prefazione

ISO (Organizzazione internazionale per la standardizzazione) è un'alleanza globale di organismi di normalizzazione nazionali (Organismi membri dell'ISO). Lo sviluppo di standard internazionali viene solitamente effettuato attraverso i comitati tecnici ISO. Ciascuna istituzione associata interessata ad una materia sulla quale è stato costituito un comitato tecnico ha il diritto di essere rappresentata in tale comitato. In questo lavoro sono coinvolte anche organizzazioni internazionali governative e non governative che collaborano con l'ISO. L'ISO lavora a stretto contatto con la Commissione Elettrotecnica Internazionale (CEI) su tutte le questioni di standardizzazione elettrotecnica.

Le procedure utilizzate per la realizzazione del presente documento e quelle utilizzate per la successiva manutenzione sono descritte nella Part 1 della Direttiva ISO/IEC. In particolare, notare i diversi standard di approvazione richiesti per i diversi tipi di documenti ISO. Il presente documento è stato redatto in conformità alle regole redazionali di cui alla Part 2 della Direttiva ISO/IEC (vedere iso.org/directives).

Si tenga presente che alcuni contenuti del presente documento potrebbero essere soggetti a diritti di brevetto. L'ISO non è responsabile dell'identificazione di alcuni o tutti questi brevetti. I dettagli di eventuali diritti di brevetto identificati durante la preparazione del documento saranno contenuti nell'introduzione e/o nell'elenco delle rivendicazioni di brevetto ricevute dall'ISO (vedere iso.org/patents).

Tutti i nomi commerciali utilizzati nel presente documento sono informazioni fornite per comodità dell'utente e non costituiscono un'approvazione.

Volontario, norme correlate e valutazione della conformità relative alle specifiche ISO ed esprimono il significato della terminologia nonché degli ostacoli tecnici ISO pertinenti al commercio (TBT) aderire al principio dell’organizzazione mondiale del commercio (OMC) informazione, fare riferimento al seguente URL:iso.org/iso/foreword.html.

This document has been prepared by the Technical Committee of the European Committee for Standardisation (CEN), CEN/TC 172 (Polpa, carta e cartone), in collaborazione con il Comitato Tecnico ISO/TC 6 (carta, tavola e polpa) e sottocommissione SC 2 (Metodi di prova e specifiche di qualità per carta e cartone). Comply with ISO and CEN technical cooperation agreement (Accordo di Vienna).

The third edition cancelled and replaced the technically revised second edition (ISO 12625-1:201). The main changes from the previous edition are as follows:

– Change the number of terms to those directly related to the organization;

— The alphabetical index was reorganized by merging and adding “term groups”;

– Edit updates.

Un elenco di tutte le parti nell'ISO 12625 serie possono essere trovate sul sito web ISO.

Any feedback or questions about this document should be directed to the user’s national standards body. A complete list of these institutions can be found at iso.org/members.html.

introdurre
This document defines defining terms for the physical properties of tissue paper manufactured using wrinkling or non-wrinkling techniques and includes products made using a combination of these tissue paper manufacturing processes.

Paper towel products are an important and growing market for single-use disposable sanitary and industrial products. The current range of familiar products includes toilet paper, facial tissues, kitchen/household towels, hand towels, tovaglioli, MATS, industrial wipes, other absorbent tissues and lotion treatments.

Tissue paper manufacturing techniques have evolved and deviated from “normal” paper techniques, so there is a need for a new vocabulary.

The purpose of this document is to get household paper manufacturers, tissue processors and tissue customers to agree on various tissue manufacturing terms and to facilitate the harmonization of testing methods. Each of the terms listed is briefly defined and illustrated if found useful. In writing this document, English was chosen as the original language. Then it was said that some expressions cannot be translated into another language. For these cases, English expressions are used.

1 allineare
This document establishes general principles for the use of terminology in the entire field of work for tissue and household paper products.

It allows the use of generic terms in industry and business.

It is specified that ISO 15755 is suitable for the detection of impurities and dents in tissue paper and tissue products.

ISO 287 applies to the determination of moisture content in tissue and household paper products.

2 referenze normative
There is no normative reference in this document.

3 Termini e definizioni
Ai fini del presente documento, si applicano i seguenti termini e definizioni.

3.1 Water Absorption

The ability of tissue paper (3.58) and/or tissue products (3.59) to absorb liquids

3.2 Absorption

3.2.1 Absorption capacity

The amount of liquid absorbed per unit mass of the sample under test

Nota 1: Water absorption capacity is defined in ISO 12625-8.

3.2.2 Absorption rate

The mass of the liquid absorbed by the sample per unit time is determined by dividing the total mass of the liquid absorbed during a given period of time by the duration of the period

3.2.3 Absorption Time

The time required for complete wetting of the sample

[Fonte: ISO 12625-8:201, 3.1]

3.3 Accelerated Aging

A procedure that quickly predicts changes in the characteristics of tissue paper (3.58) or tissue products (3.59) that occur over a longer period of time under normal conditions

Nota 1 This is particularly the case for wet strength tissue paper or tissue products whose wet resistance increases over time. An accelerated aging procedure for determining wet strength is specified in ISO 12625-5.

ISO 12625-1-2019 Carta velina e prodotti in tessuto – Parte 1 Vocabolario

3.4 Densità di imballaggio apparente

The mass of tissue paper (3.58) or tissue products (3.59) per unit volume is calculated from its gram weight (3.28) and expanded thickness (3.10)

Nota 1: It is determined by dividing the gram weight of tissue paper or tissue product by the thickness determined on the tissue.

[Fonte: ISO 12625-3:214, 3.4]

3.5 Paper Towel products for outdoor use

AFH Tissue products

Paper towel products for institutional and industrial markets (3.59)

Esempio: Tissue products used in hospitals, restaurants, hotels, offices.

3.6 Base Paper

A single sheet of tissue paper produced as a semi-finished product and intended to be converted into a finished product

3.7 Substrate forming

Wet-formed coils between one or two consecutive wires or between one wire and felt produce endless sheets of paper with a gram weight (3.28), usually between 10 g/m2 and 50 g/m2

3.8 Brightness

3.8.1D65 brightness

The intrinsic radiance (reflectance) factor measured using a reflectoscope with the properties described in ISO 2469, equipped with a filter or corresponding function with an effective wavelength of 457nm and a half-peak bandwidth of 44nm, and adjusted so that the UV content of the radiation incident on the sample under test corresponds to the UV content of the CIE standard light source D65

[Fonte: ISO 2470-2:2008, 3.4, Modified — the entry symbols R457, D65 and note 1 were deleted.

3.8.2C brightness

Luminosità ISO

The inherent diffuse radiation (reflectance) factor measured using a reflectoscope with the properties described in ISO 2469, equipped with a filter or corresponding function with an effective wavelength of 457nm and a half-bandwidth of 44nm, and adjusted so that the UV content of the irradiation incident on the sample under test corresponds to the UV content of the CIE source C

[Fonte: ISO 2470-1:2016, 3.4, Modified – Added the preferred term “C brightness” and deleted the entry symbol R457 and note 1.

3.9 Massa

Reciprocal of apparent packing density (3.4)

3.10 Spessore di espansione

The thickness of a single sheet of tissue paper (3.58) or of a tissue product (3.59), calcolato dallo spessore di più fogli di carta sovrapposti, measured at the static load applied

[Fonte: ISO 12625-3:2014, 3.3]

3.11 Calender

Mechanical treatment of a substrate passing through the clamp between two smooth cylinders with the aim of improving the smoothness or surface softness of tissue paper (3.58) or household paper (3.59)

Nota 1: This operation is performed by calender. Inoltre, the process allows some control over the thickness of tissue paper or tissue paper products.

3.12 Cellulose filler

A corrugated mesh or sheet of open structure, made of cellulose fibers (mainly chemical pulp) and consisting of one or more layers of lightweight paper

Nota 1: Open formation is obtained when paper is produced at low base weight and high tensile (usually over 35%).

Nota 2: Very low gram weight soft crepe paper, usually used in bundles or MATS containing several sheets of paper.

[Fonte: ISO 4046-4:2016, 4.37, Modified — (mainly chemical pulp) aggiunto, entry Notes 1 and entry Notes 2]

3.13 Cloth-like touch

Properties of tissue paper (3.58) or tissue products (3.59) that give it a similar feel to woven cloth materials

3.14 Colore

3.14.1 International laboratory color space

Three-dimensional approximate uniform color space, by drawing rectangular coordinates L*, a*, b to produce *

Nota 1: The quantity L* is a measure of the brightness of the test piece, where L* = 0 corresponds to black and L* = 100 is defined by a perfect reflection diffuser. Visually, the quantities a* and b* represent the red and green axes and yellow and blue axes in the color space, rispettivamente, making

— +a* is a measure of the redness of the test piece,

– −a* is a measure of the greenness of the test item.

— +b* is a measure of the degree of yellowing of the test item, E

– −b* is a measure of the blueness of the test component.

If both a* and b* are zero, the specimen is gray.

[Fonte: ISO 5631-3:2015, 3.6, modificata — Nota di entrata 1 aggiunto]

3.14.2CIELAB Color (D65/10°)

The L*, a* and b* values of the sample were evaluated according to the CIELAB 1976 system, according to the CIE 1964 (10°) standard colorimetric observer and the CIE standard light source D65

Nota 1: See ISO 12625-7 for more information.

[Fonte: ISO/TR 10688:2015, 2.5.2, Modified — Delete preferred term “(L*, a*, b*)”, preferred term CIELAB color (D65/10°), and add entry Note 1]

3.14.3CIELAB Color (C/2°)

The L*, a*, and b* values of the sample were evaluated according to the CIELAB 1976 system, according to the CIE 1931 (2°) standard colorimetric observer and CIE light Source C

Nota 1: See ISO 12625-15 for more information.

[Fonte: ISO/TR 10688:2015, 2.5.1, Modified — Delete preferred terms “(L*, a*, b*)”, preferred terms CIELAB Color (C/2°) and Note 1]

Solo la sezione informativa standard è pubblica. Per vedere il contenuto completo, è necessario acquistare lo standard attraverso i canali ufficiali.