Blister card paper and blister package suitable for on-site large-volume printing of narrow-edge blister

Abstract

The application discloses a blister white cardboard and blister packaging suitable for on-site large-ink-volume printing of narrow-edge blister, and belongs to the papermaking technical field.The technical scheme is as follows: from top to bottom, a coating layer, a surface sizing layer and a base paper layer are sequentially arranged;the coating layer comprises a surface coating layer and a pre-coating layer;the surface sizing layer adopts a mixture of enzyme-converted starch and spherical light calcium carbonate as a sizing agent and is coated on the surface of the base paper through film transfer; and the base paper layer comprises a surface fiber layer, a core fiber layer and a bottom fiber layer.The application solves the problems that the on-site ink, water-based blister oil, PET material bubble shell and blister heating time less than 2S cannot meet the requirement that the tearing area is greater than 90%, and good economic and social benefits are achieved.

Description

Technical Field

[0001] This invention belongs to the field of papermaking technology, specifically relating to a blister white cardboard and blister packaging suitable for large-volume solid-state printing on narrow edges. Background Technology

[0002] With economic development, people have increasingly higher requirements for product packaging. Blister packaging, a novel packaging form that has emerged in the last decade or so, is widely used for packaging products such as toothbrushes, batteries, small toys, and small hardware items because it offers high quality, low cost, and enhances product aesthetics, attracting more customers.

[0003] Blister packaging typically uses half white cardboard and half transparent plastic. With the development of blister packaging, the use of white cardboard for blister packaging is increasing. The basic process of blister packaging involves coating the white cardboard with printing, then applying a layer of blister oil (water-based or oil-based) to the printed surface. This oil combines the functions of blister packaging and regular varnish. Using an electric heating or high-frequency blister packaging machine under high temperature and pressure, the adhesive properties of the heated blister oil are utilized to bond the plastic blister pack (such as PVC or PET) to the printed cardboard, either wholly or partially. During blister packaging, when temperature, pressure, blister pack quantity, and blister pack size remain constant, the final blister packaging effect primarily depends on the properties of the coated white cardboard.

[0004] The criterion for judging whether the blister packaging result is acceptable is whether the fiber layer can be torn apart when the plastic blister is broken, with more than 90% of the fiber layer below the blister surface being damaged. The blister packaging result is related to the ink thickness, the type of blister oil, the type of plastic blister, and the size of the plastic blister surface. The most difficult blister packaging method is to use solid ink for the ink layer, water-based blister oil for the blister oil layer, PET material for the plastic blister, and a heating time of less than 2 seconds. It is generally difficult for white cardboard for blister packaging to tear to the fiber layer and damage more than 90% of the area. Therefore, it is necessary to develop a type of white cardboard suitable for printing with a large amount of solid ink on narrow edges for blister packaging, and to use it to prepare blister packaging that meets the requirement of tearing to the fiber layer and damaging more than 90% of the area. Summary of the Invention

[0005] This invention provides a blister white cardboard and blister packaging suitable for solid ink printing with large ink volume on narrow edges. This invention solves the problem that solid ink, water-based blister oil, PET material blister packs, and blister heating time of less than 2 seconds cannot meet the requirement of tearing area greater than 90%, thus achieving good economic and social benefits.

[0006] The technical solution of this invention is as follows:

[0007] In the first aspect, a type of blister white cardstock suitable for large-volume printing on narrow edges is disclosed, consisting of a coating layer, a surface sizing layer, and a base paper layer from top to bottom.

[0008] The coating layer includes a topcoat coating layer and a pre-coat coating layer;

[0009] The topcoat layer comprises the following raw materials in parts by weight: pigment consisting of 40-60 parts of needle-shaped or rod-shaped light calcium carbonate and 60-40 parts of calcined clay, for a total of 100 parts; adhesive using synthetic latex, with an oven-dry amount of 15-20 parts, and also includes 1-2 parts of waterborne polyurethane.

[0010] The pre-coated layer comprises the following raw materials in parts by weight: pigment consisting of 60-80 parts of grade 60 calcium carbonate, 40-20 parts of calcined clay, for a total of 100 parts; and adhesive using synthetic latex, with an oven-dry amount of 15-20 parts.

[0011] The surface sizing layer uses a mixture of 60-80 parts by weight of enzyme-converted starch and 20-40 parts by weight of spherical light calcium carbonate as the sizing agent, which is applied to the surface of the base paper by film transfer.

[0012] The base paper layer includes a surface fiber layer, a core fiber layer, and a bottom fiber layer;

[0013] The surface fiber layer uses 100% hardwood bleached sulfate pulp, the core fiber layer uses hardwood bleached chemothermal mechanical pulp and paper machine waste, with a weight ratio of hardwood bleached chemothermal mechanical pulp to paper machine waste of 60-70:30-40; the bottom fiber layer uses softwood bleached sulfate pulp and hardwood bleached sulfate pulp, with a weight ratio of softwood bleached sulfate pulp to hardwood bleached sulfate pulp of 20-30:70-80.

[0014] Preferably, the adhesive is one or more of carboxylated styrene-butadiene latex, styrene-acrylic latex, and PVAC latex.

[0015] Preferably, the base paper layer also includes a liner layer, which is made of 100% hardwood bleached sulfate pulp.

[0016] Secondly, the preparation method of the blister white cardboard suitable for large-volume solid-state printing on narrow edges is disclosed, specifically as follows: 1) Preparation of the top coating layer, pre-coating layer materials and sizing agent: The raw materials of the top coating layer, pre-coating layer and surface sizing layer are stirred and mixed evenly, wherein the top coating layer includes the following raw materials by weight: the pigment composition is 40-60 parts of needle-shaped or rod-shaped light calcium carbonate and 60-40 parts of calcined clay, the total number of parts is 100; the adhesive is a synthetic latex, and the adhesive has an insulating... The dry application amount is 15-20 parts, including 1-2 parts of waterborne polyurethane; the pre-coating layer includes the following raw materials by weight: pigment composition of 60-80 parts calcium carbonate, 40-20 parts calcined clay, and a total of 100 parts; the adhesive is a synthetic latex, with an oven-dry application amount of 15-20 parts; the surface sizing layer uses a mixture of 60-80 parts by weight of enzyme-converted starch and 20-40 parts by weight of spherical light calcium carbonate as the sizing agent; the topcoat, pre-coating, and sizing agent are prepared for later use;

[0017] 2) Preparation of base paper pulp:

[0018] Bleached sulfate pulp of hardwood: The required pulp board (with an air-dried moisture content of about 10%) is broken down into a pulp with a concentration of 3-5% by a hydraulic pulper. After passing through a heavy slag remover, it enters a pulper for grinding to a freeness of 350-450 ml·csf and is then transported to a pulp storage tower for later use. Bleached sulfate pulp of softwood: The required pulp board (with an air-dried moisture content of about 10%) is broken down into a pulp with a concentration of 3-5% by a hydraulic pulper. After passing through a heavy slag remover, it enters a pulper for grinding to a freeness of 380-450 ml·csf and is then transported to a pulp storage tower for later use.

[0019] The surface fiber layer pulp, consisting of 100% bleached sulfate hardwood pulp, is transported from the storage tower to the mixing tank and then to the paper machine pulp tank. It is diluted with white water to a concentration of 0.2-0.5%, and after purification, deslagging, and deaeration, it enters the surface headbox and is then sprayed onto the forming wire to form the surface fiber layer. The core fiber layer, consisting of bleached chemithermomechanical hardwood pulp and paper machine waste paper, is mixed thoroughly in a specific ratio in the mixing tank before being transported to the paper machine pulp tank. A certain amount of cationic starch and dry strength agent are added, and the pulp is diluted with white water to a concentration of 0.8%. -1.5% concentration, after purification, slag removal and degassing, enters the core headbox and is then sprayed onto the forming wire to form the core fiber layer; the bottom fiber layer pulp is 70-80% bleached sulfate hardwood pulp and 20-30% bleached sulfate softwood pulp, which are transported from the storage tower to the mixing tank in proportion, mixed evenly, and then transported to the paper machine pulp tank, diluted with white water to a concentration of 0.2-0.5%, screened, purified and degassed, and then enters the bottom headbox and is sprayed onto the forming wire to form the bottom fiber layer;

[0020] 3) In the wire section of the paper machine, the surface fiber layer and the core fiber layer are first laminated, and then laminated with the bottom fiber layer to form the base paper layer. The paper is then pressed to achieve a dryness of 48-50%, and then enters the pre-drying cylinder area for drying. When the moisture content reaches 7-8%, it enters the sizing section, where film transfer sizing is used, controlling the sizing amount at 0-0.5 g / m³. 2 When the sizing machine is disconnected, the sizing amount is 0. The product then enters the post-drying drying zone to dry the sizing layer. Next, it passes through a hard calender to finish the surface before entering the coating section, where the prepared pre-coating is applied at 10-12 g / m² using a scraper. 2 First, apply the coating material, dry it with an infrared dryer, and then use a scraper to apply the topcoat material at a rate of 10-12 g / m². 2 The coating amount is applied to the pre-coated layer, dried with infrared light, and then the surface is finished by a soft calender. Finally, it is rolled up and slit to obtain blister white cardboard.

[0021] Film transfer coating: The film transfer sizing machine forms a film of adhesive on the sizing rollers through a metering rod. There is a certain pressure between the upper and lower sizing rollers. When the paper web passes through the upper and lower sizing rollers, it can carry away the adhesive, completing the sizing process. The thickness of the adhesive film can be formed by adjusting the grooves of the metering rod, the rod pressure, and the concentration of the sizing agent, thereby controlling the amount of adhesive applied.

[0022] Preferably, the amount of adhesive applied to the surface coating is 0-0.5 g / m². 2 .

[0023] Thirdly, the blister packaging made from blister white cardboard suitable for large-volume printing on narrow edges includes, from bottom to top, blister white cardboard, ink layer, blister oil layer, and plastic blister pack.

[0024] The success of blister packaging is demonstrated by tearing the plastic blister pack and white cardboard by hand and observing whether the fracture occurs in the fiber layer of the original paper. According to basic principles, fracture always occurs at the layer with the lowest strength. The chain structure of this invention's blister packaging is characterized by the following bond strength: the bond strength between the plastic blister pack and the blister coating layer ≥ the bond strength between the blister coating layer and the ink layer ≥ the bond strength between the ink layer and the coating layer ≥ the bond strength between the coating layer and the surface adhesive layer ≥ the bond strength between the surface adhesive layer and the original paper layer. This ensures that the original paper layer is the weakest point. When the tearing force is transmitted from the plastic blister pack through the blister coating layer, ink layer, coating layer, and adhesive layer to the fiber layer, fracture occurs in the fiber layer. A successful blister packaging result is specifically as follows: Figure 2 As shown, Figure 2 The tear should occur in the fiber layer of the base paper.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] This invention enables the white cardboard to have blister properties by controlling the composition and proportion of the coating layer, the raw materials and proportions of each fiber layer in the base paper layer, and the amount of adhesive applied to the surface. The invention also utilizes this blister white cardboard to prepare blister packaging, solving the problems that solid ink, water-based blister oil, PET material blister packs, and blister heating time of less than 2 seconds cannot meet the requirement of tearing area greater than 90%, thus achieving good economic and social benefits. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the blister packaging structure of the present invention.

[0028] Figure 2 This is a schematic diagram of the successful vacuum forming result of the present invention.

[0029] Figure 3 This is a schematic diagram of the air permeability of the coating layer in Embodiment 1 and Comparative Examples 1-3 of the present invention. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention. Solutions not described in detail in this invention are conventional in the art and employ conventional methods within the art.

[0031] A type of blister white cardstock suitable for solid-state, high-volume ink printing on narrow edges, consisting of a coating layer, a surface sizing layer, and a base paper layer from top to bottom;

[0032] The coating layer includes a topcoat coating layer and a pre-coat coating layer;

[0033] The topcoat layer comprises the following raw materials in parts by weight: pigment consisting of 40-60 parts of needle-shaped or rod-shaped light calcium carbonate and 60-40 parts of calcined clay, for a total of 100 parts; adhesive using synthetic latex, with an oven-dry amount of 15-20 parts, and also includes 1-2 parts of waterborne polyurethane.

[0034] The pre-coated layer comprises the following raw materials in parts by weight: 60-80 parts of 60-grade calcium carbonate pigment, 40-20 parts of calcined clay, and a total of 100 parts; the adhesive is a synthetic latex, with an oven-dry amount of 15-20 parts, and the adhesive is one or more of carboxylated styrene-butadiene latex, styrene-acrylic latex, and PVAC latex.

[0035] The surface sizing layer uses a mixture of 60-80 parts by weight of enzyme-converted starch and 20-40 parts by weight of spherical light calcium carbonate as the sizing agent, which is applied to the surface of the base paper by film transfer.

[0036] The base paper layer includes a surface fiber layer, a core fiber layer, and a bottom fiber layer;

[0037] The surface fiber layer uses 100% hardwood bleached sulfate pulp, the core fiber layer uses hardwood bleached chemothermal mechanical pulp and paper machine waste, with a weight ratio of hardwood bleached chemothermal mechanical pulp to paper machine waste of 60-70:30-40; the bottom fiber layer uses softwood bleached sulfate pulp and hardwood bleached sulfate pulp, with a weight ratio of softwood bleached sulfate pulp to hardwood bleached sulfate pulp of 20-30:70-80. The base paper layer also includes a liner layer, which uses 100% hardwood bleached sulfate pulp.

[0038] Example 1

[0039] A type of blister white cardstock suitable for solid-state, high-volume ink printing on narrow edges, consisting of a coating layer, a surface sizing layer, and a base paper layer from top to bottom;

[0040] The coating layer includes a topcoat coating layer and a pre-coat coating layer;

[0041] The topcoat layer comprises the following raw materials in parts by weight: pigments consisting of 60 parts needle-shaped light calcium carbonate (PCC) and 40 parts calcined clay, of which 95.01% have a particle size <2.0μm; adhesives consisting of 12 parts synthetic latex carboxylated styrene-butadiene latex and 3 parts PVAC latex, and also 1 part waterborne polyurethane of model U54 produced by Bayer (China) Co., Ltd.

[0042] The pre-coated layer comprises the following raw materials in parts by weight: 80 parts of 60 grade calcium carbonate pigment and 20 parts of calcined clay; the adhesive consists of 12 parts of synthetic latex carboxylated styrene-butadiene latex and 4 parts of PVAC latex.

[0043] The surface sizing layer uses a mixture of 60 parts by weight of enzyme-converted starch and 40 parts by weight of spherical light calcium carbonate as the sizing agent, which is applied to the surface of the base paper via film transfer coating at a sizing amount of 0.5 g / m². 2 .

[0044] The base paper layer includes a surface fiber layer, a core fiber layer, and a bottom fiber layer;

[0045] The surface fiber layer uses 100% hardwood bleached sulfate pulp, the core fiber layer uses hardwood bleached chemothermal mechanical pulp and paper machine waste paper, with a weight ratio of hardwood bleached chemothermal mechanical pulp to paper machine waste paper of 60:40; the bottom fiber layer uses softwood bleached sulfate pulp and hardwood bleached sulfate pulp, with a weight ratio of softwood bleached sulfate pulp to hardwood bleached sulfate pulp of 20:80; the base paper layer also includes a liner layer, which uses 100% hardwood bleached sulfate pulp.

[0046] This invention relates to a method for preparing narrow-edge blister white cardstock suitable for solid-color, high-volume ink printing, specifically as follows:

[0047] 1) Preparation of topcoat coating, precoat coating and sizing agent: According to the above raw material ratio of topcoat coating, precoat coating and surface sizing agent, stir and mix the raw materials of topcoat coating, precoat coating and surface sizing agent evenly to prepare topcoat coating, precoat coating and sizing agent for later use;

[0048] 2) Preparation of base paper pulp:

[0049] Bleached sulfate pulp for hardwood: The required pulp board (with an air-dried moisture content of about 10%) is broken down into a 3% concentration pulp by a hydraulic pulper. After passing through a heavy slag remover, it enters a pulper for refining to a freeness of 350 ml·csf and is then transported to a storage tower for later use. Bleached sulfate pulp for softwood: The required pulp board (with an air-dried moisture content of about 10%) is broken down into a 3% concentration pulp by a hydraulic pulper. After passing through a heavy slag remover, it enters a pulper for refining to a freeness of 380 ml·csf and is then transported to a storage tower for later use.

[0050] The surface fiber layer pulp, consisting of 100% bleached sulfate hardwood pulp, is transported from the storage tower to the mixing tank and then to the paper machine pulp tank. It is diluted with white water to a mass concentration of 0.2%, and after purification, deslagging, and deaeration, it enters the surface headbox and is then sprayed onto the forming wire to form the surface fiber layer. The core fiber layer, consisting of bleached chemithermomechanical hardwood pulp and paper machine waste paper in a 60%:40% ratio, is mixed thoroughly in the mixing tank before being transported to the paper machine pulp tank. Cationic starch and dry strength agents are added to improve the strength. The pulp is diluted with white water to a concentration of 0.8%, and after purification, slag removal, and degassing, it enters the core headbox and is then sprayed onto the forming wire to form the core fiber layer. The bottom fiber layer pulp is composed of 80% bleached sulfate hardwood pulp and 20% bleached sulfate softwood pulp, which are transported from the storage tower to the mixing tank in proportion, mixed evenly, and then transported to the paper machine pulp tank. It is diluted with white water to a concentration of 0.2%, and after screening, purification, and degassing, it enters the bottom headbox and is then sprayed onto the forming wire to form the bottom fiber layer.

[0051] 3) In the wire section of the paper machine, the surface fiber layer and the core fiber layer are first laminated, and then laminated with the bottom fiber layer to form the base paper layer. The paper is then pressed to achieve a dryness of 48%, and then enters the pre-drying cylinder area for drying. When the moisture content reaches 7%, it enters the sizing section, where film transfer sizing is used, controlling the sizing amount at 0.5 g / m³. 2 When the sizing machine is disconnected, the sizing amount is 0. The product then enters the post-drying drying zone to dry the sizing layer. Next, it passes through a hard calender to finish the surface before entering the coating section, where the prepared pre-coating is applied at 10g / m² using a scraper. 2 First, apply the coating material at a certain application rate, dry it using an infrared dryer, and then use a scraper to apply the topcoat material at a rate of 10 g / m². 2 The coating amount is applied to the pre-coated layer, dried with infrared light, and then the surface is finished by a soft calender. Finally, it is rolled up and slit to obtain blister white cardboard.

[0052] The bonding strength of the base paper layer is 150 J / m. 2 The bond strength between the blister pack layer and the adhesive layer is 250 J / m. 2 .

[0053] Comparative Example 1

[0054] Comparative Example 1 prepared a white cardboard. Unlike Example 1, the surface coating of Comparative Example 1 included the following raw materials in parts by weight: 54 parts of 91 grade calcium carbonate, 6 parts of 60 grade calcium carbonate, 20 parts of kaolin and 20 parts of calcined clay, 15 parts of carboxylated styrene-butadiene latex, and the proportion of calcium carbonate particles with a diameter <2.0 μm was 89.29%.

[0055] The pre-coated layer comprises the following raw materials in parts by weight: 80 parts of grade 60 calcium carbonate and 20 parts of calcined clay; the adhesive is a synthetic latex carboxylated styrene-butadiene latex, and the oven-dry amount of the adhesive is 16 parts.

[0056] The application rate of the surface adhesive layer is 1.2 g / m². 2 ;

[0057] The surface fiber layer consists of 80 parts bleached sulfate hardwood pulp and 20 parts bleached sulfate softwood pulp.

[0058] The bonding strength of the base paper layer is 300 J / m. 2 The bond strength between the blister pack layer and the adhesive layer is 250 J / m. 2 .

[0059] Comparative Example 2

[0060] Comparative Example 2 prepared a white cardboard. Unlike Example 1, the surface coating of Comparative Example 2 included the following raw materials in parts by weight: 42 parts of 91 grade calcium carbonate, 18 parts of 60 grade calcium carbonate, 20 parts of kaolin and 20 parts of calcined clay, 15 parts of carboxylated styrene-butadiene latex, and the proportion of calcium carbonate particles with a diameter <2.0 μm was 81.06%.

[0061] The pre-coated layer comprises the following raw materials in parts by weight: 80 parts of grade 60 calcium carbonate and 20 parts of calcined clay; the adhesive is a synthetic latex carboxylated styrene-butadiene latex, and the oven-dry amount of the adhesive is 16 parts.

[0062] The application rate of the surface adhesive layer is 1.2 g / m². 2 ;

[0063] The surface fiber layer consists of 80 parts bleached sulfate hardwood pulp and 20 parts bleached sulfate softwood pulp.

[0064] The bonding strength of the base paper layer is 280 J / m. 2 The bond strength between the blister pack layer and the adhesive layer is 260 J / m. 2 .

[0065] Comparative Example 3

[0066] Comparative Example 3 prepared a white cardboard. Unlike Example 1, the surface coating of Comparative Example 3 included the following raw materials in parts by weight: 30 parts of 91 grade calcium carbonate, 30 parts of 60 grade calcium carbonate, 20 parts of kaolin and 20 parts of calcined clay, 15 parts of carboxylated styrene-butadiene latex, and the proportion of calcium carbonate particles with a diameter <2.0 μm was 74.61%.

[0067] The pre-coated layer comprises the following raw materials in parts by weight: 80 parts of grade 60 calcium carbonate and 20 parts of calcined clay; the adhesive is a synthetic latex carboxylated styrene-butadiene latex, and the oven-dry amount of the adhesive is 16 parts.

[0068] The application rate of the surface adhesive layer is 1.2 g / m². 2 ;

[0069] The surface fiber layer consists of 80 parts bleached sulfate hardwood pulp and 20 parts bleached sulfate softwood pulp.

[0070] The bonding strength of the base paper layer is 270 J / m. 2 The bonding strength between the blister pack layer and the adhesive layer is 265 J / m. 2 .

[0071] The white cardboard prepared in Example 1 and Comparative Examples 1-3 was used to prepare blister packaging. The specific preparation method is as follows:

[0072] The white cardboard prepared in Examples 1 and 1-3 was printed using a Heidelberg printing press. Water-based / oil-based blister ink was applied to the rollers at a coating weight of 2.5 g / m².2 Then, according to the shape of the mold, cover it with PET / PVC material blister pack, heat it to 150℃ to melt the blister pack oil, apply 4kg pressure, and wait for 1.8 seconds to bond the paper and plastic blister pack together to form a blister packaging.

[0073] The blister packaging grades were determined using the white cardboard prepared in Example 1 and Comparative Examples 1-3. The specific test methods and test results are shown in Table 1.

[0074] Table 1 shows the results of the determination of raw materials and thermoforming grades in Example 1 and Comparative Examples 1-3.

[0075]

[0076]

[0077] It should be noted that, for vacuum forming effect, level 3 means that the area of ​​the stretched fiber is 30-60%; level 4 means that the area of ​​the stretched fiber is 60-90%; and level 5 means that the area of ​​the stretched fiber is greater than 90%.

[0078] The air permeability of the coating layers in Example 1 and Comparative Examples 1-3 was measured, specifically as follows: Figure 1 As shown, from Figure 1 As can be seen from the results, the air permeability of the coating layer in Example 1 is significantly improved compared to Comparative Examples 1-3. The significant improvement in the air permeability of the coating layer is also an important factor in improving the vacuum forming effect.

[0079] This invention enables the white cardboard to have blister properties by controlling the composition and proportion of the coating layer, the raw materials and proportions of each fiber layer in the base paper layer, and the amount of adhesive applied to the surface. The invention also utilizes this blister white cardboard to prepare blister packaging, solving the problems that solid ink, water-based blister oil, PET material blister packs, and blister heating time of less than 2 seconds cannot meet the requirement of tearing area greater than 90%, thus achieving good economic and social benefits.

[0080] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, the invention is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the invention by those skilled in the art without departing from the spirit and essence of the invention, and such modifications or substitutions should all be within the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A blister white card suitable for on-site large volume printing of narrow edge blister, characterized in that, From top to bottom are paint layer, surface sizing layer and base paper layer; The paint layer comprises a top coat paint layer and a pre-coat paint layer; The top coat paint layer comprises the following raw materials by weight: the pigment composition is needle-like or rod-like light calcium carbonate 40-60 parts and calcined clay 60-40 parts, with a total of 100 parts; the adhesive is synthetic latex with an absolute dry amount of 15-20 parts, and further comprises water-based polyurethane 1-2 parts; The pre-coat paint layer comprises the following raw materials by weight: the pigment composition is calcium carbonate 60-80 parts and calcined clay 40-20 parts, with a total of 100 parts; the adhesive is synthetic latex with an absolute dry amount of 15-20 parts; The synthetic latex is one or more of carboxyl styrene-butadiene latex, styrene-acrylate latex and PVAC latex; The surface sizing layer uses a mixture of 60-80 parts by weight of enzyme-converted starch and 20-40 parts by weight of spherical light calcium carbonate as a sizing agent, which is coated on the surface of the base paper by film transfer; The base paper layer comprises a top fiber layer, a core fiber layer and a bottom fiber layer; The top fiber layer uses 100% bleached kraft pulp, the core fiber layer uses bleached hardwood chemi-thermo-mechanical pulp and paper machine broke, and the weight ratio of the bleached hardwood chemi-thermo-mechanical pulp to the paper machine broke is 60-70:30-40; the bottom fiber layer uses bleached softwood kraft pulp and bleached hardwood kraft pulp, and the weight ratio of the bleached softwood kraft pulp to the bleached hardwood kraft pulp is 20-30:70-80; The preparation method of the blister white cardboard suitable for field printing with large ink amount and narrow edge blistering, specifically comprises the following steps: 1) Preparation of top coat paint layer, pre-coat paint layer materials and sizing agent: the raw materials of the top coat paint layer, the pre-coat paint layer and the surface sizing layer are stirred and mixed uniformly to prepare the top coat paint, the pre-coat paint and the sizing agent, which are ready for use; 2) Preparation of base paper layer pulp: the top fiber layer pulp is 100% bleached kraft pulp, which is transported from the pulp storage tower to the mixed pulp pool and then to the paper machine pulp pool, diluted with white water to a concentration of 0.2-0.5%, and then enters the top layer headbox after purification, deslagging and degassing, and then is sprayed on the forming wire to form the top fiber layer; the bleached hardwood chemi-thermo-mechanical pulp and the paper machine broke of the core fiber layer are mixed uniformly in the mixed pulp pool and then transported to the paper machine pulp pool, and then cationic starch and dry strength agent are added, diluted with white water to a concentration of 0.8-1.5%, and then enters the core layer headbox after purification, deslagging and degassing, and then is sprayed on the forming wire to form the core fiber layer; the bottom fiber layer pulp is 70-80% bleached kraft pulp and 20-30% bleached softwood kraft pulp, which is transported from the pulp storage tower to the mixed pulp pool in proportion, mixed uniformly, and then transported to the paper machine pulp pool, diluted with white water to a concentration of 0.2-0.5%, and then enters the bottom layer headbox after screening, purification and degassing, and then is sprayed on the forming wire to form the bottom fiber layer; 3) In the paper machine net section, firstly, the surface fiber layer and the core fiber layer are compounded, and then compounded with the bottom fiber layer to form the base paper layer, and then pressed to make the paper dryness reach 48-50%, and then enters the front drying cylinder area drying, when the moisture reaches 7-8%, enters the sizing section, the film transfer type sizing is adopted in the sizing section, and the sizing amount is controlled at 0.5g / m 2 , and then enters the back drying cylinder area, dries the sizing layer, and then passes through the hard calender to finish the surface, and then enters the coating section, and the prepared pre-coating coating is coated by the doctor blade at a coating amount of 10-12g / m 2 , dried by the infrared dryer, and then the top coating is coated on the pre-coating layer by the doctor blade at a coating amount of 10-12g / m 2 , and after the infrared drying, enters the soft calender to finish the surface, and finally, is wound up, and then is cut to obtain the blister white cardboard.

2. The blister white card suitable for on-site large volume printing of narrow edge blister pack of claim 1, wherein, The base paper layer further comprises a liner layer, which uses 100% bleached kraft pulp.

3. Blister package made with blistered white card suitable for in-field large volume printing of narrow edge blistering, according to claim 1 or 2, characterized in that, From bottom to top are the blister white cardboard, the ink layer, the blister oil layer and the plastic bubble shell.

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