LL19 PRIME ECF NBSK Pulp

Printable Version

• Bright
• Clean
• Pure
• Well-fibrillated
• Trouble-Free
• High Black Spruce content
• Premium-Reinforcement
• From the fiber basket of Northwestern Ontario, Canada.

Northern Bleached Softwood Kraft (NBSK) Pulp

• NBSK market pulps are used primarily as reinforcement fiber in paper grades such as newsprint, supercalandered, coated mechanical fiber (LWC, MWC, and HWC), coated freesheet, specialties, tissue, towel and napkin. **
• NBSK pulps provide a long, strong fiber network to increase wet web strength and runnability on the paper machine, printing press and other converting operations; they provide the long-fiber network that maintains the sheet integrity throughout the papermaking process. **
• NBSK pulps are used at levels ranging from as low as a few percentages in some newsprint to approximately 35% in the ultra lightweight coated papers, coated freesheet and tissue, towel and napkin grades, and up to 100% in some specialty grades. **
• NBSK is by far the most diverse of all the market pulp categories. This diversity can be traced to three root causes: Climate, Geography and the Fiber Species’ Morphology. Upon close examination of the properties of each NBSK market pulp, one will find that there is considerable difference in fiber morphology and performance characteristics that, by choosing the most appropriate pulp, may significantly improve performance and reduce overall costs. **

The Black Spruce Advantage

• "Black spruce’s outstanding attributes dovetail nicely with customers’ very specific requirements and yet these attributes have almost no relation to all the traditional ways of measuring a pulp’s quality. The excellent fit between this pulp and specific applications came about only after the pulp began to be evaluated on the basis of customers’ specific requirements." **
• Black spruce pulp produces three highly desirable qualities for premium facial tissue producers: 1) excellent wet tensile strength for these very low grammage tissue grades, which are made on extremely high speed machines. 2) good sheet smoothness (levelness, lack of pitting, good profile) and 3) superior crumple characteristics (the ability to remain wadded when discarded). **
• Black spruce’s thin walls allow it to be refined with relative ease – not only from the standpoint of speed, but also for the high strength values it produces, especially in tensile and fold properties. Black spruce NBSK has long been a favorite of papermakers for its uniformity, reliability and predictability. The ease of fibrillation and the number of fibrils produced during refining allows black spruce to exhibit excellent wet tensile strength, which is highly dependent upon the degree of the fibers’ mechanical entanglement and the fibrils of each fiber. **
• "Some benefits of a strong-thin walled pulp are that refining energy can be as much as 70% less to reach the same intermediate level of tensile breaking length (8km); Tear values can be as much as 67% higher; and freeness nearly 35% higher. Also, fiber strength can be 25% higher when comparing one to the other. The ratio of coarseness to fiber length, a key predictor of reinforcement potential, can vary by 50%..." **

"Depending on the particular paper grade and process capabilities it is possible to make significant improvements in product performance by selecting the best NBSK from the commodity pulps available in the marketplace." **

LL19 PRIME Advantages

• LL19 PRIME’s distinctive characteristics are its relatively narrow fiber length distribution, excellent uniformity and reliability. Virtually every lot can be expected to refine and perform exactly as did the last one. This allows the paper mill’s stock preparation department to predetermine and standardize refining levels with a much higher degree of accuracy. **
• LL19 PRIME’s high Black Spruce content and slender fiber wall thickness helps produce a pulp with an excellent response to refining, which is very beneficial to those paper mills endeavoring to reduce energy costs or to maximize throughput through their refiners. These slender fibers produce a smooth, and dense base stock for a variety of coatings. These qualities allow the coating color to be formulated with a minimum of binder. This allows coating color designers to create high pigment coatings that exhibit excellent printed gloss and color fidelity. Outstanding printability can most often be traced back to an accommodating base stock that permitted the coating color to be formulated with a high pigment/binder ratio. **
• LL19 PRIME is one of the world’s best reinforcement pulps. It has some of the best fiber length-to-coarseness ratios--a key predictor of reinforcement potential. For paper and tissue producers LL19 Prime’s very low coarseness to length ratio combined with very high fiber strength proves very beneficial.
• LL19 PRIME has very high fiber strength. Tear strength values at any given tensile breaking length are among the highest of all market pulps.
• LL19 PRIME has a very high Tensile Energy Absorption (TEA) –Paper made from pulps with a high TEA is capable of handling repeated snaps and violent changes in tension during multiple converting operations. **
• LL19 PRIME is capable of high tensile strengths at higher freeness and bulk than the average NBSK. It also exhibits very high tear strength properties and high tensile strengths coupled with high fold properties and exhibits a good balance of tear and tensile strength properties.
• LL19 PRIME’s low fines level are preferred to maximize long-fiber content, minimize chemical usage, lower drainage resistance, increase retention and reduce product dusting/linting. **
• LL19 PRIME’s high bulk value is better for tissue producers because it indicates there is less fiber collapse and this will lead to thicker tissue. Its high stretch value is better because paper web runnability is positively correlated with it. “NBSK pulps with a low Scott Bond value are more desirable because the paper webs produced are likely to delaminate more easily when creped and produce bulkier, softer tissue.” **
• LL19 PRIME’s low coarseness and higher collapse, as well as very efficient low coarseness to fiber length ratio and high fiber strength allows for higher levels of lower cost hardwood pulps to be used, which in turn provides better formation and sheet structure, as well as substantial costs savings
• Low levels of LL19 PRIME provide the needed reinforcement required when making papers from recycled (pre- and post-consumer) and de-inked pulps. **

Uses/Applications

• LL19 PRIME is well suited to Toweling, Coated paper, Light-Weight-Coated Paper, Ultra-Light-Weight-Coated Paper, Supercalandered Papers, and as a premium reinforcing fiber for Coated Groundwood Papers. With all types of mechanical fiber printing papers, such as SC, LWC, and ULWC grades, LL19 Prime provides the most efficient reinforcement for machine printing and converting runnability.
• • LL19 PRIME performs very well in a variety of Graphic Arts grades such as Coated Offset, Publication Grades, Printing & Writing, and Text and Cover Papers. It excels in lower basis weight specialty grades, including Lightweight Opaque’s, Bible and Hymnal Papers, Tape Base and Packaging Papers. All these paper grades require a well-fibrillated pulp that develops high tensile strength.
• High viscosity LL19 PRIME is widely used in combination with flax in the manufacture of cigarette papers.
• LL19 PRIME’s high tensile strength and porosity are required for High performance extensible (HPE) sack Kraft papers. These properties allow HPE converters to reduce the number of plies in multiwall sacks where strength is important (i.e. Cement sacks).
• For Mechanical Printing Papers, Coated and Uncoated Freesheet Papers, LL19 PRIME’s low coarseness to length ratio and high fiber strength with high fracture toughness make it one of the best pulps. In addition, its high bulk value indicates that there is less fiber collapse and this leads to thicker, stiffer printing papers.
• LL19 PRIME’s high scattering coefficient helps produce more opaque printing papers.
• Coated Freesheet paper products typically incorporate NBSK as a source of tensile strength, so the pulp is generally refined to a higher degree to develop high tensile strengths. LL19 PRIME’s high wet zero-span test results are desirable because it has significantly fewer weak links in the fiber network and can sustain higher levels of refining to obtain maximum strength.
• LL19 PRIME’s high bulk and bending stiffness is a key to its ability to maintain sheet caliper and produce sufficient sheet stiffness. This aids both coated and uncoated free sheet papers, as they must maintain their integrity as they pull away from the tacky ink on the offset press rolls.
• Due to LL19’s high Black spruce content, leading producers of Premium Facial Tissue have found it to be ideally suited to providing the wet tensile strength, good crumple and smooth/level surface required in their relatively low grammage products. Pulps with high wet zero-span test results are most desirable because they have fewer weak links in their fiber network.

Certifications

• LL19 is made to comply with the FDA requirements of 21 CFR 186.1673 which deals with Pulp used or intended for use as a constituent of food packaging.
• Ll19 is made to comply with 21 CFR 186 and with 186.1 Substances added indirectly to human food affirmed as generally recognized as safe (GRAS).
• LL19 NBSK Pulp manufactured by Terrace Bay Pulp Inc. is made to comply with and can be used as an ingredient in:
  • 176.170 Components of paper and paperboard in contact with aqueous and fatty foods.
  • 176.180 Components of paper and paperboard in contact with dry food.

Heavy Metal Compliance:

• CONEG
• HASBRO
• Toy Safety

Additional Specifications

• Library of Congress Specifications

Forest Certification and Sustainable Forest Management

Terrace Bay Pulp Inc. has achieved forest certification to the SFI standard and has achieved internationally recognized SFI Chain of Custody certification.

Terrace Bay Pulp Inc. self declares that it will not knowingly source wood or wood fiber from any unacceptable or controversial sources, which include:

a) Illegally harvested wood
b) Wood harvested in violation of traditional and civil rights
c) Wood harvested in forests where high conservation values are threatened by management activities
d) Wood harvested in forests being converted to plantations or non-forest use
e) Wood from forests in which genetically modified trees are planted

Sustainable Forestry Initiative (SFI)

Forest certification through sustainable forestry is a cornerstone of responsible forest management. Sustainable forestry is the practice of land stewardship that integrates harvesting and reforestation of trees while preserving soil, air and water quality, wildlife and plant habitat as well as aesthetics for today and into the future. •• Sustainable Forestry is based on the concept of meeting the needs of the present without compromising the anticipated needs of future generations. This is accomplished by practicing a land stewardship ethic that integrates the reforestation, managing, growing, nurturing and harvesting of trees for useful products with the conservation of soil, air and water quality, biological diversity, wildlife and aquatic habitat, recreation, and aesthetics. ••

The SFI® program is a comprehensive system of principles, objectives and performance measures developed by foresters, conservationists and scientists that, when put into practice, ensure forests are being managed in a sustainable manner. ••

** Quotes and Marketing information used in this document have been provided courtesy of “World of Market Pulp, LLC.”

•• “Ontario SFI Implementation Committee” Retrieved Jan.23, 2008, from SFI Ontario Website. Website: http://www.sfiontario.ca