- Paper and board are versatile supplies used to package foods. Paper packaging can e.g., be manufactured from parchment paper or have the form of bags to package loose foods.
- Carton board is usually used for, e.g., liquid and dry meals, frozen meals, and quick meals. Corrugated board finds broad utility in direct contact with meals (e.g., pizza boxes) and as secondary packaging.
- Paper and board are manufactured from natural fibers of bleached or unbleached cellulose or are, alternatively, recycled from recovered supplies.
Chemical components are wanted within the manufacture of paper and boards to attain different technical functionalities.
- They’re either added to the pulp during production or coated onto the surface afterward. Additives could be primarily categorized into functional components and processing aids. The primary group of components is used to change the properties of the paper.
- They usually stay in the paper and include sizing agents, moist and dry strength resins, softeners, dyes, and pigments. Processing aids are used to enhance the paper-making processes and aren’t, or solely in traces, transferred into the ultimate product.
- Common processing aids are defoamers, felt cleaners, biocides, and deposit control agents. Paper and carton are permeable limitations. Particularly low molecular weight and volatile components, but additionally external
contaminants and non-volatile compounds, can drift from and through the packaging into food.
- Known migrants from paper and board include mineral oils, photo initiators, phthalates, and per- and polyfluorinated substances. Recycled paper and board usually comprise mineral oils and lots of different substances that can migrate into meals at ranges exceeding safe thresholds.
- The supply of those contaminants are often the “raw” materials, i.e., the recovered
paper and board treated with varied chemical substances, lots of which aren’t meant to come into contact with meals or which exceed acceptable levels.
- Though recycling of paper and board is crucial for a society aiming at the circular economy, the secure use of paper and board for FCMs stays a problem: The identification and toxicological evaluation of the migrants from recycled paper and board was judged to be unrealistic.
- Moreover, every producer might produce a brand new cocktail of migrants with every new batch of recycled paper and board. After this matter was brought to public awareness in 2011, many food companies stopped utilizing recycled paper and board and switched to supplies produced from virgin fibers.
- Alternatively, useful limitations can be utilized to scale back the migration from recycled paper and board into meals. Such limitations can either be integrated into an internal plastic bag or coated onto the internal surface of the paperboard box.
Types of Paper and Board:
a) Layout Paper:
Thin transparent paper with a smooth surface. Used for sketching and developing ideas. It’s translucent, so concepts could be traced and altered.
Nevertheless, layout paper is recognized as a cheaper medium.
It’s typically used within the preparation of final ideas and is used for tracing normally.
b) Photocopier Paper:
Fairly cheap when purchased in bulk and is accessible in a variety of colours. It’s also used for photocopying and inkjet printing normally.
Commonly used for drawing however could be used with paint because it has a very good quality surface for pens, pencils, and markers. It could also be used with watercolours, pastels, crayons, inks, and gouache.
c) Corrugated Card:
Comprises two or extra layers of card with interlacing fluted interior part. The fluted interior part provides strength to the card without an enormous increase within its weight.
It’s primarily used for packing objects that need protecting throughout shipping.
d) Cartridge Paper:
It’s costlier than copier paper. It’s a creamy white paper, slight texture normally.
Commonly used for drawing however could be used with paint because it has high quality surface for pens, pencils, and markers. It could also be used with watercolours, pastels, crayons, inks, and gouache.
e) Tracing Paper:
Transparent, hard, and strong. It’s good for tracing fine details as it’s
translucent. Tracing papers strength allows you to scrape off errors utilizing
a craft knife.
They are used for working drawings.
f) Sugar Paper:
Sugar paper is a coloured paper which is available in contrasting colours it’s primarily used for tonal drawings. Varied weights and textures can be found for various tasks.
It’s primarily used for display work and mounting drawings, nonetheless, it’ll fade in sunlight over time.
g) Bleed Proof Paper:
Bleed proof paper is much like cartridge paper however it’s notably good at
separating water-based paints and pens so that they don’t run into areas where you don’t need them.
It’s primarily utilized in for essential presentations where high quality is required.
a. Duplex Board:
Duplex board is a less expensive model of a whiteboard. It additionally supplies different textures for printing.
It’s primarily utilized in meals packaging as recycled materials can’t be used for this objective.
b. Inkjet Card:
Inkjet card is handled in order that it could go through all kinds of inkjet printers.
It’s used for prime-quality print finishes on inkjet printers solely.
c. White Board:
Whiteboard is a strong medium it’s bleached, so it supplies surface for printing.
It’s primarily used for good high quality packaging and book covers.
d. Card Board:
Cardboard is an affordable, recyclable, stiff board that has floor to print onto.
It’s primarily used for packaging, boxes, and cartons.
e. Grid Paper:
A ready-printed grid sheet with vertical and horizontal lines on it. These lines
assist working drawings such as orthographic projection. These grids are measured in millimetres.
It is primarily used for working drawings.
f. Isometric Paper:
Isometric paper is a ready-made printed sheet having isometric lines on it.
These lines are drawn at degrees such as 30 / 60 and 90.
It’s primarily used as a support for isometric drawings.
1. What’s the difference between paper and board?
Paper and cardboards are different in many ways. Although they both are utilized for packaging the way they are manufactured is different. They both are made up of paper but their material is different. Paper-based packaging is used for small things like food and gift items and is lighter than cardboard.
2. Why is duplex board used in food packaging?
Duplex Board is made from pure wood pulp with a bleached liner on one side. It is used in food packaging because it can be easily printed on and can be lined to protect it from drinks and foods.
3. What is sugar paper used for?
Construction paper (also called sugar paper) is a tough, coarse, coloured paper. The texture is slightly rough, and the surface is unfinished. Due to the source material, mainly wood pulp, small particles are visible on the paper’s surface. It is used for projects or crafts.
4. What chemicals are added to paper?
China clay, calcium carbonate, titanium dioxide, and talc are common mineral fillers used in paper production.