{"id":11221,"date":"2023-11-07T09:09:04","date_gmt":"2023-11-07T08:09:04","guid":{"rendered":"https:\/\/inviker.com\/?p=11221"},"modified":"2025-05-29T08:21:52","modified_gmt":"2025-05-29T06:21:52","slug":"kraft-paper-uses-and-sustainable-benefits","status":"publish","type":"post","link":"https:\/\/inviker.com\/en\/blog\/products-packaging\/kraft-paper-uses-and-sustainable-benefits\/","title":{"rendered":"Kraft paper: uses and sustainable benefits"},"content":{"rendered":"\n

Kraft paper, also referred to as brown paper, currently accounts for approximately 80% of global paper production, owing to its unparalleled versatility<\/strong>. Its name is derived from the German word “kraft,” meaning strength or vigour, reflecting its ability to stand the test of time.<\/p>\n\n\n\n

In this article, we will delve into the journey of kraft paper, from its origins to its impact on the modern world. We will explore the various available types, their key characteristics, and their contributions to sustainability. Prepare to immerse yourself in the captivating realm of kraft paper and comprehend why it is the material of the future for eco-friendly packaging<\/strong>.<\/p>\n\n\n\n

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Origins and history of kraft paper<\/h2>\n\n\n\n
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Kraft paper was invented in Germany by Carl F. Dahl in 1879. Dahl discovered a new chemical process for making wood pulp from long wood fibres and patented it in 1884. Its use quickly spread to other countries.<\/p>\n\n\n\n

The kraft process marked a significant advancement in paper production, enabling the cost-effective creation of high-quality kraft paper. Kraft paper became a popular material for packaging during World War II.<\/p>\n\n\n\n

For over a century, kraft paper has been synonymous with quality and durability<\/strong>. However, it has not only proven to be robust but has also become an icon of sustainability. This paper is 100% recyclable and eco-friendly<\/strong>, making it an environmentally responsible choice.<\/p>\n\n\n\n

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Types of kraft paper<\/h2>\n\n\n\n
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In today’s market, there are various types of kraft paper. It is essential to understand their unique characteristics to select the most suitable one for specific business needs.<\/p>\n\n\n\n

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  1. Natural kraft paper: an icon of strength and versatility<\/li>\n<\/ol>\n\n\n\n

    Natural kraft paper represents the classic version, recognizable by its matte and rustic appearance. It contains about 90% wood pulp. Its main features are tear resistance and rigidity, without the need for excessive thickness<\/strong>.<\/p>\n\n\n\n

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    1. Embossed kraft paper<\/li>\n<\/ol>\n\n\n\n

      Embossed kraft paper maintains the authenticity of natural kraft paper but differentiates itself with a characteristic cross-hatched texture<\/strong>. It offers exceptional strength, making it an ideal choice for various applications.<\/p>\n\n\n\n

      Within this category, Inviker’s first-grade kraft paper<\/a> stands out. Crafted from 100% virgin long-fibre wood pulp, it combines exceptional strength with the distinctive cross-hatched texture.<\/p>\n\n\n\n

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      1. Creative kraft paper in various colours<\/li>\n<\/ol>\n\n\n\n

        Coloured kraft paper expands creative possibilities. Available in a wide range of colours, it is cherished in craft projects. Its softness and flexibility, with an approximate weight of 60 gsm, make it suitable for crafts and gifts<\/strong>, or in custom formats for showcasing business-related information.<\/p>\n\n\n\n

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        1. Elegance of white kraft paper<\/li>\n<\/ol>\n\n\n\n

          This type of paper offers durability and strength equivalent to natural kraft paper but undergoes a chemical bleaching process. It is the preferred choice when a sharper and more refined visual appearance<\/strong> is desired without sacrificing strength.<\/p>\n\n\n\n

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          1. Wax kraft paper: the optimal choice for the automotive industry<\/li>\n<\/ol>\n\n\n\n

            Waxed kraft paper<\/a> combines the flexibility of kraft paper with a wax coating on both sides. Despite its flexibility, it retains the strength properties of natural kraft paper. This makes it the ideal choice for high protection packaging in the automotive and metallurgical industries<\/strong>, as it is resistant to grease and moisture.<\/p>\n\n\n\n

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            1. Sustainability in action: recycled kraft paper<\/li>\n<\/ol>\n\n\n\n

              Recycled kraft paper is an environmentally friendly choice<\/strong>, as it is made from 100% recycled materials. It offers an economical alternative<\/strong> compared to virgin kraft paper and is used in the production of packaging and boxes for products that do not require exceptional strength. Its natural colour is light brown.<\/p>\n\n\n\n

              Recycled kraft paper has gained popularity in the market, supporting sustainability by reducing the use of natural resources in its production.<\/p>\n\n\n\n

              At Inviker, we offer third-grade 100% recycled and recyclable kraft paper. This paper is more economical than first-grade paper and is ideal for applications where 100% virgin fibre is not required, such as inner box cushioning.<\/p>\n\n\n\n

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              1. Recycled Testliner<\/li>\n<\/ol>\n\n\n\n

                Testliner is another variety of kraft paper, 100% recycled and highly cost-effective<\/strong>. This type of paper has gained relevance in the industry as it is made from recycled materials, promoting the reuse of resources. Starch is added to ensure greater strength.<\/p>\n\n\n\n

                Its primary application is on the liner of corrugated cardboard<\/strong>, but it is also an optimal choice for painters<\/strong> or as filler material in boxes<\/strong>.<\/p>\n\n\n\n

                Within this category, you will find Inviker’s bicolor testliner paper<\/a>.<\/p>\n\n\n\n

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                Characteristics of kraft paper<\/h2>\n\n\n\n
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                Kraft paper<\/a> is a lignocellulosic material essentially consisting of wood pulp chemically treated in an alkaline medium with sodium hydroxide and sodium sulphide. Its chemical composition comprises 90% cellulose<\/strong>, with reduced amounts of lignin (6 – 7%) and hemicelluloses (3 – 4%).<\/p>\n\n\n\n

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                Cellulose<\/strong> – one of the most abundant biopolymers in nature<\/p>\n\n\n\n

                Lignin<\/strong> – a compound that provides stiffness and structure to wood<\/p>\n\n\n\n

                Hemicelluloses<\/strong> – act as a support matrix for cellulose microfibrils and facilitate the connection between lignin and cellulose<\/p>\n<\/div>\n<\/div>\n\n\n\n

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                There are various kraft paper variants with different weights, ranging from 20 gsm to 120 gsm, depending on the intended use. Its characteristic colour is brown<\/strong>, and although it is possible to dye it in other colours nowadays, its natural tone exudes warmth, craftsmanship, and a rustic ambiance.<\/p>\n\n\n\n

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                Manufacturing<\/h3>\n\n\n\n

                Kraft paper is obtained through a chemical process known as kraft pulping<\/strong>. In this process, trees are mechanically reduced to wood chips that are combined with a chemical solution consisting of sodium hydroxide and sodium sulphide to remove impurities, retaining only strong and robust fibres. Subsequently, these fibres undergo a high-temperature and pressure cooking process.<\/p>\n\n\n\n

                The treated material undergoes a washing process that separates the wood pulp, with about 50% of the original wood weight dissolving. The resulting pulp after the washing process has an opaque brown colour and is ready for further transformation into paper or for a chemical bleaching process.<\/p>\n\n\n\n

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                Colour<\/h3>\n\n\n\n

                The natural colour of kraft paper is light brown<\/strong>, as no dyes are added during its manufacturing. Common examples include kraft paper bags used in supermarkets and food establishments.<\/p>\n\n\n\n

                However, in today’s market, a wide variety of colours can be found, from classic ones like white and dark blue to more vibrant shades like red, gold, orange, and others.<\/p>\n\n\n\n

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                Texture<\/h3>\n\n\n\n

                The texture of kraft paper can vary depending on the type, including options like the classic texture of embossed kraft paper that provides a distinctive touch to 100% virgin first-grade kraft paper.<\/p>\n\n\n\n

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                Strength<\/h3>\n\n\n\n

                Strength is a prominent feature<\/strong> of kraft paper. Despite its relative thinness compared to other types of paper, its long-fibre structure and manufacturing process provide exceptional tear resistance and durability<\/strong>. This strength is particularly valuable in packaging applications, where kraft paper can withstand stresses and effectively protect the products inside.<\/p>\n\n\n\n

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                Uses and applications of kraft paper: beyond packaging<\/h2>\n\n\n\n
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                Due to the versatility of this product, its applications are diverse and extend across various industries<\/strong>. Its primary use lies in products such as bags, envelopes, tapes, multi-layer sacks, bituminous, wax or coated papers, electrical insulators in industrial transformers, corrugated structures, and packaging for large-volume products.<\/p>\n\n\n\n

                Different types of kraft paper are used for transporting, packing, wrapping, or protecting<\/strong>. Being a highly malleable material, it adapts to various needs, as we will see below.<\/p>\n\n\n\n

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                Industrial packaging<\/h3>\n\n\n\n

                Industrial kraft paper is an essential material in industrial packaging<\/strong>. It is used in the production of boxes, bags, envelopes, corrugated cardboard, and other packaging materials to protect products during transportation and storage. Its strength and durability ensure that products reach their destination in perfect condition, offering protection against minor incidents during handling.<\/p>\n\n\n\n

                When subjected to specific treatments or coatings, this paper enhances its protective properties and, therefore, the range of applications in the industrial packaging field.<\/p>\n\n\n\n

                Additionally, due to the growing importance consumers place on environmental conservation and new legislative requirements, kraft paper for packaging is an ideal choice to meet current regulations, reduce costs, and enhance brand image<\/strong>.<\/p>\n\n\n\n

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                Filling and cushioning<\/h3>\n\n\n\n

                In packaging, kraft paper is used as cushioning to protect fragile products<\/strong>. When crumpled, its ability to absorb impacts and tear resistance makes it ideal to ensure that delicate items do not get damaged during shipping.<\/p>\n\n\n\n

                Due to its lightness and reusability, it is commonly used as filling in empty spaces within boxes, especially in its more affordable versions, preventing products from moving<\/strong> within the package.<\/p>\n\n\n\n

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                Material for bags<\/h3>\n\n\n\n

                Kraft paper is used in the creation of eco-friendly bags. These bags are popular in stores, supermarkets, and restaurants. They represent an environmentally responsible option and can be customised with logos and designs.<\/p>\n\n\n\n

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                Paper for painters<\/h3>\n\n\n\n

                Kraft paper plays an essential role in the painting industry. It proves to be a versatile companion in this field, serving the dual purpose of protecting surrounding surfaces<\/strong> and aiding in the creation of patterns and designs for various projects.<\/p>\n\n\n\n

                Its strength and capacity to absorb paint splatters<\/strong> turn it into the perfect choice for maintaining a tidy work area. This, in turn, enables painters to focus on their craft without fretting about accidental damage to undesired surfaces, facilitating the expression of their creative talents.<\/p>\n\n\n\n

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                Construction industry<\/h3>\n\n\n\n

                Kraft paper is essential in applications such as floor and pavement protection, encapsulation of materials such as asbestos, and protecting walls from moisture and mould in building construction.<\/p>\n\n\n\n

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                Food industry<\/h3>\n\n\n\n

                In the food industry, kraft paper plays a fundamental role, appreciated for its versatility and sustainability. It is extensively utilised to craft sturdy and eco-friendly packaging, guaranteeing the preservation and protection of both dry and moist food products<\/strong> during their transit and storage.<\/p>\n\n\n\n

                Its capacity to safeguard product integrity without necessitating plastic coatings positions it as the top choice within this sector, where quality and food safety are of paramount importance. Whether it’s wrapping sandwiches and snacks or packaging grains and baked goods, kraft paper consistently proves itself as a dependable solution.<\/p>\n\n\n\n

                Given the stringent regulations in the food industry, the meticulous tracking of material composition holds vital importance. Therefore, premium first-grade kraft paper, derived from 100% virgin pulp, is preferred in this setting.<\/p>\n\n\n\n

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                Florists and crafts<\/h3>\n\n\n\n

                Florists use kraft paper to wrap bouquets of flowers and arrangements. Additionally, it is appreciated in crafts and DIY projects for its versatility and unique texture.<\/p>\n\n\n\n

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                Gift wrapping<\/h3>\n\n\n\n

                Moreover, kraft paper remains a favoured option for gift wrapping all year round. It introduces uniqueness and eco-friendliness<\/strong> to gift displays and can be tailored for various occasions. It complements ribbons, twine, and ornaments, elevating the presentation for a more enticing look.<\/p>\n\n\n\n

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                Sustainability and certifications in the paper industry<\/h2>\n\n\n\n
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                Certifications<\/h3>\n\n\n\n

                Selecting paper products with these certifications guarantees quality, sustainability, and compliance with environmental and social standards. Some of the key certifications that consumers and businesses should seek include:<\/p>\n\n\n\n

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