Back
Home » Insync
  •  
    Filmi Bollywood
    • Star Screen Awards 2018 Red Carpet: Salman Khan Makes A Stylish Appearance; Looks Dapper
    • Alia Bhatt, Anushka Sharma & Deepika Padukone Wear Similar Outfits: Snapped Together At Event
    • Shah Rukh Khan’s Tweet To Wife Gauri Khan Will Make You Fall In Love Him All Over Again!
    • RIP! Akshaye Khanna's Mother Geetanjali Khanna Passes Away At The Age Of 70!
    • Sohail Khan Hosts Birthday Bash For Son Nirvan; Celebs Arbaaz, Malaika, Sonakshi & Others Attend
    • Katrina Kaif Says She Avoids Confrontation: Relates To Her Character From Zero
    • Pictures! Janhvi, Sara, Kriti, Karan Attend Dinesh Vijan’s Classy Cocktail Party
    • Karan Johar Is Spotted Hanging Out With Friends At Popular Juhu Club
    • Malaika Arora Seen In An Effortless Chic Look Today: Spotted At Her Fashion Store
    • Priyanka Chopra- Nick Jonas To Go To Switzerland For Their Honeymoon? Read Details Here!
    • Ranveer, Deepika, Rajkummar, Kartik Set The Dance Floor On Fire At Dinesh Vijan's Wedding Bash!
    • ‘Taimur’ Named Movie? Madhur Bhandarkar Apparently Registers 'Taimur' As Movie Title!
    • Newbies Zaheer & Pranutan Talk About Notebook: It Is Beautiful, Colourful And Happy Says Zaheer
    • Sara Ali Khan Talks About Mum Amrita Singh’s Reaction To Kedarnath!
    • ‘Fraud Saiyan’ Releases First Song: Remixed Version Of Hit Urmila Track ‘Chamma Chamma’
    • First Pics From Isha- Anand's Wedding Reception: Kartik Aaryan, Dia Mirza & Others Arrive!
    • First Pics From Isha- Anand's Wedding Reception: Ekta Kapoor, Sunny Deol & Others Arrive!
    • Acclaimed Actors Kalki Koechlin, Jaya Bachchan Attend 2nd Indo-French Professional Meetings
    • Ranveer Singh After Marrying Deepika Padukone: I Highly Recommend People To Get Married, It's Good!
    • Sonam Kapoor Lands Dulquer Salmaan In Trouble With Her 'Weirdo' Driving Video!
Have You Wondered Why Pages In A Book Turn Yellow Over Time?
Boldsky | 9th Oct, 2018 10:38 AM
  • The Paper Is Made From Wood

    Paper is generally made from the white cellulose of wood. Wood also has a dark substance called lignin, which is also an ingredient in paper-making.

    Most Read : Heard About Tantric Sex? Here Is What You Need To Know!


  • About Lignin

    Lignin is the compound that makes the wood and trees stiff as they stand upright. It also acts as a glue to bind the cellulose fibres together as well. It was found out that the exposure of lignin to air and sunlight is the main reason for the paper to turn yellow.


  • The Reason Why Papers Turn Yellow

    The researchers revealed that when the lignin molecules are exposed to oxygen in the air, they tend to start changing and they become less stable. The lignin seems to absorb more light, which as a result gives off a darker colour.


  • The Less Lignin, The Whiter The Paper Is

    It is revealed that if more lignin is removed, the longer the paper is said to remain white. While the paper manufacturers use the bleaching process to remove as much lignin as possible, the quality used for making newspapers and textbooks is cheap, and hence this is the reason you would find the papers and book pages turning yellow after a point of time.

    Most Read : Do You Know About The 10 Intriguing Facts On Life?


  • The Paper Bags Are Sturdier

    The manufacturers of brown paper grocery bags and cardboard shipping boxes revealed that they take advantage of lignin, as it makes the product sturdier. Since these products are not bleached, it leaves them with a much browner look than a regular newspaper. Hence, this is the reason due to which the bags become stiff enough.

    Most Read : This Is The Black Magic Capital Of India

    Wish to read more interesting trivia related to lifestyle? Let us know in the comment section, and we shall cater to you more variety.




Every time you see an old book, have you ever wondered as to why the pages of the book have turned yellow?

Even though the books or newspapers haven't been used for a while, the pages seem to turn yellow, and the reason for the papers to turn yellow is entirely scientific.

Find out more about the reason why newspapers and pages in old books turn yellow.

   
 
Health and Life
  • 20 Lesser Known Health Benefits Of Basil Leaves, Nutrition & Recipes
  • 20 Wonderful Benefits Of Red Spinach, Nutrition & Recipes
  • 17 Effective Benefits Of Arrowroot For Health, Hair And Skin
    • 20 Amazing Health Benefits Of Watercress, Nutrition & Recipe
    • Cyclic Vomiting Syndrome: Symptoms, Causes & Treatment
    • Pigeon Peas: 10 Health Benefits, Nutritional Value & Recipe
      • 28 Amazing & Effective Home Remedies For Goitre
      • Black-eyed Peas: 12 Health Benefits, Nutritional Value & Recipes
      • Breadfruit: 13 Potent Health Benefits, Nutritional Facts And How To Consume
        • Can Excess Iodine Cause Hypothyroidism? Recommended Usage, Risk Factors & Warnings
        • 12 Benefits Of Bengal Gram (Black Chana Or Garbanzo Beans) For Health
        • 17 Incredible Health Benefits Of Rambutan, Uses, Nutritional Facts & Recipes
          • Liposarcoma: Types, Symptoms, Causes, Diagnosis & Treatment
          • 9 Lesser Known Benefits Of Safflower Oil; Does It Really Aid In Weight Loss?
          • What Is Kefir? Its Types, Benefits And How To Make It
            • Low Urine Output (Oliguria) – Causes, Symptoms, Diagnosis & Long-term Outlook
            • 16 Healthiest Things To Add To Your Daily Tea
            • Ackee: Benefits, Nutritional Value & Healthy Recipes