。As described above, the adhesive for sheet lamination molding of the present invention can stably form an adhesive layer having a sufficient thickness between sheets by electrostatic transfer over a long period of time.
A high-quality three-dimensional object without delamination can be formed stably. In addition, since the sheet is excellent in impregnating properties, it is possible to perform modeling with high accuracy.
【００１９】[0019]
【発明の実施の形態】次に、本発明を実施例により具体
的に説明するが、本発明はこれらの実施例によって限定
されるものではない。なお、以下の実施例および比較例
の記載中「部」とあるのはいずれも「重量部」を示す。Next, the present invention will be described in detail with reference to examples, but the present invention is not limited to these examples. In the following description of Examples and Comparative Examples, “parts” means “parts by weight”.
【００２０】実施例１ ガラス転移点が45℃のエポキシ樹脂 90 部、サリチル酸
金属キレート系負極性電荷制御剤 1部、およびカーボン
ブラック 2部を２軸混練機で加熱溶融混練し、冷却後、
粉砕し分級して平均粒径15μｍの粒子を得た。Example 1 90 parts of an epoxy resin having a glass transition point of 45 ° C., 1 part of a metal salicylate chelate-based negative charge control agent, and 2 parts of carbon black were heated and melted and kneaded by a twin-screw kneader, and then cooled.
After crushing and classifying, particles having an average particle size of 15 μm were obtained.
【００２１】次いで、得られた粒子 100部に、無機微粒
子として比表面積 130ｍ2 /g（１次粒径 8nm）のシリカ
粉 1部および比表面積30ｍ2 /g（１次粒径30nm）のアル
ミナ粉 1部を添加し、ミキサーで均一に混合して接着剤
を得た。Next, 1 part of silica powder having a specific surface area of 130 m 2 / g (primary particle diameter: 8 nm) and alumina having a specific surface area of 30 m 2 / g (primary particle diameter: 30 nm) were added to 100 parts of the obtained particles as inorganic fine particles. One part of the powder was added and uniformly mixed with a mixer to obtain an adhesive.
【００２２】このようにして得られた接着剤 5部をフェ
ライト粉（平均粒径70μｍ）100 部と混合し、二成分系
現像方式のレーザビームプリンタを用いて電子写真法に
より、紙シート（普通紙）上の有効領域に付着させて接
着剤層を形成した後、接着剤層側を下層の紙シート（有
効領域と不要領域とに既に切断されている。）に向けて
重ね合わせた後、加熱加圧して接着し、次いで、上層の
紙シートを有効領域と不要領域とに切断した。この操作
を、レーザビームプリンタに紙シートの厚みに応じた成
型物の３次元情報を与えつつ繰り返して積層体とした
後、最終的に不要領域部分を除去して成型物を作製し
た。5 parts of the adhesive thus obtained was mixed with 100 parts of ferrite powder (average particle size: 70 μm), and electrophotographically using a two-component developing laser beam printer to form a paper sheet (normal). After the adhesive layer is formed by adhering to the effective area on the paper), the adhesive layer side is superimposed on the lower paper sheet (already cut into the effective area and the unnecessary area). Bonding was performed by applying heat and pressure, and then the upper paper sheet was cut into an effective area and an unnecessary area. This operation was repeated while giving a laser beam printer three-dimensional information of the molded article corresponding to the thickness of the paper sheet to form a laminate, and finally unnecessary portions were removed to produce a molded article.
【００２３】得られた成型物は、層間剥離もなく十分な
強度（曲げ強さ、引張強さ等）を有していた。また、成
型物断面を観察したところ、溶融した接着剤がシートに
均一に含浸しているのが確認された。The obtained molded product had sufficient strength (bending strength, tensile strength, etc.) without delamination. When the cross section of the molded product was observed, it was confirmed that the molten adhesive was uniformly impregnated in the sheet.
【００２４】実施例２ エポキシ樹脂に代えてガラス転移点が60℃のスチレン・
アクリル共重合体を用いた以外は実施例１と同様にして
平均粒径25μｍの接着剤を得、さらに、得られた接着剤
を用いて、実施例１の場合と同様にして成型物を作製
し、その特性を評価した。Example 2 In place of the epoxy resin, styrene having a glass transition point of 60 ° C.
An adhesive having an average particle size of 25 μm was obtained in the same manner as in Example 1 except that the acrylic copolymer was used, and a molded article was produced using the obtained adhesive in the same manner as in Example 1. Then, its characteristics were evaluated.
【００２５】得られた成型物は、層間剥離もなく十分な
強度（曲げ強さ、引張強さ等）を有していた。また、成
型物断面を観察したところ、溶融した接着剤がシートに
均一に含浸しているのが確認された。The obtained molded product had sufficient strength (bending strength, tensile strength, etc.) without delamination. When the cross section of the molded product was observed, it was confirmed that the molten adhesive was uniformly impregnated in the sheet.
【００２６】実施例３ エポキシ樹脂に代えてガラス転移点が50℃のポリエステ
ル樹脂を用いるとともに、無機微粒子として、シランカ
ップリング剤で表面処理した平均粒径 30nm の酸化チタ
ン粉末 1部を添加するようにした以外は実施例１と同様
にして平均粒径20μｍの接着剤を得、さらに、得られた
接着剤を用いて、実施例１の場合と同様にして成型物を
作製し、その特性を評価した。Example 3 A polyester resin having a glass transition point of 50 ° C. was used in place of the epoxy resin, and 1 part of titanium oxide powder having an average particle diameter of 30 nm surface-treated with a silane coupling agent was added as inorganic fine particles. An adhesive having an average particle diameter of 20 μm was obtained in the same manner as in Example 1 except that the obtained adhesive was used. Further, a molded article was produced using the obtained adhesive in the same manner as in Example 1, and the characteristics were measured. evaluated.
【００２７】得られた成型物は、層間剥離もなく十分な
強度（曲げ強さ、引張強さ等）を有していた。また、成
型物断面を観察したところ、溶融した接着剤がシートに
均一に含浸しているのが確認された。The obtained molded product had sufficient strength (bending strength, tensile strength, etc.) without delamination. When the cross section of the molded product was observed, it was confirmed that the molten adhesive was uniformly impregnated in the sheet.
【００２８】比較例１ 粒子の平均粒径を10μｍとした以外は、実施例１と同様
にして接着剤を得、さらに、得られた接着剤を用いて、
実施例１の場合と同様にして成型物を作製したところ、
シート上の接着剤層の層厚が不十分で、強度のある成型
物を得ることができなかった。Comparative Example 1 An adhesive was obtained in the same manner as in Example 1 except that the average particle size of the particles was changed to 10 μm.
When a molded product was produced in the same manner as in Example 1,
The thickness of the adhesive layer on the sheet was insufficient, and a strong molded product could not be obtained.
【００２９】比較例２ 無機微粒子を未添加とした以外は実施例１と同様にして
接着剤を得、さらに、得られた接着剤を用いて、実施例
１の場合と同様にして成型物を作製したところ、シート
上の接着剤層の層厚にばらつきがあり、層厚の薄いシー
ト間で層間剥離が生じた。また、転写を重ねるにつれて
接着剤の付着量が減少して、層間剥離を生ずるようにな
り、強度のある成型物を得ることができなかった。Comparative Example 2 An adhesive was obtained in the same manner as in Example 1 except that no inorganic fine particles were added, and a molded article was obtained using the obtained adhesive in the same manner as in Example 1. As a result, the thickness of the adhesive layer on the sheet varied, and delamination occurred between sheets having a small thickness. Further, as the transfer was repeated, the amount of the adhesive applied decreased, and delamination occurred, so that a strong molded product could not be obtained.
【００３０】[0030]
【発明の効果】以上説明したように、本発明のシート積
層用接着剤によれば、均一で十分な厚さの接着剤層を安
定に形成することができるので、層間剥離のない接着強
度の十分な三次元物体を造形することができる。また、
シート内に均一かつ良好に含浸するので、積層するシー
トの平坦性を保ち、造形精度を高めることができる。さ
らに、長期間塗布を繰り返しても塗布量を一定に保つこ
とができるため、長期間安定した接着強度を得ることが
できる。その他、高い静電転写効率を得ることができ
る。As described above, according to the adhesive for laminating sheets of the present invention, an adhesive layer having a uniform and sufficient thickness can be formed stably, and therefore, the adhesive strength without delamination can be obtained. A sufficient three-dimensional object can be formed. Also,
Since the sheet is uniformly and satisfactorily impregnated, the flatness of the sheet to be laminated can be maintained, and the molding accuracy can be improved. Furthermore, since the amount of application can be kept constant even if application is repeated for a long period of time, stable adhesive strength can be obtained for a long period of time. In addition, high electrostatic transfer efficiency can be obtained.
【００３１】[0031]
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高野 秀裕 埼玉県川口市領家５丁目14番25号 東芝ケ ミカル株式会社川口工場内 (72)発明者 森田 哲 愛知県西尾市熱池町古新田４番地 (72)発明者 杉山 和夫 愛知県幡豆郡吉良町大字吉田字宮越26番地 ２ (72)発明者 磯谷 春彦 愛知県幡豆郡吉良町大字吉田字斉藤久151 番地 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hidehiro Takano 5-14-25 Ryoke, Kawaguchi-shi, Saitama Toshiba Chemical Co., Ltd. Kawaguchi Plant (72) Inventor Satoshi Morita 4 Furushinden, Atsuike-cho, Nishio-shi, Aichi Address (72) Inventor Kazuo Sugiyama 26-2, Miyakoshi, Yoshida, Oji, Kira-cho, Hazu-gun, Aichi 2 (72) Inventor Haruhiko 151, Hisashi Saito, Yoshida, Oda, Kira-cho, Hazu-gun, Aichi
Claims (7)
る表面被覆層を有する、平均粒径が12μｍ〜30μｍであ
って、ガラス転移点40〜75℃の熱可塑性樹脂を主体とす
る接着性粒子を含むことを特徴とするシート積層造形用
接着剤。1. An adhesive mainly comprising a thermoplastic resin having a surface coating layer composed of inorganic fine particles having a particle diameter of 10 nm to 300 nm and having an average particle diameter of 12 μm to 30 μm and a glass transition point of 40 to 75 ° C. Adhesive for sheet lamination molding, characterized by containing conductive particles.
において、 無機微粒子は、粒径が 30nm 未満の微粒子と、粒径が 3
0nm 以上の微粒子の混合物からなることを特徴とするシ
ート積層造形用接着剤。2. The adhesive according to claim 1, wherein the inorganic fine particles have a particle size of less than 30 nm and a fine particle having a particle size of less than 30 nm.
An adhesive for laminate sheet formation, comprising a mixture of fine particles having a particle size of 0 nm or more.
用接着剤において、 無機微粒子は、表面がシランカップリング剤またはシリ
コーンオイルで処理されていることを特徴とするシート
積層造形用接着剤。3. The adhesive according to claim 1, wherein the surface of the inorganic fine particles is treated with a silane coupling agent or silicone oil.
ート積層造形用接着剤において、 無機微粒子は、シリカ、酸化チタン、およびアルミナの
群から選ばれた少なくとも 1種からなることを特徴とす
るシート積層造形用接着剤。4. The adhesive according to claim 1, wherein the inorganic fine particles are made of at least one selected from the group consisting of silica, titanium oxide and alumina. Adhesive for sheet additive manufacturing.
ート積層造形用接着剤において、 熱可塑性樹脂は、炭素数が少なくとも18個以上のアルキ
ル鎖を含む化合物からなる電荷制御剤を含有することを
特徴とするシート積層造形用接着剤。5. The adhesive according to claim 1, wherein the thermoplastic resin contains a charge control agent comprising a compound having an alkyl chain having at least 18 or more carbon atoms. An adhesive for additive manufacturing of a sheet.
ート積層造形用接着剤において、 熱可塑性樹脂を主体とする接着性粒子は、顔料を含有す
ることを特徴とするシート積層造形用接着剤。6. The adhesive for laminated sheet molding according to claim 1, wherein the adhesive particles mainly composed of a thermoplastic resin contain a pigment. adhesive.
ート積層造形用接着剤において、 熱可塑性樹脂は、エポキシ樹脂、ポリエステル樹脂、ポ
リスチレン樹脂、スチレン・アクリル共重合樹脂、ポリ
カーボネート樹脂、およびポリ塩化ビニールからなる群
より選ばれた少なくとも 1種であることを特徴とするシ
ート積層造形用接着剤。7. The adhesive according to claim 1, wherein the thermoplastic resin is an epoxy resin, a polyester resin, a polystyrene resin, a styrene / acrylic copolymer resin, a polycarbonate resin, An adhesive for sheet additive manufacturing, characterized in that it is at least one selected from the group consisting of polyvinyl chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10040232A JPH11236541A (en) | 1998-02-23 | 1998-02-23 | Adhesive for sheet lamination shaping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10040232A JPH11236541A (en) | 1998-02-23 | 1998-02-23 | Adhesive for sheet lamination shaping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11236541A true JPH11236541A (en) | 1999-08-31 |
Family
ID=12574991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10040232A Withdrawn JPH11236541A (en) | 1998-02-23 | 1998-02-23 | Adhesive for sheet lamination shaping |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11236541A (en) |
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|---|---|---|---|---|
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| US9776376B2 (en) | 2011-08-29 | 2017-10-03 | Impossible Objects, LLC | Methods and apparatus for three-dimensional printed composites based on flattened substrate sheets |
| WO2018198961A1 (en) * | 2017-04-28 | 2018-11-01 | 住友化学株式会社 | Particulate adhesive and production method therefor |
| WO2018198962A1 (en) * | 2017-04-28 | 2018-11-01 | 住友化学株式会社 | Particulate adhesive and production method therefor |
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-
1998
- 1998-02-23 JP JP10040232A patent/JPH11236541A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006521264A (en) * | 2003-02-18 | 2006-09-21 | ダイムラークライスラー・アクチェンゲゼルシャフト | Coated powder particles for three-dimensional body production by layer fabrication |
| JP4629654B2 (en) * | 2003-02-18 | 2011-02-09 | ダイムラー・アクチェンゲゼルシャフト | Coated powder particles for 3D manufacturing by additive manufacturing |
| EP2776233A4 (en) * | 2011-08-29 | 2015-07-08 | Impossible Objects Llc | Methods and apparatus for 3d fabrication |
| US9776376B2 (en) | 2011-08-29 | 2017-10-03 | Impossible Objects, LLC | Methods and apparatus for three-dimensional printed composites based on flattened substrate sheets |
| US9827754B2 (en) | 2011-08-29 | 2017-11-28 | Impossible Objects, LLC | Methods and apparatus for 3D fabrication |
| EP3345744A1 (en) * | 2011-08-29 | 2018-07-11 | Impossible Objects, Inc. | Methods and apparatus for 3d fabrication |
| US10377080B2 (en) | 2011-08-29 | 2019-08-13 | Impossible Objects, Inc. | Method for fabricating three-dimensional printed composites |
| US10377106B2 (en) | 2011-08-29 | 2019-08-13 | Impossible Objects, Inc. | Methods and apparatus for three-dimensional printed composites based on flattened substrate sheets |
| US10343243B2 (en) | 2013-02-26 | 2019-07-09 | Robert Swartz | Methods and apparatus for construction of machine tools |
| US10252487B2 (en) | 2015-11-17 | 2019-04-09 | Impossible Objects Inc. | Additive manufacturing method and apparatus |
| US11040485B2 (en) | 2015-11-17 | 2021-06-22 | Impossible Objects, Inc. | Additive manufacturing method and apparatus |
| JPWO2017179579A1 (en) * | 2016-04-12 | 2019-02-21 | 住友化学株式会社 | Granular adhesive |
| EP3444312A4 (en) * | 2016-04-12 | 2019-11-27 | Sumitomo Chemical Company Limited | Granular adhesive |
| US10946592B2 (en) | 2016-09-11 | 2021-03-16 | Impossible Objects, Inc. | Resistive heating-compression method and apparatus for composite-based additive manufacturing |
| US11040490B2 (en) | 2017-03-17 | 2021-06-22 | Impossible Objects, Inc. | Method and apparatus for platen module for automated composite-based additive manufacturing machine |
| US10597249B2 (en) | 2017-03-17 | 2020-03-24 | Impossible Objects, Inc. | Method and apparatus for stacker module for automated composite-based additive manufacturing machine |
| US10967577B2 (en) | 2017-03-17 | 2021-04-06 | Impossible Objects, Inc. | Method and apparatus for powder system recycler for printing process |
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| A300 | Withdrawal of application because of no request for examination |
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