WO2013084483A1 - 基材への塗布方法 - Google Patents

基材への塗布方法 Download PDF

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Publication number
WO2013084483A1
WO2013084483A1 PCT/JP2012/007783 JP2012007783W WO2013084483A1 WO 2013084483 A1 WO2013084483 A1 WO 2013084483A1 JP 2012007783 W JP2012007783 W JP 2012007783W WO 2013084483 A1 WO2013084483 A1 WO 2013084483A1
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WO
WIPO (PCT)
Prior art keywords
substrate
coating
roll
applicator roll
coating liquid
Prior art date
Application number
PCT/JP2012/007783
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English (en)
French (fr)
Japanese (ja)
Inventor
小林　弘和
佐々木　成人
Original Assignee
Ｊｆｅスチール株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2011269617A external-priority patent/JP5970799B2/ja
Priority claimed from JP2011269616A external-priority patent/JP5970798B2/ja
Application filed by Ｊｆｅスチール株式会社 filed Critical Ｊｆｅスチール株式会社
Priority to CN201280059634.3A priority Critical patent/CN103974783B/zh
Priority to IN3862CHN2014 priority patent/IN2014CN03862A/en
Priority to KR1020147017288A priority patent/KR101778837B1/ko
Publication of WO2013084483A1 publication Critical patent/WO2013084483A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified

Definitions

  • the present invention relates to a coating method for coating a substrate with a multilayer coating solution.
  • various coating films are formed on the substrate surface in order to impart performance such as corrosion resistance, workability, aesthetics, and insulation to a continuously running substrate substrate such as a steel plate.
  • a roll coater roll coater is generally used, and a two-roll coater using two rolls or a three-roll coater using three rolls is widely used.
  • the 3-roll coater has become a mainstream coating method because it has excellent controllability of the coating thickness and has a relatively beautiful surface appearance.
  • the three-roll coater adjusts the amount of coating liquid picked up by the pick-up roll 11 and the pick-up roll 11 that draws up the coating liquid from the coating coater liquid-in-the-pan 13 filled with the coating liquid as shown in FIG.
  • a doctor roll metering roll 12 and an applicator roll applicator roll 5 that transfers the adjusted coating solution from the pickup roll 11 to the substrate 1 are configured.
  • the direction of rotation of each roll may be a reverse rotation that rotates in the opposite direction or a natural rotation that rotates in the same direction at the close point between the rolls or at the close point, but in general the reverse rotation is compared Since a smooth coating surface can be easily obtained, reverse rotation is often performed between the applicator roll 5 and the substrate 1.
  • the applicator roll 5 uses a rubber roll in which rubber is lined on a steel roll so as not to damage the surface of the substrate 1.
  • roping ribbing As a typical coating defect of a roll coater including a three-roll coater, there is a streak-like appearance defect of streak-like mark that occurs in the roll circumferential direction called roping ribbing. This is known as a defect that occurs when the fluid pressure fluctuation of the liquid meniscus between the rolls and between the roll and the substrate exceeds the effect of stabilizing the surface tension. It is more likely to occur when a coating solution having a higher coefficient is used. For this reason, it is difficult to apply a liquid film beautifully at high speed with a high-viscosity coating liquid.
  • the present invention has been made in view of such circumstances, and a substrate that can be beautifully applied with a thin film at high speed when a multilayer coating solution is applied to a continuously running substrate using a roll coater.
  • the object is to provide a method for applying to the skin.
  • the gist of the present invention is as follows. [1] Supplying a multilayer coating liquid to a rotating applicator roll by a die coater, and then bringing the applicator roll into contact with a continuously running substrate to transfer the multilayer coating liquid to the substrate.
  • the applicator roll rotates in the opposite direction to the substrate at the contact portion with the substrate, and the multi-layer coating solution supplied by the die coater has a viscosity coefficient of ⁇ 1 that forms the lowest layer on the applicator roll.
  • the viscosity coefficient of the coating liquid forming the upper layer is ⁇ 2, ⁇ 1 ⁇ 2, and the multilayer coating liquid remaining on the applicator roll that is not transferred to the substrate is removed from the applicator roll.
  • a multilayer coating liquid is supplied to a rotating intermediate roll by a die coater, then the multilayer coating liquid is transferred from the intermediate roll to a rotating applicator roll, and then the applicator roll is continuously transferred.
  • the intermediate roll rotates in a direction opposite to the applicator roll at a contact portion with the applicator roll, and the applicator roll is
  • the multi-layer coating solution that rotates in the direction opposite to the substrate at the contact portion and is supplied by the die coater has a viscosity coefficient ⁇ 1 of the coating solution that forms the lowermost layer on the applicator roll, and the coating solution that forms the upper layer.
  • the viscosity coefficient is ⁇ 2, ⁇ 1 ⁇ 2, and the multi-layer coating remaining on the intermediate roll without being transferred to the applicator roll And / or coating method for a substrate and removing the remaining layers of coating liquid to the applicator roll is not transferred to the substrate from the intermediate rolls and / or the applicator roll.
  • the same coating liquid as the coating liquid that forms the lowermost layer on the applicator roll is pre-coated on the base material by the coater. After the pre-coating, while the pre-coated coating solution on the substrate is in a liquid state, the applicator roll performs transfer to the substrate while rotating in the opposite direction to the substrate at the contact portion with the substrate.
  • the substrate Before pre-coating the substrate, the substrate is pre-coated with the same coating solution as the coating solution that forms the lowermost layer on the applicator roll. 6. The method for coating onto a substrate according to any one of [3] to [5], wherein the pre-coating is performed while the pre-pre-coated coating liquid is in a liquid state after the pre-pre-coating. [7]
  • the applicator roll uses a rubber roll obtained by lining rubber on a metal roll, The method for coating a substrate according to any one of [1] to [6], wherein the die coater generates a negative pressure upstream of the coating part.
  • a multilayer coating solution can be beautifully applied to a substrate with a thin film at high speed using a roll coater.
  • FIG. 1 is a side view of a coating apparatus according to an embodiment of the present invention.
  • FIG. 2 is a side view of a coating apparatus according to another embodiment of the present invention.
  • FIG. 3 is a side view of a coating apparatus according to another embodiment of the present invention.
  • FIG. 4 is a side view of a coating apparatus according to another embodiment of the present invention.
  • FIG. 5 is an enlarged view of the slit die coater according to the embodiment of the present invention.
  • FIG. 6 is a side view of a coating apparatus according to another embodiment of the present invention.
  • FIG. 7 is a side view of a coating apparatus according to a conventional embodiment.
  • FIG. 8 is a side view of a coating apparatus according to a conventional embodiment.
  • FIG. 9 is a side view of a coating apparatus according to another conventional embodiment.
  • FIG. 10 is a side view of a coating apparatus according to another conventional embodiment.
  • FIG. 1 shows one embodiment of a coating method on a substrate of the present invention.
  • 1 is a base material
  • 2 is a coating liquid collection container
  • 3 is a coating liquid
  • 4 is an intermediate roll
  • 5 is an applicator roll
  • 6 is a scraping device
  • 7 is a slit die coater
  • 8 is a backup roll.
  • the multilayer coating solution is supplied from the slit die coater 7 to the intermediate roll 4, then transferred to the applicator roll 5 through the intermediate roll 4, and transferred and applied to the substrate 1.
  • the intermediate roll 4 uses a flat roll whose surface is mirror-finished. The intermediate roll 4 rotates in the opposite direction to the applicator roll 5 at the contact portion with the applicator roll 5, and the applicator roll 5 rotates in the opposite direction to the substrate 1 at the contact portion with the substrate 1. Further, a scraping device 6 is installed on the intermediate roll 4 in order to remove the coating liquid that is not transferred to the applicator roll 5 and remains on the intermediate roll 4.
  • the viscosity coefficient ⁇ 2 of the coating liquid forming the upper layer is Let ⁇ 1 ⁇ 2.
  • the line speed and roll peripheral speed conditions that are the limit of occurrence of roping and the like are governed by the physical properties of the coating solution that forms the lowermost layer, and the coating solution that forms the upper layer is used as a high-viscosity coating solution. Even in this case, the appearance can be improved and the substrate speed can be increased.
  • the upper layer can be made thinner, and a highly viscous coating solution can be applied in a thin film.
  • the said upper layer is a layer formed on the lowest layer.
  • a scraping device such as a scraping blade is provided on the intermediate roll to which the coating liquid is supplied by the die coater, and the multilayer coating liquid remaining without being transferred is removed from the intermediate roll.
  • a scraping device can be installed on the applicator roll. Any scraper can be used as long as the coating liquid can be scraped off.
  • a method of installing a blade blade or a metal blade or a rubber blade is simple. The material of the blade may be metal or rubber as long as uniform scraping can be performed.
  • the speed ratio is set to 0.6 ⁇ V 3 / V 1 ⁇ 1.2 and 0.6 More preferably, ⁇ V 1 / V 2 ⁇ 1.2.
  • the rotational speed of the applicator roll and the rotational speed of the intermediate roll are roll peripheral speeds.
  • the applicator roll is preferably a rubber roll with a rubber lining on the surface of the metal roll.
  • the rubber lining thickness is preferably about 5 to 40 mm.
  • the rubber hardness is preferably about 40Hs to 80Hs.
  • the present invention does not require a backup roll in which roll coaters are arranged on both sides of the base material. It is also applicable to simultaneous application on both sides.
  • FIG. 2 shows another embodiment of the coating method on the substrate of the present invention.
  • the intermediate roll 4 is not provided, and the other symbols are the same as those in FIG.
  • a multilayer coating solution is supplied from the slit die coater 7 to the applicator roll 5, and then transferred and applied to the substrate 1.
  • the applicator roll 5 rotates in the direction opposite to the base material 1 at the contact portion with the base material 1.
  • a scraping device 6 is installed on the applicator roll 5 in order to remove the coating liquid that has not been transferred to the substrate 1 and remains on the applicator roll 5.
  • the amount of the base material to be applied is small, it can be stably applied by the method shown in FIG. 2, but when the base material is large and continuous application is required, the applicator roll is worn out and has a non-uniform shape. In some cases, coating defects may occur. Therefore, when mass production in continuous operation is performed, the method of FIG. 1 is preferable.
  • FIG. 3 shows another embodiment of the application method to the substrate of the present invention.
  • 1 is a base material
  • 2 is a coating liquid recovery container
  • 3 is a coating liquid
  • 4 is an intermediate roll
  • 5 is an applicator roll
  • 6 is a scraping device
  • 7 is a slit die coater
  • 8 is a backup roll
  • 14 is a precoater.
  • Pre-coater the multilayer coating solution is supplied from the slit die coater 7 to the intermediate roll 4, then transferred to the applicator roll 5 through the intermediate roll 4, and transferred and applied to the substrate 1.
  • the intermediate roll 4 uses a flat roll whose surface is mirror-finished.
  • the intermediate roll 4 rotates in the opposite direction to the applicator roll 5 at the contact portion with the applicator roll 5, and the applicator roll 5 rotates in the opposite direction to the substrate 1 at the contact portion with the substrate 1.
  • a scraping device 6 is installed on the intermediate roll 4 in order to remove the coating liquid that is not transferred to the applicator roll 5 and remains on the intermediate roll 4.
  • the same coating liquid as the coating liquid that forms the lowermost layer on the applicator roll 5 can be pre-coated on the base material 1.
  • a precoater 14 is installed. Then, after pre-coating, transfer from the applicator roll 5 to the substrate 1 is performed while the pre-coated coating liquid is in a liquid state.
  • the same coating solution that forms the lowermost layer on the applicator roll is used among the multilayer coating solutions supplied to the applicator roll by the die coater.
  • the pre-coating it is possible to suppress air entrainment from the upstream side of the travel line of the base material when transferring by the applicator roll.
  • the coating liquid used for the pre-coating passes between the applicator roll and the base material and enters between the applicator roll and the base material by performing the pre-coating using the same coating liquid as the lowermost layer, the liquid film of the lowermost layer The coating can be performed stably without interfering with the stabilization effect due to.
  • the effect of stabilizing the meniscus of the coating liquid is reduced and streak defects are likely to occur.
  • the liquid film thickness of the precoat has little effect on the appearance, but the mixing of bubbles and the like has an effect because it passes between the applicator roll and the substrate. Therefore, in order to prevent air bubbles from being mixed during pre-coating, it is possible to create a beautiful coating film with even less air bubbles by pre-coating the base material with the same coating liquid as the coating liquid to be pre-coated before pre-coating ( (See FIG. 6).
  • FIG. 4 shows another embodiment of the coating method on the substrate of the present invention.
  • the intermediate roll 4 is not provided, and the other symbols are the same as those in FIG.
  • a multilayer coating solution is supplied from the slit die coater 7 to the applicator roll 5, and then transferred and applied to the substrate 1.
  • the applicator roll 5 rotates in the direction opposite to the base material 1 at the contact portion with the base material 1.
  • a scraping device 6 is installed on the applicator roll 5 in order to remove the coating liquid that has not been transferred to the substrate 1 and remains on the applicator roll 5.
  • the same coating liquid as the coating liquid that forms the lowermost layer on the applicator roll 5 can be pre-coated on the base material 1.
  • a precoater 14 is installed. Then, after pre-coating, transfer from the applicator roll 5 to the substrate 1 is performed while the pre-coated coating liquid is in a liquid state.
  • the amount of the base material to be applied is small, it can be stably applied by the method shown in FIG. 4, but when the base material is large and continuous application is required, the applicator roll is worn out and has a non-uniform shape. In some cases, coating defects may occur. Therefore, when mass production is performed in continuous operation, the method of FIG. 3 is preferable.
  • FIG. 5 is an enlarged view of the slit die coater 7.
  • the slit die coater 7 when two layers of coating liquid are applied to the substrate, the slit die coater 7 includes two coating liquid supply units 7a and 7b for supplying each liquid as shown in FIG.
  • a suction suction slot 7c for generating a negative pressure can be provided on the upstream side of the section.
  • the rotation of the intermediate roll or applicator roll causes an air flow to accompany the coating liquid supply unit. Therefore, if there is no suction mechanism, the probability of air entrainment occurring in the liquid film increases, which may result in coating defects.
  • the above problem is solved by generating a negative pressure by the suction 7c, the meniscus shape of the supplied coating liquid is stably maintained, and a gap several times as large as the film thickness formed on the substrate is formed. It becomes possible to ensure, and it becomes possible to apply stably by reducing the influence of gap fluctuation due to fluctuations in substrate thickness.
  • the supply of the coating liquid to the slit die coater 7 can be performed by, for example, a pump that can stably discharge a constant flow rate.
  • the coating liquid can be stably supplied onto the intermediate roll or applicator roll by adjusting the negative pressure of the suction 7c, the gap between the intermediate roll or applicator roll to which the coating liquid is supplied and the tip of the slit die coater 7 and the like. can do.
  • the slit die coater 7 has a coating liquid supply unit (not shown) for two-layer coating and a suction (not shown).
  • the material of each roll is a flat surface metal roll in which the intermediate roll 4 is applied with hard chrome plating, and the applicator roll 5 is a rubber roll in which rubber is lined.
  • Rubber lining thickness is 20mm, rubber is urethane rubber, hardness is Hs55 °.
  • the roll diameter of each roll is 150 mm for both the intermediate roll 4 and the applicator roll 5.
  • Five types of coating solutions were used, with viscosities of 1.5 mPa ⁇ s, 2 mPa ⁇ s, 4 mPa ⁇ s, 10 mPa ⁇ s, 20 mPa ⁇ s, and solids concentrations of 4%, 6%, 8%, 13%, and 20%. It is.
  • the viscosity coefficient is the value at a liquid temperature of 20 ° C.
  • the liquid film thickness was adjusted to 10 ⁇ m for the two layers by changing the ratio of the upper and lower coating liquid thicknesses on the intermediate roll 4 in FIG. 1 and on the applicator roll 5 in FIG.
  • the case where the upper layer and lower layer coating liquids were changed was performed, and the appearance of the liquid film after drying and the cross section of the liquid film were confirmed in the same manner as in the inventive examples.
  • the appearance of the liquid film after drying was evaluated by cutting out the dried steel plate and visually and observing a TEM cross section. ⁇ for a smooth film without streaking, ⁇ for a slight streak that is hardly noticeable visually, ⁇ Those that can be seen are marked as x.
  • the liquid film had almost no mixing. Although a slight mixing was observed, the cross section to such an extent that the two layers could be distinguished was considered to be almost satisfactory. A case where the two layers were completely mixed and the two layers could not be distinguished was regarded as defective.
  • a galvanized steel plate is used as a base material.
  • the present invention is not particularly limited to a steel plate, but can be applied to other metal plates such as aluminum, paper, and films.
  • the applicator roll 5 and the pick-up roll 11 of the roll coater shown in FIG. 7 have the same specifications as the applicator roll and the intermediate roll of the invention example.
  • the doctor roll 12 also has the same specifications as the intermediate roll, and the gap between the doctor roll 12 and the pickup roll 11 is 60 ⁇ m.
  • the roll peripheral speed was adjusted so as to obtain an optimal appearance as appropriate, but each liquid viscosity was 1.5 ⁇ mPa ⁇ s, 2 ⁇ mPa ⁇ s, 4 ⁇ mPa ⁇ s, 10 ⁇ mPa ⁇ s.
  • the critical speed at which the external appearance evaluation is x is 550 mpm (meter per minute, m / min, hereinafter abbreviated as mpm), 390 mpm, 340 mpm, 180 mpm, 140
  • mpm meter per minute
  • 390 mpm 390 mpm
  • 340 mpm 180 mpm
  • 140 As the viscosity became mpm, the higher the viscosity of the coating solution, the lower the speed limit. It was impossible to apply a high-viscosity coating solution beautifully at high speed as in the present invention. Moreover, it was difficult to produce a beautiful thin film having a film thickness of 8 ⁇ m or less before drying due to the accuracy of the gap between rolls. When the rotational speed of the pick-up roll was lowered to make a thin film, roping occurred and the appearance became a streak pattern.
  • the slit die coater 7 has a coating liquid supply unit (not shown) for two-layer coating and a suction (not shown).
  • the material of each roll is a flat surface metal roll in which the intermediate roll 4 is applied with hard chrome plating, and the applicator roll 5 is a rubber roll in which rubber is lined.
  • Rubber lining thickness is 20mm, rubber is urethane rubber, hardness is Hs55 °.
  • the roll diameter of each roll is 150 mm for both the intermediate roll 4 and the applicator roll 5.
  • Five types of coating solutions were used, with viscosities of 1.5 mPa ⁇ s, 2 mPa ⁇ s, 4 mPa ⁇ s, 10 mPa ⁇ s, 20 mPa ⁇ s, and solids concentrations of 4%, 6%, 8%, 13%, and 20%. It is.
  • the viscosity coefficient is the value at a liquid temperature of 20 ° C.
  • the liquid film thickness was adjusted to 10 ⁇ m for the two layers by changing the ratio of the upper and lower coating liquid thicknesses on the intermediate roll 4 in FIG. 3 and on the applicator roll 5 in FIG.
  • the precoater apparatus used the same specification as an applicator roll by the 1 roll rotated in the reverse direction to a base material.
  • the case where the pre-precoat was performed was also performed under the conditions described in Table 2. As a result, it was confirmed that a beautiful coating film in which mixing of bubbles was further suppressed was obtained.
  • the appearance of the liquid film after drying was evaluated by cutting out the dried steel plate and visually and observing a TEM cross section. ⁇ for the case where a smooth film is obtained without streaking, ⁇ for the case where slight streaks that are hardly noticed by visual inspection are generated, ⁇ Is x. In addition, regarding bubbles mixed in, those that were hardly seen were marked as ⁇ . For those that can be confirmed a little, the result is x. In addition, as for the laminated state of the liquid film, it was determined that the liquid film had almost no mixing. Although a slight mixing was observed, the cross section to such an extent that the two layers could be distinguished was considered to be almost satisfactory. A case where the two layers were completely mixed and the two layers could not be distinguished was regarded as defective.
  • the galvanized steel plate was used as a base material in the said Example, it is not limited to a steel plate in particular, It applies to other metal plates, such as aluminum, paper, and a film.
  • the applicator roll was rotated in the direction opposite to that shown in FIG. 3 under the same application conditions as in Table 2. However, the laminated state could not be maintained, and the appearance was entirely streaked.
  • the roll coater applicator roll 5 and pickup roll 11 shown in FIG. 8 have the same specifications as the applicator roll and intermediate roll of Example 2.
  • the doctor roll 12 also has the same specifications as the intermediate roll, and the gap between the doctor roll 12 and the pickup roll 11 is 60 ⁇ m.
  • the roll peripheral speed was appropriately adjusted so as to obtain an optimum appearance.
  • the liquid viscosity was 1.5 ⁇ mPa ⁇ s, 2 ⁇ mPa ⁇ s, 4 ⁇ mPa ⁇ s, 10 ⁇ mPa ⁇ s.
  • the critical speed at which the external appearance evaluation is x is 550 mpm (meter per minute, m / min, hereinafter abbreviated as mpm), 390 mpm, 340 mpm, 180 mpm, 140
  • mpm meter per minute
  • 390 mpm 390 mpm
  • 340 mpm 180 mpm
  • 140 As the viscosity became mpm, the higher the viscosity of the coating solution, the lower the speed limit. It was impossible to apply a high-viscosity coating liquid beautifully at high speed as in the present invention example. Moreover, it was difficult to produce a beautiful thin film having a film thickness of 8 ⁇ m or less before drying due to the accuracy of the gap between rolls. When the rotational speed of the pick-up roll was lowered to make a thin film, roping occurred and the appearance became a streak pattern.

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PCT/JP2012/007783 2011-12-09 2012-12-05 基材への塗布方法 WO2013084483A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201280059634.3A CN103974783B (zh) 2011-12-09 2012-12-05 对基材进行涂布的方法
IN3862CHN2014 IN2014CN03862A (enrdf_load_stackoverflow) 2011-12-09 2012-12-05
KR1020147017288A KR101778837B1 (ko) 2011-12-09 2012-12-05 기재에의 도포 방법

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2011269617A JP5970799B2 (ja) 2011-12-09 2011-12-09 基材への塗布方法
JP2011269616A JP5970798B2 (ja) 2011-12-09 2011-12-09 基材への塗布方法
JP2011-269616 2011-12-09
JP2011-269617 2011-12-09

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KR (1) KR101778837B1 (enrdf_load_stackoverflow)
CN (1) CN103974783B (enrdf_load_stackoverflow)
IN (1) IN2014CN03862A (enrdf_load_stackoverflow)
WO (1) WO2013084483A1 (enrdf_load_stackoverflow)

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JP6283917B2 (ja) * 2014-09-18 2018-02-28 パナソニックＩｐマネジメント株式会社 塗膜物の製造方法および塗膜物の製造装置
TW201720532A (zh) * 2015-12-03 2017-06-16 台虹科技股份有限公司 薄膜塗佈裝置及薄膜塗佈方法
WO2020069733A1 (en) 2018-10-02 2020-04-09 Tata Steel Ijmuiden B.V. Method for treatment of galvanised or galvannealed steel
CN110302937A (zh) * 2019-03-10 2019-10-08 温州誉诚包装有限公司 一种人造皮革自动高效粘合机构

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JPS61111168A (ja) * 1984-11-06 1986-05-29 Konishiroku Photo Ind Co Ltd 塗布方法及び塗布装置
JPH0411969A (ja) * 1990-04-26 1992-01-16 Mitsubishi Kasei Corp シート状物にメタリック塗装を施す方法
JPH04100570A (ja) * 1990-08-16 1992-04-02 Mitsubishi Kasei Corp 連続塗装方法
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