CN1293728A - Paper structure having decorative pattern and method for making - Google Patents

Abstract

A paper web and method of making the paper web are disclosed. The paper web has a background portion and a non-embossed decorative pattern. The decorative pattern has at least one high basis weight region having a basis weight greater than the average basis weight of the surrounding background portion. The decorative pattern can include a number of discrete, decorative indicia. Each decorative indicia can be separated from adjacent decorative indicia by the background portion.

Description

Paper structure and manufacture method thereof with decorative pattern

The present invention and the following mutual reference of U.S. Patent application with commonly-assigned us.

March 31 nineteen ninety-five, the U.S. Patent application of " making the method and apparatus of cellulosic fibrous structure and the cellulosic fibrous structure of producing like this " that submit to people's such as Trokhan name, by name by selectable obstruction draining.This patent application is that the series number of submitting on May 24th, 1993 is the continuation of the application of No.08/066828; And the latter is that the series number of submitting on June 28th, 1991 is the continuation of No.07/722792 application.

On February 15th, 1996, " cellulosic fibrous structure with discrete areas of the fiber that has arranged radially is made the device and the manufacture method of this structure " that submit to people's such as Trokhan name, by name, series number is 08/601910 U.S. Patent application.This patent application be submitted on December 6th, 1993, series number is the continuation of 08/163498 application; And the latter is that submission on July 29th, 1992, series number are the continuation of 07/922436 application.

On September 23rd, 1996, " have the different trizonal at least cellulosic fibrous structure of intensity property, make the device of this cellulosic fibrous structure and make the method for this cellulosic fibrous structure " that submit to people such as Phan name, by name, series number is 08/710822 U.S. Patent application.This patent application is that submission on March 1st, 1996, series number are the continuation of the application of No.08/613797; And No.08/613797 application be that submit to February 2 nineteen ninety-five, series number is the continuation of the application of No.08/382551.No.08/382551 application is that on July 28th, 1993 submitted to, series number is the division of No.07/071834 application; And No.07/071834 application be that on June 28th, 1991 submitted to, series number is the continuation of No.07/724551 application.

On November 14th, 1996, that submit to the name of Phan, that be called " having thin continuous mesh-like area and a paper web a plurality of dispersions on the plane in continuous net-shaped zone, thicker zone ", series number is 08/748871 U.S. Patent application.

On February 21st, 1997, that submit to Phan and Trokhan name, that be called " having at least three paper structures that comprise the zone of the decorative indicia of being made up of low quantification area ", series number is 08/803695 U.S. Patent application.

It is for reference that present patent application has been introduced following patent: No. 5534326, United States Patent (USP) authorizing people such as Trokhan on July 9th, 1996; Authorized people's United States Patent (USP)s such as Trokhan on September 14th, 1993 No. 5245025; Authorized people's United States Patent (USP)s such as Phan on January 11st, 1994 No. 5277261; " having thin continuous net-shaped zone and the paper web in the zone a plurality of dispersions in continuous net-shaped area planar, thicker " that on November 14th, 1996 submitted to the name of Phan, by name, series number is 08/748871 U.S. Patent application; " having at least three paper structures that comprise the zone of the decorative indicia of forming by quantitative little zone " that on February 21st, 1997 submitted to the name of Phan and Trokhan, by name, series number is 08/803695 U.S. Patent application.

Invention field

The present invention relates to have the paper structure of decorative pattern, more particularly, relate to and a kind ofly having by paper structure predetermined, nonrandom mode zone that dispose, different basis weights.

Background technology

Cellulosic fibrous structure such as paper web one class is well-known technically.This paper web can be used for facial tissue, toilet paper, paper handkerchief, bib that child uses and napkin.Above-mentioned these paper all are often to use in modern society.These goods will be finished the task of their expections and be accepted widely, and then fibre structure should have suitable character aspect hygroscopicity, bulk density, intensity and flexibility.TENSILE STRENGTH wet and that do is measuring of the fibre structure ability that in use keeps its actual integrality.Hygroscopicity is the character that fibre structure is preserved the fluid that is in contact with it.When estimating a kind of above-mentioned consumer goods, the absolute magnitude of the fluid that fibre structure absorbs and the speed that fibre structure absorbs this fluid are all essential to be considered.In addition, this paper web also can be used in the disposable disposable absorbent article such as sanitary napkin and diaper one class.

The paper with two kinds of different basis weights was once attempted to make in this area, and fiber is rearranged.The example of this respect comprises: No. 795719, United States Patent (USP) authorizing Motz on July 25th, 1905; Authorized No. 3025585, the United States Patent (USP) of Griswold on March 20th, 1962; Authorized people's such as Greiner No. 3034180, United States Patent (USP) on May 15th, 1962; Authorized people's such as Heller No. 3159530, United States Patent (USP) on December 1st, 1964; Authorized No. 3549742, the United States Patent (USP) of Benz on December 22nd, 1970; With No. 3322617, the United States Patent (USP) of authorizing Osborne on May 30th, 1967.

In addition, it would also be desirable to provide some and both had certain bulk density, have flexible thin paper products again.Described in No. 4191609, the United States Patent (USP) of authorizing Trokhan on March 4th, 1980, staggered compressional zone and non-compressional zone are set, can improve the bulk density and the flexibility of paper by two sides at paper.Here it is for reference to introduce this patent.

Known have severally by improved with holes the method for making this fibre structure is provided, and wherein foremost a kind of method is authorized on April 30th, 1985 in people's such as Johnson No. 4514345, the United States Patent (USP) and is described.Here it is for reference to introduce this patent.

The method that another kind makes thin paper products liked by the consumer is the structure of dry this paper and make this thin paper products have bigger bulk density, TENSILE STRENGTH and rupture strength.The example of making paper structure in this way is described in authorizing No. 4637859, the United States Patent (USP) of Trokhan on January 20th, 1987.Here it is for reference to introduce this patent.United States Patent (USP) illustrates many dispersions, the dome-shaped ledge that is dispersed on the whole continuous WEB for No. 4637859, and it is for reference to introduce this patent here.Continuous WEB can provide intensity, and thicker dome then can provide flexibility and hygroscopicity.

A shortcoming of the papermaking process described in No. 4637859, the United States Patent (USP) is, dry this paper web will consume more energy and relatively more expensive, generally also to use Tad equipment, in addition, papermaking process described in No. 4637859, the United States Patent (USP), this paper web is carried out dry speed at last on the Yankee drying cylinder restricted.This restriction is because before paper web was delivered to the Yankee drum, the decorative pattern that forms on this paper web caused at least in part.Particularly, the drying of dome on the surface of tub wheel of Yankee drying machine of the dispersion described in No. 4637859, the United States Patent (USP), the continuous net-shaped thing described in No. 4637859, this United States Patent (USP) is effectively not dry.Therefore, for given consistency level and quantitative, the operating rate of Yankee drying cylinder is restricted.

By utilize one or more press felt squeezing paper web in nip, speed that can be higher is made traditional thin paper.Traditional pressed paper after drying, just can impress out decorative pattern on paper web, and increases the macroscopic thickness of paper web.For example, all be usually after the thin paper products drying, on this thin paper products, form the embossing decorative pattern.

Yet embossing process generally all is under the condition of other character of sacrificing paper structure, makes paper structure have aesthetic appearance.Particularly, the embossing meeting destroys the key between the fiber in the cellulosic structure on the paper web of drying.This destruction be because when the fiber thin pulp at dry initial stage, these keys just form and formalized.After the paper structure drying, make the normal direction motion of fiber by embossing on the paper structure plane, can destroy the key between fiber and the fiber.The fracture of key can cause dry paper web TENSILE STRENGTH to reduce.In addition, general embossing is that dry paper web is carried out after wrinkling.Embossing after wrinkling can destroy the wrinkle decorative pattern that forms, for example on this paper web, on the some parts of paper web, because the compacting or the wrinkling decorative pattern that stretched, embossing can make wrinkling decorative pattern disappear.Because wrinkling decorative pattern can improve the flexibility and the flexibility of dry paper web, therefore this result is undesirable.

The open WO 96/35018 of PCT has announced a kind of paper with decorative pattern, this decorative pattern regional corresponding with corresponding to quantitative less translucent profile.A problem of this tissue web is that the consumer can think that the tissue web that has translucent area is bad.For example, the consumer may think that this quantitatively less zone is fragile and/or not have flexibility.In addition, quantitatively less zone can reduce the intensity of paper too much, makes this paper can not finish the task of its expection.

The present invention's general introduction

Therefore, hope can overcome these shortcomings, particularly overcomes these shortcomings relevant with individual thin layer paper.Specifically, be desirable to provide a kind of decorative pattern that has, can not sacrifice paper web intensity, hygroscopicity and flexibility characteristic, the non-air impingement drying of paper web again.It would also be desirable to provide a kind of paper web with non-embossed decorative decorative pattern, do not need translucent area, this paper web has the multizone background; It would additionally be desirable to provide a kind ofly on paper common, the non-air impingement drying, do not need paper machine is done very big repacking, can form the method for this paper web.

The invention provides a kind of have first surface and with the paper web of its opposing second surface, this paper web has the decorative pattern of background parts and non-embossing.Decorative pattern comprises at least one, and it is quantitatively quantitatively regional than the quantitative big height of background parts on every side.

Decorative pattern can comprise one or more low quantitatively zones.Background parts around the quantitative ratio in low quantitative zone on average quantitatively little; And low quantitative zone basically with overseas the connecing of one or more high quantification area.At least some low quantitatively zones are configurable in background parts and high quantitatively between the zone; And at least some low quantitative zones separate adjacent high quantitatively zone.By basically with overseas the connecing of one or more high quantification area, low quantitative zone can make the profile of seeing of decorative indicia more apparent outstanding.

Terminology used here " decorative pattern " is meant to be preferably in and begins to form in the process of paper web, the identifiable shape or a plurality of shape that form on this paper web.These shapes include, but are not limited to: the shape of flower, animals shaped, geometry etc.

Background parts preferably include paper web first surface surface area at least 50%.In one embodiment, background parts comprise paper web first surface surface area at least 70%.

In one embodiment, decorative pattern comprises on every square feet of paper web and is less than about 500 decorative indicias.Decorative pattern comprises the decorative indicia of every square feet of about 1～300 dispersion of paper web; It better is the decorative indicia of every square feet of about 1～200 dispersion of paper web; The decorative indicia of every square feet of about 10～75 dispersions of paper web preferably.

Background parts on average quantitatively be approximately 12g/m at least ², in one embodiment, background parts on average quantitatively be approximately 15g/m at least ²Decorative pattern comprises at least one, and it quantitatively is approximately the 1.25 times average quantitative high quantitatively zone of background parts on every side at least.The high quantitatively zone of decorative pattern preferably includes the surface area less than the first surface of this paper web of 30%.

Best, the opacity of background parts is approximately 2.8 at least, and better is to be approximately 3.0 at least.Opacity can be measured with following method.Best, the opacity of the part of decorative pattern is greater than the opacity of background parts at least.

In one embodiment, total TENSILE STRENGTH of paper web is approximately 250 gram/inches at least, more preferably is approximately 400 gram/inches at least; Elongation in machine direction is approximately 8% at least, is approximately 4% at least in the elongation of the horizontal direction of machine movement, preferably is approximately 6% at least.The rupture strength of the drying of paper web is approximately 75 grams at least, preferably is approximately 120 grams at least.In one embodiment, rupture strength is approximately 0.3 at least with the ratio of total TENSILE STRENGTH.This paper web that has decorative pattern has the advantage of aesthetic aspect, and can not sacrifice intensity and elongation property.Total TENSILE STRENGTH, elongation and rupture strength can be measured with the method for the following stated.

Best, background parts comprise at least two by the configuration of nonrandom repetitive mode, in character, have the zone of a different in kind at least each other such as quantitative, density or fibre composition one class.In one embodiment, background parts comprises at least two its zones that quantitatively differ from one another.This many quantitatively background parts can improve the elongation property of paper web, and increase the ratio of rupture strength and total TENSILE STRENGTH.

Have background parts and have at least one high quantitatively two or more paper web of the decorative pattern in zone and can link together, form the paper products of a multilayer.

The present invention also provides a kind of to have background parts and comprises at least one high quantitatively manufacture method of the paper web of the decorative pattern in zone.This method comprises the following steps: to provide many cellulose fibres that are suspended in liquid-carrier (for example in the water); Provide and have liquid and can see through the drip molding zone, that keep fiber; Cellulose fiber peacekeeping liquid-carrier is deposited on the drip molding.This method is further comprising the steps of: the stage at least two whiles is discharged liquid-carrier by this drip molding, formation has the paper web of background parts and decorative pattern, and decorative pattern comprises at least one, and it is quantitatively quantitatively regional than the quantitative big height of background parts on every side.

This method also comprises the following steps: to provide a kind of to be had paper web and adds the paper web supporting arrangement of spending the surface; The paper web that paper web is transferred to the paper web supporting arrangement from drip molding adds to be spent on the surface; Make at least a portion of the paper web of this paper web become closely knit selectively, so that form the continuous net-shaped high-density region and the density regions of a plurality of dispersions.

Brief description of drawings

Though there are claims of pointing out particularly and explicitly calling for the theme of the present invention of protection at the end of this specification, from the explanation of the present invention being carried out below in conjunction with accompanying drawing, will be better understood the present invention.Part identical in the accompanying drawing is represented with identical label.

Fig. 1 is the photo of the part of the paper web done according to one embodiment of present invention;

Fig. 2 is the schematic diagram of paper web shown in Figure 1;

Fig. 3 is the photo of amplification of the paper web of the sort of form shown in Figure 1;

Fig. 4 is the schematic diagram of photo shown in Figure 3;

Fig. 5 is the cross sectional representation of a part of the paper web of the sort of form shown in Figure 4;

Fig. 6 is the photo of a part of the paper web of the sort of form shown in Figure 1, this paper web is shown has a continuous mesh-like area;

Fig. 7 is the schematic diagram of paper web shown in Figure 6;

Fig. 8 is the schematic diagram of paper machine that can be used to the paper web of the sort of form shown in the shop drawings 1～4;

Fig. 9 is the schematic diagram that can be used to make with the paper side of the drip molding of the paper web of the sort of form shown in Fig. 1～4;

Figure 10 is the schematic diagram of the amplifier section of expression drip molding shown in Figure 9;

Figure 11 is bearing in the cross-sectional view of a paper web on the drip molding shown in Figure 9 for expression;

Figure 12 is the plane of paper side of the paper web supporting arrangement of a kind of impression fabric form of expression, and this impression fabric comprises that the woollen blanket layer forms with photopolymer layer that be connected with this woollen blanket layer, dapple, forms a continuous net-shaped paper web stamping surface;

Figure 13 is transferred to the cross sectional representation of the paper web on the paper web supporting arrangement of the sort of form shown in Figure 9 for expression, and the first surface of paper web is consistent with this device, and second surface is essentially the surface of monoplane;

Figure 14 illustrates the schematic diagram that is transferred to the paper web on the Yankee drying cylinder;

Figure 15 is the photo of the part of the paper web made according to one embodiment of present invention;

Figure 16 is the schematic diagram of the paper web of the sort of form shown in Figure 10;

Figure 17 is the photo of the amplification of paper web shown in Figure 15;

Figure 18 is the schematic diagram of the paper web of the sort of form shown in Figure 17;

Figure 19 is the cross sectional representation of the paper web of the sort of shape shown in Figure 15;

Figure 20 is the photo of a part of the paper web of the sort of form shown in Figure 15, this paper web is shown has a continuous mesh-like area;

Figure 21 is the schematic diagram of paper web shown in Figure 20;

Figure 22 is the schematic diagram of paper side of drip molding that can be used to make the paper web of the sort of form shown in Figure 15;

Figure 23 is bearing in the cross-sectional view of a kind of embryonic web on the drip molding of the sort of form shown in Figure 22 for expression;

Figure 24 is the photo of the part of the paper web made according to another embodiment of the invention;

Figure 25 is the schematic diagram of paper web shown in Figure 22;

Figure 26 is the photo of a part of the paper web of the sort of form shown in Figure 24, this paper web is shown has a continuous mesh-like area;

Figure 27 is the schematic diagram of paper web shown in Figure 26;

Figure 28 is the schematic diagram of drip molding that can be used to make the paper web of the sort of form shown in Figure 24.

Detailed description of the present invention

Fig. 1～Fig. 4 illustrates the paper web of making according to one embodiment of present invention 20.Fig. 1 is the photo of this paper web 20.Fig. 2 is the schematic diagram of paper web shown in Figure 1.Fig. 3 is the photo of amplifier section of the paper web of the sort of form shown in Figure 1.Fig. 4 is the schematic diagram of paper web shown in Figure 3.Fig. 5 is the cross-sectional view of the paper web of the sort of form shown in Figure 4 of being got along the 5-5 line of Fig. 4.This paper web is a wet-laying, and can non-embossing and do not have the embossing done basically.

Such as technically known, this paper web 20 can shorten.Shortening can by with paper from a rigid surface, the wrinkling realization from the cylinder preferably.Usually use the Yankee drying cylinder for this reason.Know as technical, the wrinkling doctor blade that utilizes carries out.Wrinkling can carrying out according to authorizing the method described in No. 4919756, United States Patent (USP) Sawdai, that have commonly-assigned us in April 24 in 1992.Here it is for reference to introduce this patent.Another kind of scheme or as additional, shorten No. 4440597, the United States Patent (USP)s people, that have commonly-assigned us such as also can authorizing Wells as April 3 in 1984 described, undertaken by wet little contraction method.Here it is for reference to introduce this patent.In order to illustrate that the gap of form shortening shifts, introduce the WO that announced with people such as Engel name May 9 in 1996 here No. 9613635; No. 5667636, United States Patent (USP) authorizing people such as Engel with September 16 in 1997 is for reference.

Referring to Fig. 1～Fig. 5, paper web 20 has first and second surfaces 22 and 24 respect to one another respectively.This paper web 20 comprises one with the background parts of label 100 expression with the decorative pattern of the non-embossing of label 200 expressions.

As can be seen from Figure 2, background parts 100 can comprise first surface 22 surface area at least 50%.In one embodiment, this background parts 100 comprises at least 70% of surface 22 surface area.

Terminology used here " decorative pattern " is meant preferably and is beginning to form in the paper web process a kind of shape recognized or the multiple shape that form on paper web.Decorative pattern can equally be continuous such as the form of continuous net-shaped shape; Or be discontinuous like that such as disperseing the shape form; Or semi-continuous (for example, such as on a direction of the machine direction or the horizontal direction of machine direction, this paper web 20 is continuous).As following will be explained in more detail, decorative pattern 200 is by in the process that forms paper web, and water is excreted out from paper web selectively, and on paper web, form.

In Fig. 1～4, for the decorative pattern 200 of embossing comprise a plurality of dispersions, decorative indicia 220.In one embodiment, decorative pattern can comprise on every square feet of paper web less than about 500 decorative indicias.Decorative pattern can every square feet paper web comprise the decorative indicia of about 1～300 dispersion; The decorative indicia of every square feet of about 1～200 dispersion of paper web even more preferably; Most preferably, every square feet of about 10～25 decorative indicias of paper web.

The decorative indicia 220 of each dispersion is separated by background parts 100 and adjacent decorative indicia 220.Decorative pattern 200 comprise at least one its quantitatively than around big high quantitatively regional of background parts 100.

In Fig. 3 and Fig. 4, each decorative indicia 220 comprises a plurality of high quantitative regional 230, and they have formed the border of the shape that determines this decorative indicia 220 together.Decorative indicia 220 among Fig. 3 and Fig. 4 comprises many basically by the unit 240 of the borders encirclement of quantitatively regional 230 formation of above-mentioned height.Average quantitatively big than each unit 240 of high quantitatively zone 230 quantitative.Each unit 240 average quantitatively, equal the quantitatively average of background parts 100 substantially.

This paper web 20 can comprise at least three by zone nonrandom, the repetitive mode configuration, and these zones have at least a kind of character inequality in the character that quantitative, density, thickness and fibre composition are formed each other.In Fig. 3 and Fig. 4, background parts 100 comprises a plurality of first background areas 110 and at least one second background area 120.The zone 110 and 120 each other quantitatively be inequality.The zone 110 quantitative than the zone 120 quantitatively little.In Fig. 3 and Fig. 4, zone 110 generally be disperse and surrounded by a continuous mesh-like area 120 basically.

In Fig. 3, each unit 240 comprises a plurality of first modules zone 242 and at least one second unit area 244.The zone 242 and 244 quantitatively differing from each other.The zone 242 quantitative than the zone 244 quantitatively little.In Fig. 3 and Fig. 4, zone 242 generally be disperse and surrounded by continuous net-shaped zone 244 basically.Each unit 240 is surrounded by one or more high quantitative regional 230 basically.

High quantitatively zone 230 quantitatively, measure in the method described in " the high quantitatively measurement in zone " joint below available.Background parts 100 average quantitatively and unit 240 quantitatively average, measure in the method for " average quantitative measurement " described in saving below available.

Generally, these all are " quantitative macroscopic measurements ".Quantitatively-for example zone 110,120,242 and 244 (the quantitative microscopic measurements) in the single zone in background parts 100 and unit 240, the method described in people's such as Trokhan the United States Patent (USP) 5503715 of can authorizing according on April 2nd, 1996 is measured.Here it is for reference to introduce this patent.

Decorative pattern 200 can comprise one or more low quantitatively zones.In Fig. 3 and Fig. 4, decorative indicia 220 comprises low quantitatively zone 290 and 290A.Background parts around the quantitative ratio of low quantitatively zone 290 and 290A on average quantitatively little.Low quantitatively zone 290 and 290A are external with one or more high quantitative regional 230 basically.290 borders that are formed between background parts 100 or the unit 240, low quantitatively zone.Low quantitatively zone forms the contiguous high quantitatively border between the zone.By basically with overseas the connecing of one or more high quantification area, this low quantitatively zone 290 and 290A can show the profile of seeing of decorative indicia more highlightedly.

Fig. 5 is the cross-sectional view in the quantitative different zone of paper web 20.Among Fig. 5, the quantitative different part of paper web is represented with different thickness.The opacity of background parts 100 is approximately 3.0 at least.The opacity of unit 240 is approximately 3.0 at least.The opacity in high quantitatively zone 230 is bigger than the opacity of background parts and unit 240; And the high quantitatively opacity in zone 230 preferably is approximately 4.0 at least.First surface 22 can have can observable superficial makings, and its surface flatness value is at least 900.The ratio of the surface flatness of paper web 20 is approximately 1.2 at least.The ratio of surface flatness and smoothness, the method described in available following " method of testing " joint is measured.

Paper web 20 can be done more closely knitly selectively, so that density changes by mode nonrandom, that repeat.Can make paper web 20 become closely knit selectively by the following method of explanation in more detail.In one embodiment, paper structure comprises a kind of nonrandom, the configuration that repeats in zone that zone that density is higher and density are lower, zone that density is higher and density is lower and high quantitatively zone 230, and at least one in background parts 10 or the unit 240 is overlapping.Specifically, paper structure 20 can comprise the continuous net-shaped zone that density is bigger and be dispersed in a plurality of zones dispersion, that density is less on the bigger continuous net-shaped zone of whole density.

Fig. 6 and Fig. 7 illustrate the surface 24 of the paper structure 20 of the sort of form shown in Figure 1.Referring to Fig. 6 and Fig. 7, that this paper web 20 comprises is continuous net-shaped, density is higher, thin zone 330; With a plurality of dispersions, that density is lower, thicker, be dispersed in the zone 340 on whole continuous net-shaped regional 330.This continuous mesh-like area 330 is for paper web provides intensity, and the lower zone 340 of a plurality of density provides bulk density and hygroscopicity for paper web.

Above-mentioned zone 330 and 340 overlaps on background parts 100, high quantitatively zone 230 and the unit 240.In Fig. 6 and Fig. 7, on the lower zone 340 of density, can see wrinkling bump 345.Generally, the wrinkling number of times in zone 340 lacks than the wrinkling number of times in zone 330.

Can be with papermaking apparatus manufacturing shown in Figure 8 according to paper structure 20 of the present invention.The manufacture method of paper web 20 of the present invention, from provide be suspended in the liquid-carrier many fibers-for example the water slurry of the paper fibre of form of a slurry begins, then, the thin pulp with this paper fibre is deposited on the drip molding 1600 that keeps fiber from flow box 1500.This drip molding 1600 is a form of being with continuously shown in Figure 8.

The thin pulp of this paper fibre is deposited on this drip molding 1600, water is discharged by drip molding 1600 from thin pulp, form a embryonic web 543 by the paper fibre of these drip molding 1600 supportings.This paper fibre thin pulp can comprise that average fiber length is more than or equal to the long fiber of 2.0mm and the average fiber length short fiber less than 2.0mm.For example, should can comprise cork fibrous by long fiber, and should can comprise hardwood fiber by short fiber.

Fig. 9 represents to be suitable for to make according to the paper side of the drip molding 1600 of paper web 20 of the present invention or the schematic diagram of paper side.Figure 10 is the schematic diagram of the amplifier section of expression drip molding shown in Figure 9.Figure 11 is the cross-sectional view of drip molding 1600, and its expression is deposited on the embryonic web 543 on the paper side of this drip molding 1600.

This drip molding 1600 comprises the permeable braiding substrate 1610 of liquid and is arranged on the flow resistance 1650 that weaves in the substrate 1610.Braiding substrate 1610 comprises along the long filament 1612 of machine direction with at the long filament in a lateral direction 1614 of machine movement.This flow resistance 1650 can or be attached in the braiding substrate 1610 by the layer casting (cast) with certain decorative pattern and form.

In Fig. 9, flow resistance 1650 comprises the background flow resistance 1652 and 1654 of dispersion, and they have formed and background parts 100 corresponding first catchments 1656 shown in Fig. 3～4 with above-mentioned braiding substrate 1610.

In Fig. 9, flow resistance 1650 also comprises decorative border flow resistance 1660.This edging circle flow resistance 1660 is divided into several groups, forms and decorative indicia 220 corresponding disperse, decorative patterns.This decorative border flow resistance 1660 forms 230 corresponding second catchments 1666, zone with the quantitative length shown in Fig. 3～4 with above-mentioned braiding substrate 1610.

In Fig. 9, this flow resistance 1650 also comprises unit flow resistance 1672 and 1674, and they have formed and 240 corresponding the 3rd catchments 1676, unit shown in Fig. 3～4 with braiding substrate 1610.

Liquid-carrier (for example water) is discharged by drip molding 1600 simultaneously corresponding to catchment 1656,1666 and 1676.Rate of discharge in the catchment 1666 makes that the fiber in the moisture thin pulp trends towards assembling, thereby forms the quantitative bigger zone 230 shown in Fig. 3 and Fig. 4 than the rate of discharge height in catchment 1656 and 1676 in catchment 1666.

Short fiber is tending towards accumulating in the catchment 1666.As a result, the average fiber length of the paper fibre in the high quantitatively zone 230 of decorative indicia 220 is littler than the average fiber length of the paper fibre in background parts 100 of this paper web peripheral part-for example and unit 240-.

Above-mentioned flow resistance 1650 can be by hardening the photopolymer resin that weaves in the substrate 1610 and forming in this braiding substrate selectively.This flow resistance 1650 generally is a liquid non-permeate.Therefore, second rate of discharge of second drainage is substantially zero.The drip molding 1600 of suitable maintenance fiber can be authorized people's such as Trokhan No. 5503715, United States Patent (USP) and authorized the photopolymer resin described in people's such as Trokhan No. 5534326, the United States Patent (USP) on July 9th, 1996 and make with general on April 2nd, 1996.Here it is for reference to introduce these two patents.

The minimum widith W of section 1660 is substantially with the length vertical survey of this section.If paper web is to be made by the fiber of single a kind of form, this width W only about half of less than the average fiber length of this fiber then, be preferably less than this fiber average fiber length about 1/4.If this paper web is to be made by the homogeneous mixture of the multi-form fiber that comprises hardwood and cork fibrous, the width W of section 1660 only about half of less than the average fiber length of the hardwood fiber that forms this paper web then; Be preferably less than the hardwood fiber that forms this paper web average fiber length about 1/4.On the other hand, if paper web comprises two or more layer, then width W should be less than near about 1/2 of the average fiber length of the fiber (being preferably hardwood fiber) in one deck of drip molding 1600; Be preferably less than 0 about 1/4.

For example, for a kind of batching of being made by 100% eucalyptus fiber, based on the average fiber length that is about 1.0mm, then width W should be less than about 0.5mm.In addition, if batching is made with 100% the northern softwood kraft fibers that average fiber length is about 3.0mm, then width W should be less than about 1.5mm.In one embodiment, width W can be less than or equal to about 0.38mm (being less than or equal to about 0.015 inch).

Section 1660 can be spaced apart, forms the channel width C (Fig. 9 and Figure 10) that is approximately 1.0mm～3.0mm (being approximately 2.0mm in one embodiment).Flow resistance 1652 and 1654 width W 2 are substantially equal to width W; And C2 is approximately 0.4～0.8mm less than C at interval.Flow resistance 1672 and 1674 size and dimension, the size and dimension with flow resistance 1650 and 1654 is identical basically.

Each decorative indicia that draws at last all includes high quantitatively zone 230, and this zone has the path shape that is roughly sealing that surrounds at least one unit 240 basically.Width (corresponding to channel width C) in the quantitative zone 230 of this height of measuring on any point of this closed path shape is approximately 1.0～3.0mm, is about 2.0mm in a preferred embodiment.

Wishing that all different wood pulps all are included in is used for paper fibre of the present invention.Yet, also can use other cellulosic pulp fiber, for example: the paper pulp of system such as cotton lining, bagasse, artificial silk.Here used wood pulp comprises chemical pulp (for example brown paper, sulphite and sulfate pulp); Mechanical pulp (for example base material wood pulp); Thermomechanical paper pulp; Chemistry thermomechanical paper pulp (CTMP).Can use the paper pulp of making by fallen leaves and coniferous tree.In addition, can also use other non-cellulosic fibres, for example synthetic fiber.

Bardwood pulp and softwood pulp can separately be used, or use together.Hardwood fiber and cork fibrous can mix.Perhaps another kind of scheme is, is deposited as several layers, forms a kind of paper web of layering.For the layering of hardwood fiber and cork fibrous is described, introduce No. 4300981, United States Patent (USP) authorizing Carstens on November 17th, 1981 and authorized people's such as Morgan No. 3994771, United States Patent (USP) on November 30th, 1976 for reference here.

This paper web can comprise various additives, and these additives comprise but are not limited to: such as the wet strength adhesive material, and the fiber binder material of dry strength adhesive material one class; The chemical tendering composition.Suitable wet strength adhesive includes, but are not limited to the Inc.Wilimington by Hercules, and Delaware is with trade mark KYMENE ^That 557H sells, such as the material of polyamide-3-chloro-1,2 expoxy propane resin one class.The polyacrylate that suitable temporary wet strength adhesive includes, but are not limited to synthesize.A kind of suitable temporary wet strength adhesive is American Cyanamid of Stanford, the PAREZ that CT introduces to the market ^750.

Suitable dry strength adhesive comprises such as carboxymethyl cellulose and cationic polymer (ACCO for example ^711) material of a class.The dry strength adhesive material of CYPRO/ACCO family can be from CYTEC of Kalamazoo, and MI buys.

The paper web that is deposited on the drip molding 1600 can comprise a kind of agent of dissociating, to prevent forming the bonding of certain fiber and fiber when paper web is dry.Dissociate agent with do the energy synthesis that wrinkling process forms on paper web, the part that can make paper web is loose (debulk) again.In one embodiment, the agent of dissociating can be applied on the fiber and forms a median fiber layer between two layers or multilayer.The effect of separating absciss layer is played in this intermediate layer between two fibrous outers.Therefore, wrinkling energy can make and separate absciss layer along this and make the part of paper web loose again.

The suitable agent of dissociating comprise as January 18 in 1994 order authorize the chemical tendering composition described in people's such as Phan No. 5279767, the United States Patent (USP).

Authorize on May 17th, 1994 in people's such as Phan No. 5312522, the United States Patent (USP), announced the biodegradable chemical tendering composition that some are suitable.Here No. 5279767 and No. 5312522 are for reference to introduce United States Patent (USP).This chemical tendering composition can be used as the agent of dissociating, and fiber and fiber are bonded together in the one or more fibrages that constitute paper web to stop.

A kind of suitable softening agent of fiber of a fibrage forming paper web 20 or a plurality of fibrages of being used for dissociating is the additive for paper making that comprises dibasic acid esters (touching sclerosis) 2 half fat alkyl dimethyl ammonium chlorides.A kind of suitable softening agent is Witco Company of Greenwich, the ADOGEN that CT sells ^The additive for paper making of board.

Although can use the suspension that is dispersed in water other liquid in addition, embryonic web 543 is preferably made by the water slurry of paper fibre.Fiber dispersion is in carrier liquid, and denseness reaches about 0.1～0.3%.Another program is, needn't bound by theory, the shaping operation that the present invention can be used for wetting, in this under situation fiber dispersion in carrier liquid, make denseness less than about 50%.In another embodiment, needn't be limited by theory, the present invention also can be used in the structure of air lay, comprises being used for the air lay paper web that is made of paper pulp fiber, synthetic fiber and their mixture.

The denseness of representing with percentage of suspension, thin pulp, paper web or other system, the weight that is defined as the dried fiber in the system that is considered 100 times of resulting quotient during divided by the gross weight of this system.Fibre weight is represented with the weight of the fiber that parches usually.

As shown in Figure 8, embryonic web 543 can form with a continuous paper-making process; Or another kind of method is to use batch production to constitute (for example manufacture process of tissue).After the suspension with paper fibre is deposited on the drip molding 1600, can utilize method well known to those of ordinary skill in the art, a part of aqueous suspension medium is discharged by drip molding 1600 make embryonic web 543.For water is removed,, can use vacuum tank, forming board, dewatering plate etc. to form the paper web 543 at initial stage from the water slurry of paper fibre.

Figure 11 is illustrated in an embryonic web that forms on the drip molding 1600.Have first and second surfaces embryonic web 543 547 and 549, that be substantially the monoplane that is essentially the monoplane in order to form, the difference in height D between the end face of flow resistance and the braiding substrate 1610 is preferably less than (0.006 inch of about 6 mil; 0.152mm); Better is that this difference in height D is less than about 3 mils.Best, this height D is about 1/6 less than the average fiber length of the fiber in the paper web, betterly is, less than about 1/6 of the average fiber length of the hardwood fiber in this paper web.

Embryonic web 543 transmits around revolution roller 1502 with drip molding 1600, and enters near the paper web supporting arrangement 2200.Making the next operation of this paper web 20, is that this embryonic web 543 is transferred on the supporting arrangement 2200 with first surface 2202 and second surface 2204 from drip molding 1600.The paper web (representing with label 545 among Fig. 8) that shifts is bearing on the first surface 2202 of this supporting arrangement 2200.Transferring on the point of paper web supporting arrangement 2200, the denseness of embryonic web is preferably about 5～20%.

In an embodiment of the paper web 20 of the sort of form shown in the shop drawings 1～4, this paper web supporting arrangement 2200 can comprise the dehydration woollen blanket of paper machine.As an example, a kind of suitable dehydration woollen blanket is Appleton Mills of Appleton, the press felt that Wisconsin makes.

The dehydration woollen blanket has band along the multi-filament yarn of machine direction (MD) with along the double braid substrate of the stack of the cable yarn of the one filament of machine movement horizontal direction (CD), this braiding substrate quantitatively be approximately 2.3 ounces/square feet, and the batt structure of layering (3 DENIER are to 15 DENIER) quantitatively is 2.2 ounces/square feet.The gas permeability of dehydration woollen blanket is about 22scfm.The paper web density that finally draws is uniform substantially.Perhaps, the structure of this paper web supporting arrangement 2200 can make this paper web have predetermined closely knit decorative pattern.

Paper web supporting arrangement 2200 can be according to any one the patent manufacturing in the following United States Patent (USP) with commonly-assigned us: No. 4514345, United States Patent (USP) authorizing people such as Johnson on April 30th, 1985; Authorized No. 4528239, the United States Patent (USP) of Trokhan on July 9th, 1985; No. 5098522, the United States Patent (USP) of authorizing on March 24th, 1992; Authorized people's such as Smurkoski No. 5260171, United States Patent (USP) on November 9th, 1993; Authorized No. 5275700, the United States Patent (USP) of Trokhan on January 4th, 1994; Authorized people's such as Rasch No. 5328565, United States Patent (USP) on July 12nd, 1994; Authorized people's such as Trokhan No. 5334289, United States Patent (USP) on August 2nd, 1994; Authorize people's such as Rasch No. 5431786, United States Patent (USP) July 11 nineteen ninety-five; Authorized people's such as Stelljes Jr No. 5496624, United States Patent (USP) on March 5th, 1996; Authorized people's such as Trokhan No. 5500277, United States Patent (USP) on March 19th, 1996; Authorized people's such as Trokhan No. 5514523, United States Patent (USP) on May 7th, 1996; Authorized people's such as Trokhan No. 5554467, United States Patent (USP) on September 10th, 1996; Authorized people's such as Trokhan No. 5566724, United States Patent (USP) on October 22nd, 1996; Authorized people's such as Trokhan No. 5624790, United States Patent (USP) on April 29th, 1997; Authorized people's such as Agers No. 5628876, United States Patent (USP) on May 13rd, 1997; Authorized people's such as Sanford No. 3301746, United States Patent (USP) on January 31st, 1967; Authorized No. 3905863, the United States Patent (USP) of Ayers on September 16th, 1975; Authorized No. 3974025, the United States Patent (USP) of Ayers on August 10th, 1976; Authorized No. 4191609, the United States Patent (USP) of Trokhan on March 4th, 1980; Authorized No. 4239065, the United States Patent (USP) of Trokhan on December 16th, 1980; Authorized No. 5366785, the United States Patent (USP) of Sawdai on November 22nd, 1994; With No. 5520778, the United States Patent (USP) of authorizing Sawdai on May 28th, 1996.Here it is for reference to introduce these patents.

Figure 12 and Figure 13 illustrate one and are used in the concrete paper web supporting arrangement 2200 that forms predetermined closely knit decorative pattern on the paper web.Referring to Figure 12 and Figure 13, paper web supporting arrangement 2200 comprises that dehydration woollen blanket layer 2220 and paper web add flower layer 2250.This paper web supporting arrangement 2200 can be the form of continuous band, is used for forming on the paper web on the dry paper machine and on paper web decorative pattern.Paper web supporting arrangement 2200 has the firstth paper side surface 2202 and opposing second surface 2204.In Figure 12, the first paper side surface 2202 of this paper web supporting arrangement 2200 is towards the observer.The first paper side surface 2202 comprises the first paper web contact surface and the second paper web contact surface.

In Figure 12 and Figure 13, the first paper web contact surface is the first woollen blanket surface 2230 of woollen blanket layer 2220.The first woollen blanket surface 2230 is arranged on first height 2231.First woollen blanket surface 2230 is the woollen blanket contact surface of paper web.Woollen blanket layer 2220 also has the second relative woollen blanket surface 2232.

In Figure 12 and Figure 13, the second paper web contact surface has paper web and adds flower layer 2250.The paper web that is connected with woollen blanket layer 2220 adds flower layer 2250, has paper web contact end face 2260 on second height 2261.When paper web being transferred on the paper web supporting arrangement 2200, the difference of first height, 2231 and second height 2261 is less than the thickness of this paper web.Surface 2260 and 2230 can be positioned on the sustained height, and therefore height 2231 is identical with 2261.Another kind of scheme is that surface 2260 can exceed surface 2230 slightly, or surface 2230 can exceed surface 2260 a little.

Above-mentioned difference in height is more than or equal to 0.0 mil, and less than about 8.0 mils.In one embodiment, for surface 24 smoother that keep paper web 20, this difference in height is less than about 6.0 mils (0.15mm), and more satisfactory is less than about 4.0 mils (0.10mm), is preferably less than about 2.0 mils (0.05mm).

Dehydration woollen blanket layer 2220 be can permeate water, can hold and comprise the water that from the wet web of paper fibre, extrudes.Paper web add flower layer 2250 be fluid-tight, therefore can not hold or comprise the water that from the paper web of paper fibre, extrudes.As shown in figure 12, paper web adds flower layer 2250 and can have continuous paper web contact end face 2260.Another scheme is that it can be discontinuous or semi-continuous that paper web adds the flower layer.

Paper web adds flower layer 2250 and preferably includes photosensitive resin, it can be used as a kind of liquid deposition on first surface 2230, and then solidified, make a part of paper web add flower layer 2250 and infiltrate in the first woollen blanket surface 2230, and bond together securely with it by emittance.Best, this paper web adds the full depth that flower layer 2250 does not pass woollen blanket layer 2220, but can pass less than the only about half of thickness of this woollen blanket layer 2220, to keep the flexibility and the compressibility, the particularly flexibility of this woollen blanket layer 2220 and compressibility of paper web supporting arrangement 2200.

Suitable dehydration woollen blanket layer 2220 comprises the nonwoven batt of being made by natural fabric or synthetic fiber 2240; This batt is connected with a supporting structure 2244 (Figure 13) of being made by braided filament with methods such as injecting the pin seam again.The material of making this nonwoven batt includes, but are not limited to: such as the natural fabric of wool one class with such as the synthetic fiber of polyester and nylon one class.The DENIER number of making the fiber of batt 2240 is about/90000 meters filament length of 3～20 grams.

Woollen blanket layer 2220 can have layer structure and can comprise the mixture of the fiber of various forms and size.The water that this woollen blanket layer 2220 can promote to receive from paper web transfers to the second woollen blanket surface 2232 from the first woollen blanket surface 2230.Woollen blanket layer 2220 has more carefully, the closeer fiber of tying up, be arranged on this first woollen blanket surface 2230 near.Compare with orifice size with the density near the woollen blanket layer 2220 on the second woollen blanket surface 2232, higher near the density of the woollen blanket layer 2220 on the first woollen blanket surface 2230, orifice size is less.Like this, the water that enters first surface 2230 can be sent from first surface 2230.

The thickness of dehydration woollen blanket layer 2220 is greater than about 2mm.In one embodiment, the thickness of dehydration woollen blanket layer 2220 is approximately 2～5mm.

In order to illustrate photosensitive resin is applied in the dehydration woollen blanket, or for corresponding dehydration woollen blanket is described, can be referring to following patent: be the PCT bulletin announced 11 days disclosed January in 1996 with people such as Trokhan name WO96/00812 number all, on August 22nd, 1996 disclosed WO96/25555 number, on August 22nd, 1996 disclosed WO96/25547 number; No. 08/701600, that on August 22nd, 1996 submitted to, as to be called " on the substrate of paper grade (stock), applying the method for resin " U.S. Patent application; The U.S. Patent application 08/640452 in April in 1996 30 " woollen blankets that have the high-hygroscopicity/antiradar reflectivity that adds the flower layer " that submit to, by name; No. 08/672293, the U.S. Patent application of " making the method for wet pressing thin paper with the infiltrative woollen blanket that has selection " that submit to on June 28th, 1996, by name; Authorized people's such as Trokhan No. 5556509, United States Patent (USP) on September 17th, 1996; Authorized people's such as Ampulski No. 5580423, United States Patent (USP) on December 3rd, 1996; Authorized No. 5609725, the United States Patent (USP) of Phan on March 11st, 1997; Authorized people's such as Trokhan No. 5629052, United States Patent (USP) on May 13rd, 1997; Authorized people's such as Ampulski No. 5637194, United States Patent (USP) on June 10th, 1997; Authorize people's such as McFarland No. 5674663, United States Patent (USP) with on October 7th, 1997.Here it is for reference to introduce these patents.

The gas permeability of dehydration woollen blanket layer 2220 is less than about 200 standard cube English/minute (Scfm).Here the gas permeability of representing with Scfm is that the pressure differential at dehydration woollen blanket thickness two ends is under the high situation of about 0.5 inches of water(in H, the measuring of the cubic feet per footage of per minute by the air of 1 square feet of area of this woollen blanket layer.In one embodiment, the gas permeability of this dehydration woollen blanket layer 2220 is about 5～200Scfm, is preferably less than about 100scfm.

The quantitative of dehydration woollen blanket layer 2220 is about 800～2000g/m ², its averag density (quantitatively divided by thickness) is about 0.35g/cm ³～0.45g/cm ³The gas permeability of above-mentioned paper web supporting arrangement 2200 is less than or equal to the gas permeability of woollen blanket layer 2220.

A kind of suitable woollen blanket layer 2220 is Appleton Mills of Appleton, Amflex 2 press felts that Wiscomsin company makes.The thickness of press felt 2220 is approximately 3mm, quantitatively is 1400g/m ², gas permeability is approximately 30scfm, it is double-deck supporting structure, have that the stubborn sth. made by twisting of the top of three layers of multi-filament and bottom warps and 4 layers of mono-filament forms, along the weavy grain of machine movement horizontal direction.Batt 2240 comprises that fiber number is approximately the nylon fiber of 3 DENIER, and the fiber number of the batt substrate below first surface 2230 is about 10～15 DENIER.

Paper web supporting arrangement 2200 shown in Figure 12 has paper web and adds flower layer 2250, and this continuous netted paper web contact end face 2260 that adds the flower layer has the opening 2270 of many dispersions.The shape of opening 2270 includes, but are not limited to: circle, the ellipse of major axis on machine direction (MD among the figure), polygon, the mixing of irregularly shaped or these shapes.As can be seen from Figure 9, the proj ected surface areas of continuous net-shaped end face 2260 be paper web supporting arrangement 2200 projected area about 5～75%; Be preferably paper web supporting arrangement 2200 projected area about 25～50%.

As shown in figure 12, continuous netted end face 2260 has the opening 2270 of about 10000 dispersions at least on every square metre projected area of paper web supporting arrangement 2200, more satisfactory is to have about 15000 at least, preferably has the opening 2270 of about 50000 dispersions at least.In one embodiment, continuous net-shaped end face 2260 every square metre have at least 100,000 discrete openings 2270.

Described in No. 4637859, the United States Patent (USP) of authorizing on January 20th, 1987, this discrete openings 2270 is two-way being staggered on the horizontal direction (CD) of machine direction (MD) and machine movement.Here it is for reference to introduce this patent.Following United States Patent (USP) relates to the drying of photopolymer resin structure and/or fabric: No. 5500277, United States Patent (USP), No. 5274930, United States Patent (USP), No. 5274930, No. 5275700, No. 4514345 and No. 5098522.Here it is for reference to introduce these patents.

Paper web is transferred on the above-mentioned paper web supporting arrangement 2200, and the first surface 547 of the feasible paper web 545 that shifts is bearing on the surface 2202 of supporting arrangement 2200, and consistent with the shape on surface 2202; And the part of paper web 545 is bearing on the surface 2260, and another part of paper web is bearing on the woollen blanket surface 2230.Basically remain single plane formula shape on second surface 549 macroscopic views of paper web.As can be seen from Figure 13, when paper web was transferred on the supporting arrangement 2200, the surface 2260 of paper web supporting arrangement 2200 and the surface difference in height between 2230 was very little, made on the second surface macroscopic view of this paper web and remained the single plane shape basically.Specifically on branchpoint, the difference in height on surface 2260 and 2230 is littler than the thickness of embryonic web.

The paper web 543 at initial stage is transferred to operation on the supporting arrangement 2200, can be added on the embryonic web 543 by pressure reduction at least in part and realizes fluid.As shown in Figure 8, can utilize a vacuum source 600 (for example vacuum shoe or vacuum roller), this embryonic web 543 to be transferred on the supporting arrangement 2200 from drip molding 1600 by the method for vacuum.For further dehydration, the downstream of the branchpoint of paper web is provided with one or more additional vacuum sources 620 in the early stage.

On this supporting arrangement 2200, this transfer paper web 545 is sent into along machine direction (MD among Fig. 8) in the nip 800 between the rigid surface 875 of Yankee drying cylinder 880 of vacuum pressure roller 900 and heating.Referring to Figure 14, put a steam baffle 2800 in the upstream of nip 800.When transmitted on vacuum pressure roller 900 on the surface 547 of paper web 545, this steam baffle was used for steam is imported the surface 549 of this paper web 545.

Steam baffle 2800 is installed in the opposite of the formation vacuum section 920 of vacuum pressure roller.Vacuum forms part 920 steam is sucked in paper web 545 and the woollen blanket layer 2220.The steam that is provided by steam baffle 2800 heats the water in paper web 545 and the woollen blanket layer 2220, thereby the viscosity of the water in paper web and the woollen blanket layer 2220 is reduced.Therefore, the water in paper web and the woollen blanket layer 2220 can be discharged by the vacuum that forms in the vacuum pressure roller 900 easilier.

During less than about 15 pounds/square inch, steam baffle 2800 can provide about 0.3 pound saturated vapor for every pound of dried fiber at pressure.Vacuum forms part 920 can form the high vacuum of about 1～15 inch of mercury on surface 2204, be preferably the high vacuum of about 3～12 inches of mercury.

A kind of suitable vacuum pressure roller 900 is a kind of suction-type puck that Winchester Roll Products company makes.A kind of suitable steam baffle 2800 is Measurex-Devron Conpanyof No.rth Vancouver, British Columbia, the D5A type steam baffle that Canada makes.

Vacuum forms part 920 and is communicated with a vacuum source (not shown).Vacuum formation part 920 is static with respect to the rotary surface 910 of vacuum pressure roller 900.Surface 910 can be boring or the surface that groove is arranged, and vacuum can be added on the surface 2204 by this surface.Rotate by direction shown in Figure 14 on surface 910.When paper web and supporting arrangement 2200 during by steam baffle 2800 and nip 800, vacuum forms part 920 and form vacuum on the surface 2204 of paper web supporting arrangement 2200.Though, only represented among the figure that a vacuum forms part 920, in other embodiments, may wish to have several vacuum of separating to form part.When paper web supporting arrangement 2200 during round vacuum pressure roller 900 motion, each above-mentioned vacuum of separating forms part and form different vacuum on this surface 2204.

The Yankee drying cylinder generally comprises the drum of a steam-heated steel or iron.Referring to Fig. 8 and Figure 14, the paper web 545 that is bearing on the supporting arrangement 2200 enters in the nip 800, and the more smooth second surface 549 of this paper web is transferred on the surface 875.In the upstream of nip, before this paper web was transferred to the point of surface on 875, nozzle 890 was coated with bonding agent and is applied on the surface 875.

Bonding agent is PVA-based bonding agent.In addition, this bonding agent also can be the CREPTROL of HerculesCompany of Wilmington Delaware manufacturing ^The bonding agent of board.Also can use other bonding agent.Generally, the embodiment on the drum 880 that paper web is transferred under greater than about 45% situation the Yankee drying cylinder in the denseness of paper web can use PVA-based wrinkling bonding agent.When the denseness of paper web 40% the time, can be used for example CREPTROL less than about ^The bonding agent of bonding agent one class.

Bonding agent (for example, the surface 875 by the Yankee drying cylinder applies) in many ways directly or indirectly is coated on the paper web.For example, the form that this bonding agent can fine droplet is sprayed on this paper web, or is sprayed on the drum surface 875 of Yankee drying cylinder.Another kind method is to utilize transfer rollers or brush that bonding agent is coated on the surface 875.In another embodiment, can wrinkling bonding agent be added on this paper web at the green end of paper machine, for example can be by bonding agent is added in the batching of flow box 500.On paper fiber per ton dry on the Yahkee drying cylinder 880, can apply about 2～4 pounds of bonding agents.

When paper web transmitted by nip 800 on supporting arrangement 2200, the vacuum of roller 900 formed part 920 and form vacuum on the surface 2204 of paper web supporting arrangement 2200.In addition, when paper web when transporting on the supporting arrangement 2200 by the nip 800 between vacuum pressure roller 900 and drying cylinder 800, the paper web of paper web supporting arrangement 2200 adds flower layer 2250 and forms on the first surface 547 of paper web 545 and surface 2260 corresponding decorative patterns.

See on second surface 549 macroscopic views and be essentially single plane shape surface.When paper web passed through nip 800, all second surfaces 549 reclined and are bonded on the surface 875 of drying cylinder basically.When shifting paper web by nip, second surface 549 is bearing on the smooth surface 875, keeps being essentially the single plane shape on the macroscopic view.Therefore, when second surface 549 remains single plane shape basically, on the first surface 547 of paper web 545, can form predetermined decorative pattern.

In the embodiment of non-air impingement drying, when paper web 545 is transferred on the surface 875, and surface 2260 decorative pattern forms decorative pattern and when making this paper web become closely knit selectively, the denseness of best paper web 545 is about 20～60% on this paper web.The decorative pattern on surface 2260 is given paper web, forms a continuous mesh-like area 330 and zone 340 a plurality of dispersions, that density is lower, and is such as shown in Figure 6 and Figure 7.

Needn't be limited by theory, can find out, because basic all second surfaces 549 abut on the surface 875 of Yankee drying cylinder, therefore, the drying of paper web 545 has only second surface than paper web several parts of selecting are dry much effective near the surface 875 of Yankee drying cylinder.

In addition, can also use a kind of Yankee of not having drying cylinder, unruffled process.As above-mentioned, the paper web at initial stage can form on a drip molding, makes it have decorative pattern quantitatively many and that naked eyes can pick out; But can not utilize Yankee drying cylinder or doctor blade to carry out drying.Little contraction that this paper web can wet to be formed on the intensity of machine direction, then, to utilize and carries out Tad.The European patent that announce with people such as Wendt name October 18 nineteen ninety-five is announced in 0677612A2 number, and a kind of papermaking process without the Yankee drying cylinder has been described.Here it is for reference to introduce this patent.

Figure 15～Figure 18 represents paper web 20 according to another embodiment of the invention.As can be seen from Figure 15, Figure 15～paper structure shown in Figure 180 comprises background parts 100 and about 10～50 decorative indicias 220 of dispersion on every square feet surface 22.

As shown in figure 15, background parts 100 can comprise at least 50% surface area of first surface 22.In one embodiment, background parts 100 comprises at least 70% the surface area on surface 22.

The decorative indicia 220 of each dispersion is separated by background parts 100 and adjacent decorative indicia 220.Decorative pattern 200 comprises at least one, and it is quantitatively quantitatively regional than the average quantitatively big height of background parts 100 on every side.

In Figure 15～Figure 18, each decorative indicia 220 all comprises a plurality of high by quantitative regional 230.These zones have formed the border of definite decorative indicia 220 shapes together.Best, high quantitatively zone 230 comprises about 30% surface area less than surface 22; Better is surface area less than about 15% surface 22.

Decorative indicia 220 shown in Figure 15～Figure 18 comprises a plurality of basically by the unit 240 of the borders encirclement of quantitatively regional 230 formation of height.Average quantitatively big than each unit 240 of high quantitatively zone 230 quantitative.Each unit 240 average quantitatively is substantially equal to the quantitatively average of background parts 100.

The background parts 100 of the paper web 20 of Figure 15～shown in Figure 180 comprises at least three by nonrandom, the repetitive mode configuration, zone quantitative inequality each other.Can find out that referring to Figure 17 and Figure 18 background parts 100 comprises quantitatively bigger, continuous mesh-like area 120; A plurality of dispersions, that on whole continuous mesh-like area 120, distribute, quantitative less zone 110; With a plurality of dispersions, each is all by quantitative less zone 110 area surrounded 130.Detect by an unaided eye, can distinguishable region 110 and zone 120, and quantitatively little than zone 120 of zone 110 quantitative.Detect by an unaided eye, but also distinguishable region 130 and zone 110, and zone 130 quantitatively between zone 120 and zone 110 quantitative.

In Figure 17 and Figure 18, each unit 240 comprises quantitative bigger, a continuous mesh-like area 244; A plurality of dispersions, be distributed on the whole continuous mesh-like area 244, quantitative less zone 242; With a plurality of dispersions, each is all by quantitative less zone 242 area surrounded 246.Quantitatively differing from one another of zone 242 and 244.The zone 242 quantitative than the zone 244 quantitatively little.Zone 246 quantitatively between zone 244 and zone 242 quantitative.

Quantitative predetermined variation in background parts 100 and the unit 240 can make decorative indicia 220 with the naked eye seem more eye-catching, thereby can make the decorative pattern of paper web more outstanding.

Figure 19 represents the cross-sectional view in different basis weights zone of the paper web 20 of Figure 15～shown in Figure 180.In Figure 19, quantitatively the representing of the different piece of paper web with thickness.The opacity of background parts 100 is approximately 3.0 at least.The opacity of unit 240 is approximately 3.0 at least.The opacity in high quantitatively zone 230 is greater than the opacity of background parts and unit 240.The high quantitatively opacity in zone 230 preferably is approximately 4.0 at least.

Compare with the high quantitatively opacity in zone 230 of decorative indicia 220, the difference of the opacity of background parts 100 and unit 240 can make the decorative indicia identification that detects by an unaided eye easily.Quantitatively and opacity, method described in " method of testing " joint is measured below available.

Figure 20 and Figure 21 represent the surface 24 of paper structure 20 of the sort of form of Figure 15～shown in Figure 180.Referring to Figure 20 and Figure 21, paper structure 20 comprises a continuous zone 330 netted, that density is higher; With many density lower, be dispersed in the zone 340 on the whole continuous mesh-like area 330.Continuous mesh-like area 330 is for paper web provides intensity, and the lower zone 340 of density provides bulk density and water imbibition for paper web.Zone 330 and 340 overlaps on background parts 100, high quantitatively zone 230 and the unit 240.

Figure 22 is the figure of drip molding 1600 that is used to form the quantitative predetermined variation of Figure 15～the sort of form shown in Figure 180.Figure 23 represents to be bearing in the embryonic web on the drip molding 1600.

Referring to Figure 22 and Figure 23, drip molding 1600 comprises the permeable braiding substrate 1610 of liquid and is dispersed in a plurality of flow resistances 1680 that weave in the substrate 1610.For the sake of clarity, only represented a part of braiding substrate 1610 among Figure 22.Generally, flow resistance 1680 for annular, hole 1681 passes each flow resistance 1680.As can be seen from Figure 22, drip molding 1600 comprises about 100,000～500000 flow resistances 1680 on every square metre.

Flow resistance 1680 comprises the photopolymer resin jut of casting in substrate 1610.These flow resistances 1680 have formed and the background parts 100 of the paper web 20 of Figure 15～the sort of form shown in Figure 180 and the catchment that unit 240 adapts.The zone 120 and the 240 corresponding catchments of the paper web of open network 1682 formation between the adjacent flow limited part 1680 and the sort of form shown in Figure 17.Hole 1681 formation and the zone 130 of the paper web of the sort of form shown in Figure 17 and 246 catchment.The upper surface of flow resistance 1680, form with the zone 110 and 242 of the paper web of the sort of form shown in Figure 17 accordingly, the zone of not draining in fact.

Flow resistance 1680 casting selectively forms the zone 1684 that does not have flow resistance 1680 basically in substrate 1610.These zones 1684 have formed the 230 corresponding catchments, high quantitatively zone with the paper web of the sort of form shown in Figure 17.Zone 1684 shown in Figure 22 is sections that separate, unconnected, and these sections are together corresponding to a decorative indicia.Another kind of scheme is to constitute single, a continuous closed path zone 1684, to form each decorative indicia.

The spacing distance X1 along between the Center-to-Center of machine direction (MD) that is arranged on the flow resistance 1680 in the substrate 1610 is approximately 2.0～3.0mm; Be approximately 2.0～3.0mm along the spacing distance X2 between the Center-to-Center of the horizontal direction (CD) of machine movement; Length X 3 along the MD direction is approximately 1.5～2.5mm; Be approximately 1.0～1.5mm with width X4 along the CD direction.The length X 5 in hole 1681 is approximately 0.7～1.1mm; Its width X6 is approximately 0.5～0.9mm.For the channel width C3 that makes zone 1684 is approximately 1.5～2.5mm, can from the some parts of substrate 1610, remove some flow resistances 1680 selectively.

Can utilize as shown in figure 12 paper web supporting arrangement to form the predetermined closely knit decorative pattern of zone 330 and 340 forms.Generally, the number in the zone 340 on the per unit area of paper structure 20 is less than the number in the zone 110 (or 130) on background parts 100 per unit areas.

Figure 24～Figure 27 illustrates paper web 20 according to another embodiment of the invention.As can be seen from Figure 24, Figure 24～paper structure shown in Figure 27 comprises background parts 100 and have the decorative indicia 220 of about 1～200 dispersion on every square feet surface 22.Background parts 100 can comprise 50% surface area of paper web first surface 22 at least, and in one embodiment, background parts 100 comprises at least 70% the surface area on surface 22.

Each decorative indicia 220 can comprise at least one its quantitatively greater than around the high quantitatively zone 230 of background parts 100.In Figure 24～Figure 27, each decorative indicia 220 comprises a plurality of high by quantitative regional 230.

Figure 24～decorative pattern 200 shown in Figure 27 comprises one or more low quantitatively zones.In Figure 24～Figure 27, decorative indicia 220 comprises low quantitatively zone 290 and 290A.Low quantitatively zone 290 and 290A quantitative than high quantitative regional 230 quantitatively little.Low quantitatively zone 290 and 290A are external with one or more high quantitative regional 230 basically.Low quantitatively zone 290 forms the border in the middle of the background parts 100.Low quantitative regional 290A forms quantitatively middle border, zone of adjacent height.By basically with overseas the connecing of one or more high quantification area, low quantitatively zone 290 and 290A can make the profile of seeing of decorative indicia loom large more.

In Figure 24, high quantitatively zone 230 comprise decorative indicia 220 surface area at least 70%, and high quantitatively zone accounts for the surface area of first surface 22 of paper web less than about 30%.

The background parts 100 of the paper web 20 of Figure 24-shown in Figure 27 comprises at least three dispose by mode nonrandom, that repeat, quantitative zones differing from each other.Background parts 100 comprises quantitatively bigger, continuous mesh-like area 120; A plurality of dispersions, quantitatively less, be dispersed in the zone 110 on whole continuous net-shaped regional 120; With a plurality of dispersions, each zone is substantially by quantitative less zone 110 area surrounded 130.Detecting by an unaided eye can distinguishable region 110 and zone 120, quantitatively little than zone 120 of zone 110 quantitative.But distinguishable region that detects by an unaided eye also 130 and zone 110, zone 130 quantitatively zone 120 and zone 110 quantitatively between.

Quantitative variation in background parts 100 and low quantitatively zone 290 and the 290A helps to make decorative indicia 220 with the naked eye to seem more remarkable, thereby the decorative pattern of paper web is more loomed large.

The opacity of background parts 100 is approximately 310 at least.The opacity in high quantitatively zone 230 is bigger than the opacity of background parts; Best, the high quantitatively opacity in zone 230 is approximately 4.0 at least.

Referring to Figure 26 and Figure 27, the zone 330 that paper web 20 comprises is continuous, netted, density is higher; With a plurality of dispersions, that density is lower, be dispersed in the zone 340 on the whole continuous mesh-like area 330.Continuous mesh-like area 330 is for paper web provides intensity, and the lower zone 340 of density provides bulk density and water imbibition for paper web.Zone 330 and 340 overlaps on background parts 100 and the high quantitatively zone 230.

Figure 28 is the figure of the drip molding 1600 of the quantitative predetermined variation of the sort of form that can be used for constituting Figure 24～shown in Figure 27.Drip molding 1600 comprises the permeable braiding substrate 1610 of liquid and is arranged on the flow resistance 1680 that weaves on the bottom 1610.For the sake of clarity, only represented a part of braiding substrate 1610 among Figure 28.Generally, flow resistance 1680 is an annular, and each fluid limited part 1680 is passed in hole 1681.The same as shown in figure 22, drip molding 1600 comprises about 100,000～500,000 fluid limited part 1680 on its every square metre.

Drip molding 1600 also comprises and low quantitatively zone 290 and the corresponding shaped form flow resistance 1686 of 290A shown in Figure 24～Figure 27.Curved flow resistance 1686 forms the periphery in the zone 1688 that does not have resin.Do not have the zone 1688 of resin to form and 230 corresponding catchments, high quantitatively zone, and flow resistance 1686 form and zone 290 and the corresponding in fact zone of not draining of 290A.Flow resistance 1686 also can be included in the multirow photopolymer resin that solidifies in the braiding substrate 1610.

Flow resistance 1680 can comprise the photopolymer resin ledge of a plurality of castings in substrate 1610.Flow resistance 1680 forms and background parts 100 corresponding catchments.Open network 1682 between adjacent flow resistance 1680 forms and 120 corresponding catchments, zone.Hole 1681 forms and 130 corresponding catchments, zone.The upper surface of flow resistance 1680 forms and the 110 corresponding in fact zones of not draining, zone.

Flow resistance 1680 casting selectively is the zone that does not have resin 1688 on border to surround with flow resistance 1686 in substrate 1610.Be positioned at the size X1～X6 of the flow resistance 1680 in the substrate 1610, identical with the corresponding size of embodiment shown in Figure 22, the width of flow resistance 1686 is less than about 0.01 foot.

Utilize paper web supporting arrangement as shown in figure 12, can form the predetermined closely knit decorative pattern of zone 330 and 340 forms.Generally, the number in the zone 340 on the per unit area of paper web 20 is more than the number of the zone on the per unit area of background parts 100 110 (or 130).

Example:

Following example illustrates experimental implementation of the present invention, but is not to only limit to these experimental implementation.

Example 1

At first, utilize traditional device of sizing mixing again to make the water thin pulp of northern softwood brown paper (NSK) fiber of 3% (by weight).In 0.2% ratio of dried fibres weight, in NSK gets the raw materials ready pipe, add 2% temporary wet strength resin solution (for example, by American Cyanamid Cotporation of Stanford, the PAREZ that CT sells ^750).Utilize fan pump that the NSK thin pulp is diluted to denseness and be approximately 0.2%.Then, utilize traditional device of sizing mixing again, make the water thin pulp of the eucalyptus fiber of 3% (percentage by weight).In 0.1% ratio of dried fibres weight, in the water thin pulp of eucalyptus fiber is got the raw materials ready pipe, add 2% the agent solution that dissociates (for example, by Witco Corporation of Dublin, the Adogen that OH sells ^SDMC).Utilize fan pump, eucalyptus fiber thin pulp is diluted to denseness is approximately 0.2%.

Treated batching stream mixes in flow box, forms the uniform fibers mixture; And be deposited on the drip molding of Fig. 9～the sort of form shown in Figure 11.Dehydration can be carried out on drip molding simultaneously, and utilizes deflector and vacuum tank to help dehydration.Drip molding comprises casting at Appleton Wire of Appleton, the photopolymer resin on the fourdrinier wire that Wisconsin makes; Fourdrinier wire is three layers a square weave structure, and per inch has 90 mono filaments on machine direction, and at the per inch in a lateral direction of machine movement 72 mono filaments is arranged.The diameter of mono filament is about 0.15～0.20mm.The gas permeability of fourdrinier wire is approximately 1050scfm.The photopolymer resin casting is on fourdrinier wire, and the difference D (Figure 11) that makes height is less than about 0.006 inch.The C value is approximately 2.0mm, and the W value is approximately 0.3mm, and the C2 value is approximately 0.5mm, and the W2 value is approximately 0.3mm.

The initial stage wet web is approximately in the denseness at branchpoint place under 10% the condition, is transferred on the dehydration woollen blanket from drip molding.Amflex 2 press felts that the dehydration woollen blanket is made for Appleton Mills.Woollen blanket comprises the nylon fiber batt.Surperficial DENIER (fiber number) number of batt is 3, and the DENIER number of substrate is 10～15.The quantitative of woollen blanket is 1436g/m ², its thickness is approximately 3mm, and gas permeability is approximately 30～40scfm.

Embryonic web is transferred on the woollen blanket, forms a paper web 545 that is substantially single plane shape.Transfer is carried out on vacuum transfer point, pressure differential is approximately 20 inches of mercury.Help draining to reach further dehydration by vacuum, be approximately till 25% until the fiber consistency of paper web.Then, as shown in Figure 8, paper web is sent in the nip.The case hardness of vacuum pressure roller is approximately 60P﹠amp; J.At least be approximately under 200 pounds/square inch in compaction pressure, paper web 545 and woollen blanket are pressed between vacuum pressure roller and the Yankee drying cylinder, paper web 545 is compacted on the Yankee drying cylinder.Make with doctor blade paper web dry wrinkling before, fiber consistency is increased at least about 90%.The oblique angle of doctor blade is about 20 °, is provided with respect to the Yankee drying cylinder, makes the angle of shock be approximately 76 °.The operating rate of Yankee drying cylinder is approximately 800fpm (feet per minute) (approximately 244m/min).Under the speed of 650fpm (200m/min), on the vacuum pressure roller, form the paper web of doing.

Ornamental paper web converts the outside a kind of two-layer bathing paper uniformly of its fourdrinier wire side (surface 22 among Fig. 5) to.Two-layer toilet paper quantitatively be approximately 25 pounds/3000 square feet, comprise about 0.2% temporary wet strength resins and about 0.1% the agent of dissociating.The two-layer thin paper that finally draws is very soft, and good water absorption is attractive in appearance, is suitable as bathing paper.

Example 2

At first, utilize traditional device of sizing mixing again to make the water thin pulp of northern softwood brown paper (NSK) fiber of 3% (by weight).In 0.2% ratio of dried fibres weight, in NSK gets the raw materials ready pipe, add 2% temporary wet strength resin solution (for example, by American Cyanamid Cotporation of Stanford, the PAREZ that CT sells ^750).Utilize fan pump that the NSK thin pulp is diluted to denseness and be approximately 0.2%.Then, utilize traditional device of sizing mixing again, make the water thin pulp of the eucalyptus fiber of 3% (percentage by weight).In 0.1% ratio of dried fibres weight, in the water thin pulp of eucalyptus fiber is got the raw materials ready pipe, add 2% the agent solution that dissociates (for example, by Witco Corporation of Dublin, the Adogen that OH sells ^SDMC) and 0.2% dry strength binder solution (for example, by National Starch andChemical Corporation of New York, the Redibonad that New York sells ^5320).Utilize fan pump, eucalyptus fiber thin pulp is diluted to denseness is approximately 0.2%.

Treated batching stream (batching stream 1=100%NSK/ batching stream 2=100% eucalyptus fiber), in flow box separately and be deposited on the drip molding of Fig. 9～the sort of form shown in Figure 11.Dehydration can be carried out on drip molding simultaneously, and utilizes deflector and vacuum tank to help dehydration.Drip molding comprises casting at Appleton Wire of Appleton, the photopolymer resin on the fourdrinier wire that Wisconsin makes; Fourdrinier wire is three layers a square weave structure, and per inch has 90 mono filaments on machine direction, and at the per inch in a lateral direction of machine movement 72 mono filaments is arranged.The diameter of mono filament is about 0.15～0.20mm.The gas permeability of fourdrinier wire is approximately 1050scfm.The photopolymer resin casting is on fourdrinier wire, and the difference D (Figure 11) that makes height is less than about 0.006 inch.The C value is approximately 2.0mm, and the W value is approximately 0.3mm, and the C2 value is approximately 0.5mm, and the W2 value is approximately 0.3mm.

The wet web at initial stage is approximately in the denseness at branchpoint place under 10% the condition, is transferred on the paper web supporting arrangement that includes the photopolymer resin layer that combines with the woollen blanket that dewaters, as shown in figure 12 from drip molding.Amflex 2 press felts that the dehydration woollen blanket is made for Appleton Mills.The paper web supporting arrangement has continuous meshy surface, about 60～80 holes 2270 (Figure 12) is arranged on per square inch.The projected area of resin equal the paper web supporting arrangement projected area about 35%.Paper web contact surface and the difference in height between the woollen blanket surface at resin are approximately 0.005 inch (0.127mm).

Embryonic web is transferred on the paper web bracing or strutting arrangement, forms the paper web 545 that is substantially single plane shape.Transfer is carried out on vacuum transfer point, pressure differential is approximately 20 inches of mercury.Help draining to reach further dehydration by vacuum, be approximately till 25% until the fiber consistency of paper web.Then, as shown in Figure 8, paper web is sent in the nip.The case hardness of vacuum pressure roller is approximately 60P﹠amp; J.By pressure paper web 545 and paper web supporting arrangement are pressed between vacuum pressure roller and the Yankee drying cylinder, paper web 545 is compacted on the Yankee drying cylinder with at least 800 pounds/square inches of resin surfaces; Described pressure calculates in the following manner: with the nip width of machine direction divided by with the long-pending percentage of resin surface on Pli (at the poundage of the horizontal direction per inch of machine movement) the nip load of expression and the per unit projected area of paper web supporting arrangement with decimal fraction (0.35) expression.Using doctor blade, make paper web dry wrinkling before, fiber consistency is increased to about at least 90%.The oblique angle of doctor blade is about 20 °, is provided with respect to the Yankee drying cylinder, makes the angle of shock be approximately 76 °, and the operating rate of Yankee drying cylinder is approximately 800fpm (feet per minute) (approximately 244m/min).Under the speed of 650fpm (200m/min), on the vacuum pressure roller, form the paper web of doing.

Ornamental paper web converts the outside a kind of two-layer bathing paper of its fourdrinier wire side (surface 22 among Fig. 5) to, and each layer comprises the outer and cork internal layer of hardwood.Two-layer toilet paper quantitatively be approximately 25 pounds/3000 square feet, comprise about 0.2% temporary wet strength resins and about 0.1% the agent of dissociating.The two-layer thin paper that finally draws is very soft, and good water absorption is attractive in appearance, is suitable as bathing paper.

Example 3

At first, utilize traditional device of sizing mixing again to make the water thin pulp of northern softwood brown paper (NSK) fiber of 3% (by weight).In 0.2% ratio of dried fibres weight, in NSK gets the raw materials ready pipe, add 2% temporary wet strength resin solution (for example, by American Cyanamid Cotporation of Stanford, the PAREZ that CT sells ^750).Utilize fan pump that the NSK thin pulp is diluted to denseness and be approximately 0.2%.Then, utilize traditional device of sizing mixing again, make the water thin pulp of the eucalyptus fiber of 3% (percentage by weight).In 0.1% ratio of dried fibres weight, in the water thin pulp of eucalyptus fiber is got the raw materials ready pipe, add 2% the agent solution that dissociates (for example, by Witco Corporation of Dublin, the Adogen that OH sells ^SDMC) and 0.2% dry strength binder solution (for example, by National Starch andChemicai Corporation of New York, the Redibonad that New York sells ^5320).Utilize fan pump, eucalyptus fiber thin pulp is diluted to denseness is approximately 0.2%.

Treated batching stream (batching stream 1=100%NSK/ batching stream 2=100% eucalyptus fiber), in flow box separately and be deposited on the drip molding of Figure 22～the sort of form shown in Figure 23 (perhaps, using drip molding shown in Figure 28).Dehydration can be carried out on drip molding simultaneously, and utilizes deflector and vacuum tank to help dehydration.Drip molding comprises casting at Appleton Wire of Appleton, the photopolymer resin on the fourdrinier wire that Wisconsin makes; Fourdrinier wire is three layers a square weave structure, and per inch has 90 mono filaments on machine direction, and at the per inch in a lateral direction of machine movement 72 mono filaments is arranged.The diameter of mono filament is about 0.15～0.20mm.The gas permeability of fourdrinier wire is approximately 1050scfm.The photopolymer resin casting is on fourdrinier wire, and the difference D (Figure 11) that makes height is less than about 0.006 inch.With reference to Figure 22, the C3 value is about 2.0mm, and the X1 value is approximately 2.4mm, and the X2 value is about 2.5mm, and the X3 value is approximately 1.9mm, and the X4 value is approximately 1.3mm.The MD length X % in hole 1681 is approximately 0.9mm, and the CD width is approximately 0.7mm.The C3 value is about 2.0mm.

The wet web at initial stage is approximately in the denseness at branchpoint place under 10% the condition, is transferred on the paper web supporting arrangement that includes the photopolymer resin layer that combines with the woollen blanket that dewaters, as shown in figure 12 from drip molding.Amflex 2 press felts that the dehydration woollen blanket is made for Appleton Mills.The paper web supporting arrangement has continuous meshy surface, about 60～80 holes 2270 (Figure 12) is arranged on per square inch.The projected area of resin equal the paper web supporting arrangement projected area about 35%.Paper web contact surface and the difference in height between the woollen blanket surface at resin are approximately 0.005 inch (0.127mm).

Embryonic web is transferred on the paper web bracing or strutting arrangement, forms the paper web 545 that is substantially single plane shape.Transfer is carried out on vacuum transfer point, pressure differential is approximately 20 inches of mercury.Help draining to reach further dehydration by vacuum, be approximately till 25% until the fiber consistency of paper web.Then, as shown in Figure 8, paper web is sent in the nip.The case hardness of vacuum pressure roller is approximately 60P﹠amp; J.By pressure paper web 545 and paper web supporting arrangement are pressed between vacuum pressure roller and the Yankee drying cylinder, paper web 545 is compacted on the Yankee drying cylinder with at least 800 pounds/square inches of resin surfaces; Described pressure calculates in the following manner: with the nip width of machine direction divided by with the long-pending percentage of resin surface on Pli (at the poundage of the horizontal direction per inch of machine movement) the nip load of expression and the per unit projected area of paper web supporting arrangement with decimal fraction (0.35) expression.Using doctor blade, make paper web dry wrinkling before, fiber consistency is increased to about at least 90%.The oblique angle of doctor blade is about 20 °, is provided with respect to the Yankee drying cylinder, makes the angle of shock be approximately 76 °, and the operating rate of Yankee drying cylinder is approximately 800fpm (feet per minute) (approximately 244m/min).Under the speed of 650fpm (200m/min), on the vacuum pressure roller, form the paper web of doing.

Ornamental paper web converts the outside a kind of two-layer bathing paper of its fourdrinier wire side (surface 22 among Fig. 5) to, and each layer comprises the outer and cork internal layer of hardwood.Two-layer toilet paper quantitatively be approximately 25 pounds/3000 square feet, comprise about 0.2% temporary wet strength resins and about 0.1% the agent of dissociating.The two-layer thin paper that finally draws is very soft, and good water absorption is attractive in appearance, is suitable as bathing paper.

Example 4

At first, utilize traditional device of sizing mixing again to make the water thin pulp of northern softwood brown paper (NSK) fiber of 3% (by weight).In 0.2% ratio of dried fibres weight, in NSK gets the raw materials ready pipe, add 2% temporary wet strength resin solution (for example, by American Cyanamid Cotporation of Stanford, the PAREZ that CT sells ^750).Utilize fan pump that the NSK thin pulp is diluted to denseness and be approximately 0.2%.Then, utilize traditional device of sizing mixing again, make the water thin pulp of the eucalyptus fiber of 3% (percentage by weight).In 0.1% ratio of dried fibres weight, in the water thin pulp of eucalyptus fiber is got the raw materials ready pipe, add 2% the agent solution that dissociates (for example, by Witco Corporation of Dublin, the Adogen that OH sells ^SDMC) and 0.2% dry strength binder solution (for example, by National Starch andChemical Corporation of New York, the Redibonad that New York sells ^5320).Utilize fan pump, eucalyptus fiber thin pulp is diluted to denseness is approximately 0.2%.

Treated batching stream (batching stream 1=100%NSK/ batching stream 2=100% eucalyptus fiber), in flow box separately and be deposited on the drip molding of Fig. 9～the sort of form shown in Figure 11.Dehydration can be carried out on drip molding simultaneously, and utilizes deflector and vacuum tank to help dehydration.Drip molding comprises casting at Appleton Wire of Appleton, the photopolymer resin on the fourdrinier wire that Wisconsin makes; Fourdrinier wire is three layers a square weave structure, and per inch has 90 mono filaments on machine direction, and at the per inch in a lateral direction of machine movement 72 mono filaments is arranged.The diameter of mono filament is about 0.15～0.20mm.The gas permeability of fourdrinier wire is approximately 1050scfm.The photopolymer resin casting is on fourdrinier wire, and the difference D (Figure 11) that makes height is less than about 0.006 inch.The C value is approximately 2.0mm, and the W value is approximately 0.3mm, and the C2 value is approximately 0.5mm, and the W2 value is approximately 0.3mm.

The wet web at initial stage is approximately in the denseness at branchpoint place under 10% the condition, from drip molding be transferred to braiding, with on the fabric of Tad/impression.Drying/impression fabric have dispersion, paper web impression presses joint, as described in No. 4191609, the United States Patent (USP), it is for reference to introduce patent here.The impression fabric of this drying forms two-way staggered constricted zone and non-constricted zone, as shown in No. 4191609, United States Patent (USP).The density of constricted zone is higher, and the density of constricted zone is not lower.

Utilize vacuum to help draining can further finish dehydration, be approximately till 28% until the fiber consistency of paper web.Paper web is dry in advance with the air that penetrates, and fiber drying to denseness is approximately 65% (weight), sends in the nip shown in Figure 8 800 again.With the wrinkling bonding agent of using of injection that contains 0.25% polyvinyl alcohol (PVA) aqueous solution, paper web is bonded on the surface of tub wheel of Yankee drying cylinder again.

Utilize doctor blade by making paper web dry wrinkling and take off from the Yankee drying cylinder.The oblique angle of doctor blade is approximately 25 °, and the Yankee drying cylinder forms about 81 ° angle of shock relatively.The operating rate of Yankee drying cylinder is approximately 800fpm (feet per minute) (being about 240m/min).Under the speed of 650fpm (200m/min), the paper web of doing rolls up.

Ornamental paper web converts the outside two-layer bathing of its fourdrinier wire side (surface 22 among Fig. 5) to paper (each layer comprises the outer and cork internal layer of hardwood).Two-layer toilet paper quantitatively be approximately 25 pounds/3000 square feet, comprise about 0.2% temporary wet strength resins and about 0.1% the agent of dissociating.The two-layer thin paper that finally draws is very soft, and good water absorption is attractive in appearance, is suitable as bathing paper.

Example 5

At first, utilize traditional device of sizing mixing again to make the water thin pulp of northern softwood brown paper (NSK) fiber of 3% (by weight).In 0.2% ratio of dried fibres weight, in NSK gets the raw materials ready pipe, add 2% temporary wet strength resin solution (for example, by American Cyanamid Cotporation of Stanford, the PAREZ that CT sells ^750).Utilize fan pump that the NSK thin pulp is diluted to denseness and be approximately 0.2%.Then, utilize traditional device of sizing mixing again, make the water thin pulp of the eucalyptus fiber of 3% (percentage by weight).In 0.5% ratio of dried fibres weight in the water thin pulp of an eucalyptus fiber is got the raw materials ready pipe, add 2% the agent solution that dissociates (for example, by Witco Corporation of Dublin, the Adogen that OH sells ^SDMC).Utilize fan pump, eucalyptus fiber thin pulp is diluted to denseness is approximately 0.2%.In the 3rd step, utilize traditional device of sizing mixing again to make the water thin pulp of the eucalyptus fiber of 3% (percentage by weight).In 0.1% ratio of dried fibres weight, in the water thin pulp of eucalyptus fiber is got the raw materials ready pipe, add 2% the agent solution that dissociates (for example, by Witco Corporation of Dublin, the Adogen that OH sells ^SDMC) and 0.2% dry strength binder solution (for example, by National Starch andChemical Corporation of New York, the Redibonad that New York sells ^5320).Utilize fan pump, eucalyptus fiber thin pulp is diluted to denseness is approximately 0.2%.

Treated batching stream (the eucalyptus fiber that batching 1=100%NSK/ batching stream 2=100% dissociates/batching stream 3=100% eucalyptus fiber) in flow box separately and be deposited on the drip molding of Figure 22～the sort of form shown in Figure 23 (perhaps, use drip molding shown in Figure 28).Dehydration can be carried out on drip molding simultaneously, and utilizes deflector and vacuum tank to help dehydration.Drip molding comprises casting at AppletonWire of Appleton, the photopolymer resin on the fourdrinier wire that Wisconsin makes; Fourdrinier wire is three layers a square weave structure, and per inch has 90 mono filaments on machine direction, and at the per inch in a lateral direction of machine movement 72 mono filaments is arranged.The diameter of mono filament is about 0.15～0.20mm.The gas permeability of fourdrinier wire is approximately 1050scfm.The photopolymer resin casting is on fourdrinier wire, and the difference D (Figure 11) that makes height is less than about 0.006 inch.With reference to Figure 22, the C3 value is about 2.0mm, and the X1 value is approximately 2.4mm, and the X2 value is about 2.5mm, and the X3 value is approximately 1.9mm, and the X4 value is approximately 1.3mm.The MD length X % in hole 1681 is approximately 0.9mm, and the CD width is approximately 0.7mm.The C3 value is about 2.0mm.

The wet web at initial stage is approximately in the denseness at branchpoint place under 10% the condition, is transferred on the paper web supporting arrangement that includes the photopolymer resin layer that combines with the woollen blanket that dewaters, as shown in figure 12 from drip molding.Amflex 2 press felts that the dehydration woollen blanket is made for Appleton Mills.The paper web supporting arrangement has continuous meshy surface, about 60～80 holes 2270 (Figure 12) is arranged on per square inch.The projected area of resin equal the paper web supporting arrangement projected area about 35%.Paper web contact surface and the difference in height between the woollen blanket surface at resin are approximately 0.005 inch (0.127mm).

Embryonic web is transferred on the paper web supporting arrangement, forms the paper web 545 that is substantially single plane shape.Transfer is carried out on vacuum transfer point, pressure differential is approximately 20 inches of mercury.Help draining to reach further dehydration by vacuum, be approximately till 25% until the fiber consistency of paper web.Then, as shown in Figure 8, paper web is sent in the nip.The case hardness of vacuum pressure roller is approximately 60P﹠amp; J.By pressure paper web 545 and paper web supporting arrangement are pressed between vacuum pressure roller and the Yankee drying cylinder, paper web 545 is compacted on the Yankee drying cylinder with at least 800 pounds/square inches of resin surfaces; Described pressure calculates in the following manner: with the nip width of machine direction divided by with the long-pending percentage of representing with decimal fraction (0.35) of the resin surface on Pli (at the poundage of the horizontal direction per inch of machine movement) the nip load of expression and the per unit projected area of paper web supporting arrangement.Using doctor blade, make paper web dry wrinkling before, fiber consistency is increased to about at least 90%.The oblique angle of doctor blade is about 20 °, is provided with respect to the Yankee drying cylinder, makes the angle of shock be approximately 76 °, and the operating rate of Yankee drying cylinder is approximately 800fpm (feet per minute) (approximately 244m/min).Under the speed of 650fpm (200m/min), on the vacuum pressure roller, form the paper web of doing.

Ornamental paper web converts the outside a kind of two-layer bathing paper of its fourdrinier wire side (surface 22 among Fig. 5) to, and each layer comprises the outer and cork internal layer of two hardwood.Two-layer toilet paper quantitatively be approximately 25 pounds/3000 square feet, comprise about 0.2% temporary wet strength resins and about 0.1% the agent of dissociating.The two-layer thin paper that finally draws is very soft, and good water absorption is attractive in appearance, is suitable as bathing paper.

Method of testing

Total TENSILE STRENGTH:

Total TENSILE STRENGTH of paper web is authorized the method for the measurement " dry tensile strength " described in people's such as kearney No. 4225382, the United States Patent (USP) and is measured according on September 30th, 1980.Here it is for reference to introduce patent.

The stretching of MD and CD direction:

The stretching of MD (machine direction) and CD (machine movement laterally) is measured by the method for No. 4225382 described measurements of United States Patent (USP) " stretching ".Here it is for reference to introduce patent.

The dry rupture strength of thin paper can be utilized from Thwing-Albert Instrument CO. (10960, Dutton road, Philadaphia, the Thwing-Albeat burst test machine catalogue of the power sensor that PA.19154) obtains, be equipped with one 2000 gram is determined for No. 177.The thin paper sample is placed on temperature and is about 73 ± 2 and relative humidity and was about 50 ± 2% air-conditioned room about at least 24 hours.Utilize paper cutter the thin paper test specimen to be cut into rectangular being for experiment of 8 about 4.5 inches wide (CD directions) and 12 inches long (MD directions).Each is rectangular all to be placed on the following annulus of test specimen clamping device, and the fourdrinier wire side that makes test specimen makes test specimen cover down the hole of annulus fully up, and the fraction of test specimen extends on the external diameter of annulus down.Test specimen is rectangular be placed on down on the annulus position well after, utilize pneumatic gripping device will go up annulus and descend, test specimen is clamped in up and down between the annulus.Aperture on the following annulus is approximately 3.5 inches, and diameter of plunger is about 0.6 inch.The starting test machine makes plunger rise with the speed of 5 inch per minutes, and paper is broken.When test was broken, testing machine directly showed the rupture strength value with the gram numerical table.8 rectangular 8 result of the tests that draw of test specimen are average, get immediate gram number scale and record, as the rupture strength value of paper test specimen.

Surface flatness:

The paper surface smoothness can be measured according to people's such as Ampulski in 1, the 19 page of the international paper physics meeting TAPPI collection of thesis in 1991 the measuring method that is entitled as the physiology surface flatness (PSS) described in " the engineering properties measuring method of thin paper " literary composition.Here it is for reference to introduce this paper.As described in the above-mentioned article, used here PSS measurement is the amplitude sum of pointwise.Measuring method described in the article is No. 4959125, the United States Patent (USP) of authorizing Spendel and authorize in people's such as Ampulski No. 5059282, the United States Patent (USP) explanation is also arranged.Here it is for reference to introduce these two patents.

In order to test paper test specimen of the present invention, adopted the method for measuring PSS in the above-mentioned article to measure surface flatness, but done following improvement:

Not as described in the above-mentioned article, the data that quantize of 10 test specimens are imported SAS software to (amplitude and time), but utilize Naional Instrumlnts of Austin, the LABVIEW board software that Texas company sells, by the data of collection, digitlization and 10 test specimens of statistical disposition, measure the surface flatness of paper web.Utilize " amplitude and the phase spectrum vi " module in the LABVIEW software kit to produce each amplitude spectrum; And select " amplitude spectrum value Vrms " as output spectra.To each test specimen in 10 test specimens, all draw an output spectra.

In LABVIEW software, utilize following weight coefficient 0.000246,0.000485,0.00756,0.062997, each output spectra is carried out smoothing handle.Select these weight coefficients to imitate in the above-mentioned article smoothing that the weight coefficient 0.0039,00077,0.120,1.0 to the SAS procedure stipulation carries out.

After smoothing, utilize the frequency filter described in the above-mentioned article, each spectrum is carried out filtering.Then, as described in the above-mentioned article, calculate the PSS value in micron of the spectrum of each filtering.The surface flatness of paper web is the mean value of 10 PSS measured values of 10 test specimens being got from the same surface of paper web.Similarly, can measure paper web apparent surface's surface flatness.Smoothness is than obtaining divided by the less surface flatness value corresponding with the more smooth one side of paper web by surface flatness value that will be simultaneously corresponding with the more texture of paper web.

Opacity:

With the thin paper test specimen of measuring, with have standard density band (#61254, X-Rite Corp.Grandville, X-Rite transmission density standard MI) is placed on the scanning board of an AGFA Arcus II flat-bed scanner (BagerCorp.Wilmington MA) together.Utilize the V.3.00.00 automatic gray scale setting of software of AGFA Fotolook, with utilize at Microsoft (Red-mond, WA) DellDimen.Sion XPS 266PII (the Dell Computers company of 95 times operations of Window, Austin, TX), as the image (5.57 inches * 8.50 inches) of 16 digital files preservations of TIEF, with the rate scanning test specimen and the standard of 240dpi (data/inch).

With the image that produced input Optimas V6.11 image analysis software (Optimas Corp, Bothell, WA).Utilize the light intensity calibrating function to come the band of density of three standards of identification, and utilize the density mode of average antilogarithm gray value (mLIGV), storage and corresponding three calibration values of these standard density bands (0.04,0.24 and 1.49 optical density (OD)).Demarcation shows one 0.9999 r square value, and residual error is 0.0077 density value.

For each the thin paper zone that will measure (for example, background parts 100, high quantitatively zone 230), define a ROI (interesting areas).Polygon interesting areas (ROI) instrument in the Optimas software can be utilized, ROI can be determined.Then, utilize the Data Explorer function in the Optimas software, measure the mLIGV (optical density (OD)) of each ROI, and the result is kept in the expanded view tabular form file (for example, utilizing EXCEL board or other suitable expansion graphic softwares).

Opacity is defined as:

Optical density (OD)=Log (opacity)

And in the formula of opacity=(Io/It): the light intensity of Io-incident light;

The light intensity of It-transmitted light.

The opacity (dimensionless) of report is calculated as the antilogarithm (is the end with 10) of measured optical density (OD).

Quantitatively:

Paper web quantitatively (macroscopical is quantitative) available following method is measured.

The paper of measuring is placed in the air-conditioned room of 71～75 and 48～52% relative humidity, at least 2 hours.Be cut into 12 3.5 inches * 3.5 inches measurement test specimen through the paper of overbalance.The suitable dull and stereotyped pressure cutting knife of Thwing-Alkert Alfa hydraulic pressure test specimen cutting knife one class of utilization such as 240-10 type once cuts out 6 test specimens.Two 6 test specimens heap is the pile of synthetic 12 layers again, and in the air-conditioned room of 71～75 and 48～52% relative humidity, keeps at least 15 minutes again.

On the analytical balance of a demarcation, weigh up the weight of the pile test specimen of 12 layers then.It lies in the same air-conditioned room of balance test specimen.The A200S type balance that a kind of suitable balance is made for Sarforius InstrumentCompany.This weight is the pile weight of 12 layers of 12.25 square inches for every layer area with the gram expression.

With pound/3000 square feet is quantitative (weight of one deck paper unit are) of the paper web of unit, and available following formula calculates:

The weight of the pile of 12 layers (g) * 3000 * 144 square inch/square feet.

(453.6 gram/pound) * (12 layers) * (12.25 square inches/every layer)

Or simply:

Quantitatively (pound/3000 feet ²The weight (g) * 6.48 of the pile of)=12 layer.

Background parts quantitatively:

Utilize following method measure paper web background parts 100 quantitatively.Downcut the test specimen (test specimen does not comprise the part of decorative indicia or decorative indicia) of background parts from paper web.Test specimen is cut greatly as far as possible, but does not comprise decorative indicia.Measure the area of each test specimen, weigh up the weight of test specimen.Background parts quantitatively by the weight of the test specimen area divided by test specimen is calculated.At least measure three test specimens, and the result is average, to draw the quantitatively average of background parts.

, and do not comprise beyond the high quantitatively zone 230 that the average quantitatively general available quantitative identical method with the measurement background parts of unit 240 is measured except the test specimen of unit 240 is to downcut from decorative indicia.

High quantitatively zone quantitatively:

Can utilize image analysis method to determine the quantitative of high quantitatively zone 230.The quantitative methods of measured zone 230 is as described below.

Utilize a computer, a scanner and an image analysis software program are determined the high quantitatively surface area in zone 230.A kind of suitable computer is a Dell Dimension XPS-266MHz Pentium II computer, or other suitable computers.Suitable scanner is that Belgian AGFA-Gevaerf N.V. company sells, and resolution ratio is the scanner of the AGFA Arcus II trade mark of 600dpi.Suitable image analysis software is Optimas Corp.Bothell, Optimas 6.1 versions that Washington company sells.

Utilize following method to remove the surface area that scans test specimen and measure the high quantitative zone in the test specimen, downcut test specimen from a paper web, each test specimen comprises a decorative indicia that is surrounded by background parts.Weigh up the weight of each test specimen, to draw the gross weight TW of test specimen.

In scanning process, in order to form a dark background, each test specimen all is placed on the black paper.Utilize AGFA Arcus II type scanner scanning test specimen.Utilize 4.0 editions softwares of Adobe Photoshop Version, image scanning is gone in the computer.Adobe software can enlarge with the Fotolook P.S.2.09 board plug-in module that AGFA-Gevaert company sells.The setting of scanning can be set for: automatic scan, resolution ratio are 600dpi, gray scale (achromatization).Test specimen can scan with a ruler, demarcates so that carry out geometry.

Then, in image analysis software, the scan image of each test specimen is swept out, and demarcated with the ruler image.Calibration factor is about 235.2 pixel/millimeters.Image analysis software is used for measuring according to the periphery of test specimen the gross area of test specimen.

Can utilize image analysis software to sketch the contours of the high quantitatively profile in zone, and calculate high quantitatively total surface area in zone.Also can utilize Optimas software with the polygon sense rise regional instrument and make the high quantitatively profile in zone.In addition, can utilize Optimas software with Measurtment Explorer instrument (parameter m Ar area) determine to make the high quantitatively area in zone of profile.

After utilizing image analysis software to measure the surface area in high quantitative zone,, can determine the quantitative of high quantitatively zone by separating the BW1 in the following equation:

TW=(BW1)×(AREA1)+(BW2)×(AREA2)，

In the formula: TW is the gross weight with test specimen of decorative indicia; BW1 is the quantitative of high quantitatively zone; AREA1 is the high quantitatively area of measuring with image analysis software in zone; BW2 is for as mentioned above, the background area that the test specimen that downcuts from background parts is measured quantitatively; AREA2 is the value that is worth going out that the gross area (periphery according to test specimen calculates) of test specimen deducts AREA1.Therefore, can utilize following formula, obtain the value of BW1.At least to measure three test specimens, and the result is average, to determine the quantitative of high quantitatively zone.

When height when quantitatively zone be a sort of form shown in Figure 24, can as above-mentioned for as described in the background parts 100 (or unit 240) like that, go to measure high quantitative regional quantitative.Can downcut the maximum as far as possible test specimen in high quantitatively zone from the thin paper test specimen.Measure the area of test specimen and the weight of test specimen, can determine the quantitative of high quantitatively zone.At least to measure three test specimens, and the result is average, to determine the quantitative of high quantitatively zone.

Claims (10)

1. One kind have first surface and with the paper web of its opposing second surface, being characterized as of this paper web:

   Background parts; With

   The decorative pattern of non-embossing, wherein, this decorative pattern comprises at least one, and it is quantitatively quantitatively regional than the quantitative big height of background parts on every side.
2. 2. paper web as claimed in claim 1 is characterized in that, background parts on average quantitatively be approximately 15g/m at least ², and decorative pattern comprise at least one its quantitatively at least than average quantitatively big about the 1.25 times high quantitatively zone of background parts.
3. 3. paper web as claimed in claim 1 or 2 is characterized in that background parts comprises at least 2, is preferably 3 by nonrandom repetitive mode zone quantitative inequality configuration, each other.
4. 4. as any one described paper web in the claim 1～3, it is characterized in that, in decorative pattern, at least one low quantitative zone basically with overseas the connecing of one or more high quantification area.
5. 5. paper web, comprise first surface and and opposing second surface, it is characterized in that:

   At least three zones dispose according to nonrandom repetitive mode, and these three zones have at least selected from quantitative, density, a thickness and fibre composition character differing from each other; Wherein, paper web comprises the decorative pattern of background parts and non-embossing; And the opacity of a decorative pattern part is greater than the opacity of background parts at least.
6. 6. paper web as claimed in claim 5 is characterized in that, background parts comprises at least two zones by the configuration of nonrandom repetitive mode, described at least two zones quantitatively differing from each other.
7. 7. as claim 5 or 6 described paper webs, it is characterized in that, at least a portion of paper web is become closely knit selectively, with form higher, the continuous mesh-like area of density and a plurality of dispersions, that density is lower, be dispersed in the zone on the whole continuous mesh-like area.
8. 8. one kind has at least two by the configuration of nonrandom repetitive mode, the production method of the paper web in selected at least one zone differing from each other in nature that goes out in quantitative, density, thickness and fibre composition; The method is characterized in that it comprises the following steps:

   Many fibers that are suspended in the liquid-carrier are provided;

   Provide and have liquid and can see through the drip molding zone, that keep fiber;

   Fiber and liquid-carrier are deposited on this drip molding;

   Discharge liquid-carrier simultaneously by this drip molding, form the paper web with background parts and decorative pattern, wherein, decorative pattern comprises at least one its quantitative quantitative big high quantitatively zone than background parts on every side.
9. 9. method as claimed in claim 8 is characterized in that, also comprises the following steps:

   Provide have paper web add spend the surface the paper web supporting arrangement;

   The paper web that paper web is transferred to this paper web supporting arrangement from drip molding adds to be spent on the surface;

   Make at least a portion of the background parts of this paper web become closely knit selectively, so that in quantitatively bigger zone, form the decorative pattern of the nonrandom repetition in the higher and lower zone of density.
10. 10. method as claimed in claim 8 or 9 is characterized in that, also comprises the following steps: to make selectively at least a portion of the background parts of this paper web to become closely knit, so that form the decorative pattern of the nonrandom repetition in the higher and lower region of density.

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