In the production of paper cups and bowls, the selection of high-quality raw materials is a crucial link, as it directly determines the quality, safety, and user experience of the final products. Only raw materials that meet strict standards can maximize the performance of the paper cup and bowl machine. Paper cup and bowl machines transformfood-grade base paper, special coatings, and bottom paper or base paper into sturdy, leak-proof, and durable paper cups and bowls through precise processing and molding techniques.

1.Design Specifications and Custom Patterns

Specifications Customization

Paper cups and bowls are widely used in scenarios such as fast food, snacks, fruit packaging, beverages, and hot drinks, so their sizes and capacities need to be tailored to specific needs. Paperjoy supports full customization of paper cup and bowl specifications. For paper cups, the capacity range is 80ml-500ml and the gram weight is 150-320gsm; For paper bowls, the capacity range is 100ml-1500ml and the gram weight is 150-350gsm.

Common specifications include:

Paper cup specifications:

– 80ml-150ml (suitable for small portions of beverages, tastings, desserts)

– 200ml-300ml (suitable for coffee, milk tea, carbonated drinks)

– 400ml-500ml (suitable for large portions of iced drinks, fruit juices)

Paper bowl specifications:

– 300ml (suitable for snacks, side dishes)

– 500ml (suitable for noodles, rice)

– 1000ml (suitable for large portions of fast food, fruit salad)

In the initial communication stage, Paperjoy’s team will conduct in-depth discussions with you to clarify the intended use, target capacity, and usage scenarios of the paper cups and bowls. You can also send physical samples to Paperjoy’s engineers, who will accurately measure key parameters (for bowls: upper diameter, lower diameter, height; for cups: mouth diameter, bottom diameter, height) and create detailed size drawings to ensure that the produced paper cups and bowls fully meet your usage requirements.

Pattern and Printing Design

The paper cup fan (the main body of the paper cup or bowl) has a blank area on one side for bonding and curling, and the other areas are available for custom patterns.

Paperjoy’s design team will create preliminary design drafts based on your needs, including color matching, pattern details, brand logos, and promotional information. Paperjoy uses food-grade environmentally friendly water-based ink for printing, which has the advantages of bright colors, clear patterns, and no pungent odors, ensuring that the paper cups and bowls are safe for food and beverage contact.

In addition, Paperjoy supports multi-color printing services, with options ranging from 1 to 6 colors, to meet the diverse aesthetic and brand promotion needs of customers. After the sample is produced, you can conduct a comprehensive evaluation of the pattern effect, color accuracy, and overall appearance, and Paperjoy will make timely adjustments according to your feedback.

2.Confirm Material Requirements

Paper Selection

When determining the material requirements for paper cups and bowls, the first step is to clarify the usage scenarios, including the type of food or beverage to be loaded (solid, liquid, oily, hot, cold) and the environmental conditions (high temperature, low temperature, long-term storage). Based on this, select appropriate food-grade base paper and determine its thickness and strength to ensure the load-bearing capacity, durability, and thermal stability of the paper cups and bowls.

For example:

For paper cups:

• Paper cups used for holding hot coffee, milk tea, and other high-temperature beverages need to select base paper with good thermal insulation and heat resistance to prevent scalding hands and cup deformation.

• Paper cups used for holding iced drinks, fruit juices, and other cold beverages need to choose base paper with good water resistance to avoid moisture absorption and softening of the cup body.

• Paper cups used for holding carbonated drinks need to select base paper with high stiffness and pressure resistance to prevent the cup from expanding and deforming due to gas pressure.

For paper bowls:

• Paper bowls used for holding hot noodles, porridge, and other high-temperature foods need to select base paper with high heat resistance and thick thickness to avoid deformation and softening.

• Paper bowls used for holding fried chicken, French fries, and other oily foods need to choose base paper with strong oil resistance to prevent oil penetration.

At the same time, it is necessary to ensure the compatibility between the selected base paper and the paper cup and bowl machine. Not all types of paper can be smoothly processed by the machine. The Paperjoy technical team will provide professional advice based on your device model and parameters to ensure a smooth production process.

Coating Selection

The coating on paper cups and bowls plays a crucial role in their waterproof, oil-proof, and heat-resistant properties. Since paper cups and bowls have similar functional requirements, Paperjoy primarily offers the following coating types:

– Polyethylene (PE) Coating: Offers excellent waterproof, oil-proof, and heat-resistant properties, suitable for most paper cups and bowls, especially for hot food/drinks and oily foods. It effectively prevents liquid penetration and grease leakage, maintaining the integrity of the paper cup and bowl. For hot beverage cups, the PE coating can also improve heat retention to some extent.

Furthermore, for paper cups intended for holding hot or cold beverages, Paperjoy offers a double-layer PE coating option, further enhancing the cup’s heat resistance and leak-proof performance.

3.Raw Material Proportioning

Paper Cup and Paper Bowl Raw Material Proportioning

In the production process of paper cups and paper bowls, the reasonable proportion of paper cup fans and bottom paper is crucial to ensuring production efficiency and product quality. After long-term practice and optimization, Paperjoy has summarized a scientific proportioning standard: every 4-5 tons of paper cup fans need to be matched with 1 ton of bottom paper (used to make the cup bottom).

The paper cup fan is the main part of the paper cup and paper bowl, and its thickness and quality directly affect the load-bearing capacity, thermal insulation performance, and service life of the paper cup and paper bowl. The bottom paper needs to have higher strength and hardness to enhance the support of the cup bottom, ensuring that the paper cup and paper bowl does not leak, deform, or collapse when loaded with food. This scientific proportioning not only avoids material waste and reduces production costs but also ensures the structural stability and practicality of each paper cup and paper bowl, making it perform well in various usage scenarios.

4.Raw Material Production Process

The production process of paper cup raw materials includes multiple key links, and each link is strictly controlled by Paperjoy to ensure product quality. The production processes of paper cup and bowl raw materials are similar, with slight differences in the die-cutting and forming stages. The specific processes are as follows:

Production of Paper Cup and Fans Paper Bowl Fans

① Raw material selection: Select high-quality food-grade virgin wood pulp base paper that meets national standards, with stable performance and no impurities. For paper cups that need higher thermal insulation, we can also provide double-layer base paper options.

② Coating processing: According to customer needs, coat the base Paper With Pe coating through advanced coating equipment to ensure uniform coating and firm adhesion. For paper cups used for hot drinks, double-layer coating can be performed as required.

③ Printing and drying: Print the designed patterns and logos on the coated base paper using professional flexographic printing machines, and then dry the ink through high-temperature drying equipment to ensure that the patterns are not easy to fade or fall off.

④ Die-cutting forming: Use a precision die-cutting machine to cut the printed and dried base paper into paper bowl or paper cup fan-shaped pieces of specified size and shape. The fan-shaped edge of the paper cup is designed with adhesive edges to ensure precise size and smooth edges.

Production of Paper Cup Bottom Paper Blanks

① Base paper selection: Select suitable strength food-grade base paper as the raw material for the bottom paper to ensure the support and leak-proof performance of the paper cup and bowl bottom.

② Coating treatment: Coat the surface of the bottom paper with a layer of PE coating to enhance its waterproof and oil-proof performance.

③ Precision cutting and die-pressing: The coated paper is cut into rolls of a specified width by a slitting device, which makes it easier for the molding equipment of the paper bowl machine to press it into a bowl bottom shape of a specific size.

Final Assembly and Molding

Paper cup and paper bowl machine assembly: The paper cup and paper bowl machine assembles the processed paper cup fans and bottom paper through processes such as folding, gluing, curling, and bottom sealing.

The initial use of the paper cup machine requires a startup test to check whether the bonding is firm, whether the bottom is tightly sealed, and whether the size is accurate.The tested and debugged paper cup machine can improve the forming rate of paper cups and bowls, ensuring stable production of finished paper cups and bowls.

5.Paperjoy Core Advantages

① Food-Grade Safety Assurance

Utilizing advanced coating technology and high-quality coating materials, Paperjoy’s paper cups and bowls offer excellent waterproof and oil-proof properties. The PE coating effectively prevents water and oil penetration, and also provides good protection against cold water and common greases. Whether it’s a paper bowl for soup, porridge, or fried food, or a paper cup for coffee, milk tea, or iced drinks, they maintain their shape, preventing leakage and oil seepage, ensuring a clean and convenient user experience.

② Excellent Waterproof and Oil-Proof Performance

Adopting advanced coating technology and high-quality coating materials, Paperjoy’s paper cups and bowls have excellent waterproof and oil-proof effects. The PE coating can effectively block the penetration of water and oil. Whether it is paper bowls holding soup, porridge, fried food, or paper cups holding coffee, milk tea, iced drinks, they can maintain their shape and integrity, avoiding leakage and oil seepage, and ensuring a clean and convenient user experience.

③ Strong Sealing and Leak-Proof

Paperjoy’s paper cup raw materials are compatible with paper cup or bowl machines equipped with bottom knurling, heat-sealing, or bottom-pressing technologies. During production, a professional process tightly bonds the bowl/cup bottom to the bowl/cup body, resulting in a stronger connection without the need for additional adhesives. This not only improves the leak-proof performance of the paper cups and bowls but also enhances the structural stability of the bottom, preventing it from detaching or deforming when holding heavy objects or hot food/drinks.

④ High-Quality Virgin Wood Pulp Raw Materials

Paperjoy insists on using high-quality virgin wood pulp as the base raw material for paper cups and bowls. Virgin wood pulp has the characteristics of high fiber strength, good uniformity, and stable performance, which can make paper cups and bowls have higher strength and durability. Compared with recycled paper, virgin wood pulp paper is cleaner and more hygienic, with no peculiar smell, and is more environmentally friendly. It reduces the pollution caused by the recycling of waste paper and meets the environmental protection needs of modern society. Paperjoy factory is located near major paper mills, allowing for rapid production and reducing the transportation cost of raw paper

⑤ Versatile Customization Capabilities for Cups and Bowls

Paperjoy has rich experience in customizing paper cups and bowls, supporting full-process customization from specifications, materials, coatings to patterns. Whether you need small-capacity paper cups for beverages or large-capacity paper bowls for fast food, Paperjoy can provide personalized solutions according to your industry characteristics and usage scenarios. At the same time, we can match the appropriate production processes and raw material ratios for different machines to ensure efficient and stable production.

With the above advantages, Paperjoy can provide customers with high-quality, safe, and practical paper cup and bowl products, meeting the diverse needs of different industries and scenarios. Whether you are engaged in the catering industry, snack retail, beverage operations, or food packaging, Paperjoy can customize suitable paper cup and bowl solutions for you and provide professional technical support and after-sales service.

The PaperJoy engineering team will assist you in smoothly completing production debugging work, improving your product yield, and providing stable product quality and supply to help you build your own paper cup brand.

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Company Name: Nanning Paperjoy Paper Industry Co., Ltd.
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Country: China
Website: https://www.paperjoypaper.com/