WO2021056661A1 - Paper film bag manufacturing process - Google Patents

Paper film bag manufacturing process Download PDF

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Publication number
WO2021056661A1
WO2021056661A1 PCT/CN2019/113539 CN2019113539W WO2021056661A1 WO 2021056661 A1 WO2021056661 A1 WO 2021056661A1 CN 2019113539 W CN2019113539 W CN 2019113539W WO 2021056661 A1 WO2021056661 A1 WO 2021056661A1
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Prior art keywords
paper
water
film bag
paper film
manufacturing process
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PCT/CN2019/113539
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French (fr)
Chinese (zh)
Inventor
陈志坚
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新兴印刷有限公司
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Publication of WO2021056661A1 publication Critical patent/WO2021056661A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/88—Printing; Embossing
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04—Homopolymers or copolymers of esters

Definitions

  • the invention relates to the field of packaging, in particular to a process for making paper film bags.
  • the present invention provides a paper film bag manufacturing process, and finally a paper film bag for packaging is obtained.
  • the product is completely packaged by paper without using any plastic material. After being discarded, it can be quickly degraded without pollution.
  • the present invention provides a paper film bag manufacturing process, which includes the following steps:
  • the paper is printed with water-based ink printing on the front side, and water-based thermal adhesive on the back side with a gravure printing unit;
  • step S1 when the intaglio plate is made, the intaglio plate is made according to the position and size of the paper seal required.
  • the paper uses FSC food grade white kraft paper.
  • step S3 the ink is printed with a non-toxic water-based ink, and a flexographic printing machine is used for printing.
  • the water-based heat-sensitive adhesive is composed of special ingredients.
  • the used ingredients are as follows: acrylic emulsion: 40-60%; water-soluble resin: 20-30%; emulsifier: 1 -3%; the remaining component is deionized water; the acrylic emulsion is divided into two parts, one of which is added with water-soluble resin and deionized water, and stirred for 10-20 minutes to obtain component A; the other part is added The emulsifier and deionized water are stirred for 10-20 minutes to obtain component B, and then the combination B is added dropwise to component A, and finally the water-based heat-sensitive adhesive is obtained.
  • step S3 the water-based heat-sensitive adhesive is printed with a gravure printing unit, and the smearing amount is 10-18 grams per square meter.
  • step S4 when the sealing is performed, the sealing temperature is 150-250 degrees Celsius, the hot pressing time is not less than 0.5 seconds, and the paper film bag for packaging is obtained after the sealing is completed.
  • the paper film bag obtained by the present invention is completely packaged by paper to achieve a sealing effect, eliminates the degradation problem caused by the use of plastic film, makes the entire package more environmentally friendly and can be fully degraded, in order to prevent The diffusion of the adhesive during heat sealing, especially the gravure printing technology used in the sealing position of the paper film bag, combined with a special water-based heat-sensitive adhesive, so as to ensure stable adhesion during heat sealing; flexible printing is used on the front of the paper, With water-based flexographic ink, there will be no toxic and harmful substances when printing the corresponding packaging bags, so that there is no impact on the packaging, even food can be used for packaging, making the application range wider.
  • Figure 1 is a flow chart of the packaging process of the present invention.
  • the present invention discloses a paper film bag manufacturing process, which includes the following steps:
  • S3 The paper is printed, the front is printed with water-based ink, and the back is printed with water-based thermal adhesive using a gravure printing unit.
  • step S3 After the above-mentioned step S3, the product to be packaged is put into the paper, and then the product is packaged in step S4, and finally a well-packaged product is obtained.
  • step S1 when the intaglio plate is made, the intaglio plate is made according to the position and size of the paper seal required.
  • the paper uses FSC food grade white kraft paper.
  • step S3 the ink is printed with a non-toxic water-based ink, and a flexographic printing machine is used for printing.
  • the position is chosen to be 0.5-1cm away from the edge of the paper.
  • the size of the gravure printing plate is selected according to the packaging requirements of different products.
  • the width of the gravure printing is chosen to be 0.5-1.5cm, and the automatic bag making machine is used for packaging bag production.
  • a specially formulated water-based heat-sensitive adhesive is specially used.
  • the ingredients used are as follows: acrylic emulsion: 40-60%; water-soluble resin: 20-30 %; emulsifier: 1-3%; the remaining component is deionized water; divide the acrylic emulsion into two parts, add water-soluble resin and deionized water to one part, and stir for 10-20 minutes to obtain group A Part; add emulsifier and deionized water to the other part, stir for 10-20 minutes to obtain component B, then add combination B to component A, and finally obtain the water-based heat-sensitive adhesive.
  • the acrylic emulsion is an aqueous acrylic emulsion
  • the water-soluble resin is one or more of melamine formaldehyde resin, resol phenolic resin, polyvinyl alcohol, and polyethylene oxide
  • the emulsifier is a non-ionic emulsifier.
  • the specific agent is p-octylphenol polyoxyethylene ether.
  • the water-based heat-sensitive adhesive is printed with a gravure printing unit, and the smearing amount is 10-18 grams per square meter.
  • the sealing temperature is 150-250 degrees Celsius
  • the hot pressing time is not less than 0.5 seconds
  • the paper film bag for packaging is obtained after the sealing is completed.
  • the time of hot pressing also needs to meet certain requirements, so that heat sealing can be effectively realized. After the above steps, a product packaged by white kraft paper is finally obtained. . .

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Packages (AREA)
  • Wrappers (AREA)

Abstract

Disclosed is a paper film bag manufacturing process, comprising the following steps: S1, performing gravure plate manufacturing, specifically, manufacturing a gravure printing plate according to use requirements; S2, cutting paper to enable the paper to be of a proper size; S3, performing printing processing on the paper, wherein a front face is printed using water-based ink, and a back face is printed using a water-based thermosensitive adhesive by using a gravure printing unit; and S4, performing high-temperature hot-pressing sealing, and finally obtaining a paper film bag. By means of the process, the degradation problem caused by the use of a plastic film is eliminated, and a gravure printing technology is used at a sealing position of a paper film bag so as to guarantee stable adhesion during hot sealing; and no toxic and harmful substances are generated, and the paper film bag can be used for food packaging.

Description

纸膜袋制作工艺Paper film bag production process 技术领域Technical field
本发明涉及包装领域，尤其涉及一种纸膜袋制作工艺。The invention relates to the field of packaging, in particular to a process for making paper film bags.
背景技术Background technique
现在的生产生活中，我们都离不开各种包装，无论我们购买什么样的商品，绝大部分都具有外包装，这层外包装基本上都是采用塑料袋、复合塑料膜和淋膜纸制成，但是这种外包装中依旧存在塑料结构，使用塑料膜结构时，无须使用粘合剂，只需高温塑封即可，利用温度对塑料薄膜的影响使其发生交联作用从而达到封口的目的。In today’s production and life, we are inseparable from all kinds of packaging. No matter what kind of goods we buy, most of them have outer packaging. This outer packaging is basically made of plastic bags, composite plastic film and coated paper. It is made, but there is still a plastic structure in this kind of outer packaging. When using a plastic film structure, there is no need to use an adhesive, just high-temperature plastic sealing. The effect of temperature on the plastic film is used to cross-link the plastic film to achieve sealing purpose.
技术问题technical problem
但是由于塑料膜很难被降解，不符合当今社会低碳环保的理念。However, since the plastic film is difficult to be degraded, it does not conform to the concept of low carbon and environmental protection in today's society.
技术解决方案Technical solutions
针对上述技术中存在的不足之处，本发明提供一种纸膜袋制作工艺，最终得到一个用于包装的纸膜袋，完全利用纸张对产品进行包装，而不使用任何的塑料材质，从而被丢弃后，能快速降解，不会产生污染。In view of the shortcomings in the above-mentioned technology, the present invention provides a paper film bag manufacturing process, and finally a paper film bag for packaging is obtained. The product is completely packaged by paper without using any plastic material. After being discarded, it can be quickly degraded without pollution.
为实现上述目的，本发明提供一种纸膜袋制作工艺，包括以下步骤：In order to achieve the above objective, the present invention provides a paper film bag manufacturing process, which includes the following steps:
S1:凹版制作，根据使用需求，制作凹印版；S1: Gravure production, according to the needs of use, make gravure printing plates;
S2:对纸张进行切割，使其达到合适的尺寸；S2: Cut the paper to a suitable size;
S3:对纸张进行印刷处理，正面采用水性油墨印刷，背面采用凹印机组印刷水性热敏粘合剂；S3: The paper is printed with water-based ink printing on the front side, and water-based thermal adhesive on the back side with a gravure printing unit;
S4:进行高温热压封口，最后得到纸膜袋。S4: Carry out high-temperature hot-press sealing, and finally obtain a paper film bag.
作为优选，在步骤S1中，所述凹版制作时，根据需要纸张密封的位置以及大小进行凹印版的制作。Preferably, in step S1, when the intaglio plate is made, the intaglio plate is made according to the position and size of the paper seal required.
作为优选，所述纸张采用FSC食品级白牛皮纸。Preferably, the paper uses FSC food grade white kraft paper.
作为优选，在步骤S3中，所述油墨采用无毒的水性油墨进行印刷，且采用柔板印刷机进行印刷处理。Preferably, in step S3, the ink is printed with a non-toxic water-based ink, and a flexographic printing machine is used for printing.
作为优选，所述水性热敏粘合剂采用特殊的成分组成，按照质量百分比，所采用的成分如下：丙烯酸脂类乳液：40-60%；水溶性树脂：20-30%；乳化剂：1-3%；剩余组分为去离子水；将所述丙烯酸酯类乳液分成两份，其中一份加入水溶性树脂和去离子水，搅拌10-20分钟，获得A组份；另外一份添加乳化剂和去离子水，搅拌10-20分钟，获得B组份，然后组合B滴加到组分A中，最后得到水性热敏粘合剂。Preferably, the water-based heat-sensitive adhesive is composed of special ingredients. According to the mass percentage, the used ingredients are as follows: acrylic emulsion: 40-60%; water-soluble resin: 20-30%; emulsifier: 1 -3%; the remaining component is deionized water; the acrylic emulsion is divided into two parts, one of which is added with water-soluble resin and deionized water, and stirred for 10-20 minutes to obtain component A; the other part is added The emulsifier and deionized water are stirred for 10-20 minutes to obtain component B, and then the combination B is added dropwise to component A, and finally the water-based heat-sensitive adhesive is obtained.
作为优选，在步骤S3中，将水性热敏粘合剂进行采用凹印机组进行印刷，涂抹量为每平方米10-18克。Preferably, in step S3, the water-based heat-sensitive adhesive is printed with a gravure printing unit, and the smearing amount is 10-18 grams per square meter.
作为优选，在步骤S4中，在进行封口时，封口的温度为150-250摄氏度，热压时间不低于0.5秒，封口完成后得到包装用纸膜袋。Preferably, in step S4, when the sealing is performed, the sealing temperature is 150-250 degrees Celsius, the hot pressing time is not less than 0.5 seconds, and the paper film bag for packaging is obtained after the sealing is completed.
有益效果Beneficial effect
本发明的有益效果是：本发明所得到的纸膜袋完全采用纸包装而可以達到密封效果，杜绝了使用塑料膜所带来的降解问题，使得整个包装更加环保，能充分降解，为了防止在进行热封时粘合剂的扩散，特别在纸膜袋的封口位置采用凹印技术，配合特制的水性热敏胶，从而保证了进行热封时的稳定粘合；纸张的正面采用柔性印刷，配合水性柔版油墨，这样在印刷对应的包装袋时，不会有任何的有毒有害物质，使得对包装物没有任何的影响，即使是食品也能拿来进行包装，使得应用的范围更广。The beneficial effects of the present invention are: the paper film bag obtained by the present invention is completely packaged by paper to achieve a sealing effect, eliminates the degradation problem caused by the use of plastic film, makes the entire package more environmentally friendly and can be fully degraded, in order to prevent The diffusion of the adhesive during heat sealing, especially the gravure printing technology used in the sealing position of the paper film bag, combined with a special water-based heat-sensitive adhesive, so as to ensure stable adhesion during heat sealing; flexible printing is used on the front of the paper, With water-based flexographic ink, there will be no toxic and harmful substances when printing the corresponding packaging bags, so that there is no impact on the packaging, even food can be used for packaging, making the application range wider.
附图说明Description of the drawings
图1为本发明的包装工艺流程图。Figure 1 is a flow chart of the packaging process of the present invention.
本发明的最佳实施方式The best mode of the present invention
为了更清楚地表述本发明，下面结合附图对本发明作进一步地描述。In order to express the present invention more clearly, the present invention will be further described below with reference to the accompanying drawings.
请参阅图1，本发明公开了一种纸膜袋制作工艺，包括以下步骤：Please refer to Figure 1. The present invention discloses a paper film bag manufacturing process, which includes the following steps:
S1:凹版制作，根据使用需求，制作凹印版；S1: Gravure production, according to the needs of use, make gravure printing plates;
S2:对纸张进行切割，使其达到合适的尺寸；S2: Cut the paper to a suitable size;
S3:对纸张进行印刷处理，正面采用水性油墨印刷，背面采用凹印机组印刷水性热敏粘合剂。S3: The paper is printed, the front is printed with water-based ink, and the back is printed with water-based thermal adhesive using a gravure printing unit.
S4:进行高温热压封口，最后得到纸膜袋。S4: Carry out high-temperature hot-press sealing, and finally obtain a paper film bag.
经过上述步骤S3之后，将需要进行包装的产品，放入纸张内，然后经过步骤S4，将产品进行包装，最后得到包装完好的产品。After the above-mentioned step S3, the product to be packaged is put into the paper, and then the product is packaged in step S4, and finally a well-packaged product is obtained.
为了实现上述目的，在步骤S1中，在进行凹版制作时，根据需要纸张密封的位置以及大小进行凹印版的制作。纸张采用FSC食品级白牛皮纸。在步骤S3中，油墨采用无毒的水性油墨进行印刷，且采用柔版印刷机进行印刷处理。在具体实施例中，位置选择在距离纸张边缘0.5-1cm位置，凹印版的大小根据对不同产品的包装需求，凹印的宽度选择为0.5-1.5cm，使用自動制袋機进行包装袋制作，得到一个一端開口的容置腔体，将待包装的产品放入该容置腔体内，然后将端口进行热封，最后得到一个包装完毕的产品；为了配合用户的需求，在白牛皮纸的外侧采用水性油墨进行印刷，根据不同的需求印刷不同的文字和图案，使得整体包装更加美观，白牛皮纸的内侧根据产品尺寸要求有凹印版位置，配合粘合剂，使得对产品进行有效粘合。In order to achieve the above purpose, in step S1, when the intaglio plate is made, the intaglio plate is made according to the position and size of the paper seal required. The paper uses FSC food grade white kraft paper. In step S3, the ink is printed with a non-toxic water-based ink, and a flexographic printing machine is used for printing. In a specific embodiment, the position is chosen to be 0.5-1cm away from the edge of the paper. The size of the gravure printing plate is selected according to the packaging requirements of different products. The width of the gravure printing is chosen to be 0.5-1.5cm, and the automatic bag making machine is used for packaging bag production. , Get a accommodating cavity with an open end, put the product to be packaged into the accommodating cavity, and then heat-seal the port, and finally get a packaged product; in order to meet the needs of users, it is placed on the outside of the white kraft paper Water-based ink is used for printing, and different characters and patterns are printed according to different needs, making the overall packaging more beautiful. The inner side of the white kraft paper has a gravure plate position according to the product size requirements, and an adhesive is used to effectively bond the product.
为了满足对白牛皮纸的粘合需求，特别采用一种特殊配方的水性热敏粘合剂，按照质量百分比，所采用的成分如下：丙烯酸脂类乳液：40-60%；水溶性树脂：20-30%；乳化剂：1-3%；剩余组分为去离子水；将所述丙烯酸酯类乳液分成两份，其中一份加入水溶性树脂和去离子水，搅拌10-20分钟，获得A组份；另外一份添加乳化剂和去离子水，搅拌10-20分钟，获得B组份，然后组合B滴加到组分A中，最后得到水性热敏粘合剂。在具体实施例中，丙烯酸乳液为水性丙烯酸乳液，水溶性树脂为三聚氰胺甲醛树脂、甲阶段酚醛树脂、聚乙烯醇、聚环氧乙烷中的一种或多种，乳化剂为非离子型乳化剂，具体为对辛基苯酚聚氧乙烯醚，以配置100g水性热敏粘合剂为例，首先称取丙烯酸脂类乳液50g、水溶性数值25g、乳化剂2.5g以及22.5g的去离子水，然后将丙烯酸脂类乳液均分为两份，其中一份加入水溶性树脂和少量去离子水，搅拌15分钟，得到组份A；另外一份丙烯酸脂类乳液中加入乳化剂和剩余的去离子水，搅拌20分钟，得到组份B，将组份B滴加到组分A中，滴加的温度控制在50摄氏度左右，滴加的同时不断进行搅拌，需要在半小时内滴加完毕。In order to meet the bonding requirements for white kraft paper, a specially formulated water-based heat-sensitive adhesive is specially used. According to the mass percentage, the ingredients used are as follows: acrylic emulsion: 40-60%; water-soluble resin: 20-30 %; emulsifier: 1-3%; the remaining component is deionized water; divide the acrylic emulsion into two parts, add water-soluble resin and deionized water to one part, and stir for 10-20 minutes to obtain group A Part; add emulsifier and deionized water to the other part, stir for 10-20 minutes to obtain component B, then add combination B to component A, and finally obtain the water-based heat-sensitive adhesive. In a specific embodiment, the acrylic emulsion is an aqueous acrylic emulsion, the water-soluble resin is one or more of melamine formaldehyde resin, resol phenolic resin, polyvinyl alcohol, and polyethylene oxide, and the emulsifier is a non-ionic emulsifier. The specific agent is p-octylphenol polyoxyethylene ether. Taking the preparation of 100g of water-based heat-sensitive adhesive as an example, first weigh 50g of acrylic emulsion, 25g of water solubility, 2.5g of emulsifier and 22.5g of deionized water , And then divide the acrylic emulsion into two parts, add water-soluble resin and a small amount of deionized water to one part, and stir for 15 minutes to obtain component A; add the emulsifier and the rest to the other part of the acrylic emulsion Ionized water, stir for 20 minutes to obtain component B, add component B to component A dropwise, the temperature of the drop is controlled at about 50 degrees Celsius, while stirring continuously, the addition needs to be completed within half an hour .
在具体进行实施时，将水性热敏粘合剂进行采用凹印机组进行印刷，涂抹量为每平方米10-18克。在进行封口时，封口的温度为150-250摄氏度，热压时间不低于0.5秒，封口完成后得到包装用纸膜袋。得到的水性热敏胶在进行涂抹时，需要根据白牛皮纸的粗糙程度来进行选择，如果白牛皮纸表面光滑，涂抹量就減少，如果表面粗糙，涂抹量就增加；在进行热封的过程中，，根据涂抹的量控制封口的温度，在热压的过程中，热压的时间也需要满足一定的需求，这样才能有效实现热封，经过上述步骤后，最终得到一个由白牛皮纸进行包装的产品。。In the specific implementation, the water-based heat-sensitive adhesive is printed with a gravure printing unit, and the smearing amount is 10-18 grams per square meter. When the sealing is performed, the sealing temperature is 150-250 degrees Celsius, the hot pressing time is not less than 0.5 seconds, and the paper film bag for packaging is obtained after the sealing is completed. When applying the obtained water-based heat-sensitive adhesive, you need to choose according to the roughness of the white kraft paper. If the surface of the white kraft paper is smooth, the smearing amount will decrease, and if the surface is rough, the smearing amount will increase; in the process of heat sealing, , Control the sealing temperature according to the amount of smearing. In the process of hot pressing, the time of hot pressing also needs to meet certain requirements, so that heat sealing can be effectively realized. After the above steps, a product packaged by white kraft paper is finally obtained. . .
 To
工业实用性Industrial applicability
1）完全采用纸张对产品进行包装，不含有任何的塑料薄膜，包装被丢弃后能有效进行回收分解；1) The product is completely packaged in paper, without any plastic film, and the package can be effectively recycled and decomposed after being discarded;
2）在纸张的封口位置采用特殊的热敏性粘合剂，使得纸张之间粘合更加稳定。2) Special heat-sensitive adhesive is used in the sealing position of the paper to make the adhesion between the papers more stable.
序列表自由内容Sequence Listing Free Content
以上公开的仅为本发明的具体实施例，但是本发明并非局限于此，任何本领域的技术人员能思之的变化都应落入本发明的保护范围。The above-disclosed are only specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be thought of by those skilled in the art should fall into the protection scope of the present invention.

Claims (7)

  1. 一种纸膜袋制作工艺，其特征在于，包括以下步骤：A paper film bag manufacturing process, which is characterized in that it comprises the following steps:
    S1:凹版制作，根据使用需求，制作凹印版；S1: Gravure production, according to the needs of use, make gravure printing plates;
    S2:对纸张进行切割，使其达到合适的尺寸；S2: Cut the paper to a suitable size;
    S3:对纸张进行印刷处理，正面采用水性油墨印刷，背面采用凹印机组印刷水性热敏粘合剂；S3: The paper is printed with water-based ink printing on the front side, and water-based thermal adhesive on the back side with a gravure printing unit;
    S4:进行高温热压封口，最后得到纸膜袋。S4: Carry out high-temperature hot-press sealing, and finally obtain a paper film bag.
  2. 根据权利要求1所述的纸膜袋制作工艺，其特征在于，在步骤S1中，所述凹版制作时，根据需要纸张密封的位置以及大小进行凹印版的制作。The paper film bag manufacturing process according to claim 1, wherein in step S1, when the intaglio plate is made, the intaglio plate is made according to the position and size of the paper seal required.
  3. 根据权利要求1所述的纸膜袋制作工艺，其特征在于，所述纸张采用FSC食品级白牛皮纸。The paper film bag manufacturing process according to claim 1, wherein the paper uses FSC food grade white kraft paper.
  4. 根据权利要求1所述的纸膜袋制作工艺，其特征在于，在步骤S3中，所述油墨采用无毒的水性油墨进行印刷，且采用柔板印刷机进行印刷处理。The paper film bag manufacturing process according to claim 1, wherein in step S3, the ink is printed with a non-toxic water-based ink, and a flexographic printing machine is used for printing.
  5. 根据权利要求1所述的纸膜袋制作工艺，其特征在于，所述水性热敏粘合剂采用特殊的成分组成，按照质量百分比，所采用的成分如下：丙烯酸脂类乳液：40-60%；水溶性树脂：20-30%；乳化剂：1-3%；剩余组分为去离子水；将所述丙烯酸酯类乳液分成两份，其中一份加入水溶性树脂和去离子水，搅拌10-20分钟，获得A组份；另外一份添加乳化剂和去离子水，搅拌10-20分钟，获得B组份，然后组合B滴加到组分A中，最后得到水性热敏粘合剂。The paper film bag manufacturing process according to claim 1, wherein the water-based heat-sensitive adhesive is composed of special components, and the components used are as follows according to mass percentage: acrylic emulsion: 40-60% ; Water-soluble resin: 20-30%; emulsifier: 1-3%; the remaining component is deionized water; divide the acrylic emulsion into two parts, one of which is added with water-soluble resin and deionized water, and stir 10-20 minutes to obtain component A; add emulsifier and deionized water to the other part, stir for 10-20 minutes to obtain component B, then add combination B to component A, and finally obtain water-based thermal adhesive Agent.
  6. 根据权利要求1所述的纸膜袋制作工艺，其特征在于，在步骤S3中，将水性热敏粘合剂进行采用凹印机组进行印刷，涂抹量为每平方米10-18克。The paper film bag manufacturing process according to claim 1, characterized in that, in step S3, the water-based heat-sensitive adhesive is printed with a gravure printing unit, and the smear amount is 10-18 grams per square meter.
  7. 根据权利要求1所述的纸膜袋制作工艺，其特征在于，在步骤S4中，在进行封口时，封口的温度为150-250摄氏度，热压时间不低于0.5秒，封口完成后得到包装用纸膜袋。The paper film bag manufacturing process according to claim 1, characterized in that, in step S4, when the sealing is performed, the sealing temperature is 150-250 degrees Celsius, the hot pressing time is not less than 0.5 seconds, and the packaging is obtained after the sealing is completed Use paper film bags.
PCT/CN2019/113539 2019-09-25 2019-10-28 Paper film bag manufacturing process WO2021056661A1 (en)

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