SPC Glossary
| A B C D E F G H I J KL M N O P Q R S T U V W X Y Z |
Absorb |
The process of liquids being attracted into the pores or gaps in a fabric. |
| Adsorb | The process of liquids being attracted to the surface of the fabric. |
Attribute |
A physical visual description that has no dimensions and no units, e.g. color, ropy, dusty, weak, strong, stiff, soft, rough. |
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Bar Code |
A label with a series of vertical lines of varying thickness' which the computer can interpret and record. One is attached to every package to identify when it was produced and allow tracking. |
| Basis Weight | A unit of measurement denoting the weight per area of SPC nonwoven sorbents as grams / square meter (gsm). 1 osy = 34 gsm |
| Bath Absorbency 24-hr Test | Long term water absorbency potential of a hydrophobic "Oil Only" sorbent. |
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C of A |
Certificate of Analysis. Document provided by "suppliers" of raw materials to "customer" with results of their in-house testing. |
Caliper |
Thickness or Loft |
| CAS # | Chemical Abstract Service Number. A number given to every chemical for identification. |
| Control Chart Calculation Worksheet | The form on the back of the Control Chart form where measurements and sample ID's are recorded, and Averages and Ranges are calculated before being posted to the Control Chart. |
Control Charts |
Graphical pictures and a record of a "process", which are used to monitor trends and events, which enable improvements, or signal corrective actions if the process is out of control and before bad product is produced. Consistency is a key! |
| Conversion Factors | Equations that represent a known value in terms of a second unknown value |
| Coverstock | Thin, low basis weight sorbent that provides extra strength to melt blown and enhances aesthetics. |
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D
Defect Ticket |
Ticket issued by the supervisor stating how much waste was produced and for what reason. Handed in with Production Report, copies stapled to the Control Charts. |
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Elongation |
A percentage measure of the initial length of a fabric before breaking. |
| ETS | Electro-Tech Systems, Inc. Independent laboratory that performs static decay measurements. |
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| Feedback | Term used in industry to denote the transfer of information about a product from the "customer" to the "supplier". |
| Flow Funnel Test | Determines the flow characteristics of Polypropylene resin. |
| Frequency of Testing | The recommended minimum number of tests to be run per shift. This may be found on the the SORB spec or on a posted chart. |
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| g / m2(gsm) | Grams per square meter. Units of Basis Weight |
| g L / g S | Grams of Liquid Absorbed per grams of Sorbent used. Units of Absorption. |
| Gaylord | Large heavy walled cardboard container normally sitting on a pallet. Used to transport and store resin. Typically 450kg. |
| GPS | General Product Specification |
| Grade | The production identification number assigned by scheduling that denote the style of base product to be produced on the meltblown operation. |
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| Hydrophilic | Absorbs water |
| Hydrophobic | Does not absorb water |
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L
| Labeling Manual | A manual created for specifications and placement of labels |
| LCL | Lower Control Limit |
LSL |
Lower Specification Limit |
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| Master Roll | A roll created for in house or per customer order that is then later converted to desired length and perforation specifications. |
| MB | Meltblown |
| Measurement | Any physical dimension that is described by units, e.g. pounds, inches, grams, tons, square meters, gallons, etc. |
| MFR | Melt Flow Rate - a physical property denoting the rheology / viscosity of a polymer like polypropylene, when a specified volume of polypropylene it is heated to a specified temperature, then forced through a specified size orifice, at a specified load or pressure. The time (seconds) is recorded for the length of the test, and the reported units of measurement are grams / 10-minutes when calculated from a given formula. |
| micron | One thousandth of a millimeter |
| mils | One thousandth of an inch. Units of Caliper. |
| Mission Statement | Documented SPC statement of How & Why we do business. |
MSDS |
Material Safety Data Sheet |
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| n | Number of samples tested |
n/a |
"not available", or "not applicable" |
Nonwoven |
An assembly of textile fibers held together by mechanical interlocking in a random web or mat, by fusing the fibers, or by bonding with a cementing medium. |
| NP | Needlepunch |
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| OAC | Oil Absorbency Capacity |
| Oleophilic | Absorbs oil based products |
| Order Processing Map | Flow Chart indicating individual steps with in the "process" executing customer orders. |
osy |
Ounces per square yard. Units of Basis Weight. 1 osy = 34 gsm |
Out-of-Control. |
A document with examples of charts that show situations of "out-of-control" data patterns and reasons why. Also included with these examples are actions that can be taken or ignored as data are being charted and interpreted. |
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| Packaging Manual | A manual created for specifications of packages of all products to insure correct packaging. |
| Picking Ticket | Document provided to shipping indicating what items, what quantities to prepare and ship to the customer to satisfy the orders. |
| Poly-propylene | -(CH3)-n ; a thermoplastic polyolefin used to make SPC meltblown sorbents, needlepunch nonwovens, spunbond nonwovens. |
| Process | A system of equipment, materials, methods, people, environment. |
| Process Map | A side-view elevation drawing showing the "recommended" thread-up and/or layout of the process. |
| Product | Output from the "Process". |
Production Order |
A form document from Production Scheduling that includes not only which SORB spec is to be usefor the Grade to be produced, but also all the related instructions and details for completing a specific production run. |
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Q
| Q.A. | Quality Assurance |
| Q.C. | Quality Control |
| QA Inventory Report | A daily report on inventory quality |
| QA Program | SPC's documented QA statement of "test & inspection" objectives for controlling PROCESSES and PRODUCTS. |
QD&A Report |
Report generated to denote off quality products and corrective action needed to prevent this form reoccurring. |
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R
| R.A. | Return Authorization |
| Range | Highest value minus the lowest value |
| RCST | Rising Column Strike Through |
| Recipe | Process Condition guideline specifications used setting up process conditions at the start of running a grade. |
Rope |
Undesirable defect on web made of long stringy |
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| s | Standard deviation |
| SB | Spunbond |
| SGS Lab | An outside test lab used by SPC for independent physical property testing. |
| Shrink Wrap | Form of packaging. A shrinkable plastic bag is placed over the product then hot air is applied to shrink the bag to a tight fit. |
| Slitting Tolerances | The +/- variation in the process of slitting. Typically, +/- 0.5 inches |
| SOP | Standard Operating Procedure |
| SORB Spec | Process & Product "Set-up" Specification |
| SORB Spec Index | A list of all active "SORB specs" with the corresponding Recipes, Basis Weights (in ascending order), Colors, and related attributes, so as to confirm which "spec" to be used for the Grade being produced. |
| SPCTM | Sorbent Product Company Test Methods |
| Special Cause | A note written on the control chart to explain why a point is out of spec. Corrective action must be taken after a special cause is recorded. |
| Standard Sample | A reference piece of product that is established and maintained to ensure that future runs of this same product are the same, e.g. color, hand feel, texture, etc. |
| Static Decay Test | Under requirements for NFPA99 compliance, samples must dissipate a +/- 5 kV charge under 0.5 seconds at 50% relative humidity. |
Static Resistance Test |
A test to determine if a nonwoven MB web can dissipate a static charge. Measure the resistance between two electrodes, in Ohms/square, that must be 1011 or below for static resistant. |
| Stitch-bonding | A bonding technique for nonwovens in which the fibers are connected by a chain stitch. The bonding is accomplished by using fibers of the web itself to form the stitches. |
| Stretch Wrap | Clean poly film that is used in shipping to protect material from dirt and damage. |
| Surface Tension | Surface tension is a measure of the surface free energy of a liquid and is defined as the force acting along the surface of a liquid at right angles to any line 1 cm in length. |
| Surfactant | Abbreviated term for "surface active ingredient", a chemical that when added to our polypropylene sorbents will change the surface tension of the sorbent fibers and allow the sorbent to absorb water, water based, and water soluble liquids. (e.g., UXT, MRO, UN+) |
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T
t |
Target |
Techmer S.R. Labs |
Independent laboratory that performs static decay measurements. |
| Tensile | A measure of the breaking load of a nonwoven fabric. |
Test Cross Reference |
A cross reference of SPC Test Methods with recognized Industrial Test Methods, e.g. ASTM, NFPA, INDA. |
| Tolerance | The +/- variation of the product capability of the process. |
| Trap Tear | A measure of the force required to continue or propagate a tear started previously in a nonwoven fabric, using the trapezoidal method. |
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U
UCL |
Upper Control Limit |
Ultrasonic Bonding |
A bonding technique in which electrical energy is converted to mechanical energy which in our case is applied to bond design areas. Mechanical energy at bond sites excites the molecules in the polymer causing the polymer to heat/bond at those points. |
| Units | A precisely specified quantity in terms of which the magnitudes of other quantities of the same kind can be stated. |
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Upper Range Limit |
| USL | Upper Specification Limit |
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| WAC | Water Absorbency Capacity |
| WIP | Work In Process(Progress) |
Work Order |
Manufacturing and converting paper work with detailed production information. (Customer, Grade, Sorb Number, Quantity, Dimensions, Packaging, and any other special instructions) |
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X - Bar |
Average |
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Copyright 2010 Brady Worldwide, Inc.