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Custom Wet-Strength Kraft Paper

Wet-Strength Kraft Paper

OEM/ODM Wet-Strength Kraft Paper Manufacturer in China.

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  • Wet-Strength Yellow Kraft Paper
    Wet-Strength Yellow Kraft Paper
    Product Features: Good water resistance, and good air permeability. The wet-strength is durable for 2~3 months. Preventing fruit splitting, insect damage and residual pesticides are precluded. Specifications Basis weight: 28~65 gsm. Common roll sizes: 315, 333, 355, 415, 455,610, 650, and 845 mm. Special specifications can be manufactured to customers'demands. Applications: Suitable for use on grafted pears, the 20th century apple-pears, Jinhuang mangos, and sweet sops.
  • Wet-Strength Black Kraft Paper
    Wet-Strength Black Kraft Paper
    Product Features: Good water resistance, and good air permeability. The wet-strength is durable for 2~3 months. Preventing fruit splitting, insect damage and residual pesticides are precluded. The black coloration won’t bleed, and excellent air permeability, allowing fruit to turn ripe uniformly. Specifications Basis weight: 31~38 gsm. Common roll sizes: 400, 430, 625, 630, and 710 mm. Special specifications can be manufactured to customers'demands. Applications: Suitable for use as the inner bags for the Jinhuwang mangos, crispy pears and apples.
  • Wet-Strength Red Kraft Paper
    Wet-Strength Red Kraft Paper
    Product Features: Good water resistance, and good air permeability. The wet-strength is durable for 2~3 months. Preventing fruit splitting, insect damage and residual pesticides are precluded. The black coloration won’t bleed, and excellent air permeability, allowing fruit to turn ripe uniformly. Specifications Basis weight: 27~38 gsm. Common roll sizes: 400, 430, 625, 630, and 710 mm. Special specifications can be manufactured to customers'demands. Applications: Suitable for use as the inner bags for the Jinhuwang mangos, crispy pears and apples.
  • Wet-Strength White Kraft Paper
    Wet-Strength White Kraft Paper
    Product Features: Good water resistance, and good air permeability. The wet-strength is durable for 2~3 months. Preventing fruit splitting, insect damage and residual pesticides are precluded. Bags of low transparency suitable for use on wax-apples and grapes; bags of high transparency suitable for use on mangoes and peaches. Specifications Basis weight: 28~45 gsm. Common roll sizes: 315, 325, 350, 375, 410, 475, 570, 610, 720, and 760 mm. Special specifications can be manufactured to customers'demands. Applications: Suitable for use on peaches, grapes, wax-apples and mangoes.
Description Additional information Leave a message
It is made of bleached coniferous pulp and has white, green and yellow fruit bag paper. White fruit bag paper is mainly used for bagging grapes, citrus and other fruits. Due to good transparency, ultraviolet light in the sun irradiates the skin surface, which can make the fruit skin colorful; Green fruit bag paper can filter other spectrum, mainly used for green grapes such as raisin bagging; Yellow fruit bag paper is mainly used for fruit bagging such as peaches.

We are leading Wet-Strength Kraft Paper manufacturers in China, we have 8 paper machines and 6 units of fruit protection bag making machines, so we can custom print Wet-Strength Kraft Paper. Want to wholesale Wet-Strength Kraft Paper in bulk ? Feel free to quote or visit our advanced factory before your order.

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Zhejiang Xinfeng Special Paper Co., Ltd.

Zhejiang Xinfeng Special Paper Co., Ltd is a modern joint-stock company integrating special paper research and development, raw paper production, deep processing and sales. The company has 206 employees and total assets of 100 million yuan. The leading products cover 28-300g quantitative range, including special anti-counterfeiting paper, various fruit sacking paper and fruit sacking paper, packaging paper three series of more than 100 varieties. Currently, our company is the Industry standard-setting enterprise of Fruit Protective Bags Paper in China. As famous Wet-Strength Kraft Paper suppliers, our product sales in both domestic and international marketplaces, the company is highly competitive globally. We wholesale protection bags for bagging Wet-Strength Kraft Paper on tree.

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Industry knowledge

What is wet-strength Kraft paper, and what are its properties?

Wet-strength Kraft paper is a type of paper that has been treated with a special chemical to increase its strength and durability when wet. It is typically made from Kraft pulp, which is a strong and resilient type of paper pulp derived from softwood trees.
The wet-strength treatment involves the addition of a resinous material to the paper during the papermaking process. The resinous material is typically made from synthetic polymers, such as urea-formaldehyde or melamine-formaldehyde, which are known for their excellent water-resistant properties. The resinous material helps to strengthen the paper fibers and prevent them from breaking down when exposed to water or other liquids.
The properties of wet-strength Kraft paper include:
High tensile strength: Wet-strength Kraft paper has a high tensile strength, which makes it highly resistant to tearing or puncturing when wet.
Water resistance: Wet-strength Kraft paper has excellent water resistance properties, which means that it can withstand exposure to water or other liquids without becoming weak or disintegrating.
Durability: Wet-strength Kraft paper is highly durable, which makes it suitable for use in applications where the paper will be exposed to harsh environmental conditions or rough handling.
Versatility: Wet-strength Kraft paper is highly versatile and can be used for a wide range of applications, including packaging, food wrapping, and industrial uses.

How is wet-strength Kraft paper made

Wet-strength Kraft paper is a type of paper that has been specially treated to resist disintegration when wet. It is commonly used for applications such as paper bags, food packaging, and industrial wrapping where it may come into contact with moisture or liquid.
The manufacturing process for wet-strength Kraft paper involves several steps:
Pulp preparation: Wood chips are processed into pulp by chemical or mechanical means. Kraft pulp is made by cooking wood chips in a solution of sodium hydroxide and sodium sulfide, which breaks down the lignin in the wood and separates the fibers.
Kraft paper production: The Kraft pulp is then processed into Kraft paper using a paper machine. The paper machine consists of a series of rollers and screens that form the paper from the pulp. The paper is then dried and wound into rolls.
Wet-strength treatment: The wet-strength treatment is typically applied to the paper after it has been formed and dried, but before it is wound into rolls. The treatment involves adding a wet-strength resin to the paper, which bonds the fibers together and prevents the paper from disintegrating when wet.
Drying and finishing: After the wet-strength treatment has been applied, the paper is dried again to remove any excess moisture. It is then finished by calendering, which involves passing the paper through a series of rollers to smooth and compress the surface.