JP2012131124A - Pressurization and decompression transfer method of thermal transfer label - Google Patents

Pressurization and decompression transfer method of thermal transfer label Download PDF

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JP2012131124A
JP2012131124A JP2010285423A JP2010285423A JP2012131124A JP 2012131124 A JP2012131124 A JP 2012131124A JP 2010285423 A JP2010285423 A JP 2010285423A JP 2010285423 A JP2010285423 A JP 2010285423A JP 2012131124 A JP2012131124 A JP 2012131124A
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adherend
thermal transfer
pressure
label
transfer label
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JP5651460B2 (en
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Shuzo Matsuda
秀三 松田
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Japan Polymark Co Ltd
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Japan Polymark Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a pressurization and decompression transfer method which performs accurate thermocompression bonding of an adherend such as a final product not capable of being strongly pressurized, under a constant pressure by utilizing pressurization and/or decompression, when a thermal transfer label is transferred to the adherend.SOLUTION: The thermal transfer label 22 is interposed between a heating end of a hot plate 5 and the adherend 20, a space 40 including the heating end of the hot plate, the thermal transfer label and the adherend is decompressed after getting a hermetic state, and a space which is located at the back of the adherend and arranges the thermal transfer label is pressurized after getting the hermetic state, a surface of the adherend is adsorbed to the hot plate and at the same time the surface is pressurized to the hot plate.

Description

本発明は、熱転写ラベルを被着体に転写する際に、強く加圧ができない完成品などの被着体に対して、加圧および／または減圧を利用して一定の圧力で正確に熱圧着できる加減圧転写工法に関する。   The present invention accurately applies thermocompression bonding at a constant pressure to the adherend such as a finished product that cannot be strongly pressurized when transferring the thermal transfer label onto the adherend using pressure and / or pressure reduction. The present invention relates to a pressure / pressure reduction transfer method.

熱転写ラベルを被着体に転写するには、従来、実公昭５４−８７１１号や特開平８−２４４２０４号などに開示するように、固定ベース台の上に被着体および熱転写ラベルを重ね合わせて、その上方から１５０℃程度に加熱した可動熱板を押し当てる方法で行なわれている。通常の熱転写ラベルは、転写圧力が１ｋｇ／ｃｍ２程度必要であり、標準的な寸法のラベル（５０×１００ｍｍ）の場合では、約５０ｋｇ／ｃｍ２の圧力で布地などの被着体に熱板を強く押し当てる。 In order to transfer the thermal transfer label onto the adherend, conventionally, the adherend and the thermal transfer label are overlaid on a fixed base as disclosed in Japanese Utility Model Publication No. 54-8711 and Japanese Patent Laid-Open No. 8-244204. In this method, a movable hot plate heated to about 150 ° C. is pressed from above. A normal thermal transfer label requires a transfer pressure of about 1 kg / cm 2 , and in the case of a standard size label (50 × 100 mm), a hot plate is applied to an adherend such as a fabric with a pressure of about 50 kg / cm 2. Press firmly.

この熱板の押圧の際に、被着体が完成品になった服飾品または自動車のサンバイザであると、被着体である服飾品ではワッペンや発泡材などからなる芯材が存在し、サンバイザでは表皮内側の細い金属フレームや表皮の裏面に存在する生地の縫い目などにより、被着体の厚みが部分的に異なっている。このように被着体に部分的に凹凸が生じていると、熱転写ラベルの表面全域に均一な圧力が掛からず、該転写ラベルの熱圧着が不完全になることが多い。   When the heated plate is pressed, if the adherend is a finished product or an automobile sun visor, the accessory that is the adherend has a core material made of a patch or foam, and the sun visor. In this case, the thickness of the adherend is partially different depending on the thin metal frame inside the skin or the seam of the cloth existing on the back of the skin. If the adherend is partially uneven as described above, a uniform pressure is not applied to the entire surface of the thermal transfer label, and the thermocompression bonding of the transfer label is often incomplete.

一方、この場合において熱転写ラベルを十分に圧着するために、より高い加熱温度で長時間高圧で熱転写すると、被着体の内部発泡材または裏面の材料を変形したり熱損傷を与えることが生じやすい。その故に、現状の熱転写作業では、服飾品の裁断パーツまたはサンバイザの表皮単独に熱転写ラベルをまず転写してから、転写済みの各パーツを組み合わせ、全体の縫製を行って完成品を生産している。   On the other hand, in this case, in order to sufficiently press-bond the thermal transfer label, if the thermal transfer is performed at a higher heating temperature for a long time at a high pressure, the internal foam material or the back material of the adherend is likely to be deformed or thermally damaged. . Therefore, in the current thermal transfer work, the thermal transfer label is first transferred to the cut parts of clothing or the sun visor skin alone, and then the transferred parts are combined and the whole is sewn to produce the finished product. .

実公昭５４−８７１１号公報Japanese Utility Model Publication No. 54-8711 特開平８−２４４２０４号公報JP-A-8-244204

服飾品や自動車のサンバイザの生産工場において、裁断パーツおよび表皮単独にラベルを熱転写してから縫製を行って完成品を製造すると、生産工程中に加工不良が発生して中間品を廃棄すると、最初のラベル転写作業が無意味になり、熱圧着済みの転写ラベルが無駄になってしまう。また、多品種少量生産では、転写模様の有無や変更によって裁断パーツ数が激増して生産管理が煩雑になり、縫製間違いが多発するおそれがあるので、多品種少量生産への対応を考慮し、完成品を得た後の最終工程において熱転写ラベルを転写することがを望まれている。   In a production factory for apparel and automobile sun visors, when a label is heat-transferred to the cut parts and the skin alone and then a finished product is manufactured, processing defects occur during the production process and the intermediate product is discarded. The label transfer operation becomes meaningless, and the heat-pressed transfer label is wasted. Also, in high-mix low-volume production, the number of cutting parts increases dramatically due to the presence or change of the transfer pattern, making production management complicated, and sewing errors may occur frequently. It is desired to transfer the thermal transfer label in the final step after obtaining the finished product.

一方、熱転写ラベルを被着体に圧着させるための設備つまり熱転写機は、熱と圧力と時間を正確にコントロールする機能が必要であり、圧力に関しては熱転写ラベルの寸法に依存し、通常、圧力３〜２０００ｋｇ／ｃｍ２の出力を有している。転写ラベル用の熱転写機の出力は、寸法５０×１００ｍｍの標準的な熱転写ラベルの場合であると、５０ｋｇ／ｃｍ２以上に達すし、この種の大出力の熱転写機では、機械フレームの強度を高めた設計を要するうえに、１００ｋｇ以上の大型で高重量になって５０万円以上の高価な設備になってしまう。このため、経費節減を重要視するユーザーは、標準寸法以上の転写ラベル用の熱転写機についても、その販売コストをダウンすることを強く要求している。 On the other hand, the equipment for pressing the thermal transfer label to the adherend, that is, the thermal transfer machine, needs to have a function of accurately controlling the heat, pressure and time. The pressure depends on the size of the thermal transfer label, and usually the pressure 3 It has an output of ˜2000 kg / cm 2 . The output of a thermal transfer machine for a transfer label reaches 50 kg / cm 2 or more in the case of a standard thermal transfer label having a size of 50 × 100 mm. With this type of high output thermal transfer machine, the strength of the machine frame is increased. In addition to requiring an enhanced design, the large and heavy weight of 100 kg or more becomes an expensive facility of 500,000 yen or more. For this reason, users who place importance on cost savings are strongly demanding to reduce the sales cost of thermal transfer machines for transfer labels larger than the standard size.

熱転写ラベルの転写圧力条件つまり指定転写圧力は、一般に約１ｋｇ／ｃｍ２であり、単位面積当たりの加圧力を確実に管理することが要求されるけれども、熱転写ラベルの形状および面積はさまざまであり、形状と面積を確認したうえで、熱転写機器の押し付け力を決定することを要する。エアシリンダ駆動の熱転写機器の場合には、転写される押し付け面積を計算してから、熱板の推力（＝押し付け面積×指定転写圧力）を求め、次に使用しているエアシリンダの径からシリンダピストン面積を求め、この熱板の推力とシリンダピストン面積から所望のエアシリンダの空気圧（＝熱板の推力／シリンダピストン面積）を求めている。これらの措置は、多品種少量の製品を扱う生産現場では実に煩雑であり、ラベル交換のたびに面積測定、計算、空気圧の調整を行っているため、計算ミスや調整忘れなどが時には発生し、製品納入後に品質問題になることがある。 The transfer pressure condition of the thermal transfer label, that is, the designated transfer pressure is generally about 1 kg / cm 2 , and it is required to reliably control the pressure per unit area, but the shape and area of the thermal transfer label vary, It is necessary to determine the pressing force of the thermal transfer device after confirming the shape and area. In the case of an air cylinder-driven thermal transfer device, calculate the pressing area to be transferred, determine the thrust of the hot plate (= pressing area x specified transfer pressure), and then determine the cylinder from the diameter of the air cylinder in use. The piston area is obtained, and the desired air cylinder air pressure (= thrust plate thrust / cylinder piston area) is obtained from the thrust of the hot plate and the cylinder piston area. These measures are really complicated at production sites that handle a small variety of products, and because area measurement, calculation, and air pressure adjustment are performed each time a label is replaced, calculation errors and adjustments are sometimes lost. It may become a quality problem after product delivery.

本発明は、熱転写ラベルの転写工程と手段に関する前記の問題点を改善するために提案されたものであり、服飾品などの厚みを有する完成品にも熱転写ラベルを正確に熱圧着できる加減圧転写工法を提供することを目的としている。本発明の他の目的は、熱転写に際して高温・高圧を必要としないので、被着体の裏面や内部に存在する素材について、熱と力による変形および損傷を殆ど与えずに転写できる加減圧転写工法を提供することである。本発明の別の目的は、比較的小型、軽量で安価な熱転写機を用いて大判の熱転写ラベルを熱圧着できる加減圧転写工法を提供することである。   The present invention has been proposed in order to improve the above-mentioned problems relating to the transfer process and means of the thermal transfer label, and is capable of accurately applying the thermal transfer label to a finished product having a thickness such as clothing and the like under pressure and pressure transfer. The purpose is to provide construction methods. Another object of the present invention is that no high temperature and high pressure are required for thermal transfer, so that the material existing on the back surface or inside of the adherend can be transferred with almost no deformation and damage due to heat and force. Is to provide. Another object of the present invention is to provide a pressurizing / depressurizing transfer method capable of thermocompression bonding a large thermal transfer label using a relatively small, lightweight and inexpensive thermal transfer machine.

本発明に係る減圧転写工法は、熱板を有する熱転写機を用いて熱転写ラベルを被着体に熱圧着する際に、熱板の加熱端面と被着体との間に熱転写ラベルを介在させ、熱板の加熱端面、熱転写ラベルおよび被着体を含む空間を密閉状態にしてから、この空間を減圧化して被着体の表面を熱板に吸着させることにより、熱転写ラベルを被着体の表面に押し付け、該熱転写ラベルに実質的に熱と圧力を加えることで熱圧着する。   In the reduced pressure transfer method according to the present invention, when the thermal transfer label is thermocompression bonded to the adherend using a thermal transfer machine having a hotplate, the thermal transfer label is interposed between the heating end surface of the hotplate and the adherend, The space including the heating end face of the hot plate, the thermal transfer label and the adherend is sealed, and then the space is decompressed and the surface of the adherend is adsorbed to the hot plate, so that the thermal transfer label is attached to the surface of the adherend. And thermocompression-bonded by substantially applying heat and pressure to the thermal transfer label.

本発明に係る加圧転写工法は、熱板を有する熱転写機を用いて熱転写ラベルを被着体に熱圧着する際に、熱板の加熱端面と被着体との間に熱転写ラベルを介在させ、熱転写ラベルを配置する被着体の背後の空間を密閉状態にしてから、この空間を加圧化して被着体の表面を熱板に圧着させることにより、熱転写ラベルを被着体の表面に押し付け、該熱転写ラベルを熱と圧力を加えることで熱圧着すればよい。   In the pressure transfer method according to the present invention, when a thermal transfer label is thermocompression bonded to an adherend using a thermal transfer machine having a hotplate, the thermal transfer label is interposed between the heating end surface of the hotplate and the adherend. The space behind the adherend on which the thermal transfer label is placed is sealed, and then the space is pressurized and the surface of the adherend is pressure-bonded to the hot plate, so that the thermal transfer label is attached to the surface of the adherend. The heat transfer label may be pressed and thermocompression bonded by applying heat and pressure.

本発明に係る加減圧転写工法は、熱板を有する熱転写機を用いて熱転写ラベルを被着体に熱圧着する際に、熱板の加熱端面と被着体との間に熱転写ラベルを介在させ、熱板の加熱端面、熱転写ラベルおよび被着体を含む空間を密閉状態にしてから減圧化するとともに、転写ラベルを配置する被着体の背後の空間を密閉状態にしてから加圧化し、被着体の表面を熱板に吸着させると同時にその表面を熱板に圧着させることにより、熱転写ラベルを被着体の表面に押し付け、該熱転写ラベルを熱と圧力を加えることで熱圧着すればよい。   The pressure-reducing transfer method according to the present invention includes a thermal transfer label interposed between the heating end surface of the thermal plate and the adherend when the thermal transfer label is thermocompression bonded to the adherend using a thermal transfer machine having a thermal plate. The space including the heating end face of the hot plate, the thermal transfer label, and the adherend is sealed and then decompressed, and the space behind the adherend on which the transfer label is placed is sealed and pressurized. By adsorbing the surface of the adherend to the hot plate and simultaneously pressing the surface to the hot plate, the thermal transfer label may be pressed against the surface of the adherend, and the thermal transfer label may be thermocompression bonded by applying heat and pressure. .

本発明に係る加減圧転写工法において、被着体の通気性を低下させるために、該被着体の裏面に樹脂コーティングまたはフィルムを貼着すると好ましい。   In the pressure-reducing transfer method according to the present invention, in order to reduce the air permeability of the adherend, it is preferable to apply a resin coating or film to the back surface of the adherend.

本発明に係る加減圧転写工法は、従来のように熱転写ラベルを被着体に熱圧着するのではなく、被着体側を熱転写ラベルの方へ吸着および／または押し付けるので、服飾品または自動車のサンバイザのように、ラベルを熱転写する生地や表皮の裏面に芯地または発泡材の穴や細長い金属部品などが存在しても、ラベルに均一な圧力を付与して熱転写することができる。この加減圧転写工法を利用すると、縫い目や厚みが部分的に異なる複雑な形状の服飾品または自動車のサンバイザであっても、被着体にラベル全体を均等且つ強固に熱転写できる。   The pressure-reducing transfer method according to the present invention does not thermocompress the thermal transfer label to the adherend as in the prior art, but adsorbs and / or presses the adherend side toward the thermal transfer label. As described above, even when a cloth or a hole in a foam material or an elongated metal part is present on the back surface of the fabric or skin on which the label is thermally transferred, the label can be thermally transferred by applying a uniform pressure. When this pressure-reducing transfer method is used, the entire label can be evenly and firmly thermally transferred onto the adherend even if it is a clothing or an automobile sun visor having a complicated shape with partially different seams or thickness.

本発明に係る加減圧転写工法は、高温の熱板を被着体に長時間押し付けるのではなく、常温の被着体を熱転写ラベルの方へ押し付けるので、該被着体内部への熱伝導が相当に小さい。したがって、この加減圧転写工法では、被着体の裏面や内部に存在する材料に、熱と力による変形および損傷を殆ど与えずに熱転写できる。   The pressure-reducing transfer method according to the present invention does not press a high temperature hot plate against the adherend for a long time, but presses the normal temperature adherend toward the heat transfer label, so that heat conduction to the inside of the adherend is prevented. It is quite small. Therefore, in this pressure-reducing transfer method, the material existing on the back surface or inside of the adherend can be thermally transferred with almost no deformation and damage due to heat and force.

本発明に係る加減圧転写工法は、服飾品または自動車のサンバイザなどの完成品に熱転写ラベルの転写が行なえ、生産工程の最終で熱転写ラベルを貼り付けることができるため、裁断パーツ数が転写模様の有無や変更で増えることがなく、転写模様の誤りによる縫製間違いも解消する。この加減圧転写工法により、近年の被着体の多品種少量生産に容易に対応可能となる。   The pressure-reducing transfer method according to the present invention can transfer a thermal transfer label to a finished product such as a clothing item or an automobile sun visor, and can attach the thermal transfer label at the end of the production process. It does not increase due to the presence or absence or changes, and it eliminates sewing errors due to incorrect transfer patterns. This pressurization / depressurization transfer method can easily cope with the recent high-mix low-volume production of adherends.

本発明に係る加減圧転写工法を利用すると、熱転写ラベルの熱圧着に際して、従来の熱転写機のようなフレームの強度を高めた設計が不要になり、熱転写機を小型、軽量で安価に製造できる。したがって、寸法５０×１００ｍｍに達する熱転写ラベルの場合において、５０ｋｇ／ｃｍ２以上の高圧力を必要とする熱転写作業においても、小型、軽量で安価な熱転写機を用いて熱転写作業を実施できる。また、本発明の加減圧転写工法を実現する転写用機材は、単純な構成であるので従来の熱転写機に組み込むことも容易であり、例えば、ジャパンポリマーク社製の熱転写機Ｔ８０、Ｔ１００、Ｓ５０（商品名）へ取り付けることもできる。この結果、１台の熱転写機によって、本発明の加減圧転写工法を従来の転写方法と切り替えて実施することが可能になる。 The use of the pressure-reducing transfer method according to the present invention eliminates the need for a design with an increased frame strength, unlike the conventional thermal transfer machine, for thermocompression bonding of the thermal transfer label, and the thermal transfer machine can be manufactured in a small size, light weight and at low cost. Therefore, in the case of a thermal transfer label reaching a size of 50 × 100 mm, even in a thermal transfer operation that requires a high pressure of 50 kg / cm 2 or more, the thermal transfer operation can be performed using a small, lightweight and inexpensive thermal transfer machine. Moreover, since the transfer equipment for realizing the pressure / decompression transfer method of the present invention has a simple configuration, it can be easily incorporated into a conventional thermal transfer machine. For example, thermal transfer machines T80, T100, S50 manufactured by Japan Polymer Co., Ltd. It can also be attached to (product name). As a result, it becomes possible to switch the pressure-reducing transfer method of the present invention from the conventional transfer method by using one thermal transfer machine.

本発明に係る加減圧転写工法を利用すると、熱転写ラベルの形状や面積が変わっても、単位面積当たりの押し付け圧力が変化しないため、指定される転写圧力が一定の熱転写ラベルについては熱転写機の圧力調整が不要になる。つまり、標高０ｍ付近における減圧転写工法では、減圧０ｈｐａで常にほぼ１ｋｇ／ｃｍ２の転写圧力が得られることになり、また、加圧転写工法では、加圧空気圧そのものの値が転写圧力になるので、圧力管理が非常に分かりやすくなる。 When the pressure-reducing transfer method according to the present invention is used, the pressing pressure per unit area does not change even if the shape or area of the thermal transfer label changes. No adjustment is required. That is, in the reduced pressure transfer method at an altitude of about 0 m, a transfer pressure of almost 1 kg / cm 2 is always obtained at a reduced pressure of 0 hpa. In the pressure transfer method, the value of the pressurized air pressure itself becomes the transfer pressure. , Pressure management is very easy to understand.

本発明に係る減圧転写工法を実施するための熱転写機の要部を示す概略断面図である。It is a schematic sectional drawing which shows the principal part of the thermal transfer machine for enforcing the pressure-reduction transfer method concerning this invention. 図１の減圧転写工法でシート状の被着体に転写する状態を示す概略断面図である。It is a schematic sectional drawing which shows the state transferred to a sheet-like to-be-adhered body by the pressure reduction transfer method of FIG. 本発明に係る加圧転写工法を実施するための熱転写機の要部を示す概略断面図である。It is a schematic sectional drawing which shows the principal part of the thermal transfer machine for implementing the pressurization transcription | transfer method concerning this invention. 本発明に係る加減圧転写工法を実施するための熱転写機の要部を示す概略断面図である。It is a schematic sectional drawing which shows the principal part of the thermal transfer machine for enforcing the pressurization pressure reduction transfer method concerning this invention. 本発明に係る加減圧転写工法を実施するための別の熱転写機の要部を示す概略断面図である。It is a schematic sectional drawing which shows the principal part of another thermal transfer machine for enforcing the pressurization pressure reduction transfer method concerning this invention. 本発明に係る加減圧転写工法を実施するためのさらに別の熱転写機の要部を示す概略断面図である。It is a schematic sectional drawing which shows the principal part of another thermal transfer machine for enforcing the pressurization / decompression transfer method concerning this invention. 本発明に係る加減圧転写工法で用いる熱転写ラベルの一例を示す概略断面図である。It is a schematic sectional drawing which shows an example of the thermal transfer label used with the pressurization pressure transfer construction method which concerns on this invention.

本発明に係る加減圧転写工法に関して、使用可能な熱転写ラベル２（図１）は、少なくとも図柄層および熱溶着性の接着層を有していればよく、その典型的な層構成例を図７に示す。図７に例示の熱転写ラベル４２は、ポリエステルなどの離型フィルム４４と、該フィルム上に逆向きに印刷した図柄層４６と、白色バックアップ層などの中間層４８と、被着体の表面状態に応じた厚みを有する接着層５０とを有する。層４６，４８，５０は、例えば、スクリーン印刷法によって積層し、所望の文字、模様や図形に応じた独自の平面形状に定めてもよい。   Regarding the pressure-reducing transfer method according to the present invention, the usable thermal transfer label 2 (FIG. 1) only needs to have at least a pattern layer and a heat-weldable adhesive layer. Shown in The thermal transfer label 42 illustrated in FIG. 7 includes a release film 44 such as polyester, a pattern layer 46 printed on the film in the reverse direction, an intermediate layer 48 such as a white backup layer, and a surface state of the adherend. And an adhesive layer 50 having a corresponding thickness. The layers 46, 48, and 50 may be laminated by, for example, a screen printing method, and may be defined in a unique planar shape according to a desired character, pattern, or figure.

熱転写ラベル４２において、耐摩耗性の透明保護層（図示しない）を離型フィルム４４と図柄層４６との間に積層してもよく、該保護層は耐摩擦性の優れた樹脂からなる。   In the thermal transfer label 42, a wear-resistant transparent protective layer (not shown) may be laminated between the release film 44 and the design layer 46, and the protective layer is made of a resin having excellent friction resistance.

接着層５０を構成する熱溶融性の接着剤は、例えば、市販の熱可塑性ポリウレタン系樹脂、ポリエステル系樹脂、ポリオレフィン系樹脂、クロロプレン系樹脂などの１種または混合物からなる。接着層５０について、被着体１１が平滑な表面であれば、熱可塑性樹脂溶液などを用いてその厚みは１０〜２０μｍであり、被着体１１が凹凸があるラフな表面であれば、凹凸の隙間に接着層の樹脂が入り込むので、その厚みは１００〜２００μであると好ましい。   The heat-meltable adhesive constituting the adhesive layer 50 is made of, for example, one or a mixture of commercially available thermoplastic polyurethane resin, polyester resin, polyolefin resin, chloroprene resin, and the like. If the adherend 11 is a smooth surface, the thickness of the adhesive layer 50 is 10 to 20 μm using a thermoplastic resin solution. If the adherend 11 is a rough surface with irregularities, Since the resin of the adhesive layer enters the gap, the thickness is preferably 100 to 200 μm.

熱転写ラベル４２は、柔軟な被着体１１と同様に柔軟性を有することが望ましい。熱転写ラベル４２は、熱転写の際に、被着体１１の下側または上側に配置し、接着層５０を被着体１１と近接させる。離型フィルム４４は、図柄層４６などの熱転写が完了した後に直ちにまたは冷却後に剥離すればよい。   The thermal transfer label 42 desirably has flexibility similar to the flexible adherend 11. The thermal transfer label 42 is disposed on the lower side or the upper side of the adherend 11 during the thermal transfer, and the adhesive layer 50 is brought close to the adherend 11. The release film 44 may be peeled off immediately after the thermal transfer of the design layer 46 or the like is completed or after cooling.

一方、被着体１１は、服飾品や自動車のサンバイザにおける布地または軟質プラスチックシートのように、加熱・加圧時の熱転写で凹凸が生じる柔軟な素材からなる。弾性変形しにくい金属、ガラス、木材、硬質プラスチックなどは、本発明工法を適用する必要性が存在しない。   On the other hand, the adherend 11 is made of a flexible material in which irregularities are generated by thermal transfer during heating and pressurization, such as a cloth or a soft plastic sheet in clothing or a car sun visor. There is no need to apply the method of the present invention to metals, glass, wood, hard plastics and the like which are not easily elastically deformed.

被着体１１において、その表側と裏側と間に気圧差を発生させ、減圧空間１６（図１）および／または高圧空間４０（図４）を形成するために、該被着体の通気性が相当に低いことが必要である。被着体１１は、それ自体に通気性があって表側と裏側と間に気圧差があまり発生しないならば、該被着体の裏面に任意のコーティングを施したりまたはフィルムを貼着しなければならない。被着体１１に貼着したフィルムは、加減圧工法の完了後に剥離することも可能である。   In the adherend 11, an air pressure difference is generated between the front side and the back side to form the decompression space 16 (FIG. 1) and / or the high pressure space 40 (FIG. 4). It needs to be fairly low. If the adherend 11 has air permeability and does not generate a large pressure difference between the front side and the back side, an arbitrary coating or a film should not be applied to the back side of the adherend. Don't be. The film adhered to the adherend 11 can be peeled off after the pressurization method is completed.

本発明は、厳密には減圧工法、加圧工法、加減圧工法の３工法に分類することができる。それぞれの工法について説明すると下記の通りである。   Strictly speaking, the present invention can be classified into three methods: a decompression method, a pressurization method, and a pressurization method. Each method is explained as follows.

（１）減圧工法（図１および図２参照）
減圧工法では、熱板５の周囲に空間１６を形成し、環状枠材７をパッキンとして熱板５の外周に配置する。熱転写の際に、被着体１１を環状枠材７に密着させ、熱板５の周囲の空間１６を減圧する。減圧の結果、大気圧の力で被着体１１を熱板５に押し付け、該被着体１１と熱板５との間に位置する熱転写ラベル２および被着体１１に熱と圧力を加え、該ラベルを被着体１１に熱圧着する。 (1) Depressurization method (see Fig. 1 and Fig. 2)
In the decompression method, a space 16 is formed around the hot plate 5 and the annular frame member 7 is disposed on the outer periphery of the hot plate 5 as a packing. At the time of thermal transfer, the adherend 11 is brought into close contact with the annular frame member 7, and the space 16 around the hot plate 5 is decompressed. As a result of the depressurization, the adherend 11 is pressed against the hot plate 5 with the force of atmospheric pressure, and heat and pressure are applied to the thermal transfer label 2 and the adherend 11 positioned between the adherend 11 and the hot plate 5; The label is thermocompression bonded to the adherend 11.

減圧工法は、標高０ｍにおける標準の大気圧が１０１３ｈＰａ（０.１ＭＰａ＝約１.０ｋｇ／ｃｍ２）であることに意味がある。この大気圧の元で、熱板５周囲の密封空間１６を減圧化すれば、被着体１１は大気圧によって熱板５に押し付けられる。この際に、熱板周囲の空間１６が０ｈＰａまで減圧化されれば、約１.０ｋｇ／ｃｍ２の圧力で被着体１１が押し付けられることを意味する。 The decompression method is meaningful in that the standard atmospheric pressure at an altitude of 0 m is 1013 hPa (0.1 MPa = about 1.0 kg / cm 2 ). If the sealed space 16 around the hot plate 5 is decompressed under the atmospheric pressure, the adherend 11 is pressed against the hot plate 5 by the atmospheric pressure. At this time, if the space 16 around the hot plate is decompressed to 0 hPa, it means that the adherend 11 is pressed at a pressure of about 1.0 kg / cm 2 .

減圧工法の問題点は、押し付け圧力が大気圧に左右されることである。一般に、大気圧は低気圧で最低９８０ｈＰａおよび高気圧で最高１０５０ｈＰａであり、減圧０ｈＰａの条件を達成しても、０.９８〜１.０５ｋｇ／ｃｍ２の変動があり、しかも最大に減圧しても、１.０５ｋｇ／ｃｍ２以上の圧力が得られない。前者の圧力変動は、この程度であれば熱転写作業の際に問題にはならない。一方、後者の最大圧力が１.０５ｋｇ／ｃｍ２にすぎないことは、１ｋｇ／ｃｍ２以上の高圧力を必要とする熱転写作業では対応できず、大判の転写ラベルの転写作業では適当な対策を講じなければならない。 The problem with the decompression method is that the pressing pressure depends on the atmospheric pressure. In general, the atmospheric pressure is at least 980 hPa at low pressure and 1050 hPa at high pressure, and even if the reduced pressure is 0 hPa, there is a fluctuation of 0.98 to 1.05 kg / cm 2 , and the maximum pressure is reduced. A pressure of 1.05 kg / cm 2 or more cannot be obtained. The former pressure fluctuation is not a problem in the thermal transfer operation if it is this level. On the other hand, the latter maximum pressure of only 1.05 kg / cm 2 cannot be handled by thermal transfer work that requires a high pressure of 1 kg / cm 2 or more, and appropriate measures should be taken for large-size transfer label transfer work. I must take it.

さらに、転写作業を行なう場所の高度も考慮することを要する。大気圧は高度が上がれば低下する。標高０ｍでの気圧が１０１３ｈＰａであるのに対し、標高１０００ｍでは約９００ｈＰａ、標高２０００ｍで約８００ｈＰａと気圧が変化する。すなわち、軽井沢などの標高１０００ｍの高地における転写作業では、通常の１０％減の圧力になる点にも留意すべきである。   Furthermore, it is necessary to consider the altitude of the place where the transfer operation is performed. Atmospheric pressure decreases as altitude increases. While the atmospheric pressure at an altitude of 0 m is 1013 hPa, the atmospheric pressure changes to about 900 hPa at an altitude of 1000 m and about 800 hPa at an altitude of 2000 m. In other words, it should be noted that the pressure at a high altitude of 1000 m, such as Karuizawa, is a normal pressure reduction of 10%.

高圧力を要する転写作業は、下記に示す加圧工法または減圧＋加圧法である加減圧工法を利用すると容易に実現可能である。例えば、加圧工法において、公知のエアコンプレッサを利用すると、５ｋｇ／ｃｍ２以上の圧力を達成することは容易である。また、熱転写機が存在する作業室について、室内の作業環境自体を高圧化することも可能である。 A transfer operation requiring a high pressure can be easily realized by using a pressurizing method or a pressurizing / depressurizing method which is a reduced pressure + pressurized method described below. For example, when a known air compressor is used in the pressurization method, it is easy to achieve a pressure of 5 kg / cm 2 or more. Further, it is possible to increase the pressure of the work environment in the work room where the thermal transfer machine exists.

（２）加圧工法（図３参照）
図３において、加圧用プレート３２を矢印方向に下降し、被着体２０の裏面側に密封空間４０を形成してから、通路３６から圧縮空気を送り込む。この結果、被着体２０を熱板５に押し付け、該被着体と熱板５との間に位置する熱転写ラベル２２および被着体２０に熱と圧力を加え、該ラベルを被着体２０に熱圧着する。この際に、図３の装置下方は、図１のそれと類似するけれども、空間１６が存在しても密封する必要はない。 (2) Pressure method (see Fig. 3)
In FIG. 3, the pressurizing plate 32 is lowered in the direction of the arrow to form a sealed space 40 on the back side of the adherend 20, and then compressed air is fed from the passage 36. As a result, the adherend 20 is pressed against the hot plate 5, heat and pressure are applied to the thermal transfer label 22 and the adherend 20 positioned between the adherend and the hot plate 5, and the label is attached to the adherend 20. Thermocompression bonded to. At this time, the lower part of the apparatus in FIG. 3 is similar to that in FIG. 1, but it does not need to be sealed even in the presence of the space 16.

被着体が図示のようなシート材２０であると、加圧工法を用いて、高圧で熱転写ラベル２２を転写することは比較的容易である。一方、加圧工法では、被着体をその裏側から熱板５の方へ押し付けるので、該被着体がサンバイザやクッション類などであれば、内部に充填した発泡材を損傷しないように、転写圧力および転写時間を正確に調整することが必要である。   If the adherend is a sheet material 20 as shown in the drawing, it is relatively easy to transfer the thermal transfer label 22 at a high pressure using a pressure method. On the other hand, in the pressurization method, the adherend is pressed from the back side toward the hot platen 5, so if the adherend is a sun visor, cushions, or the like, transfer is performed so as not to damage the foam material filled therein. It is necessary to accurately adjust the pressure and transfer time.

（３）加減圧工法（図４参照）
高圧転写の目的で減圧工法と加圧工法を組み合わせた工法である。加減圧工法では、装置下方において、熱板５の周囲の密封空間１６を減圧するとともに、装置上方において、被着体２０の裏面側の密封空間４０へ圧縮空気を送り込む。この結果、被着体２０を熱板５に押し付け、該被着体と熱板５との間に位置する熱転写ラベル３８および被着体２０に熱と圧力を加え、該ラベルを被着体２０に熱圧着する。 (3) Pressurization method (see Fig. 4)
This method combines the decompression method and the pressure method for the purpose of high-pressure transfer. In the pressurization / decompression method, the sealed space 16 around the hot platen 5 is depressurized below the apparatus, and compressed air is fed into the sealed space 40 on the back side of the adherend 20 above the apparatus. As a result, the adherend 20 is pressed against the hot plate 5, heat and pressure are applied to the thermal transfer label 38 and the adherend 20 positioned between the adherend and the hot plate 5, and the label is attached to the adherend 20. Thermocompression bonded to.

加減圧工法を実施できる装置は、図４の装置以外にも存在する。例えば、図５に示す熱転写機５１は、曲面を有するシート状の被着体５２に熱転写ラベル５４を転写できる。固定基部５６において、熱板５８は球面状に突出し、該熱板周辺の環状溝である空間６０には通路６２を形成する。通路６２の小径分岐路６４は、熱転写ラベル５４を事前に熱板５８に吸着させるために形成し、他の手段でラベル５４を事前に静止できるならば設けなくてもよい。一方、加圧用プレート６６は、熱板上方において昇降自在に取り付け、その下面が球面状に凹んでおり、該プレートには通路６８を形成する。   There are apparatuses other than the apparatus shown in FIG. For example, the thermal transfer machine 51 shown in FIG. 5 can transfer the thermal transfer label 54 to a sheet-like adherend 52 having a curved surface. In the fixed base portion 56, the heat plate 58 protrudes in a spherical shape, and a passage 62 is formed in a space 60 that is an annular groove around the heat plate. The small-diameter branch path 64 of the passage 62 is formed to adsorb the thermal transfer label 54 to the hot plate 58 in advance, and may not be provided if the label 54 can be stopped in advance by other means. On the other hand, the pressurizing plate 66 is mounted so as to be movable up and down above the hot plate, and its lower surface is recessed in a spherical shape, and a passage 68 is formed in the plate.

転写の際には、熱転写ラベル５４および被着体５２を固定熱板５８の上に載せ、プレート６６を矢印方向に下降させると、該プレート周辺と基部５６の表面とで被着体５２を挟着する。この状態で、通路６２から密封空間６０内の大気を吸引して被着体５２を熱板５８に吸着させる一方、通路６８から圧縮空気を空間７０内へ送り込むと、湾曲状の密封空間７０を高圧化して被着体５２を熱板５８の方に押し付ける。この際に、転写ラベル５４がある程度通気性を有していれば、分岐路６４によって被着体５２を熱板５８に直接吸着することも可能である。   When transferring, when the thermal transfer label 54 and the adherend 52 are placed on the fixed hot plate 58 and the plate 66 is lowered in the direction of the arrow, the adherend 52 is sandwiched between the periphery of the plate and the surface of the base 56. To wear. In this state, the atmosphere in the sealed space 60 is sucked from the passage 62 to adsorb the adherend 52 to the heat plate 58, and when compressed air is sent into the space 70 from the passage 68, the curved sealed space 70 is formed. The pressure is increased and the adherend 52 is pressed against the hot plate 58. At this time, if the transfer label 54 has a certain degree of air permeability, the adherend 52 can be directly adsorbed to the hot plate 58 by the branch path 64.

また、図６に示す熱転写機７３では、加圧工法の側を下方に固定し、減圧工法の側が矢印方向に昇降自在に稼働させる。昇降プレート７４の下側には可動熱板７６を突設し、該熱板周辺の環状溝である空間７８には通路８０を形成する。通路８０の小径分岐路８２は、熱転写ラベル８４を熱板７６に吸着させるために形成すると好ましい。一方、プレート下方の固定基部８６は、その上側が矩形状に凹んでおり、この凹部である空間８８に通路９０を形成する。   Further, in the thermal transfer machine 73 shown in FIG. 6, the pressure method side is fixed downward, and the pressure method side is operated so as to be movable up and down in the direction of the arrow. A movable hot plate 76 projects from the lower side of the elevating plate 74, and a passage 80 is formed in a space 78 that is an annular groove around the hot plate. The small-diameter branch path 82 of the passage 80 is preferably formed to adsorb the thermal transfer label 84 to the hot plate 76. On the other hand, the fixed base 86 below the plate is recessed in a rectangular shape on the upper side, and a passage 90 is formed in a space 88 that is the recess.

転写の際には、昇降プレート７４の熱板７６に転写ラベル８４を反対向きに吸着させてから、被着体９２を固定基部８６の上に載せ、プレート７４を矢印方向に下降させると、まず該プレートの周辺部と固定基部８６の周辺部とで被着体９２を挟着する。この状態で、通路８０から密封空間７８内の大気を吸引して被着体９２を熱板７６に吸着させてから、通路９０から圧縮空気を下方の密封空間８８内へ送り込むと、該空間を高圧化して被着体９２を熱板７６の方に押し付ける。   At the time of transfer, after the transfer label 84 is adsorbed in the opposite direction to the hot plate 76 of the elevating plate 74, the adherend 92 is placed on the fixed base 86 and the plate 74 is lowered in the direction of the arrow. The adherend 92 is sandwiched between the periphery of the plate and the periphery of the fixed base 86. In this state, when the atmosphere in the sealed space 78 is sucked from the passage 80 to adsorb the adherend 92 to the heat plate 76, and compressed air is sent into the lower sealed space 88 from the passage 90, the space is reduced. The pressure is increased and the adherend 92 is pressed against the hot plate 76.

次に、本発明を実施例に基づいて説明するが、本発明は実施例に限定されるものではない。図１は、本発明に係る減圧転写工法を実施するための熱転写機１の要部を示し、該転写機には可動の熱板は存在しない。     Next, the present invention will be described based on examples, but the present invention is not limited to the examples. FIG. 1 shows a main part of a thermal transfer machine 1 for carrying out the reduced pressure transfer method according to the present invention, and there is no movable hot plate in the transfer machine.

減圧転写用の熱転写機１は、標準的な寸法の熱転写ラベル２でも熱接着可能なように、例えば、寸法６０ｍｍ×１１０ｍｍの平坦な矩形端面３を有する固定熱板５を備え、該熱板は固定基部の基準面６から上方へ突出している。図示しないけれども、固定熱板５は、受け台４の上に設置し、ヒータを内蔵した中空金属製であり、約１００〜２５０℃の所望の温度に加熱することができる。熱板５の周囲の固定基部の基準面６は平坦であり、該熱板を取り囲むように矩形環状の耐熱性枠材７を基準面６から上方へ突設している。   The thermal transfer machine 1 for reduced-pressure transfer includes a fixed hot plate 5 having a flat rectangular end surface 3 having a size of 60 mm × 110 mm, for example, so that even a thermal transfer label 2 having a standard size can be thermally bonded. Projecting upward from the reference surface 6 of the fixed base. Although not shown, the fixed hot plate 5 is installed on the cradle 4 and is made of a hollow metal with a built-in heater, and can be heated to a desired temperature of about 100 to 250 ° C. The reference surface 6 of the fixed base around the heat plate 5 is flat, and a rectangular annular heat-resistant frame member 7 projects upward from the reference surface 6 so as to surround the heat plate.

環状枠材７は、硬質の耐熱ゴム製などであるので弾力性を有する。環状枠材７の先端面は、固定熱板５の端面３よりもわずかに高く、その高さの差は被着体８の形状や素材または熱転写ラベル２によって異なり、所望に応じて調整すればよい。また、熱板５の基部には、枠材７と熱板５との間の表面から通路１０を形成し、該通路は公知の真空ポンプ（図示しない）と接続する。   Since the annular frame member 7 is made of hard heat-resistant rubber or the like, it has elasticity. The front end surface of the annular frame member 7 is slightly higher than the end surface 3 of the fixed hot plate 5, and the difference in height differs depending on the shape and material of the adherend 8 or the thermal transfer label 2, and can be adjusted as desired. Good. In addition, a passage 10 is formed at the base of the hot plate 5 from the surface between the frame member 7 and the hot plate 5, and the passage is connected to a known vacuum pump (not shown).

図１において、被着体８は自動車のサンバイザであり、該サンバイザでは表皮１１の内部に発泡材などの芯材１２を充填するうえに、細い金属フレーム１４が内部に存在する。このサンバイザでは、その内部に介在する細い金属フレーム１４により、その厚みが部分的に異なっているので、従来のように、平坦な熱板を押し付けるだけでは熱転写ラベル２の表面全域に均一な圧力が掛からず、該転写ラベルの熱圧着が不完全になる。   In FIG. 1, an adherend 8 is an automobile sun visor. In the sun visor, a core 12 such as a foam material is filled inside a skin 11, and a thin metal frame 14 exists inside. In this sun visor, the thickness is partially different depending on the thin metal frame 14 interposed in the sun visor, so that a uniform pressure is applied to the entire surface of the thermal transfer label 2 just by pressing a flat heat plate as in the prior art. It does not hang, and the thermocompression bonding of the transfer label becomes incomplete.

熱転写ラベル２を被着体８に転写するには、固定熱板５の加熱端面３の上に転写ラベル２を裏向きに載せ、さらに被着体８のサンバイザを環状枠材７の上に載置する。このサンバイザは比較的肉厚で保形性を有し、表皮１１の下表面は平坦に近いので、環状枠材７の上に載せるだけで表皮１１は環状枠材７の先端面と密接する。この状態で通路１０から空間１６内の大気を吸引すると、サンバイザ表皮１１が環状枠材７の先端面と密着し、ついで密封の空間１６を減圧化してサンバイザ表皮１１の表面を固定熱板５に吸着させることにより、熱転写ラベル２の接着層をサンバイザ表皮１１に押し付け、該熱転写ラベルに対して、約２００℃の熱と約１.０ｋｇ／ｃｍ２の圧力を加えて熱転写することになる。 In order to transfer the thermal transfer label 2 to the adherend 8, the transfer label 2 is placed face down on the heating end surface 3 of the fixed hot plate 5, and the sun visor of the adherend 8 is placed on the annular frame member 7. Put. Since the sun visor is relatively thick and has shape retention, the lower surface of the skin 11 is almost flat, so that the skin 11 is in close contact with the tip surface of the annular frame 7 just by being placed on the annular frame 7. When the air in the space 16 is sucked from the passage 10 in this state, the sun visor skin 11 is brought into close contact with the front end surface of the annular frame member 7, and then the sealed space 16 is decompressed so that the surface of the sun visor skin 11 is fixed to the fixed heat plate 5. By adsorbing, the adhesive layer of the thermal transfer label 2 is pressed against the sun visor skin 11, and heat transfer is performed by applying heat of about 200 ° C. and pressure of about 1.0 kg / cm 2 to the thermal transfer label.

熱転写機１では、熱転写ラベル２の熱圧着に際して、該ラベルの表面全域に均一な圧力が掛かり、該転写ラベルを強固に熱圧着することができる。また、被着体８であるサンバイザの内部には加圧力が作用しないので、該サンバイザ自体に熱と力による変形および損傷を与えることがない。   In the thermal transfer machine 1, when the thermal transfer label 2 is thermocompression bonded, a uniform pressure is applied to the entire surface of the label, and the transfer label can be firmly thermocompression bonded. In addition, since no pressure is applied to the inside of the sun visor, which is the adherend 8, the sun visor itself is not deformed or damaged by heat and force.

実施例１で用いた熱転写機１を用いて、図２に示すように、被着体として、ワッペンのような浅い突出物１８を接着したシート材２０に熱転写ラベル２２を転写する。シート材２０は、ラミネート生地のように通気性を有しないことを要する。シート材２０は、突出物１８の存在により、その厚みが部分的に異なっているので、平坦な熱板を押し付けるだけでは熱転写ラベル２２の表面全域に均一な圧力が掛からずに熱圧着が不完全になる。   Using the thermal transfer machine 1 used in Example 1, as shown in FIG. 2, the thermal transfer label 22 is transferred to a sheet material 20 to which a shallow protrusion 18 such as a patch is bonded as an adherend. The sheet material 20 needs not to have air permeability like a laminate fabric. Since the thickness of the sheet material 20 is partially different due to the presence of the protrusion 18, simply pressing a flat heat plate does not apply a uniform pressure to the entire surface of the thermal transfer label 22, and the thermocompression bonding is incomplete. become.

熱転写ラベル２２をシート材２０に転写するには、固定熱板５の加熱端面の上に転写ラベル２２を裏向きに載せ、さらにシート材２０を環状枠材７の上に載置する。次に、環状枠材７と同じ平面形状の環状押さえ枠２４を用い、該押さえ枠と環状枠材７とでシート材２０を挟着すると、シート材２０は環状枠材７の先端面と密接する。この状態で通路１０から空間１６内の大気を吸引すると、密封空間１６を減圧化してシート材２０を固定熱板５に吸着し、熱転写ラベル２２の接着層をシート材２０に押し付け、該熱転写ラベルをシート材２０に熱圧着する。   In order to transfer the thermal transfer label 22 to the sheet material 20, the transfer label 22 is placed face down on the heating end surface of the fixed hot plate 5, and the sheet material 20 is further placed on the annular frame material 7. Next, when the annular holding frame 24 having the same planar shape as the annular frame member 7 is used and the sheet material 20 is sandwiched between the holding frame and the annular frame member 7, the sheet material 20 comes into close contact with the front end surface of the annular frame member 7. To do. When the air in the space 16 is sucked from the passage 10 in this state, the sealed space 16 is decompressed, the sheet material 20 is adsorbed to the fixed hot plate 5, the adhesive layer of the thermal transfer label 22 is pressed against the sheet material 20, and the thermal transfer label Is thermocompression bonded to the sheet material 20.

熱転写ラベル２２の熱圧着に際して、該ラベルの表面全域に均一な圧力が掛かり、該転写ラベルを熱圧着することができる。また、シート材２０には熱と圧力が殆ど作用しないので、該シート材に変形および熱損傷を与えることがない。   When the thermal transfer label 22 is thermocompression bonded, a uniform pressure is applied to the entire surface of the label, and the transfer label can be thermocompression bonded. Further, since heat and pressure hardly act on the sheet material 20, the sheet material is not deformed or thermally damaged.

図４は、本発明に係る加減圧転写工法を実施するための熱転写機３０を示し、該転写機は図１の熱転写機に加圧機能を付加している。加減圧転写用の熱転写機３０は、図１の熱転写機１に加えて、その上方に矩形状の加圧用プレート３２を昇降自在に取り付ける。プレート３２の下面において、耐熱性枠材７と対応させて矩形環状の枠材３４を固着し、該枠材３４は金属または耐熱性プラスチックなどであればよい。プレート３２には通路３６を形成し、該通路は公知のエアコンプレッサ（図示しない）と接続する。また、被着体は、図２に示すシート材２０と実質的に同一である。   FIG. 4 shows a thermal transfer machine 30 for carrying out the pressure-reducing transfer method according to the present invention, and the transfer machine adds a pressure function to the thermal transfer machine of FIG. In addition to the thermal transfer machine 1 of FIG. 1, the pressure transfer printing pressure thermal transfer machine 30 has a rectangular pressure plate 32 mounted thereon so as to be movable up and down. On the lower surface of the plate 32, a rectangular annular frame member 34 is fixed in correspondence with the heat resistant frame member 7, and the frame member 34 may be a metal or a heat resistant plastic. A passage 36 is formed in the plate 32, and the passage is connected to a known air compressor (not shown). Further, the adherend is substantially the same as the sheet material 20 shown in FIG.

熱転写ラベル３８をシート材２０に転写するには、固定熱板５の加熱端面の上に転写ラベル３８を裏向きに載せ、さらにシート材２０を環状枠材７の上に載置する。次に、プレート３２を矢印方向に下降させて、その枠材３４と環状枠材７とでシート材２０を挟着すると、シート材２０は環状枠材７の先端面と密接し、さらに該シート材とプレート３２の内部とにおいて密封空間４０を形成する。同時に、装置下方において密封空間１６が形成され、該空間は公知の真空ポンプ（図示しない）に連通する。   In order to transfer the thermal transfer label 38 to the sheet material 20, the transfer label 38 is placed face down on the heating end face of the fixed hot plate 5, and the sheet material 20 is further placed on the annular frame material 7. Next, when the plate 32 is lowered in the arrow direction and the sheet material 20 is sandwiched between the frame material 34 and the annular frame material 7, the sheet material 20 comes into close contact with the front end surface of the annular frame material 7, and the sheet A sealed space 40 is formed between the material and the inside of the plate 32. At the same time, a sealed space 16 is formed below the apparatus, and this space communicates with a known vacuum pump (not shown).

この状態で、装置下方において、通路１０から密封空間１６内の大気を吸引すると、該空間を減圧化してシート材２０を固定熱板５に吸着させる。一方、装置上方において、通路３６から高圧空気を空間４０内へ送り込むと、密封空間４０を高圧化してシート材２０を固定熱板５の方に押し付ける。この結果、熱転写ラベル３８の接着層をシート材２０により強く押し付けることができ、該熱転写ラベルをシート材２０に熱圧着する。   In this state, when the atmosphere in the sealed space 16 is sucked from the passage 10 below the apparatus, the space is decompressed and the sheet material 20 is adsorbed to the fixed heat plate 5. On the other hand, when high-pressure air is fed into the space 40 from the passage 36 above the apparatus, the pressure of the sealed space 40 is increased and the sheet material 20 is pressed toward the fixed hot platen 5. As a result, the adhesive layer of the thermal transfer label 38 can be strongly pressed against the sheet material 20, and the thermal transfer label is thermocompression bonded to the sheet material 20.

熱転写ラベル３８の熱圧着に際して、該ラベルの表面全域に均一な圧力が掛かり、該転写ラベルをほぼ完全に熱圧着することができる。また、シート材２０には熱と圧力が殆ど作用しないので、該シート材に変形および損傷を与えることが少ない。   When the thermal transfer label 38 is thermocompression bonded, a uniform pressure is applied to the entire surface of the label, and the transfer label can be thermocompression bonded almost completely. Moreover, since heat and pressure hardly act on the sheet material 20, the sheet material is rarely deformed and damaged.

１ 減圧転写用の熱転写機
２ 熱転写ラベル
３ 端面
５ 固定熱板
６ 固定基部
７ 環状枠材
８ 被着体
１６ 密封空間
２４ 押さえ枠
３０ 加減圧転写用の熱転写機 DESCRIPTION OF SYMBOLS 1 Thermal transfer machine for pressure reduction transfer 2 Thermal transfer label 3 End surface 5 Fixed hot plate 6 Fixed base 7 Annular frame material 8 Adhering body 16 Sealing space 24 Holding frame 30 Thermal transfer machine for pressure reduction transfer

服飾品や自動車のサンバイザの生産工場において、裁断パーツおよび表皮単独にラベルを熱転写してから縫製を行って完成品を製造すると、生産工程中に加工不良が発生して中間品を廃棄すると、最初のラベル転写作業が無意味になり、熱圧着済みの転写ラベルが無駄になってしまう。また、多品種少量生産では、転写模様の有無や変更によって裁断パーツ数が激増して生産管理が煩雑になり、縫製間違いが多発するおそれがあるので、多品種少量生産への対応を考慮し、完成品を得た後の最終工程において熱転写ラベルを転写することを望まれている。 In a production factory for apparel and automobile sun visors, when a label is heat-transferred to the cut parts and the skin alone and then a finished product is manufactured, processing defects occur during the production process and the intermediate product is discarded. The label transfer operation becomes meaningless, and the heat-pressed transfer label is wasted. Also, in high-mix low-volume production, the number of cutting parts increases dramatically due to the presence or change of the transfer pattern, making production control complicated and sewing errors may occur frequently. It is desired that you transfer a heat transfer label in the final step after obtaining the finished product.

一方、熱転写ラベルを被着体に圧着させるための設備つまり熱転写機は、熱と圧力と時間を正確にコントロールする機能が必要であり、圧力に関しては熱転写ラベルの寸法に依存し、通常、圧力３〜２０００ｋｇ／ｃｍ２の出力を有している。転写ラベル用の熱転写機の出力は、寸法５０×１００ｍｍの標準的な熱転写ラベルの場合であると、５０ｋｇ以上に達し、この種の大出力の熱転写機では、機械フレームの強度を高めた設計を要するうえに、１００ｋｇ以上の大型で高重量になって５０万円以上の高価な設備になってしまう。このため、経費節減を重要視するユーザーは、標準寸法以上の転写ラベル用の熱転写機についても、その販売コストをダウンすることを強く要求している。 On the other hand, the equipment for pressing the thermal transfer label to the adherend, that is, the thermal transfer machine, needs to have a function of accurately controlling the heat, pressure and time. The pressure depends on the size of the thermal transfer label, and usually the pressure 3 It has an output of ˜2000 kg / cm 2 . The output of the thermal transfer machine for transferring labels, if it is the case of a standard thermal transfer label dimensions 50 × 100 mm, reaching the 50k g or more, the thermal transfer machines of the large output of this kind, an increased strength of the machine frame In addition to the need for design, the large and heavy weight of 100 kg or more results in expensive equipment of 500,000 yen or more. For this reason, users who place importance on cost savings are strongly demanding to reduce the sales cost of thermal transfer machines for transfer labels larger than the standard size.

Claims (4)

熱板を有する熱転写機を用いて熱転写ラベルを被着体に熱圧着する際に、熱板の加熱端面と被着体との間に熱転写ラベルを介在させ、熱板の加熱端面、熱転写ラベルおよび被着体を含む空間を密閉状態にしてから、この空間を減圧化して被着体の表面を熱板に吸着させることにより、熱転写ラベルを被着体の表面に押し付け、該熱転写ラベルに実質的に熱と圧力を加えることで熱圧着する減圧転写工法。   When a thermal transfer label is thermally bonded to an adherend using a thermal transfer machine having a hot plate, the thermal transfer label is interposed between the heating end surface of the hot plate and the adherend, and the heating end surface of the hot plate, the thermal transfer label, and After the space including the adherend is sealed, the space is decompressed and the surface of the adherend is adsorbed to the heat plate, so that the thermal transfer label is pressed against the surface of the adherend. Depressurization transfer method that thermocompression bonding by applying heat and pressure. 熱板を有する熱転写機を用いて熱転写ラベルを被着体に熱圧着する際に、熱板の加熱端面と被着体との間に熱転写ラベルを介在させ、熱転写ラベルを配置する被着体の背後の空間を密閉状態にしてから、この空間を加圧化して被着体の表面を熱板に圧着させることにより、熱転写ラベルを被着体の表面に押し付け、該熱転写ラベルを熱と圧力を加えることで熱圧着する加圧転写工法。   When a thermal transfer label is thermocompression bonded to an adherend using a thermal transfer machine having a thermal plate, the thermal transfer label is interposed between the heating end surface of the thermal plate and the adherend, and the thermal transfer label is disposed. After the space behind is sealed, the space is pressurized and the surface of the adherend is pressure-bonded to the hot plate, thereby pressing the heat transfer label against the surface of the adherend and applying heat and pressure to the heat transfer label. A pressure transfer method that is thermocompression bonded. 熱板を有する熱転写機を用いて熱転写ラベルを被着体に熱圧着する際に、熱板の加熱端面と被着体との間に熱転写ラベルを介在させ、熱板の加熱端面、熱転写ラベルおよび被着体を含む空間を密閉状態にしてから減圧化するとともに、熱転写ラベルを配置する被着体の背後の空間を密閉状態にしてから加圧化し、被着体の表面を熱板に吸着させると同時にその表面を熱板に圧着させることにより、熱転写ラベルを被着体の表面に押し付け、該熱転写ラベルを熱と圧力を加えることで熱圧着する加減圧転写工法。   When a thermal transfer label is thermally bonded to an adherend using a thermal transfer machine having a hot plate, the thermal transfer label is interposed between the heating end surface of the hot plate and the adherend, and the heating end surface of the hot plate, the thermal transfer label, and The space containing the adherend is sealed and then decompressed, and the space behind the adherend on which the thermal transfer label is placed is sealed and pressurized, and the surface of the adherend is adsorbed to the hot plate. At the same time, a pressure-reducing transfer method in which the surface of the thermal transfer label is pressed against the surface of the adherend by pressing the surface against a hot plate, and the thermal transfer label is thermocompression bonded by applying heat and pressure. 被着体の通気性を低下させるために、該被着体の裏面に樹脂コーティングまたはフィルムを貼着する請求項１，２または３記載の工法。   The method according to claim 1, 2 or 3, wherein a resin coating or a film is adhered to the back surface of the adherend in order to reduce the air permeability of the adherend.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1110997A (en) * 1997-06-25 1999-01-19 欣司 ▲広▼田 Manufacture of printing surface on surface of object
JP2001073271A (en) * 1999-07-08 2001-03-21 Toray Ind Inc Fabric for thermally transferring printing and its production process
JP2001199417A (en) * 1999-11-11 2001-07-24 Topy Ind Ltd Method for transferring design to wheel cap
JP2001329474A (en) * 2000-05-18 2001-11-27 Nisshin Steel Co Ltd Thermal transfer dyeing method and thermal transfer printer
JP2002019464A (en) * 2000-07-07 2002-01-23 Japan Polymer-Ku Kk Warning indication part in sun visor of automobile, and forming method therefor
JP2002309489A (en) * 2001-04-17 2002-10-23 Komatsu Seiren Co Ltd Printing sheet
JP2004058599A (en) * 2002-07-31 2004-02-26 Shin Etsu Polymer Co Ltd Molded article with surface decoration and manufacturing method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1110997A (en) * 1997-06-25 1999-01-19 欣司 ▲広▼田 Manufacture of printing surface on surface of object
JP2001073271A (en) * 1999-07-08 2001-03-21 Toray Ind Inc Fabric for thermally transferring printing and its production process
JP2001199417A (en) * 1999-11-11 2001-07-24 Topy Ind Ltd Method for transferring design to wheel cap
JP2001329474A (en) * 2000-05-18 2001-11-27 Nisshin Steel Co Ltd Thermal transfer dyeing method and thermal transfer printer
JP2002019464A (en) * 2000-07-07 2002-01-23 Japan Polymer-Ku Kk Warning indication part in sun visor of automobile, and forming method therefor
JP2002309489A (en) * 2001-04-17 2002-10-23 Komatsu Seiren Co Ltd Printing sheet
JP2004058599A (en) * 2002-07-31 2004-02-26 Shin Etsu Polymer Co Ltd Molded article with surface decoration and manufacturing method thereof

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