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Goodrich Agrochem Private Ltd
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Diversified, Quality & Innovative Products. Paper & Pulp Chemicals, Textile Printing Thickeners, Botanical Extracts, Soapnut (Reetha) Products.
Diversified, Quality & Innovative Products. Paper & Pulp Chemicals, Textile Printing Thickeners, Botanical Extracts, Soapnut (Reetha) Products.

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Wax Pick
 
Wax Pick Testing is for the assessment of surface power on paper and paperboard. Waxes are heated and applied to the facade of the sheet. It is vital for all uncoated printing papers.

Once cooled, they are pulled from the surface and the wax stick is checked to observe if it has pulled fiber or covering from the surface. The peak value wax which does not rip apart the surface is accounted as the pick strength of the sheet.

This conventional test has been used from several years and is renowned in all parts of the world. It is simple, easy to use, and inexpensive.
 
 
Goodrich Agrochem’s Paper strength additives range helps to improve the wax pick level in writing/printing grades of paper.
 
For more information please visit:
Web: http://goodrichworld.com/products/paper-strength-additives.aspx  

Fiber Distribution
 
Paper is made up of plant fiber, stopping, sizing and pigment. Plant fiber is divided into four kinds:
a)      Stem fiber – straw, wheat straw, reed, bamboo and so on.
b)      Wood fiber – pine, spruce, birch and so on.
c)       Bast fiber – flax, hemp, cotton bast, mulberry bast and so on.
d)      Seed fiber – cotton, rag and so on.
 
Paper fiber parameters consist of length, roughness, categories, and proportion and so on. If these indexes are used as quality parameters, it is of lesser importance. However, it is of impact if the length of fiber is associated with thickness of cell wall and thread diameter. Fiber magnitudes such as length, width, cell wall thickness and roughness are all interconnected, so its amalgamation properties have an immense variation on papermaking.
 
 
Goodrich Agrochem’s Paper strength additives range helps to improve the fiber distribution of paper.
For more information please visit:

http://www.goodrichworld.com/products/paper-strength-additives.aspx

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Folding Endurance (Double Folds)

‘Folding Endurance’ of a stripe of paper gives an assess of the resistance presented by the stripe to the application of outer force in the shape of various and repetitive folds, prior to breaking. This test determines the appropriateness of a paper kind to be used in situations where it will be subjected to frequent folding, winding, and creasing. Hence this test finds application meant for such papers which bear such forces or handled very regularly, similar to currency papers, packaging papers, maps, pamphlets, cartons, cover papers, bond papers, ledgers etc. Currency paper has the maximum folding endurance. The factors that influence this assets of paper comprise fiber span, power of fiber, wetness content, make use of fillers etc. For studying the ageing characteristics of a paper the standards of fold endurance prior to and subsequent to accelerated environmental ageing are made use of. Quantitatively it is calculated as the amount of double folds, coupled with a particular load that a stripe of paper, with an exacting measurement, can endure before it breaks. There are four dissimilar mechanism types or designs which are used to take out this assessment and the assessment outcome shaped by them diverge because of variations in the stripe loading applied, stripe folding slant, and the rate of folding. The tests using the diverse instruments are carried out according to split standards, for e.g. the Schopper type tester is carried out as per TAPPI T423, and the MIT type tester is done as per TAPPI T511.
 
Goodrich Agrochem’s Paper strength additives range helps to increase the double fold property of paper.
 
For more information please visit:
http://www.goodrichworld.com/products/paper-strength-additives.aspx  

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Fillers in Paper-making

Fillers are an imperative part of paper-making. In almost every paper and paperboard grade fillers can be found in the furnish. The amounts of fillers fluctuate from none to at least 30% of the total furnish. They are used in array to advance certain properties of the final product. The pigments that are principally used for fillers in paper are kaolin and calcium carbonate.

Paper fillers are pigment powder that is produced primarily from natural minerals. Minerals are combinations of numerous elements such as e.g. carbon and calcium. The element sizes of fillers used in paper-making are approximately from 2 μm to 10 μm. Rougher and larger particles are used in fillers compared to the ones that are used in paper coating. Filler particles contain larger particle size distribution. The tincture used in coating is likely to be brighter too. These particulars divide the pigments to fillers and coating pigments. Fillers are much cheaper than coating pigments.

There are numerous grounds why fillers are used in paper-making. The foremost reasons are their low down cost compared to fiber and their capability to advance ocular properties in the final outcome. Fillers can also advance exterior properties of paper and by that have a constructive effect on the printability of the final product. The application of fillers conversely brings also various challenges in paper-making. Fillers have reduced binding capability which confines their use. Scanty binding results in inferior strength in paper.


Goodrich Agrochem’s Paper strength additives range helps to retain the filler level in paper-making process.


For more information please visit:
Web: http://goodrichworld.com/products/paper-strength-additives.aspx

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Brightness, Whiteness and Color

Brightness is referred as the proportion of reflectance of blue beam only at a wavelength of 457 nm. Whiteness refers to the degree that paper diffusely replicate beam of all wave lengths right through the visible band. Whiteness is an appearance phrase. Color is a visual value. Color might appear dissimilar when viewed underneath a diverse light source. Brightness is randomly defined, but cautiously standardized, blue reflectance that is used throughout the pulp and paper industry for the managing of mill processes and in definite types of R&D programs. Brightness is not whiteness. However, the brightness values of the pulps and pigments available into the paper offer an exceptional measure of the maximum whiteness that can be achieved with accurate tinting. The color of paper, like of other materials, depends in a complex manner on the characteristics of the observer and a numeral of substantial factors such as the spectral energy division of the illuminant, the geometry of illuminating and screening, the nature and scope of the encircle and the ocular characteristics of the paper itself.

Color is related to perception and therefore measured or specified in terms of color space. A commonly used system is the CIE L, a, b system. This is based on the idea of color opposites.
 L - Measure of luminance and varies from 100 for perfect white to 0 for perfect black.
a - Redness to greenness.
b - Yellowness to blueness.

Goodrich Agrochem’s Coating & Laminating Binder products are an excellent carrier for optical brightening agent & pigments.
 
For more information please visit:
Web: http://www.goodrichworld.com/products/coating-binder-cellbond.aspx

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Stiffness

Stiffness is the compute of force requisite to bend a paper throughout a specified slant. Stiffness is a vital asset for box boards, corrugating standard and to firm degree for printing papers also. A limpy and feeble paper can be source for feeding and delivery problems in larger sheet presses. A sheet that is excessively stiff will cause problems in copier machines where it must pass through over, under, and around feed rollers. Bond papers also necessitate assured stiffness to be flat in typewriters etc.
A measure of flexural rigidity, Stiffness is the bending moment (g-cm or mNm) required to repel the free end of a 1.5 inch wide vertically clamped sample 150 from its middle line when weight is applied 50 mm away from the clamp. It is measured in MD &CD.
Droop Rigidity: Droop rigidity measures the stiffness of the paper or board, more often applied to lighter mass grades. CD refers to cross direction, and MD to machine direction, Droop rigidity is high in the machine direction. The higher the value the stiffer the paper
 
Goodrich Agrochem’s Coating & Laminating Binder products provide solutions to improve the stiffness in paper.
 
For more information please visit:
http://www.goodrichworld.com/products/coating-binder-cellbond.aspx

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Ply Bond/ Scott Bond

The inner Bond Strength of paper or paperboard also known as Ply Bond Strength or Z Directional Strength is the capability of the product to oppose splitting when a tensile weight is applied through the paper’s thickness i.e. in the Z direction of the sheet.
The inner bond strength is frequently resolute on high fastener coated Fine papers, offset papers and for multiply papers e.g. crest liner of carton board or abrasive paper used to form belts in grinding machines. One meticulous application is shaping the ply bond strength of “Peel able” 
The inter-layer strength of the paperboard, measured on Scott Bond Tester, expressed in J/m2. In paper, it is a measure of the internal strength of the sheet.

Goodrich Agrochem’s new age Grafted Bio Polymer for Kraft paper / liner board & writing / printing / news printing paper industries  helps in improving the ply-bonding strength of paper.
 
For more information please visit:
Web: http://www.goodrichworld.com/products/paper-strength-additives.aspx

De-sizing

For fabrics prepared from cotton or blends, the distort threads are layered with a bonding agent substance known as 'size‘; to avoid the threads flouting during weaving. Although many diverse compounds have been used to size fabrics, starch and its derivatives have been the major general sizing agent. After weaving, the size must be removed all over again in order to organize the fabric for dyeing and finishing.
This procedure (de-sizing) must be conceded by treating the fabric with chemicals such as acids, alkali or oxidizing agents. However, starch flouting enzymes (amylases) are chosen for de-sizing due to their high efficiency and precise action. Amylases carry about absolute removal of the size with no any harmful effects on the fabric. An additional benefit of enzymes in contrast to strong chemicals mentioned on top of is that enzymes are environment friendly.

Goodrich offers amylases for de-sizing which work at different temperatures and for different equipments.

For more information please visit:
Web: http://www.goodrichworld.com/products/textile-enzymes-derivatives.aspx  

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Bio-polishing

Cotton and other natural fibers based on cellulase can be enhanced by an enzymatic action known as Bio­-polishing. This action gives the fabric a smoother and glossier emergence. The treatment is used to eliminate fluff - the minute strands of fiber that stick out from the surface of thread. A ball of fluff is called a 'pill' in the textile trade. After Bio­-polishing, the fluff and pilling are condensed. The other profits of removing fluff are a softer and smoother handle, and better color brightness.

Goodrich Agrochem has developed the EnziTex series — specialized cellulases for the bio-polishing of fabrics.

For more information please visit:
Web: http://www.goodrichworld.com/products/textile-enzymes-derivatives.aspx  

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Stonewashing
Stonewashing with pumice stones started out closely as it sounds: fabric was washed with stones. By the development of cellulases, stonewashing implicated a lot of pumice rock plummeting around in a washer amid denim garments. As the advance of cellulase, the stonewashing succession time has been slash in half when used in combination with pumice stones. In addition, stonewashing with cellulase is higher to washing with pumice alone as it increases garment softness and outcome in higher levels of fabric abrasion.
Whilst initially developed, cellulase was an acid enzyme with a pH level of about 5. Acid cellulase is destructive, and although it produces high levels of abrasion, it also reduces the fabric’s tensile power and outcome in a high quantity of re-deposition, or back staining.
Neutral cellulase with a distinctive pH of 6.5 – does not decrease the fabric’s tensile strength or back stain as strictly as acid cellulase does. However, neutral cellulase is not as destructive as acid cellulase and usually commands a higher market price.

Goodrich Agrochem’s neutral cellulase enzymes provide unique attributes, as well as brightness and contrast, to denim wash.

For more information please visit:
Web: http://www.goodrichworld.com/products/textile-enzymes-derivatives.aspx  
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