JPH03111271A - Housing container - Google Patents

Abstract

PURPOSE:To make it possible to prevent water from evaporating from the contents and protect the contents from outer humid and also to easily open, by providing a container body forming a housing space for an ink-jet-head in conjunction with a plate member and providing a cut-tape arranged so as to cross the housing space in the plate member. CONSTITUTION:A container vessel is composed of a plate member 1 and a container body 2 to use as a united packed container. And this plate material 1 comprises a base layer 4, a cut tape 5, an aluminum foil 6 and an adhesive layer 7 from the non-adhesive side. The cut tape 5 having the same width with the interval of the perforation on the one side of the base layer 4 is bonded on the full length of the tearing-off direction of the base layer 4, along the perforation 11 to protrude from one end of base layer 4. And further, an aluminum foil 6 having an adhesive layer 7 is laminated on the base layer so that the adhesive surface directs upward. In this way, electric components requiring prevention of water evaporation and water proof faculty can be protected from deterioration of qualities and the vessel can be easily opened.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to blister packs that require prevention of moisture evaporation or moisture resistance of the contents, and must be easy to open. The present invention relates to a blister pack suitable for storing electrical components, and more particularly to a storage container for an inkjet head.

[Conventional technology] Conventional blister packs are made of hard polyvinyl chloride or high-impact polystyrene resin (HIPS) depending on the shape of the packaged item.
The item to be packaged is inserted into the recess of a container body (blister) made from a plastic sheet of styrene-butadiene copolymer resin or the like by vacuum forming or pressure forming, and then placed in a blister packaging machine and coated with adhesive in advance. It was made by heat-sealing it to a plate-shaped member and punching or cutting it.

The blister bag can be opened by making perforations in the plate-shaped member and tearing the plate-shaped member, or by gluing the plate-shaped member and the blister with an easy-to-open heat-sealing material, and removing the blister from the plate-shaped member. A method of peeling is used.

[Problems to be Solved by the Invention] When a blister pack is required to have moisture evaporation prevention properties and moisture resistance, it is possible to use a plastic material with low moisture permeability for the container body and a multilayer sheet containing aluminum foil for the plate-like member. It is common to use

In this case, in order to give the plate-like member sufficient rigidity,
A multilayer sheet made by laminating aluminum foil and paper is often used, but when the thickness of the paper is increased, heat sealing is performed from the back of the plate-shaped member, which makes it difficult for heat to transfer, lengthening the work time, and causing damage to the container itself. This has disadvantages such as difficulty in obtaining sufficient adhesion between the material and the plate-like member.

Especially when storing mechanical parts or electrical parts, sufficient adhesive strength is required between the container body and the plate-shaped member, for example, 2.0Kg7715.
mm (180° peel) or higher, and long-term storage at a temperature of 70'C or higher for environmental resistance testing is required, so an easy-to-open seal that can be heat-sealed at a low temperature is used to bond the container body and plate-shaped member. In many cases, it is not possible to use adhesive sealants. On the other hand, there is sufficient adhesion between the container body and the plate member (2.0Kg/15mm (180' peel)).
When this is obtained, it is difficult to open the container because strong force is required to separate the container and the plate-like member by hand.

Furthermore, in addition to sufficient adhesive strength between the container and the plate-shaped member, if the contents require moisture evaporation prevention or moisture-proofing properties, use a method of opening the plate by making perforations in the plate-shaped member as a means of opening. However, there were disadvantages in that it was difficult to ensure easy opening.

In particular, the above conditions are strictly required for storage containers for inkjet heads, and it has been difficult to achieve both such conditions and ease of opening.

The present invention solves the above-mentioned problems with conventional blister bags, and provides a blister bag that can prevent moisture from evaporating from the contents, protect the contents from external moisture, and is easy to open. In particular, it is an object of the present invention to provide a storage container that is particularly suitable for storing inkjet heads.

[Means to solve the problem]

The present invention includes a plate-like member and a container body that is joined to the plate-like member to form a storage space for an inkjet head, and the plate-like member has a cutout arranged so as to cross the storage space. This is a storage container for an inkjet head characterized by containing tape.

In particular, the plate member consists of a base layer, a cut tape, an aluminum foil, and an adhesive layer in order from the non-bonded surface, and the cut tape is longer than the entire length of the base layer in the tearing direction and protrudes from the base layer at one end. A notch is provided at the end of the plate-like member on both sides of the protrusion of the cut tape, and a perforation is provided in the base material layer along the side of the cut tape over the entire length in the tearing direction from the notch. A notch is provided in the portion of the periphery of the container body that overlaps with the side of the cut tape, and a welded portion extends from the notch in the direction in which the plate-like member is torn, and a welded portion that extends all around the periphery of the container body. The storage container described above is characterized in that the plate member and the container body are joined together.

According to the present invention, the cut tape facilitates opening. Furthermore, since the base material layer has perforations, it is easy to open, and since there are no perforations in the aluminum foil layer, moisture evaporation can be prevented and moisture resistance can be ensured. Further, when the container body is made of a plastic multilayer sheet containing polyvinylidene chloride M, it is preferable because a blister pack with even better moisture evaporation prevention properties and moisture proofing properties can be obtained.

Further, it is preferable that the plate-shaped member and the container body be joined by ultrasonic welding because the bonding between the plate-shaped member and the container body can be achieved reliably in a short time.

The inkjet head to be housed may be of any type. For example, a bubble jet recording head is mentioned, and its typical configuration and principle are described in, for example, U.S. Pat. Nos. 4,723,129 and 47,407.
There is one that uses the basic principle disclosed in the '96 specification. This method can be applied to both so-called on-demand type and continuous type, but in particular,
In the case of the on-demand type, an electrothermal transducer is placed corresponding to the sheet holding the liquid (ink) or the liquid path, and is connected to the electrothermal transducer that corresponds to the recorded information and causes a rapid temperature rise exceeding nucleate boiling. By applying at least one drive signal, the electrothermal transducer generates thermal energy and causes film boiling on the heat-active surface of the recording head, resulting in a liquid (ink) in one-to-one correspondence with the drive signal. Can form air bubbles inside. The growth and contraction of the bubble causes liquid (ink) to be ejected through the ejection opening to form at least one drop. When this drive signal is in the form of a pulse, bubble growth and contraction occur immediately and appropriately, so that liquid (ink) can be ejected with particularly excellent responsiveness. As this pulse-shaped drive signal, those described in US Pat. No. 4,463,359 and US Pat. No. 4,345,262 are suitable. Further, if the conditions described in US Pat. No. 4,313,124 concerning the temperature increase rate of the heat acting surface are adopted, even more excellent recording can be achieved.

The configuration of the recording head includes, in addition to the combined configuration of ejection ports, liquid paths, and electrothermal converters (straight liquid flow path or right-angled liquid flow path) as disclosed in the above-mentioned specifications, a heat acting section. US Pat. No. 4,558,333 and US Pat. No. 4,559,600 disclose a configuration in which the
There is also a configuration using the specification. In addition, Japanese Patent Application Laid-open No. 123670 of 1982 discloses a configuration in which a common slit is used as a discharge part for a plurality of electrothermal converters, and a hole that absorbs pressure waves of thermal energy is disclosed. JP-A No. 138461 of 1982, which discloses a configuration in which the
A configuration based on the publication may be used.

Furthermore, as a full-line type recording head having a length corresponding to the width of the maximum recording medium that can be recorded by the recording apparatus, the length can be increased by combining multiple recording heads as disclosed in the above-mentioned specification. Either a configuration that satisfies the above requirements or a configuration as a single recording head formed integrally may be used.

In addition, a replaceable chip-type recording head that is attached to the device body enables electrical connection to the device body and ink supply from the device body, or a chip-type recording head that is installed integrally with the recording head itself. There are also cartridge-type recording heads.

Hereinafter, the present invention will be explained in more detail with reference to the drawings.

Fig. 1 is an exploded perspective view showing an example of the storage container of the present invention in use, Fig. 2 is a plan view of the container as seen from the main body side, Fig. 3 is a plan view of the storage container as seen from the back side of the plate member, and FIG. 4 is a cross-sectional view of the container body and the plate member in a joined state, and FIG. 5 is a cross-sectional view when the container is opened.

This storage container is composed of a plate member 1 and a container body 2,
These are integrated and used as a package. The plate-like member 1 is composed of a base material layer 4, a cut tape 5, an aluminum foil 6, and an adhesive layer 7 from the non-bonding surface side. Base material 1i4
has perforations 11.11' parallel to the tearing direction (direction of arrow B in Figure 2).

As the material for the base layer 4, paperboard or a plastic sheet can be used from the viewpoint of tearability and rigidity.

As the paperboard, coated ball, uncoated ball, kraft ball, etc. can be used, and the thickness thereof is 0.5 to 2.
．． 0 mm is preferable, and 0.5 from the viewpoint of tearability and rigidity.
~0.8 mm is preferred. In the case of a plastic sheet, hard polyvinyl chloride resin or polypropylene resin can be used, and its thickness is preferably 0.1 to 0.8 mm from the viewpoint of tearability and rigidity.

The perforations 11 and 11' in the base material layer 4 can be provided when punching into the shape of a plate-like member.

The cut tape 5 is used to cut the plate member 1 when opening the storage container.
It is used for tearing the base material layer 4, and is longer than the entire length of the base material layer 4 in the tearing direction, and its width is the same as the perforation 11. provided in the base material layer 4.
The material of the cut tape 5 should preferably be the same width as the interval 11', since a large tension is applied when the plate member 1 is torn, so a film or sheet of biaxially oriented polyester, biaxially oriented polypropylene, or polycarbonate with high tensile strength is recommended. is preferably used, and the thickness thereof is preferably 25 μm to 200 μm from the viewpoint of tensile strength.

The aluminum foil 6 functions to keep the moisture permeability of the plate-like member l small, and its thickness needs to be 7 μm or more, but from the viewpoint of pinhole problems and ease of tearing with the cut tape 5, the thickness is 9 μm to 40 μm. is preferred.

The adhesive layer 7 serves to bond the container body 2 of the storage container and the plate-like member, and is made of a film made of polyethylene, polypropylene, ethylene-vinyl acetate copolymer, thermoplastic rubber, etc., laminated on the aluminum foil 6. Alternatively, it can be used by coating.

In addition, if it is necessary to print on the surface of the plate-like member 1, printing may be performed on the surface of the aluminum foil 6, but between the adhesive N7 and the aluminum foil 6 there is a plastic film that has printability and tearability. For example, films of cellophane, biaxially oriented polyethylene terephthalate, polyvinyl chloride, biaxially oriented polypropylene, etc. can also be laminated and used. The plate member 1 can be manufactured, for example, by the following method.

First, the base material layer 4 is punched out into a predetermined plate-like member shape. At this time, perforations 11.11' are provided in the base layer 4. Next, a cut tape 5 having the same width as the interval between the perforations 11 and 11' is attached to one side of the base layer 4 along the perforations over the entire length of the base layer 4 in the tearing direction, and one end of the base layer 4 is pasted. from 1
Laminate so that it protrudes by about 5 to 20 mm. Then, on top of this, an aluminum foil 6 having an adhesive layer 7 on one side is laminated and bonded so that the adhesive layer 7 is on the surface. Cut the aluminum foil 6 and cut the perforations 11 in the base layer 4 using the tape 5.
．． In order to tear with the same width as the interval 11', the adhesive force between the aluminum foil 6 and the cut tape 5 must be sufficiently strong, and when the aluminum foil 6 and the cut tape 5 are separated, the aluminum foil 6 is 1.5Kg715mm (1
It is preferable that the adhesive be bonded in such a way that it will break if the cut tape 5 is peeled off by 80" or more. Finally, on one protruding end of the cut tape 5 of the plate-like member 1, connect it to the perforation 11.11' and be located on both sides of the cut tape 5. A notch 9.9' is provided so as to do so.

By using a material with low moisture permeability for the container body 2,
It can satisfy the moisture evaporation prevention and moisture-proof properties of the contents.
From the viewpoint of heat resistance, moisture permeability, manufacturing cost, moldability, bondability, etc., we use a laminate sheet of polypropylene resin and polyvinylidene chloride resin, a laminate sheet of polyester resin and polyvinylidene chloride resin, or polypropylene resin.
A laminated sheet of polyvinylidene chloride resin and polyester resin is suitable. Forming into the shape of the container body can be performed by vacuum forming or pressure forming, and the total thickness of the laminated sheet is 0.5 mm to 2.0 m from the viewpoint of formability.
m is preferable, and the moisture permeability is 10 g/m" ・24 hr ・0.1 in order to prevent moisture evaporation of the contents and satisfy moisture resistance.
mm (40℃.

90% RH) or less is sufficient, and in order to satisfy this moisture permeability, the thickness of the polyvinylidene chloride resin in the laminated sheet is preferably 20 μm or more. The shaped container body 2 is provided with a tear cutout 10.10' in the peripheral edge 3. It is preferable that the interval between the notches 10° and 10' be the same as the width of the cut tape 5. Various methods can be used to join the container body 2 and the plate-like member l, but the adhesive strength should be 2.0 kg/l in order to prevent them from peeling off due to impact from drops or vibrations.
l 5 mm (180" peeling) or more is required, and it is most preferable to use ultrasonic welding from the viewpoint of workability and processing cost. The contents (packaged object) are placed on the plate-shaped member 1,
A container body 2 thermoformed into a predetermined shape is placed over the contents,
A portion 18.1 extending in the tearing direction from the entire circumference of the peripheral edge 3 of the container body 2 and the notch 10°"lO' of the peripheral edge 3
Welding can be performed by applying the horn of an ultrasonic welding machine to 8'. The width of the welded portions 8.18 and 18' (welded margin) is preferably 0.2 mm or more from the viewpoint of adhesive strength and moisture permeability.

To open the storage container, first grasp the cut tape 5 protruding from one end of the plate-like member 1 and pull it downward (in the direction of the arrow in FIG. 1) of the plate-like member 1. This is done by tearing along the perforations 9.9' to 11.11'.

At this time, the portion 12 between the notches 10° and 10' of the peripheral edge 3 of the container body 2 is also removed. As shown in FIG. 5, the contents can be taken out from the opening 13 of the plate-like member 1 thus formed.

The present invention is not limited in any way by the above procedure. For example, when manufacturing a plate-like member, instead of pasting a cut tape to the base material layer and then bonding the aluminum foil and base material layer as described above, the cut tape is pasted to the aluminum foil. The manufacturing procedure may be changed as appropriate, such as bonding the aluminum foil and the base material layer.

[Example] Example 1 Polypropylene 0.5 mm, polyvinylidene chloride 0.0
A multilayer sheet made by sequentially laminating polypropylene of 76 mm and 0.5 mm of polypropylene was formed by vacuum forming into the shape of the container body shown in FIG. 1. Minimum wall thickness of the container: 0.6 mm, peripheral wall thickness: A container body 2 was created by punching out notches 10 and 10' at the periphery.

On the other hand, as the base material layer 4, coated cardboard (450 g/m"
), punch it into the plate-like member shape shown in Fig. 1, and at the same time, punch out the perforations 11 and 11' shown in Fig. 3.
(with a spacing of 10 mm). Next, on one side of this coated cardboard, a biaxially oriented polyethylene terephthalate film (thickness 3
A cut tape 5 (width 10 mm) made of 8 μm) was attached via an adhesive 15. In this case, one end of the cut tape was aligned with the edge of the coated cardboard, and the other end was made to protrude from the edge of the coated cardboard. This protrusion becomes the part to pinch when opening the blister bag.

Separately, an adhesive layer 7 (mainly composed of ethylene vinyl acetate copolymer) is attached to one side of the aluminum foil 6 (thickness 9 μm).
A film with a thickness of 10 μm) was applied. After bonding the surface of the aluminum foil without the adhesive layer and the surface of the coated cardboard with the cut tape via adhesive 14, cutouts 9 and 9' are formed by punching, A plate member 1 was obtained.

Next, an inkjet recording head (200 g) 20 having an ejection port 21 and filled with ink is housed in the container body 2,
Together with the plate-like member 1, the adhesive N7 between the peripheral edge 3 of the container body and the plate-like member 1 is torn off from the welded part 8 and the cutout part 10, 10' extending over the entire circumference of the peripheral edge of the container body. Welding was performed using an ultrasonic welding machine at welding parts 18 and 18' extending in the direction (width of welding margin 0.3 mm).

After leaving the resulting package alone in a dry atmosphere at 60°C for one week, the amount of water evaporated from the ink filled in the recording head was examined by measuring the weight of the recording head, and it was found to be 0. A weight loss corresponding to 0.05 g of water evaporation was observed.

In addition, when we measured the opening force when tearing a plate-shaped member with a cut tape, it was 1.1 kg/10 mm (180
'Peeling).

Example 2 Polyester 0.10mm, polyvinylidene chloride 0.0
A container body was prepared in the same manner as in Example 1 using a multilayer sheet made by sequentially laminating polypropylene of 25 mm and 0.7 mm of polypropylene. At this time, the polyester was placed on the outer surface of the container.

In addition, coated cardboard (45,087 m”), biaxially oriented polyethylene terephthalate film (thickness 38 μm)
) Cut tape (width 10 mm), aluminum foil (thickness 15 μm), and adhesive layer (thickness 10 μm) mainly composed of polyolefin were laminated in order to form a plate-like member using a multilayer sheet in the same manner as in Example 1. Created.

The inkjet recording head was packaged in the same manner as in Example 1, and the amount of water evaporated from the recording head was measured to be 0.09 g. In addition, the opening force of the plate member is 1.2
The weight was 5 kg and 710 mm (180 @ peeled).

Comparative Example 1 Inkjet recording was packaged in the same manner as in Example 1 except that a polyvinyl chloride sheet (thickness 1.0 mm) was used for the container body. The amount of water evaporated from the ink of the packaged recording head was measured in the same manner as in Example 1 and found to be 0.
．． It was 42g.

Further, after being left in a dry atmosphere at 60° C. for one week, slight deformation of the container body was observed.

Comparative Example 2 Polypropylene 0.5 mm, polyvinylidene chloride 0.0
A container body was prepared in the same manner as in Example 1 using a multilayer sheet made by sequentially laminating polypropylene of 76 mm and 0.5 mm of polypropylene.

On the other hand, coated cardboard (450 g/m'') was punched out into the shape of a plate-like member shown in FIG. 1, and perforations were made to create a plate-like member.

An inkjet recording head was packaged using the plate member and container body thus obtained. The amount of moisture evaporated from the ink in the packaged recording head was measured in the same manner as in Example 1 and found to be 0.52 g.

[Effects of the Invention] By using the storage container of the present invention, electrical components and mechanical components that require moisture evaporation prevention and moisture resistance, especially inkjet recording heads, etc., can be protected over a long period of time without deteriorating their quality. be able to.

Furthermore, it is easy to open, and by pulling the cut tape, you can instantly open the package and take out the contents.

In addition, by using ultrasonic welding to join the container body and the plate-like member, sufficient adhesive strength can be obtained, and the work can be done in a short time.

[Brief explanation of drawings]

1 to 6 show an example of the storage container of the present invention,
Fig. 1 is a perspective view of the container, Fig. 2 is a plan view from the side of the container body, Fig. 3 is a plan view from the back of the plate-shaped member, and Fig. 4 shows the state in which the container body and the plate-shaped member are joined. 5 is a sectional view when the package is opened, and FIG. 6 is an exploded perspective view showing the state when the contents are stored. 1: Plate-shaped member 2: Container body 3: Container periphery 4: Base material layer 5: Cut tape 6: Aluminum foil 7: Adhesive layer 8.18.18': Welded part 9.9': Cutting of plate-shaped member Notch part 10.10': Notch part 11.11' of the container body
: Perforation 12: Part to be removed when opening the periphery of the container body 13: Opening part when opening 14.15: Adhesive 20: Stored item 21: Discharge port

Claims (1)

[Claims] 1. A container body comprising a plate-like member and a container body that is joined to the plate-like member to form a storage space for an inkjet head, and the plate-like member is arranged so as to cross the storage space. A storage container for an inkjet head, characterized in that it contains a cut tape. 2. The plate member consists of a base layer, a cut tape, an aluminum foil, and an adhesive layer in order from the non-bonded surface, and the cut tape is longer than the entire length of the base layer in the tearing direction and protrudes from the base layer at one end; Notches are provided at the ends of the plate-like member on both sides of the protruding portion of the cut tape, and perforations are provided in the base layer along the sides of the cut tape over the entire length in the tearing direction from the notches, A notch is provided in the portion of the periphery of the container body that overlaps with the side of the cut tape, and a welded portion extending from the notch in the direction of tearing the plate-like member and a welded portion that extends all the way around the periphery of the container body. The container according to claim 1, characterized in that the plate member and the container body are joined. 3. Claim 1, wherein the container body is made of a plastic multilayer sheet having a polyvinylidene chloride layer.
Or the container described in 2. 4. Claim 1, 2 or 3, wherein the plate member and the container body are joined by ultrasonic welding.
Container as described in.